feat: implement auto reconnect#11

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Merged
jlenon7 merged 1 commit into from
Aug 10, 2026
Merged

feat: implement auto reconnect #11

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4 changes: 2 additions & 2 deletions package-lock.json
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2 changes: 1 addition & 1 deletion package.json
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Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
{
"name": "@athenna/cache",
"version": "5.10.0",
"version": "5.11.0",
"description": "The cache handler for Athenna Framework.",
"license": "MIT",
"author": "João Lenon <lenon@athenna.io>",
Expand Down
82 changes: 75 additions & 7 deletions src/cache/drivers/RedisDriver.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -56,6 +56,26 @@ export class RedisDriver extends Driver<RedisClientType> {
*/
public database: number

/**
* In-flight resurrection attempt, shared so concurrent commands
* don't race multiple connect() calls against a closed client.
*/
private reconnectPromise: Promise<void> = null

/**
* Log without ever throwing: driver logs fire from node-redis event
* listeners and reconnect callbacks, where an exception (e.g. Logger
* service not bound in the container) would crash the process over a
* cache connection blip.
*/
private log(level: 'success' | 'warn' | 'error', message: string) {
try {
Log.channelOrVanilla('application')[level](message)
} catch {
/* logging must never take the process down */
}
}

public constructor(
store: string,
client: any = null,
Expand DownExpand Up@@ -109,13 +129,21 @@ export class RedisDriver extends Driver<RedisClientType> {
const config = Config.get(`cache.stores.${this.store}`)
const { createClient } = this.getRedis()

/**
* Never stop retrying: returning an Error here makes node-redis close
* the client permanently, so a Redis restart longer than the retry
* window would leave every future command throwing "The client is
* closed" until the process restarts.
*/
const defaultReconnectStrategy = (retries: number) => {
if (retries >= 5) {
return new Error(
`Cache store "${this.store}": max reconnect retries reached`
if (retries > 0 && retries % 10 === 0) {
this.log(
'warn',
`Cache store ({yellow} ${this.store}) still reconnecting after ${retries} retries`
)
}
return Math.min(retries * 200, 2000)

return Math.min(retries * 200, 5000)
}

this.client = createClient({
Expand All@@ -129,7 +157,8 @@ export class RedisDriver extends Driver<RedisClientType> {
// Required: without this listener node-redis emits 'error' events as
// unhandled rejections whenever the connection drops after initial connect.
this.client.on('error', err => {
Log.channelOrVanilla('application').error(
this.log(
'error',
`({red} Error) on ({yellow} ${this.store}) cache store: ${err.message}`
)
})
Expand All@@ -138,13 +167,15 @@ export class RedisDriver extends Driver<RedisClientType> {
.connect()
.then(() => {
if (Config.is('rc.bootLogs', true)) {
Log.channelOrVanilla('application').success(
this.log(
'success',
`Successfully connected to ({yellow} ${this.store}) cache store`
)
}
})
.catch(err => {
Log.channelOrVanilla('application').error(
this.log(
'error',
`Failed to connect to ({yellow} ${this.store}) cache store: ${err.message}`
)
})
Expand All@@ -157,6 +188,35 @@ export class RedisDriver extends Driver<RedisClientType> {
}
}

/**
* Reconnect a client that node-redis has permanently closed — a custom
* reconnect strategy that gave up, or a connection that never came up at
* boot. Without this, every command on that client throws "The client is
* closed" until the process restarts; with it, the next command heals the
* connection instead.
*/
private async ensureConnection() {
if (!this.client || this.client.isOpen) {
return
}

if (!this.reconnectPromise) {
this.reconnectPromise = this.client
.connect()
.then(() => {
if (Config.is('rc.bootLogs', true)) {
this.log(
'success',
`Reconnected to ({yellow} ${this.store}) cache store`
)
}
})
.finally(() => (this.reconnectPromise = null))
}

await this.reconnectPromise
}

/**
* Close the connection with the client in this instance.
*/
Expand All@@ -183,6 +243,8 @@ export class RedisDriver extends Driver<RedisClientType> {
return
}

await this.ensureConnection()

let cursor = '0'

do {
Expand All@@ -207,6 +269,8 @@ export class RedisDriver extends Driver<RedisClientType> {
return
}

await this.ensureConnection()

const value = await this.client.get(this.getCacheKey(key))

if (Is.Null(value) || Is.Undefined(value)) {
Expand DownExpand Up@@ -237,6 +301,8 @@ export class RedisDriver extends Driver<RedisClientType> {
return
}

await this.ensureConnection()

const driverOptions: any = {}

options = Options.create(options, {
Expand DownExpand Up@@ -277,6 +343,8 @@ export class RedisDriver extends Driver<RedisClientType> {
return
}

await this.ensureConnection()

await this.client.del(this.getCacheKey(key))
}
}
8 changes: 5 additions & 3 deletions src/types/StoreOptions.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -87,10 +87,12 @@ export type StoreOptions = {
* Define a custom reconnect strategy for the Redis connection.
* Receives the number of retries so far. Return a number (ms delay
* before next retry) or an Error to stop retrying and reject all
* pending commands. Defaults to exponential backoff that gives up
* after 5 retries.
* pending commands. By default the driver retries forever with a
* capped backoff (retries * 200ms, max 5s), since giving up leaves
* the client permanently closed. Even if a custom strategy gives up,
* the next command issued through the driver reconnects the client.
*
* @default built-in exponential backoff, max 5 retries
* @default built-in capped backoff (retries * 200ms, max 5s), never gives up
*/
reconnectStrategy?: (retries: number) => number | Error
}
Expand Down
34 changes: 34 additions & 0 deletions tests/unit/cache/drivers/RedisDriverTest.ts
View file
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Original file line numberDiff line numberDiff line change
Expand Up@@ -81,6 +81,40 @@ export class RedisDriverTest {
assert.deepEqual(driver.client, { hello: 'world' })
}

@Test()
public async shouldResurrectAClosedClientOnTheNextCommand({ assert }: Context) {
const cache = Cache.store('redis')

await Sleep.for(100).milliseconds().wait()

await cache.set('resurrect', 'alive')

cache.driver.client.destroy()

assert.isFalse(cache.driver.client.isOpen)

const value = await cache.get('resurrect')

assert.equal(value, 'alive')
assert.isTrue(cache.driver.client.isOpen)
}

@Test()
public async shouldShareASingleReconnectAttemptBetweenConcurrentCommands({ assert }: Context) {
const cache = Cache.store('redis')

await Sleep.for(100).milliseconds().wait()

await cache.set('concurrent', 'ok')

cache.driver.client.destroy()

const values = await Promise.all([cache.get('concurrent'), cache.get('concurrent'), cache.get('concurrent')])

assert.deepEqual(values, ['ok', 'ok', 'ok'])
assert.isTrue(cache.driver.client.isOpen)
}

@Test()
public async shouldBeAbleToSetValueToTheCache({ assert }: Context) {
const cache = Cache.store('redis')
Expand Down
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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feat: implement auto reconnect#11

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 Merged

jlenon7
merged 1 commit into

from

Aug 10, 2026
 Merged


feat: implement auto reconnect
#11
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4 changes: 2 additions & 2 deletions
package-lock.json

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2 changes: 1 addition & 1 deletion
package.json

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Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
{
 "name": "@athenna/cache",
 "version": "5.10.0",
 "version": "5.11.0",
 "description": "The cache handler for Athenna Framework.",
 "license": "MIT",
 "author": "João Lenon <lenon@athenna.io>",
Expand Down

82 changes: 75 additions & 7 deletions
src/cache/drivers/RedisDriver.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -56,6 +56,26 @@ export class RedisDriver extends Driver<RedisClientType> {
 */
 public database: number

 /**
 * In-flight resurrection attempt, shared so concurrent commands
 * don't race multiple connect() calls against a closed client.
 */
 private reconnectPromise: Promise<void> = null

 /**
 * Log without ever throwing: driver logs fire from node-redis event
 * listeners and reconnect callbacks, where an exception (e.g. Logger
 * service not bound in the container) would crash the process over a
 * cache connection blip.
 */
 private log(level: 'success' | 'warn' | 'error', message: string) {
 try {
 Log.channelOrVanilla('application')[level](message)
 } catch {
 /* logging must never take the process down */
 }
 }

 public constructor(
 store: string,
 client: any = null,
Expand DownExpand Up@@ -109,13 +129,21 @@ export class RedisDriver extends Driver<RedisClientType> {
 const config = Config.get(`cache.stores.${this.store}`)
 const { createClient } = this.getRedis()

 /**
 * Never stop retrying: returning an Error here makes node-redis close
 * the client permanently, so a Redis restart longer than the retry
 * window would leave every future command throwing "The client is
 * closed" until the process restarts.
 */
 const defaultReconnectStrategy = (retries: number) => {
 if (retries >= 5) {
 return new Error(
 `Cache store "${this.store}": max reconnect retries reached`
 if (retries > 0 && retries % 10 === 0) {
 this.log(
 'warn',
 `Cache store ({yellow} ${this.store}) still reconnecting after ${retries} retries`
 )
 }
 return Math.min(retries * 200, 2000)

 return Math.min(retries * 200, 5000)
 }

 this.client = createClient({
Expand All@@ -129,7 +157,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 // Required: without this listener node-redis emits 'error' events as
 // unhandled rejections whenever the connection drops after initial connect.
 this.client.on('error', err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `({red} Error) on ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -138,13 +167,15 @@ export class RedisDriver extends Driver<RedisClientType> {
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 Log.channelOrVanilla('application').success(
 this.log(
 'success',
 `Successfully connected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .catch(err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `Failed to connect to ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -157,6 +188,35 @@ export class RedisDriver extends Driver<RedisClientType> {
 }
 }

 /**
 * Reconnect a client that node-redis has permanently closed — a custom
 * reconnect strategy that gave up, or a connection that never came up at
 * boot. Without this, every command on that client throws "The client is
 * closed" until the process restarts; with it, the next command heals the
 * connection instead.
 */
 private async ensureConnection() {
 if (!this.client || this.client.isOpen) {
 return
 }

 if (!this.reconnectPromise) {
 this.reconnectPromise = this.client
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 this.log(
 'success',
 `Reconnected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .finally(() => (this.reconnectPromise = null))
 }

 await this.reconnectPromise
 }

 /**
 * Close the connection with the client in this instance.
 */
Expand All@@ -183,6 +243,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 let cursor = '0'

 do {
Expand All@@ -207,6 +269,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const value = await this.client.get(this.getCacheKey(key))

 if (Is.Null(value) || Is.Undefined(value)) {
Expand DownExpand Up@@ -237,6 +301,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const driverOptions: any = {}

 options = Options.create(options, {
Expand DownExpand Up@@ -277,6 +343,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 await this.client.del(this.getCacheKey(key))
 }
}

8 changes: 5 additions & 3 deletions
src/types/StoreOptions.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -87,10 +87,12 @@ export type StoreOptions = {
 * Define a custom reconnect strategy for the Redis connection.
 * Receives the number of retries so far. Return a number (ms delay
 * before next retry) or an Error to stop retrying and reject all
 * pending commands. Defaults to exponential backoff that gives up
 * after 5 retries.
 * pending commands. By default the driver retries forever with a
 * capped backoff (retries * 200ms, max 5s), since giving up leaves
 * the client permanently closed. Even if a custom strategy gives up,
 * the next command issued through the driver reconnects the client.
 *
 * @default built-in exponential backoff, max 5 retries
 * @default built-in capped backoff (retries * 200ms, max 5s), never gives up
 */
 reconnectStrategy?: (retries: number) => number | Error
 }
Expand Down

34 changes: 34 additions & 0 deletions
tests/unit/cache/drivers/RedisDriverTest.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -81,6 +81,40 @@ export class RedisDriverTest {
 assert.deepEqual(driver.client, { hello: 'world' })
 }

 @Test()
 public async shouldResurrectAClosedClientOnTheNextCommand({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('resurrect', 'alive')

 cache.driver.client.destroy()

 assert.isFalse(cache.driver.client.isOpen)

 const value = await cache.get('resurrect')

 assert.equal(value, 'alive')
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldShareASingleReconnectAttemptBetweenConcurrentCommands({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('concurrent', 'ok')

 cache.driver.client.destroy()

 const values = await Promise.all([cache.get('concurrent'), cache.get('concurrent'), cache.get('concurrent')])

 assert.deepEqual(values, ['ok', 'ok', 'ok'])
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldBeAbleToSetValueToTheCache({ assert }: Context) {
 const cache = Cache.store('redis')
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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feat: implement auto reconnect#11

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 Merged

jlenon7
merged 1 commit into

from

Aug 10, 2026
 Merged


feat: implement auto reconnect
#11
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4 changes: 2 additions & 2 deletions
package-lock.json

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2 changes: 1 addition & 1 deletion
package.json

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
{
 "name": "@athenna/cache",
 "version": "5.10.0",
 "version": "5.11.0",
 "description": "The cache handler for Athenna Framework.",
 "license": "MIT",
 "author": "João Lenon <lenon@athenna.io>",
Expand Down

82 changes: 75 additions & 7 deletions
src/cache/drivers/RedisDriver.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -56,6 +56,26 @@ export class RedisDriver extends Driver<RedisClientType> {
 */
 public database: number

 /**
 * In-flight resurrection attempt, shared so concurrent commands
 * don't race multiple connect() calls against a closed client.
 */
 private reconnectPromise: Promise<void> = null

 /**
 * Log without ever throwing: driver logs fire from node-redis event
 * listeners and reconnect callbacks, where an exception (e.g. Logger
 * service not bound in the container) would crash the process over a
 * cache connection blip.
 */
 private log(level: 'success' | 'warn' | 'error', message: string) {
 try {
 Log.channelOrVanilla('application')[level](message)
 } catch {
 /* logging must never take the process down */
 }
 }

 public constructor(
 store: string,
 client: any = null,
Expand DownExpand Up@@ -109,13 +129,21 @@ export class RedisDriver extends Driver<RedisClientType> {
 const config = Config.get(`cache.stores.${this.store}`)
 const { createClient } = this.getRedis()

 /**
 * Never stop retrying: returning an Error here makes node-redis close
 * the client permanently, so a Redis restart longer than the retry
 * window would leave every future command throwing "The client is
 * closed" until the process restarts.
 */
 const defaultReconnectStrategy = (retries: number) => {
 if (retries >= 5) {
 return new Error(
 `Cache store "${this.store}": max reconnect retries reached`
 if (retries > 0 && retries % 10 === 0) {
 this.log(
 'warn',
 `Cache store ({yellow} ${this.store}) still reconnecting after ${retries} retries`
 )
 }
 return Math.min(retries * 200, 2000)

 return Math.min(retries * 200, 5000)
 }

 this.client = createClient({
Expand All@@ -129,7 +157,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 // Required: without this listener node-redis emits 'error' events as
 // unhandled rejections whenever the connection drops after initial connect.
 this.client.on('error', err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `({red} Error) on ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -138,13 +167,15 @@ export class RedisDriver extends Driver<RedisClientType> {
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 Log.channelOrVanilla('application').success(
 this.log(
 'success',
 `Successfully connected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .catch(err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `Failed to connect to ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -157,6 +188,35 @@ export class RedisDriver extends Driver<RedisClientType> {
 }
 }

 /**
 * Reconnect a client that node-redis has permanently closed — a custom
 * reconnect strategy that gave up, or a connection that never came up at
 * boot. Without this, every command on that client throws "The client is
 * closed" until the process restarts; with it, the next command heals the
 * connection instead.
 */
 private async ensureConnection() {
 if (!this.client || this.client.isOpen) {
 return
 }

 if (!this.reconnectPromise) {
 this.reconnectPromise = this.client
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 this.log(
 'success',
 `Reconnected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .finally(() => (this.reconnectPromise = null))
 }

 await this.reconnectPromise
 }

 /**
 * Close the connection with the client in this instance.
 */
Expand All@@ -183,6 +243,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 let cursor = '0'

 do {
Expand All@@ -207,6 +269,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const value = await this.client.get(this.getCacheKey(key))

 if (Is.Null(value) || Is.Undefined(value)) {
Expand DownExpand Up@@ -237,6 +301,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const driverOptions: any = {}

 options = Options.create(options, {
Expand DownExpand Up@@ -277,6 +343,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 await this.client.del(this.getCacheKey(key))
 }
}

8 changes: 5 additions & 3 deletions
src/types/StoreOptions.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -87,10 +87,12 @@ export type StoreOptions = {
 * Define a custom reconnect strategy for the Redis connection.
 * Receives the number of retries so far. Return a number (ms delay
 * before next retry) or an Error to stop retrying and reject all
 * pending commands. Defaults to exponential backoff that gives up
 * after 5 retries.
 * pending commands. By default the driver retries forever with a
 * capped backoff (retries * 200ms, max 5s), since giving up leaves
 * the client permanently closed. Even if a custom strategy gives up,
 * the next command issued through the driver reconnects the client.
 *
 * @default built-in exponential backoff, max 5 retries
 * @default built-in capped backoff (retries * 200ms, max 5s), never gives up
 */
 reconnectStrategy?: (retries: number) => number | Error
 }
Expand Down

34 changes: 34 additions & 0 deletions
tests/unit/cache/drivers/RedisDriverTest.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -81,6 +81,40 @@ export class RedisDriverTest {
 assert.deepEqual(driver.client, { hello: 'world' })
 }

 @Test()
 public async shouldResurrectAClosedClientOnTheNextCommand({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('resurrect', 'alive')

 cache.driver.client.destroy()

 assert.isFalse(cache.driver.client.isOpen)

 const value = await cache.get('resurrect')

 assert.equal(value, 'alive')
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldShareASingleReconnectAttemptBetweenConcurrentCommands({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('concurrent', 'ok')

 cache.driver.client.destroy()

 const values = await Promise.all([cache.get('concurrent'), cache.get('concurrent'), cache.get('concurrent')])

 assert.deepEqual(values, ['ok', 'ok', 'ok'])
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldBeAbleToSetValueToTheCache({ assert }: Context) {
 const cache = Cache.store('redis')
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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jlenon7
merged 1 commit into

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Aug 10, 2026
 Merged


feat: implement auto reconnect
#11
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4 changes: 2 additions & 2 deletions
package-lock.json

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2 changes: 1 addition & 1 deletion
package.json

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Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
{
 "name": "@athenna/cache",
 "version": "5.10.0",
 "version": "5.11.0",
 "description": "The cache handler for Athenna Framework.",
 "license": "MIT",
 "author": "João Lenon <lenon@athenna.io>",
Expand Down

82 changes: 75 additions & 7 deletions
src/cache/drivers/RedisDriver.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -56,6 +56,26 @@ export class RedisDriver extends Driver<RedisClientType> {
 */
 public database: number

 /**
 * In-flight resurrection attempt, shared so concurrent commands
 * don't race multiple connect() calls against a closed client.
 */
 private reconnectPromise: Promise<void> = null

 /**
 * Log without ever throwing: driver logs fire from node-redis event
 * listeners and reconnect callbacks, where an exception (e.g. Logger
 * service not bound in the container) would crash the process over a
 * cache connection blip.
 */
 private log(level: 'success' | 'warn' | 'error', message: string) {
 try {
 Log.channelOrVanilla('application')[level](message)
 } catch {
 /* logging must never take the process down */
 }
 }

 public constructor(
 store: string,
 client: any = null,
Expand DownExpand Up@@ -109,13 +129,21 @@ export class RedisDriver extends Driver<RedisClientType> {
 const config = Config.get(`cache.stores.${this.store}`)
 const { createClient } = this.getRedis()

 /**
 * Never stop retrying: returning an Error here makes node-redis close
 * the client permanently, so a Redis restart longer than the retry
 * window would leave every future command throwing "The client is
 * closed" until the process restarts.
 */
 const defaultReconnectStrategy = (retries: number) => {
 if (retries >= 5) {
 return new Error(
 `Cache store "${this.store}": max reconnect retries reached`
 if (retries > 0 && retries % 10 === 0) {
 this.log(
 'warn',
 `Cache store ({yellow} ${this.store}) still reconnecting after ${retries} retries`
 )
 }
 return Math.min(retries * 200, 2000)

 return Math.min(retries * 200, 5000)
 }

 this.client = createClient({
Expand All@@ -129,7 +157,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 // Required: without this listener node-redis emits 'error' events as
 // unhandled rejections whenever the connection drops after initial connect.
 this.client.on('error', err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `({red} Error) on ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -138,13 +167,15 @@ export class RedisDriver extends Driver<RedisClientType> {
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 Log.channelOrVanilla('application').success(
 this.log(
 'success',
 `Successfully connected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .catch(err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `Failed to connect to ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -157,6 +188,35 @@ export class RedisDriver extends Driver<RedisClientType> {
 }
 }

 /**
 * Reconnect a client that node-redis has permanently closed — a custom
 * reconnect strategy that gave up, or a connection that never came up at
 * boot. Without this, every command on that client throws "The client is
 * closed" until the process restarts; with it, the next command heals the
 * connection instead.
 */
 private async ensureConnection() {
 if (!this.client || this.client.isOpen) {
 return
 }

 if (!this.reconnectPromise) {
 this.reconnectPromise = this.client
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 this.log(
 'success',
 `Reconnected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .finally(() => (this.reconnectPromise = null))
 }

 await this.reconnectPromise
 }

 /**
 * Close the connection with the client in this instance.
 */
Expand All@@ -183,6 +243,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 let cursor = '0'

 do {
Expand All@@ -207,6 +269,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const value = await this.client.get(this.getCacheKey(key))

 if (Is.Null(value) || Is.Undefined(value)) {
Expand DownExpand Up@@ -237,6 +301,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const driverOptions: any = {}

 options = Options.create(options, {
Expand DownExpand Up@@ -277,6 +343,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 await this.client.del(this.getCacheKey(key))
 }
}

8 changes: 5 additions & 3 deletions
src/types/StoreOptions.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -87,10 +87,12 @@ export type StoreOptions = {
 * Define a custom reconnect strategy for the Redis connection.
 * Receives the number of retries so far. Return a number (ms delay
 * before next retry) or an Error to stop retrying and reject all
 * pending commands. Defaults to exponential backoff that gives up
 * after 5 retries.
 * pending commands. By default the driver retries forever with a
 * capped backoff (retries * 200ms, max 5s), since giving up leaves
 * the client permanently closed. Even if a custom strategy gives up,
 * the next command issued through the driver reconnects the client.
 *
 * @default built-in exponential backoff, max 5 retries
 * @default built-in capped backoff (retries * 200ms, max 5s), never gives up
 */
 reconnectStrategy?: (retries: number) => number | Error
 }
Expand Down

34 changes: 34 additions & 0 deletions
tests/unit/cache/drivers/RedisDriverTest.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -81,6 +81,40 @@ export class RedisDriverTest {
 assert.deepEqual(driver.client, { hello: 'world' })
 }

 @Test()
 public async shouldResurrectAClosedClientOnTheNextCommand({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('resurrect', 'alive')

 cache.driver.client.destroy()

 assert.isFalse(cache.driver.client.isOpen)

 const value = await cache.get('resurrect')

 assert.equal(value, 'alive')
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldShareASingleReconnectAttemptBetweenConcurrentCommands({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('concurrent', 'ok')

 cache.driver.client.destroy()

 const values = await Promise.all([cache.get('concurrent'), cache.get('concurrent'), cache.get('concurrent')])

 assert.deepEqual(values, ['ok', 'ok', 'ok'])
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldBeAbleToSetValueToTheCache({ assert }: Context) {
 const cache = Cache.store('redis')
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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feat: implement auto reconnect#11

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 Merged

jlenon7
merged 1 commit into

from

Aug 10, 2026
 Merged


feat: implement auto reconnect
#11
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4 changes: 2 additions & 2 deletions
package-lock.json

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2 changes: 1 addition & 1 deletion
package.json

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
{
 "name": "@athenna/cache",
 "version": "5.10.0",
 "version": "5.11.0",
 "description": "The cache handler for Athenna Framework.",
 "license": "MIT",
 "author": "João Lenon <lenon@athenna.io>",
Expand Down

82 changes: 75 additions & 7 deletions
src/cache/drivers/RedisDriver.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -56,6 +56,26 @@ export class RedisDriver extends Driver<RedisClientType> {
 */
 public database: number

 /**
 * In-flight resurrection attempt, shared so concurrent commands
 * don't race multiple connect() calls against a closed client.
 */
 private reconnectPromise: Promise<void> = null

 /**
 * Log without ever throwing: driver logs fire from node-redis event
 * listeners and reconnect callbacks, where an exception (e.g. Logger
 * service not bound in the container) would crash the process over a
 * cache connection blip.
 */
 private log(level: 'success' | 'warn' | 'error', message: string) {
 try {
 Log.channelOrVanilla('application')[level](message)
 } catch {
 /* logging must never take the process down */
 }
 }

 public constructor(
 store: string,
 client: any = null,
Expand DownExpand Up@@ -109,13 +129,21 @@ export class RedisDriver extends Driver<RedisClientType> {
 const config = Config.get(`cache.stores.${this.store}`)
 const { createClient } = this.getRedis()

 /**
 * Never stop retrying: returning an Error here makes node-redis close
 * the client permanently, so a Redis restart longer than the retry
 * window would leave every future command throwing "The client is
 * closed" until the process restarts.
 */
 const defaultReconnectStrategy = (retries: number) => {
 if (retries >= 5) {
 return new Error(
 `Cache store "${this.store}": max reconnect retries reached`
 if (retries > 0 && retries % 10 === 0) {
 this.log(
 'warn',
 `Cache store ({yellow} ${this.store}) still reconnecting after ${retries} retries`
 )
 }
 return Math.min(retries * 200, 2000)

 return Math.min(retries * 200, 5000)
 }

 this.client = createClient({
Expand All@@ -129,7 +157,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 // Required: without this listener node-redis emits 'error' events as
 // unhandled rejections whenever the connection drops after initial connect.
 this.client.on('error', err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `({red} Error) on ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -138,13 +167,15 @@ export class RedisDriver extends Driver<RedisClientType> {
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 Log.channelOrVanilla('application').success(
 this.log(
 'success',
 `Successfully connected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .catch(err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `Failed to connect to ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -157,6 +188,35 @@ export class RedisDriver extends Driver<RedisClientType> {
 }
 }

 /**
 * Reconnect a client that node-redis has permanently closed — a custom
 * reconnect strategy that gave up, or a connection that never came up at
 * boot. Without this, every command on that client throws "The client is
 * closed" until the process restarts; with it, the next command heals the
 * connection instead.
 */
 private async ensureConnection() {
 if (!this.client || this.client.isOpen) {
 return
 }

 if (!this.reconnectPromise) {
 this.reconnectPromise = this.client
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 this.log(
 'success',
 `Reconnected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .finally(() => (this.reconnectPromise = null))
 }

 await this.reconnectPromise
 }

 /**
 * Close the connection with the client in this instance.
 */
Expand All@@ -183,6 +243,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 let cursor = '0'

 do {
Expand All@@ -207,6 +269,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const value = await this.client.get(this.getCacheKey(key))

 if (Is.Null(value) || Is.Undefined(value)) {
Expand DownExpand Up@@ -237,6 +301,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const driverOptions: any = {}

 options = Options.create(options, {
Expand DownExpand Up@@ -277,6 +343,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 await this.client.del(this.getCacheKey(key))
 }
}

8 changes: 5 additions & 3 deletions
src/types/StoreOptions.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -87,10 +87,12 @@ export type StoreOptions = {
 * Define a custom reconnect strategy for the Redis connection.
 * Receives the number of retries so far. Return a number (ms delay
 * before next retry) or an Error to stop retrying and reject all
 * pending commands. Defaults to exponential backoff that gives up
 * after 5 retries.
 * pending commands. By default the driver retries forever with a
 * capped backoff (retries * 200ms, max 5s), since giving up leaves
 * the client permanently closed. Even if a custom strategy gives up,
 * the next command issued through the driver reconnects the client.
 *
 * @default built-in exponential backoff, max 5 retries
 * @default built-in capped backoff (retries * 200ms, max 5s), never gives up
 */
 reconnectStrategy?: (retries: number) => number | Error
 }
Expand Down

34 changes: 34 additions & 0 deletions
tests/unit/cache/drivers/RedisDriverTest.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -81,6 +81,40 @@ export class RedisDriverTest {
 assert.deepEqual(driver.client, { hello: 'world' })
 }

 @Test()
 public async shouldResurrectAClosedClientOnTheNextCommand({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('resurrect', 'alive')

 cache.driver.client.destroy()

 assert.isFalse(cache.driver.client.isOpen)

 const value = await cache.get('resurrect')

 assert.equal(value, 'alive')
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldShareASingleReconnectAttemptBetweenConcurrentCommands({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('concurrent', 'ok')

 cache.driver.client.destroy()

 const values = await Promise.all([cache.get('concurrent'), cache.get('concurrent'), cache.get('concurrent')])

 assert.deepEqual(values, ['ok', 'ok', 'ok'])
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldBeAbleToSetValueToTheCache({ assert }: Context) {
 const cache = Cache.store('redis')
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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feat: implement auto reconnect#11

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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
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to your account

 Merged

jlenon7
merged 1 commit into

from

Aug 10, 2026
 Merged


feat: implement auto reconnect
#11
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4 changes: 2 additions & 2 deletions
package-lock.json

View file


Open in desktop


Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.


2 changes: 1 addition & 1 deletion
package.json

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
{
 "name": "@athenna/cache",
 "version": "5.10.0",
 "version": "5.11.0",
 "description": "The cache handler for Athenna Framework.",
 "license": "MIT",
 "author": "João Lenon <lenon@athenna.io>",
Expand Down

82 changes: 75 additions & 7 deletions
src/cache/drivers/RedisDriver.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -56,6 +56,26 @@ export class RedisDriver extends Driver<RedisClientType> {
 */
 public database: number

 /**
 * In-flight resurrection attempt, shared so concurrent commands
 * don't race multiple connect() calls against a closed client.
 */
 private reconnectPromise: Promise<void> = null

 /**
 * Log without ever throwing: driver logs fire from node-redis event
 * listeners and reconnect callbacks, where an exception (e.g. Logger
 * service not bound in the container) would crash the process over a
 * cache connection blip.
 */
 private log(level: 'success' | 'warn' | 'error', message: string) {
 try {
 Log.channelOrVanilla('application')[level](message)
 } catch {
 /* logging must never take the process down */
 }
 }

 public constructor(
 store: string,
 client: any = null,
Expand DownExpand Up@@ -109,13 +129,21 @@ export class RedisDriver extends Driver<RedisClientType> {
 const config = Config.get(`cache.stores.${this.store}`)
 const { createClient } = this.getRedis()

 /**
 * Never stop retrying: returning an Error here makes node-redis close
 * the client permanently, so a Redis restart longer than the retry
 * window would leave every future command throwing "The client is
 * closed" until the process restarts.
 */
 const defaultReconnectStrategy = (retries: number) => {
 if (retries >= 5) {
 return new Error(
 `Cache store "${this.store}": max reconnect retries reached`
 if (retries > 0 && retries % 10 === 0) {
 this.log(
 'warn',
 `Cache store ({yellow} ${this.store}) still reconnecting after ${retries} retries`
 )
 }
 return Math.min(retries * 200, 2000)

 return Math.min(retries * 200, 5000)
 }

 this.client = createClient({
Expand All@@ -129,7 +157,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 // Required: without this listener node-redis emits 'error' events as
 // unhandled rejections whenever the connection drops after initial connect.
 this.client.on('error', err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `({red} Error) on ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -138,13 +167,15 @@ export class RedisDriver extends Driver<RedisClientType> {
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 Log.channelOrVanilla('application').success(
 this.log(
 'success',
 `Successfully connected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .catch(err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `Failed to connect to ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -157,6 +188,35 @@ export class RedisDriver extends Driver<RedisClientType> {
 }
 }

 /**
 * Reconnect a client that node-redis has permanently closed — a custom
 * reconnect strategy that gave up, or a connection that never came up at
 * boot. Without this, every command on that client throws "The client is
 * closed" until the process restarts; with it, the next command heals the
 * connection instead.
 */
 private async ensureConnection() {
 if (!this.client || this.client.isOpen) {
 return
 }

 if (!this.reconnectPromise) {
 this.reconnectPromise = this.client
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 this.log(
 'success',
 `Reconnected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .finally(() => (this.reconnectPromise = null))
 }

 await this.reconnectPromise
 }

 /**
 * Close the connection with the client in this instance.
 */
Expand All@@ -183,6 +243,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 let cursor = '0'

 do {
Expand All@@ -207,6 +269,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const value = await this.client.get(this.getCacheKey(key))

 if (Is.Null(value) || Is.Undefined(value)) {
Expand DownExpand Up@@ -237,6 +301,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const driverOptions: any = {}

 options = Options.create(options, {
Expand DownExpand Up@@ -277,6 +343,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 await this.client.del(this.getCacheKey(key))
 }
}

8 changes: 5 additions & 3 deletions
src/types/StoreOptions.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -87,10 +87,12 @@ export type StoreOptions = {
 * Define a custom reconnect strategy for the Redis connection.
 * Receives the number of retries so far. Return a number (ms delay
 * before next retry) or an Error to stop retrying and reject all
 * pending commands. Defaults to exponential backoff that gives up
 * after 5 retries.
 * pending commands. By default the driver retries forever with a
 * capped backoff (retries * 200ms, max 5s), since giving up leaves
 * the client permanently closed. Even if a custom strategy gives up,
 * the next command issued through the driver reconnects the client.
 *
 * @default built-in exponential backoff, max 5 retries
 * @default built-in capped backoff (retries * 200ms, max 5s), never gives up
 */
 reconnectStrategy?: (retries: number) => number | Error
 }
Expand Down

34 changes: 34 additions & 0 deletions
tests/unit/cache/drivers/RedisDriverTest.ts

View file


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Original file line numberDiff line numberDiff line change
Expand Up@@ -81,6 +81,40 @@ export class RedisDriverTest {
 assert.deepEqual(driver.client, { hello: 'world' })
 }

 @Test()
 public async shouldResurrectAClosedClientOnTheNextCommand({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('resurrect', 'alive')

 cache.driver.client.destroy()

 assert.isFalse(cache.driver.client.isOpen)

 const value = await cache.get('resurrect')

 assert.equal(value, 'alive')
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldShareASingleReconnectAttemptBetweenConcurrentCommands({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('concurrent', 'ok')

 cache.driver.client.destroy()

 const values = await Promise.all([cache.get('concurrent'), cache.get('concurrent'), cache.get('concurrent')])

 assert.deepEqual(values, ['ok', 'ok', 'ok'])
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldBeAbleToSetValueToTheCache({ assert }: Context) {
 const cache = Cache.store('redis')
Expand Down
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// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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feat: implement auto reconnect#11

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jlenon7
merged 1 commit into

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Aug 10, 2026
 Merged


feat: implement auto reconnect
#11
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4 changes: 2 additions & 2 deletions
package-lock.json

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2 changes: 1 addition & 1 deletion
package.json

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Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
{
 "name": "@athenna/cache",
 "version": "5.10.0",
 "version": "5.11.0",
 "description": "The cache handler for Athenna Framework.",
 "license": "MIT",
 "author": "João Lenon <lenon@athenna.io>",
Expand Down

82 changes: 75 additions & 7 deletions
src/cache/drivers/RedisDriver.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -56,6 +56,26 @@ export class RedisDriver extends Driver<RedisClientType> {
 */
 public database: number

 /**
 * In-flight resurrection attempt, shared so concurrent commands
 * don't race multiple connect() calls against a closed client.
 */
 private reconnectPromise: Promise<void> = null

 /**
 * Log without ever throwing: driver logs fire from node-redis event
 * listeners and reconnect callbacks, where an exception (e.g. Logger
 * service not bound in the container) would crash the process over a
 * cache connection blip.
 */
 private log(level: 'success' | 'warn' | 'error', message: string) {
 try {
 Log.channelOrVanilla('application')[level](message)
 } catch {
 /* logging must never take the process down */
 }
 }

 public constructor(
 store: string,
 client: any = null,
Expand DownExpand Up@@ -109,13 +129,21 @@ export class RedisDriver extends Driver<RedisClientType> {
 const config = Config.get(`cache.stores.${this.store}`)
 const { createClient } = this.getRedis()

 /**
 * Never stop retrying: returning an Error here makes node-redis close
 * the client permanently, so a Redis restart longer than the retry
 * window would leave every future command throwing "The client is
 * closed" until the process restarts.
 */
 const defaultReconnectStrategy = (retries: number) => {
 if (retries >= 5) {
 return new Error(
 `Cache store "${this.store}": max reconnect retries reached`
 if (retries > 0 && retries % 10 === 0) {
 this.log(
 'warn',
 `Cache store ({yellow} ${this.store}) still reconnecting after ${retries} retries`
 )
 }
 return Math.min(retries * 200, 2000)

 return Math.min(retries * 200, 5000)
 }

 this.client = createClient({
Expand All@@ -129,7 +157,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 // Required: without this listener node-redis emits 'error' events as
 // unhandled rejections whenever the connection drops after initial connect.
 this.client.on('error', err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `({red} Error) on ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -138,13 +167,15 @@ export class RedisDriver extends Driver<RedisClientType> {
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 Log.channelOrVanilla('application').success(
 this.log(
 'success',
 `Successfully connected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .catch(err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `Failed to connect to ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -157,6 +188,35 @@ export class RedisDriver extends Driver<RedisClientType> {
 }
 }

 /**
 * Reconnect a client that node-redis has permanently closed — a custom
 * reconnect strategy that gave up, or a connection that never came up at
 * boot. Without this, every command on that client throws "The client is
 * closed" until the process restarts; with it, the next command heals the
 * connection instead.
 */
 private async ensureConnection() {
 if (!this.client || this.client.isOpen) {
 return
 }

 if (!this.reconnectPromise) {
 this.reconnectPromise = this.client
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 this.log(
 'success',
 `Reconnected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .finally(() => (this.reconnectPromise = null))
 }

 await this.reconnectPromise
 }

 /**
 * Close the connection with the client in this instance.
 */
Expand All@@ -183,6 +243,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 let cursor = '0'

 do {
Expand All@@ -207,6 +269,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const value = await this.client.get(this.getCacheKey(key))

 if (Is.Null(value) || Is.Undefined(value)) {
Expand DownExpand Up@@ -237,6 +301,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const driverOptions: any = {}

 options = Options.create(options, {
Expand DownExpand Up@@ -277,6 +343,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 await this.client.del(this.getCacheKey(key))
 }
}

8 changes: 5 additions & 3 deletions
src/types/StoreOptions.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -87,10 +87,12 @@ export type StoreOptions = {
 * Define a custom reconnect strategy for the Redis connection.
 * Receives the number of retries so far. Return a number (ms delay
 * before next retry) or an Error to stop retrying and reject all
 * pending commands. Defaults to exponential backoff that gives up
 * after 5 retries.
 * pending commands. By default the driver retries forever with a
 * capped backoff (retries * 200ms, max 5s), since giving up leaves
 * the client permanently closed. Even if a custom strategy gives up,
 * the next command issued through the driver reconnects the client.
 *
 * @default built-in exponential backoff, max 5 retries
 * @default built-in capped backoff (retries * 200ms, max 5s), never gives up
 */
 reconnectStrategy?: (retries: number) => number | Error
 }
Expand Down

34 changes: 34 additions & 0 deletions
tests/unit/cache/drivers/RedisDriverTest.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -81,6 +81,40 @@ export class RedisDriverTest {
 assert.deepEqual(driver.client, { hello: 'world' })
 }

 @Test()
 public async shouldResurrectAClosedClientOnTheNextCommand({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('resurrect', 'alive')

 cache.driver.client.destroy()

 assert.isFalse(cache.driver.client.isOpen)

 const value = await cache.get('resurrect')

 assert.equal(value, 'alive')
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldShareASingleReconnectAttemptBetweenConcurrentCommands({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('concurrent', 'ok')

 cache.driver.client.destroy()

 const values = await Promise.all([cache.get('concurrent'), cache.get('concurrent'), cache.get('concurrent')])

 assert.deepEqual(values, ['ok', 'ok', 'ok'])
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldBeAbleToSetValueToTheCache({ assert }: Context) {
 const cache = Cache.store('redis')
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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feat: implement auto reconnect#11

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 Merged

jlenon7
merged 1 commit into

from

Aug 10, 2026
 Merged


feat: implement auto reconnect
#11
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4 changes: 2 additions & 2 deletions
package-lock.json

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2 changes: 1 addition & 1 deletion
package.json

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Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
{
 "name": "@athenna/cache",
 "version": "5.10.0",
 "version": "5.11.0",
 "description": "The cache handler for Athenna Framework.",
 "license": "MIT",
 "author": "João Lenon <lenon@athenna.io>",
Expand Down

82 changes: 75 additions & 7 deletions
src/cache/drivers/RedisDriver.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -56,6 +56,26 @@ export class RedisDriver extends Driver<RedisClientType> {
 */
 public database: number

 /**
 * In-flight resurrection attempt, shared so concurrent commands
 * don't race multiple connect() calls against a closed client.
 */
 private reconnectPromise: Promise<void> = null

 /**
 * Log without ever throwing: driver logs fire from node-redis event
 * listeners and reconnect callbacks, where an exception (e.g. Logger
 * service not bound in the container) would crash the process over a
 * cache connection blip.
 */
 private log(level: 'success' | 'warn' | 'error', message: string) {
 try {
 Log.channelOrVanilla('application')[level](message)
 } catch {
 /* logging must never take the process down */
 }
 }

 public constructor(
 store: string,
 client: any = null,
Expand DownExpand Up@@ -109,13 +129,21 @@ export class RedisDriver extends Driver<RedisClientType> {
 const config = Config.get(`cache.stores.${this.store}`)
 const { createClient } = this.getRedis()

 /**
 * Never stop retrying: returning an Error here makes node-redis close
 * the client permanently, so a Redis restart longer than the retry
 * window would leave every future command throwing "The client is
 * closed" until the process restarts.
 */
 const defaultReconnectStrategy = (retries: number) => {
 if (retries >= 5) {
 return new Error(
 `Cache store "${this.store}": max reconnect retries reached`
 if (retries > 0 && retries % 10 === 0) {
 this.log(
 'warn',
 `Cache store ({yellow} ${this.store}) still reconnecting after ${retries} retries`
 )
 }
 return Math.min(retries * 200, 2000)

 return Math.min(retries * 200, 5000)
 }

 this.client = createClient({
Expand All@@ -129,7 +157,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 // Required: without this listener node-redis emits 'error' events as
 // unhandled rejections whenever the connection drops after initial connect.
 this.client.on('error', err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `({red} Error) on ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -138,13 +167,15 @@ export class RedisDriver extends Driver<RedisClientType> {
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 Log.channelOrVanilla('application').success(
 this.log(
 'success',
 `Successfully connected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .catch(err => {
 Log.channelOrVanilla('application').error(
 this.log(
 'error',
 `Failed to connect to ({yellow} ${this.store}) cache store: ${err.message}`
 )
 })
Expand All@@ -157,6 +188,35 @@ export class RedisDriver extends Driver<RedisClientType> {
 }
 }

 /**
 * Reconnect a client that node-redis has permanently closed — a custom
 * reconnect strategy that gave up, or a connection that never came up at
 * boot. Without this, every command on that client throws "The client is
 * closed" until the process restarts; with it, the next command heals the
 * connection instead.
 */
 private async ensureConnection() {
 if (!this.client || this.client.isOpen) {
 return
 }

 if (!this.reconnectPromise) {
 this.reconnectPromise = this.client
 .connect()
 .then(() => {
 if (Config.is('rc.bootLogs', true)) {
 this.log(
 'success',
 `Reconnected to ({yellow} ${this.store}) cache store`
 )
 }
 })
 .finally(() => (this.reconnectPromise = null))
 }

 await this.reconnectPromise
 }

 /**
 * Close the connection with the client in this instance.
 */
Expand All@@ -183,6 +243,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 let cursor = '0'

 do {
Expand All@@ -207,6 +269,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const value = await this.client.get(this.getCacheKey(key))

 if (Is.Null(value) || Is.Undefined(value)) {
Expand DownExpand Up@@ -237,6 +301,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 const driverOptions: any = {}

 options = Options.create(options, {
Expand DownExpand Up@@ -277,6 +343,8 @@ export class RedisDriver extends Driver<RedisClientType> {
 return
 }

 await this.ensureConnection()

 await this.client.del(this.getCacheKey(key))
 }
}

8 changes: 5 additions & 3 deletions
src/types/StoreOptions.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -87,10 +87,12 @@ export type StoreOptions = {
 * Define a custom reconnect strategy for the Redis connection.
 * Receives the number of retries so far. Return a number (ms delay
 * before next retry) or an Error to stop retrying and reject all
 * pending commands. Defaults to exponential backoff that gives up
 * after 5 retries.
 * pending commands. By default the driver retries forever with a
 * capped backoff (retries * 200ms, max 5s), since giving up leaves
 * the client permanently closed. Even if a custom strategy gives up,
 * the next command issued through the driver reconnects the client.
 *
 * @default built-in exponential backoff, max 5 retries
 * @default built-in capped backoff (retries * 200ms, max 5s), never gives up
 */
 reconnectStrategy?: (retries: number) => number | Error
 }
Expand Down

34 changes: 34 additions & 0 deletions
tests/unit/cache/drivers/RedisDriverTest.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -81,6 +81,40 @@ export class RedisDriverTest {
 assert.deepEqual(driver.client, { hello: 'world' })
 }

 @Test()
 public async shouldResurrectAClosedClientOnTheNextCommand({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('resurrect', 'alive')

 cache.driver.client.destroy()

 assert.isFalse(cache.driver.client.isOpen)

 const value = await cache.get('resurrect')

 assert.equal(value, 'alive')
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldShareASingleReconnectAttemptBetweenConcurrentCommands({ assert }: Context) {
 const cache = Cache.store('redis')

 await Sleep.for(100).milliseconds().wait()

 await cache.set('concurrent', 'ok')

 cache.driver.client.destroy()

 const values = await Promise.all([cache.get('concurrent'), cache.get('concurrent'), cache.get('concurrent')])

 assert.deepEqual(values, ['ok', 'ok', 'ok'])
 assert.isTrue(cache.driver.client.isOpen)
 }

 @Test()
 public async shouldBeAbleToSetValueToTheCache({ assert }: Context) {
 const cache = Cache.store('redis')
Expand Down
Loading