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CDK lambda development template

This is a CDK template to develop lambda functions in your isolated environment

Why we need this?

When you are building a lambda function using CDK in a team, your functions get overriden by other developers functions when they deploy. By having isolated CDK environment which imports external resources (e.g. DynamoDB, S3), we can safely develop our lambda functions. Once you confirmed that your function is working properly in your environment, you can copy your code to your base CDK project.

How to use

  1. Set your development Stack info
new DevelopmentTemplateStack(app, `AppStack`, {
env: {
account: process.env.CDK_DEFAULT_ACCOUNT,
region: process.env.CDK_DEFAULT_REGION,
},
tags: {
app: "tag",
},
});
  1. Add your external resources & lambda function
export class DevelopmentTemplateStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);
// Reference your resouces
// See how to reference external resources https://docs.aws.amazon.com/cdk/v2/guide/resources.html
const s3Bucket = s3.Bucket.fromBucketArn(this, 'MyBucket', 'arn:aws:s3:::my-bucket-name');
// Set your lambda
cont yourLambda = new lambda_nodejs.NodejsFunction(this, "yourlambda", {
runtime: lambda.Runtime.NODEJS_18_X,
handler: "handler",
entry: path.join(`${__dirname}/../`, "functions", "yourlambda/index.ts"),
environment: {
BUCKET: props.s3Bucket.bucketName,
},
});
props.s3Bucket.grantReadWrite(yourLambda);
}
}
  1. Your lambda
  • This project uses pnpm workspace.
  • Add your function under functions (e.g. functions/yourlambda/index.ts)
  • you need to run pnpm i at the root of the project so that pnpm can recognize your function.
  • If you want add other dependencies, call pnpm init under functions/yourlambda then pnpm add {dependecies you want to add}
  1. Deploy
pnpm cdk:deploy

Tips

Accessing lambda layer

You can use submodules to access the lambda layer

git submodule add git@github.com:yourproject/main-cdk.git main-cdk

Then add the path in tsconfig.json

{
...
"paths": {
"/opt/nodejs/s3": ["main-cdk/functions/layers/awsservice/nodejs/s3"]
}
}

and when you update submodule

git submodule update --recursive --remote --merge

About

A CDK template to develop lambda functions in your isolated environment

Resources

Readme
Activity

Stars

3 stars

Watchers

1 watching

Forks

0 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n 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;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
Repository files navigation
CDK lambda development template
This is a CDK template to develop lambda functions in your isolated environment
Why we need this?
When you are building a lambda function using CDK in a team, your functions get overriden by other developers functions when they deploy. By having isolated CDK environment which imports external resources (e.g. DynamoDB, S3), we can safely develop our lambda functions. Once you confirmed that your function is working properly in your environment, you can copy your code to your base CDK project.
How to use
  1. Set your development Stack info
new DevelopmentTemplateStack(app, `AppStack`, {
env: {
account: process.env.CDK_DEFAULT_ACCOUNT,
region: process.env.CDK_DEFAULT_REGION,
},
tags: {
app: "tag",
},
});

  1. Add your external resources & lambda function
export class DevelopmentTemplateStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);
// Reference your resouces
// See how to reference external resources https://docs.aws.amazon.com/cdk/v2/guide/resources.html
const s3Bucket = s3.Bucket.fromBucketArn(this, 'MyBucket', 'arn:aws:s3:::my-bucket-name');
// Set your lambda
cont yourLambda = new lambda_nodejs.NodejsFunction(this, "yourlambda", {
runtime: lambda.Runtime.NODEJS_18_X,
handler: "handler",
entry: path.join(`${__dirname}/../`, "functions", "yourlambda/index.ts"),
environment: {
BUCKET: props.s3Bucket.bucketName,
},
});
props.s3Bucket.grantReadWrite(yourLambda);
}
}

  1. Your lambda
  • This project uses pnpm workspace.
  • Add your function under functions (e.g. functions/yourlambda/index.ts)
  • you need to run pnpm i at the root of the project so that pnpm can recognize your function.
  • If you want add other dependencies, call pnpm init under functions/yourlambda then pnpm add {dependecies you want to add}
  1. Deploy
pnpm cdk:deploy

Tips
Accessing lambda layer
You can use submodules to access the lambda layer
git submodule add git@github.com:yourproject/main-cdk.git main-cdk

Then add the path in tsconfig.json
{
...
"paths": {
"/opt/nodejs/s3": ["main-cdk/functions/layers/awsservice/nodejs/s3"]
}
}

and when you update submodule
git submodule update --recursive --remote --merge

About
A CDK template to develop lambda functions in your isolated environment
Resources
Readme
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

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

Skip to content
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CDK lambda development template
This is a CDK template to develop lambda functions in your isolated environment
Why we need this?
When you are building a lambda function using CDK in a team, your functions get overriden by other developers functions when they deploy. By having isolated CDK environment which imports external resources (e.g. DynamoDB, S3), we can safely develop our lambda functions. Once you confirmed that your function is working properly in your environment, you can copy your code to your base CDK project.
How to use
  1. Set your development Stack info
new DevelopmentTemplateStack(app, `AppStack`, {
env: {
account: process.env.CDK_DEFAULT_ACCOUNT,
region: process.env.CDK_DEFAULT_REGION,
},
tags: {
app: "tag",
},
});

  1. Add your external resources & lambda function
export class DevelopmentTemplateStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);
// Reference your resouces
// See how to reference external resources https://docs.aws.amazon.com/cdk/v2/guide/resources.html
const s3Bucket = s3.Bucket.fromBucketArn(this, 'MyBucket', 'arn:aws:s3:::my-bucket-name');
// Set your lambda
cont yourLambda = new lambda_nodejs.NodejsFunction(this, "yourlambda", {
runtime: lambda.Runtime.NODEJS_18_X,
handler: "handler",
entry: path.join(`${__dirname}/../`, "functions", "yourlambda/index.ts"),
environment: {
BUCKET: props.s3Bucket.bucketName,
},
});
props.s3Bucket.grantReadWrite(yourLambda);
}
}

  1. Your lambda
  • This project uses pnpm workspace.
  • Add your function under functions (e.g. functions/yourlambda/index.ts)
  • you need to run pnpm i at the root of the project so that pnpm can recognize your function.
  • If you want add other dependencies, call pnpm init under functions/yourlambda then pnpm add {dependecies you want to add}
  1. Deploy
pnpm cdk:deploy

Tips
Accessing lambda layer
You can use submodules to access the lambda layer
git submodule add git@github.com:yourproject/main-cdk.git main-cdk

Then add the path in tsconfig.json
{
...
"paths": {
"/opt/nodejs/s3": ["main-cdk/functions/layers/awsservice/nodejs/s3"]
}
}

and when you update submodule
git submodule update --recursive --remote --merge

About
A CDK template to develop lambda functions in your isolated environment
Resources
Readme
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

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

Skip to content
BranchesTags
Repository files navigation
CDK lambda development template
This is a CDK template to develop lambda functions in your isolated environment
Why we need this?
When you are building a lambda function using CDK in a team, your functions get overriden by other developers functions when they deploy. By having isolated CDK environment which imports external resources (e.g. DynamoDB, S3), we can safely develop our lambda functions. Once you confirmed that your function is working properly in your environment, you can copy your code to your base CDK project.
How to use
  1. Set your development Stack info
new DevelopmentTemplateStack(app, `AppStack`, {
env: {
account: process.env.CDK_DEFAULT_ACCOUNT,
region: process.env.CDK_DEFAULT_REGION,
},
tags: {
app: "tag",
},
});

  1. Add your external resources & lambda function
export class DevelopmentTemplateStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);
// Reference your resouces
// See how to reference external resources https://docs.aws.amazon.com/cdk/v2/guide/resources.html
const s3Bucket = s3.Bucket.fromBucketArn(this, 'MyBucket', 'arn:aws:s3:::my-bucket-name');
// Set your lambda
cont yourLambda = new lambda_nodejs.NodejsFunction(this, "yourlambda", {
runtime: lambda.Runtime.NODEJS_18_X,
handler: "handler",
entry: path.join(`${__dirname}/../`, "functions", "yourlambda/index.ts"),
environment: {
BUCKET: props.s3Bucket.bucketName,
},
});
props.s3Bucket.grantReadWrite(yourLambda);
}
}

  1. Your lambda
  • This project uses pnpm workspace.
  • Add your function under functions (e.g. functions/yourlambda/index.ts)
  • you need to run pnpm i at the root of the project so that pnpm can recognize your function.
  • If you want add other dependencies, call pnpm init under functions/yourlambda then pnpm add {dependecies you want to add}
  1. Deploy
pnpm cdk:deploy

Tips
Accessing lambda layer
You can use submodules to access the lambda layer
git submodule add git@github.com:yourproject/main-cdk.git main-cdk

Then add the path in tsconfig.json
{
...
"paths": {
"/opt/nodejs/s3": ["main-cdk/functions/layers/awsservice/nodejs/s3"]
}
}

and when you update submodule
git submodule update --recursive --remote --merge

About
A CDK template to develop lambda functions in your isolated environment
Resources
Readme
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

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

Skip to content
BranchesTags
Repository files navigation
CDK lambda development template
This is a CDK template to develop lambda functions in your isolated environment
Why we need this?
When you are building a lambda function using CDK in a team, your functions get overriden by other developers functions when they deploy. By having isolated CDK environment which imports external resources (e.g. DynamoDB, S3), we can safely develop our lambda functions. Once you confirmed that your function is working properly in your environment, you can copy your code to your base CDK project.
How to use
  1. Set your development Stack info
new DevelopmentTemplateStack(app, `AppStack`, {
env: {
account: process.env.CDK_DEFAULT_ACCOUNT,
region: process.env.CDK_DEFAULT_REGION,
},
tags: {
app: "tag",
},
});

  1. Add your external resources & lambda function
export class DevelopmentTemplateStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);
// Reference your resouces
// See how to reference external resources https://docs.aws.amazon.com/cdk/v2/guide/resources.html
const s3Bucket = s3.Bucket.fromBucketArn(this, 'MyBucket', 'arn:aws:s3:::my-bucket-name');
// Set your lambda
cont yourLambda = new lambda_nodejs.NodejsFunction(this, "yourlambda", {
runtime: lambda.Runtime.NODEJS_18_X,
handler: "handler",
entry: path.join(`${__dirname}/../`, "functions", "yourlambda/index.ts"),
environment: {
BUCKET: props.s3Bucket.bucketName,
},
});
props.s3Bucket.grantReadWrite(yourLambda);
}
}

  1. Your lambda
  • This project uses pnpm workspace.
  • Add your function under functions (e.g. functions/yourlambda/index.ts)
  • you need to run pnpm i at the root of the project so that pnpm can recognize your function.
  • If you want add other dependencies, call pnpm init under functions/yourlambda then pnpm add {dependecies you want to add}
  1. Deploy
pnpm cdk:deploy

Tips
Accessing lambda layer
You can use submodules to access the lambda layer
git submodule add git@github.com:yourproject/main-cdk.git main-cdk

Then add the path in tsconfig.json
{
...
"paths": {
"/opt/nodejs/s3": ["main-cdk/functions/layers/awsservice/nodejs/s3"]
}
}

and when you update submodule
git submodule update --recursive --remote --merge

About
A CDK template to develop lambda functions in your isolated environment
Resources
Readme
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

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

Skip to content
BranchesTags
Repository files navigation
CDK lambda development template
This is a CDK template to develop lambda functions in your isolated environment
Why we need this?
When you are building a lambda function using CDK in a team, your functions get overriden by other developers functions when they deploy. By having isolated CDK environment which imports external resources (e.g. DynamoDB, S3), we can safely develop our lambda functions. Once you confirmed that your function is working properly in your environment, you can copy your code to your base CDK project.
How to use
  1. Set your development Stack info
new DevelopmentTemplateStack(app, `AppStack`, {
env: {
account: process.env.CDK_DEFAULT_ACCOUNT,
region: process.env.CDK_DEFAULT_REGION,
},
tags: {
app: "tag",
},
});

  1. Add your external resources & lambda function
export class DevelopmentTemplateStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);
// Reference your resouces
// See how to reference external resources https://docs.aws.amazon.com/cdk/v2/guide/resources.html
const s3Bucket = s3.Bucket.fromBucketArn(this, 'MyBucket', 'arn:aws:s3:::my-bucket-name');
// Set your lambda
cont yourLambda = new lambda_nodejs.NodejsFunction(this, "yourlambda", {
runtime: lambda.Runtime.NODEJS_18_X,
handler: "handler",
entry: path.join(`${__dirname}/../`, "functions", "yourlambda/index.ts"),
environment: {
BUCKET: props.s3Bucket.bucketName,
},
});
props.s3Bucket.grantReadWrite(yourLambda);
}
}

  1. Your lambda
  • This project uses pnpm workspace.
  • Add your function under functions (e.g. functions/yourlambda/index.ts)
  • you need to run pnpm i at the root of the project so that pnpm can recognize your function.
  • If you want add other dependencies, call pnpm init under functions/yourlambda then pnpm add {dependecies you want to add}
  1. Deploy
pnpm cdk:deploy

Tips
Accessing lambda layer
You can use submodules to access the lambda layer
git submodule add git@github.com:yourproject/main-cdk.git main-cdk

Then add the path in tsconfig.json
{
...
"paths": {
"/opt/nodejs/s3": ["main-cdk/functions/layers/awsservice/nodejs/s3"]
}
}

and when you update submodule
git submodule update --recursive --remote --merge

About
A CDK template to develop lambda functions in your isolated environment
Resources
Readme
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
CDK lambda development template
This is a CDK template to develop lambda functions in your isolated environment
Why we need this?
When you are building a lambda function using CDK in a team, your functions get overriden by other developers functions when they deploy. By having isolated CDK environment which imports external resources (e.g. DynamoDB, S3), we can safely develop our lambda functions. Once you confirmed that your function is working properly in your environment, you can copy your code to your base CDK project.
How to use
  1. Set your development Stack info
new DevelopmentTemplateStack(app, `AppStack`, {
env: {
account: process.env.CDK_DEFAULT_ACCOUNT,
region: process.env.CDK_DEFAULT_REGION,
},
tags: {
app: "tag",
},
});

  1. Add your external resources & lambda function
export class DevelopmentTemplateStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);
// Reference your resouces
// See how to reference external resources https://docs.aws.amazon.com/cdk/v2/guide/resources.html
const s3Bucket = s3.Bucket.fromBucketArn(this, 'MyBucket', 'arn:aws:s3:::my-bucket-name');
// Set your lambda
cont yourLambda = new lambda_nodejs.NodejsFunction(this, "yourlambda", {
runtime: lambda.Runtime.NODEJS_18_X,
handler: "handler",
entry: path.join(`${__dirname}/../`, "functions", "yourlambda/index.ts"),
environment: {
BUCKET: props.s3Bucket.bucketName,
},
});
props.s3Bucket.grantReadWrite(yourLambda);
}
}

  1. Your lambda
  • This project uses pnpm workspace.
  • Add your function under functions (e.g. functions/yourlambda/index.ts)
  • you need to run pnpm i at the root of the project so that pnpm can recognize your function.
  • If you want add other dependencies, call pnpm init under functions/yourlambda then pnpm add {dependecies you want to add}
  1. Deploy
pnpm cdk:deploy

Tips
Accessing lambda layer
You can use submodules to access the lambda layer
git submodule add git@github.com:yourproject/main-cdk.git main-cdk

Then add the path in tsconfig.json
{
...
"paths": {
"/opt/nodejs/s3": ["main-cdk/functions/layers/awsservice/nodejs/s3"]
}
}

and when you update submodule
git submodule update --recursive --remote --merge

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

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CDK lambda development template
This is a CDK template to develop lambda functions in your isolated environment
Why we need this?
When you are building a lambda function using CDK in a team, your functions get overriden by other developers functions when they deploy. By having isolated CDK environment which imports external resources (e.g. DynamoDB, S3), we can safely develop our lambda functions. Once you confirmed that your function is working properly in your environment, you can copy your code to your base CDK project.
How to use
  1. Set your development Stack info
new DevelopmentTemplateStack(app, `AppStack`, {
env: {
account: process.env.CDK_DEFAULT_ACCOUNT,
region: process.env.CDK_DEFAULT_REGION,
},
tags: {
app: "tag",
},
});

  1. Add your external resources & lambda function
export class DevelopmentTemplateStack extends Stack {
constructor(scope: Construct, id: string, props?: StackProps) {
super(scope, id, props);
// Reference your resouces
// See how to reference external resources https://docs.aws.amazon.com/cdk/v2/guide/resources.html
const s3Bucket = s3.Bucket.fromBucketArn(this, 'MyBucket', 'arn:aws:s3:::my-bucket-name');
// Set your lambda
cont yourLambda = new lambda_nodejs.NodejsFunction(this, "yourlambda", {
runtime: lambda.Runtime.NODEJS_18_X,
handler: "handler",
entry: path.join(`${__dirname}/../`, "functions", "yourlambda/index.ts"),
environment: {
BUCKET: props.s3Bucket.bucketName,
},
});
props.s3Bucket.grantReadWrite(yourLambda);
}
}

  1. Your lambda
  • This project uses pnpm workspace.
  • Add your function under functions (e.g. functions/yourlambda/index.ts)
  • you need to run pnpm i at the root of the project so that pnpm can recognize your function.
  • If you want add other dependencies, call pnpm init under functions/yourlambda then pnpm add {dependecies you want to add}
  1. Deploy
pnpm cdk:deploy

Tips
Accessing lambda layer
You can use submodules to access the lambda layer
git submodule add git@github.com:yourproject/main-cdk.git main-cdk

Then add the path in tsconfig.json
{
...
"paths": {
"/opt/nodejs/s3": ["main-cdk/functions/layers/awsservice/nodejs/s3"]
}
}

and when you update submodule
git submodule update --recursive --remote --merge

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A CDK template to develop lambda functions in your isolated environment
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