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Chronicle

Light weight, blazing fast blockchain indexer

This is originally built for Educational purposes

Run | Developer Docs

🚧 Under active development, see status below. 🚧

Overview

Chronicle in simple terms is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events. Chronicle stores these data in a Postgress DB and renders these data using an GraphQL interface. Chronicle is designed to achieve high-performance and high-reliability in cloud deployments via a modular architecture, Developers can hand-pick modules to build whatever, seeing the components of the Chronicle as pieces of Legos.

Chronicle architecture

Motivation

The motivation behind Chronicle lies in its mission to provide developers with a comprehensive, yet highly customizable toolset for indexing transactions and events across various blockchain networks. Whether it's monitoring smart contract interactions, tracking parachain activities, or analyzing decentralized finance (DeFi) protocols, Chronicle offers a unified solution that simplifies the complexities of data indexing.

Status

Chronicle is under active development. Use in production at your own risk.

Chain Support

Chronicle is built to be very modular, add new chains is very frictionless. Here are the categories of chains Chronicle is currently implemented for.

  • EVM compatible chains
  • Para chains (Polkadot)

Developers

Contributing

See CONTRIBUTING.md.

Running

TODO? on Docker implementation.

Developing

Clone the repository and checkout submodules:

git clone https://github.com/developeruche/chronicle
cd chronicle

Nix Environment

If you already have the proper Nix configuration, you can build the project’s artifacts inside a nix develop shell as follow

$ nix develop

For better integration of rust tooling with your default IDE, you may optionally use direnv

$ echo"use nix">> .envrc
$ direnv allow

All Environment

Add config file to the root of the project:

name = "chronicle_name"
[[indexer]]
event_name = "event_name"state_machine = "EVM"rpc_url = "wss://eth-mainnet.g.alchemy.com/v2/ALCHEYM_API_KEY"address = "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984"# UNI tokenevent_signature = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"# Transfer(address,address,uint256)block_number = 19711184db_url = "host=localhost user=postgres"
[server]
db_url = "host=localhost user=postgres"server_url = "127.0.0.1:8010"
cargo build --release
./target/debug/chronicle --config-path .config.toml

Run unit tests:

cargo test

License

The Chronicle library (i.e. all code outside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.

The Chronicle binaries (i.e. all code inside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.

About

Chronicle is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events.

Resources

Readme
GPL-3.0 license

Contributing

Contributing
Activity

Stars

13 stars

Watchers

2 watching

Forks

4 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
Chronicle
Light weight, blazing fast blockchain indexer
This is originally built for Educational purposes
Run | Developer Docs
🚧 Under active development, see status below. 🚧
Overview
Chronicle in simple terms is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events. Chronicle stores these data in a Postgress DB and renders these data using an GraphQL interface. Chronicle is designed to achieve high-performance and high-reliability in cloud deployments via a modular architecture, Developers can hand-pick modules to build whatever, seeing the components of the Chronicle as pieces of Legos.
Chronicle architecture
Motivation
The motivation behind Chronicle lies in its mission to provide developers with a comprehensive, yet highly customizable toolset for indexing transactions and events across various blockchain networks. Whether it's monitoring smart contract interactions, tracking parachain activities, or analyzing decentralized finance (DeFi) protocols, Chronicle offers a unified solution that simplifies the complexities of data indexing.
Status
Chronicle is under active development.
Use in production at your own risk.
Chain Support
Chronicle is built to be very modular, add new chains is very frictionless. Here are the categories of chains Chronicle is currently implemented for.
  • EVM compatible chains
  • Para chains (Polkadot)
Developers
Contributing
See CONTRIBUTING.md.
Running
TODO? on Docker implementation.
Developing
Clone the repository and checkout submodules:
git clone https://github.com/developeruche/chronicle
cd chronicle

Nix Environment
If you already have the proper Nix configuration, you can build the project’s artifacts inside a nix develop shell as follow
$ nix develop
For better integration of rust tooling with your default IDE, you may optionally use direnv
$ echo"use nix">> .envrc
$ direnv allow
All Environment
Add config file to the root of the project:
name = "chronicle_name"
[[indexer]]
event_name = "event_name"state_machine = "EVM"rpc_url = "wss://eth-mainnet.g.alchemy.com/v2/ALCHEYM_API_KEY"address = "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984"# UNI tokenevent_signature = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"# Transfer(address,address,uint256)block_number = 19711184db_url = "host=localhost user=postgres"
[server]
db_url = "host=localhost user=postgres"server_url = "127.0.0.1:8010"
cargo build --release
./target/debug/chronicle --config-path .config.toml

Run unit tests:
cargo test

License
The Chronicle library (i.e. all code outside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
The Chronicle binaries (i.e. all code inside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
About
Chronicle is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events.
Resources
Readme
GPL-3.0 license
Contributing
Contributing
Activity
Stars
13 stars
Watchers
2 watching
Forks
4 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
BranchesTags
Repository files navigation
Chronicle
Light weight, blazing fast blockchain indexer
This is originally built for Educational purposes
Run | Developer Docs
🚧 Under active development, see status below. 🚧
Overview
Chronicle in simple terms is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events. Chronicle stores these data in a Postgress DB and renders these data using an GraphQL interface. Chronicle is designed to achieve high-performance and high-reliability in cloud deployments via a modular architecture, Developers can hand-pick modules to build whatever, seeing the components of the Chronicle as pieces of Legos.
Chronicle architecture
Motivation
The motivation behind Chronicle lies in its mission to provide developers with a comprehensive, yet highly customizable toolset for indexing transactions and events across various blockchain networks. Whether it's monitoring smart contract interactions, tracking parachain activities, or analyzing decentralized finance (DeFi) protocols, Chronicle offers a unified solution that simplifies the complexities of data indexing.
Status
Chronicle is under active development.
Use in production at your own risk.
Chain Support
Chronicle is built to be very modular, add new chains is very frictionless. Here are the categories of chains Chronicle is currently implemented for.
  • EVM compatible chains
  • Para chains (Polkadot)
Developers
Contributing
See CONTRIBUTING.md.
Running
TODO? on Docker implementation.
Developing
Clone the repository and checkout submodules:
git clone https://github.com/developeruche/chronicle
cd chronicle

Nix Environment
If you already have the proper Nix configuration, you can build the project’s artifacts inside a nix develop shell as follow
$ nix develop
For better integration of rust tooling with your default IDE, you may optionally use direnv
$ echo"use nix">> .envrc
$ direnv allow
All Environment
Add config file to the root of the project:
name = "chronicle_name"
[[indexer]]
event_name = "event_name"state_machine = "EVM"rpc_url = "wss://eth-mainnet.g.alchemy.com/v2/ALCHEYM_API_KEY"address = "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984"# UNI tokenevent_signature = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"# Transfer(address,address,uint256)block_number = 19711184db_url = "host=localhost user=postgres"
[server]
db_url = "host=localhost user=postgres"server_url = "127.0.0.1:8010"
cargo build --release
./target/debug/chronicle --config-path .config.toml

Run unit tests:
cargo test

License
The Chronicle library (i.e. all code outside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
The Chronicle binaries (i.e. all code inside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
About
Chronicle is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events.
Resources
Readme
GPL-3.0 license
Contributing
Contributing
Activity
Stars
13 stars
Watchers
2 watching
Forks
4 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
Chronicle
Light weight, blazing fast blockchain indexer
This is originally built for Educational purposes
Run | Developer Docs
🚧 Under active development, see status below. 🚧
Overview
Chronicle in simple terms is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events. Chronicle stores these data in a Postgress DB and renders these data using an GraphQL interface. Chronicle is designed to achieve high-performance and high-reliability in cloud deployments via a modular architecture, Developers can hand-pick modules to build whatever, seeing the components of the Chronicle as pieces of Legos.
Chronicle architecture
Motivation
The motivation behind Chronicle lies in its mission to provide developers with a comprehensive, yet highly customizable toolset for indexing transactions and events across various blockchain networks. Whether it's monitoring smart contract interactions, tracking parachain activities, or analyzing decentralized finance (DeFi) protocols, Chronicle offers a unified solution that simplifies the complexities of data indexing.
Status
Chronicle is under active development.
Use in production at your own risk.
Chain Support
Chronicle is built to be very modular, add new chains is very frictionless. Here are the categories of chains Chronicle is currently implemented for.
  • EVM compatible chains
  • Para chains (Polkadot)
Developers
Contributing
See CONTRIBUTING.md.
Running
TODO? on Docker implementation.
Developing
Clone the repository and checkout submodules:
git clone https://github.com/developeruche/chronicle
cd chronicle

Nix Environment
If you already have the proper Nix configuration, you can build the project’s artifacts inside a nix develop shell as follow
$ nix develop
For better integration of rust tooling with your default IDE, you may optionally use direnv
$ echo"use nix">> .envrc
$ direnv allow
All Environment
Add config file to the root of the project:
name = "chronicle_name"
[[indexer]]
event_name = "event_name"state_machine = "EVM"rpc_url = "wss://eth-mainnet.g.alchemy.com/v2/ALCHEYM_API_KEY"address = "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984"# UNI tokenevent_signature = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"# Transfer(address,address,uint256)block_number = 19711184db_url = "host=localhost user=postgres"
[server]
db_url = "host=localhost user=postgres"server_url = "127.0.0.1:8010"
cargo build --release
./target/debug/chronicle --config-path .config.toml

Run unit tests:
cargo test

License
The Chronicle library (i.e. all code outside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
The Chronicle binaries (i.e. all code inside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
About
Chronicle is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events.
Resources
Readme
GPL-3.0 license
Contributing
Contributing
Activity
Stars
13 stars
Watchers
2 watching
Forks
4 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
Chronicle
Light weight, blazing fast blockchain indexer
This is originally built for Educational purposes
Run | Developer Docs
🚧 Under active development, see status below. 🚧
Overview
Chronicle in simple terms is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events. Chronicle stores these data in a Postgress DB and renders these data using an GraphQL interface. Chronicle is designed to achieve high-performance and high-reliability in cloud deployments via a modular architecture, Developers can hand-pick modules to build whatever, seeing the components of the Chronicle as pieces of Legos.
Chronicle architecture
Motivation
The motivation behind Chronicle lies in its mission to provide developers with a comprehensive, yet highly customizable toolset for indexing transactions and events across various blockchain networks. Whether it's monitoring smart contract interactions, tracking parachain activities, or analyzing decentralized finance (DeFi) protocols, Chronicle offers a unified solution that simplifies the complexities of data indexing.
Status
Chronicle is under active development.
Use in production at your own risk.
Chain Support
Chronicle is built to be very modular, add new chains is very frictionless. Here are the categories of chains Chronicle is currently implemented for.
  • EVM compatible chains
  • Para chains (Polkadot)
Developers
Contributing
See CONTRIBUTING.md.
Running
TODO? on Docker implementation.
Developing
Clone the repository and checkout submodules:
git clone https://github.com/developeruche/chronicle
cd chronicle

Nix Environment
If you already have the proper Nix configuration, you can build the project’s artifacts inside a nix develop shell as follow
$ nix develop
For better integration of rust tooling with your default IDE, you may optionally use direnv
$ echo"use nix">> .envrc
$ direnv allow
All Environment
Add config file to the root of the project:
name = "chronicle_name"
[[indexer]]
event_name = "event_name"state_machine = "EVM"rpc_url = "wss://eth-mainnet.g.alchemy.com/v2/ALCHEYM_API_KEY"address = "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984"# UNI tokenevent_signature = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"# Transfer(address,address,uint256)block_number = 19711184db_url = "host=localhost user=postgres"
[server]
db_url = "host=localhost user=postgres"server_url = "127.0.0.1:8010"
cargo build --release
./target/debug/chronicle --config-path .config.toml

Run unit tests:
cargo test

License
The Chronicle library (i.e. all code outside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
The Chronicle binaries (i.e. all code inside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
About
Chronicle is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events.
Resources
Readme
GPL-3.0 license
Contributing
Contributing
Activity
Stars
13 stars
Watchers
2 watching
Forks
4 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
Chronicle
Light weight, blazing fast blockchain indexer
This is originally built for Educational purposes
Run | Developer Docs
🚧 Under active development, see status below. 🚧
Overview
Chronicle in simple terms is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events. Chronicle stores these data in a Postgress DB and renders these data using an GraphQL interface. Chronicle is designed to achieve high-performance and high-reliability in cloud deployments via a modular architecture, Developers can hand-pick modules to build whatever, seeing the components of the Chronicle as pieces of Legos.
Chronicle architecture
Motivation
The motivation behind Chronicle lies in its mission to provide developers with a comprehensive, yet highly customizable toolset for indexing transactions and events across various blockchain networks. Whether it's monitoring smart contract interactions, tracking parachain activities, or analyzing decentralized finance (DeFi) protocols, Chronicle offers a unified solution that simplifies the complexities of data indexing.
Status
Chronicle is under active development.
Use in production at your own risk.
Chain Support
Chronicle is built to be very modular, add new chains is very frictionless. Here are the categories of chains Chronicle is currently implemented for.
  • EVM compatible chains
  • Para chains (Polkadot)
Developers
Contributing
See CONTRIBUTING.md.
Running
TODO? on Docker implementation.
Developing
Clone the repository and checkout submodules:
git clone https://github.com/developeruche/chronicle
cd chronicle

Nix Environment
If you already have the proper Nix configuration, you can build the project’s artifacts inside a nix develop shell as follow
$ nix develop
For better integration of rust tooling with your default IDE, you may optionally use direnv
$ echo"use nix">> .envrc
$ direnv allow
All Environment
Add config file to the root of the project:
name = "chronicle_name"
[[indexer]]
event_name = "event_name"state_machine = "EVM"rpc_url = "wss://eth-mainnet.g.alchemy.com/v2/ALCHEYM_API_KEY"address = "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984"# UNI tokenevent_signature = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"# Transfer(address,address,uint256)block_number = 19711184db_url = "host=localhost user=postgres"
[server]
db_url = "host=localhost user=postgres"server_url = "127.0.0.1:8010"
cargo build --release
./target/debug/chronicle --config-path .config.toml

Run unit tests:
cargo test

License
The Chronicle library (i.e. all code outside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
The Chronicle binaries (i.e. all code inside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
About
Chronicle is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events.
Resources
Readme
GPL-3.0 license
Contributing
Contributing
Activity
Stars
13 stars
Watchers
2 watching
Forks
4 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('^' + ".*" + '

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Chronicle
Light weight, blazing fast blockchain indexer
This is originally built for Educational purposes
Run | Developer Docs
🚧 Under active development, see status below. 🚧
Overview
Chronicle in simple terms is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events. Chronicle stores these data in a Postgress DB and renders these data using an GraphQL interface. Chronicle is designed to achieve high-performance and high-reliability in cloud deployments via a modular architecture, Developers can hand-pick modules to build whatever, seeing the components of the Chronicle as pieces of Legos.
Chronicle architecture
Motivation
The motivation behind Chronicle lies in its mission to provide developers with a comprehensive, yet highly customizable toolset for indexing transactions and events across various blockchain networks. Whether it's monitoring smart contract interactions, tracking parachain activities, or analyzing decentralized finance (DeFi) protocols, Chronicle offers a unified solution that simplifies the complexities of data indexing.
Status
Chronicle is under active development.
Use in production at your own risk.
Chain Support
Chronicle is built to be very modular, add new chains is very frictionless. Here are the categories of chains Chronicle is currently implemented for.
  • EVM compatible chains
  • Para chains (Polkadot)
Developers
Contributing
See CONTRIBUTING.md.
Running
TODO? on Docker implementation.
Developing
Clone the repository and checkout submodules:
git clone https://github.com/developeruche/chronicle
cd chronicle

Nix Environment
If you already have the proper Nix configuration, you can build the project’s artifacts inside a nix develop shell as follow
$ nix develop
For better integration of rust tooling with your default IDE, you may optionally use direnv
$ echo"use nix">> .envrc
$ direnv allow
All Environment
Add config file to the root of the project:
name = "chronicle_name"
[[indexer]]
event_name = "event_name"state_machine = "EVM"rpc_url = "wss://eth-mainnet.g.alchemy.com/v2/ALCHEYM_API_KEY"address = "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984"# UNI tokenevent_signature = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"# Transfer(address,address,uint256)block_number = 19711184db_url = "host=localhost user=postgres"
[server]
db_url = "host=localhost user=postgres"server_url = "127.0.0.1:8010"
cargo build --release
./target/debug/chronicle --config-path .config.toml

Run unit tests:
cargo test

License
The Chronicle library (i.e. all code outside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
The Chronicle binaries (i.e. all code inside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
About
Chronicle is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events.
Resources
Readme
GPL-3.0 license
Contributing
Contributing
Activity
Stars
13 stars
Watchers
2 watching
Forks
4 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
Chronicle
Light weight, blazing fast blockchain indexer
This is originally built for Educational purposes
Run | Developer Docs
🚧 Under active development, see status below. 🚧
Overview
Chronicle in simple terms is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events. Chronicle stores these data in a Postgress DB and renders these data using an GraphQL interface. Chronicle is designed to achieve high-performance and high-reliability in cloud deployments via a modular architecture, Developers can hand-pick modules to build whatever, seeing the components of the Chronicle as pieces of Legos.
Chronicle architecture
Motivation
The motivation behind Chronicle lies in its mission to provide developers with a comprehensive, yet highly customizable toolset for indexing transactions and events across various blockchain networks. Whether it's monitoring smart contract interactions, tracking parachain activities, or analyzing decentralized finance (DeFi) protocols, Chronicle offers a unified solution that simplifies the complexities of data indexing.
Status
Chronicle is under active development.
Use in production at your own risk.
Chain Support
Chronicle is built to be very modular, add new chains is very frictionless. Here are the categories of chains Chronicle is currently implemented for.
  • EVM compatible chains
  • Para chains (Polkadot)
Developers
Contributing
See CONTRIBUTING.md.
Running
TODO? on Docker implementation.
Developing
Clone the repository and checkout submodules:
git clone https://github.com/developeruche/chronicle
cd chronicle

Nix Environment
If you already have the proper Nix configuration, you can build the project’s artifacts inside a nix develop shell as follow
$ nix develop
For better integration of rust tooling with your default IDE, you may optionally use direnv
$ echo"use nix">> .envrc
$ direnv allow
All Environment
Add config file to the root of the project:
name = "chronicle_name"
[[indexer]]
event_name = "event_name"state_machine = "EVM"rpc_url = "wss://eth-mainnet.g.alchemy.com/v2/ALCHEYM_API_KEY"address = "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984"# UNI tokenevent_signature = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"# Transfer(address,address,uint256)block_number = 19711184db_url = "host=localhost user=postgres"
[server]
db_url = "host=localhost user=postgres"server_url = "127.0.0.1:8010"
cargo build --release
./target/debug/chronicle --config-path .config.toml

Run unit tests:
cargo test

License
The Chronicle library (i.e. all code outside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
The Chronicle binaries (i.e. all code inside of the bin directory) is licensed under the GNU Lesser General Public License v3.0.
About
Chronicle is an indexing software, indexing transactions and modules (Smart contract, Parachain, and so on) Events.
Resources
Readme
GPL-3.0 license
Contributing
Contributing
Activity
Stars
13 stars
Watchers
2 watching
Forks
4 forks
Report repository
Releases
Packages
Used by
Contributors
Languages