Add generated docs (#2)
Part of https://www.notion.so/Implement-stacks-1b5a6b22d472806a82f5dafed6955138 Reviewed-on: #2 Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com> Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
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CLAUDE.md
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CLAUDE.md
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# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Project Overview
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This is a monorepo containing blockchain watchers for the Azimuth PKI system used in Urbit identities. It watches multiple Ethereum contracts (Azimuth, Censures, Claims, ConditionalStarRelease, DelegatedSending, Ecliptic, LinearStarRelease, Polls) and provides GraphQL APIs for querying their state.
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## Common Commands
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### Building and Development
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```bash
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# Build all packages
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yarn build
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# or
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lerna run build --stream
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# Lint all packages (max warnings = 0)
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yarn lint
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# or
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lerna run lint --stream -- --max-warnings=0
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# Set versions across packages
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yarn version:set
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# or
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lerna version --no-git-tag-version
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```
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### Individual Watcher Commands
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Each watcher package supports these commands:
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```bash
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# Development server (with hot reload)
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yarn server:dev
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# Production server
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yarn server
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# Job runner (processes blockchain events)
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yarn job-runner:dev # development
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yarn job-runner # production
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# Watch contract for events
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yarn watch:contract
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# Fill historical data
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yarn fill
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# Reset operations
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yarn reset
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# State management
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yarn checkpoint:dev
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yarn export-state:dev
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yarn import-state:dev
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# Utilities
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yarn inspect-cid
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yarn index-block
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```
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### Gateway Server
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```bash
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# Development gateway server (proxies to all watchers)
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yarn server:dev
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# Production gateway server
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yarn server
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```
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## Architecture
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### Monorepo Structure
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- **Lerna-managed** yarn workspaces with 8 watcher packages + 1 gateway server
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- Each watcher is a standalone service with its own database and GraphQL endpoint
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- **Gateway server** acts as a unified GraphQL proxy that routes queries to appropriate watchers
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### Watcher Packages
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Each watcher follows identical structure:
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- **Port allocation**: azimuth(3001), censures(3002), claims(3003), conditionalStarRelease(3004), delegatedSending(3005), ecliptic(3006), linearStarRelease(3007), polls(3008)
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- **Database**: Individual PostgreSQL database per watcher
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- **Configuration**: TOML files in `environments/` directory
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- **Generated code**: Built from contract ABIs using `@cerc-io/codegen`
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### Key Components Per Watcher
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- `src/server.ts` - GraphQL server
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- `src/job-runner.ts` - Event processing worker
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- `src/indexer.ts` - Blockchain event indexing logic
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- `src/resolvers.ts` - GraphQL resolvers
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- `src/entity/` - TypeORM entities for all contract methods
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- `src/gql/queries/` - GraphQL query definitions
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- `src/cli/` - Command-line utilities for management
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### Gateway Server Architecture
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- **Schema stitching**: Combines all watcher schemas with prefixed field names
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- **Health checking**: Monitors watcher availability before routing
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- **Configuration**: `src/watchers.json` defines watcher endpoints and prefixes
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- **GraphQL proxy**: Routes queries like `azimuthGetKeys` to azimuth-watcher at localhost:3001
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### Data Flow
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1. **Event Processing**: job-runner fetches Ethereum events → processes through indexer → stores in database
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2. **Query Processing**: GraphQL queries → gateway server → appropriate watcher → database → response
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3. **State Management**: Supports checkpointing, state export/import for data recovery
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## Configuration Notes
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### Environment Setup
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- Each watcher requires PostgreSQL database (configurable in `environments/local.toml`)
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- Requires Ethereum RPC endpoint (ipld-eth-server or standard RPC)
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- Gateway server expects all watchers running on their designated ports
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### Development Workflow
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- Start individual watchers with `yarn server:dev` and `yarn job-runner:dev`
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- Start gateway server for unified GraphQL endpoint
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- Use `yarn fill` to sync historical blockchain data
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- Monitor with debug logs using `DEBUG=vulcanize:*`
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### Generated Watcher Creation
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Watchers are generated using `@cerc-io/codegen` from contract ABIs. The process involves creating config.yaml files specifying contract paths, output folders, and generation modes (eth_call/storage/all).
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README.md
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README.md
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# azimuth-watcher-ts
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Watcher for the Azimuth PKI on Ethereum, used in Urbit identities. Read more about Azimuth:
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A comprehensive blockchain indexing and querying system for [Azimuth](https://docs.urbit.org/system/identity), Urbit's identity layer on Ethereum. This system monitors multiple Ethereum smart contracts that make up the Azimuth PKI and provides a unified GraphQL API for querying Urbit identity information.
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* [https://developers.urbit.org/reference/azimuth/azimuth](https://developers.urbit.org/reference/azimuth/azimuth)
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## What is Azimuth?
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This app can be run using Stack Orchestrator:
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Azimuth is Urbit's public key infrastructure (PKI) that lives on Ethereum. It's a set of smart contracts that manage Urbit identities called "points" (similar to usernames), their ownership, cryptographic keys, and hierarchical relationships. By storing identity data on Ethereum, the system is decentralized and censorship-resistant.
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* [Azimuth stack](https://git.vdb.to/cerc-io/stack-orchestrator/src/branch/main/app/data/stacks/azimuth)
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## What are Watchers?
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It is also hosted at <https://azimuth.dev.vdb.to/graphql>
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Watchers are services that continuously monitor smart contracts on Ethereum, index their events and state changes, and provide efficient APIs for querying blockchain data. Instead of directly querying the Ethereum blockchain (which is slow and expensive), applications can query watchers for fast, indexed access to current and historical blockchain state.
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## Usage
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## System Architecture
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* Query public keys for a point:
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This system consists of **8 specialized watchers** that each monitor different Azimuth smart contracts:
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```bash
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# Example
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curl 'https://azimuth.dev.vdb.to/graphql' \
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- **azimuth-watcher** - Core identity operations (ownership, keys, sponsorship)
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- **censures-watcher** - Reputation and censure system
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- **claims-watcher** - On-chain claims and metadata
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- **ecliptic-watcher** - Galaxy operations and governance
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- **polls-watcher** - Voting and governance proposals
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- **conditional-star-release-watcher** - Conditional star distribution
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- **linear-star-release-watcher** - Linear star distribution
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- **delegated-sending-watcher** - Delegated operations
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Plus a **gateway server** that provides a unified GraphQL endpoint routing queries to the appropriate watcher.
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## Hosted Service
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A public instance is available at: **<https://azimuth.dev.vdb.to/graphql>**
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You can also run the system locally using [Stack Orchestrator](https://git.vdb.to/cerc-io/stack-orchestrator/src/branch/main/app/data/stacks/azimuth).
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## Common Use Cases
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### Querying Urbit Point Information
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The **azimuth-watcher** is the primary service for querying Urbit identity data. Here are the most common operations:
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#### 1. Get Point Owner and Basic Info
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```bash
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# Check who owns a specific Urbit point
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# Example:
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curl 'https://azimuth.dev.vdb.to/graphql' \
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-H 'Content-Type: application/json' \
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--data-raw '{"query":"{ azimuthGetOwner(blockHash: \"latest\", contractAddress: \"0x223c067F8CF28ae173EE5CafEa60cA44C335fecB\", _point: 1234) { value } }"}' \
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| jq
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# Response:
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# {
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# "data": {
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# "azimuthGetOwner": {
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# "value": "0x4b22764F2Db640aB4d0Ecfd0F84344F3CB5C3715"
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# }
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# }
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# }
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```
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#### 2. Get Cryptographic Keys for a Point
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```bash
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# Get encryption and authentication keys for networking
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# Example:
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curl 'https://azimuth.dev.vdb.to/graphql' \
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-H 'Content-Type: application/json' \
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--data-raw '{"query":"{ azimuthGetKeys(blockHash: \"latest\", contractAddress: \"0x223c067F8CF28ae173EE5CafEa60cA44C335fecB\", _point: 58213) { value { encryptionKey: value0 authenticationKey: value1 cryptoSuiteVersion: value2 keyRevisionNumber: value3 } } }"}' \
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| jq
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# Response
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# {
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# "data": {
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# "azimuthGetKeys": {
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# "value": {
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# "encryptionKey": "0xc248f759474b16192bd8bdca0bff1b8bff555cd3d118022095331d6d98690c6d",
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# "authenticationKey": "0x21188bac08542730e1c4697636d6fa25968f404470ccf917756f05e28c69045a",
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# "cryptoSuiteVersion": "1",
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# "keyRevisionNumber": "1"
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# }
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# }
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# }
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# }
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```
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# Response:
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# {
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# "data": {
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# "azimuthGetKeys": {
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# "value": {
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# "encryptionKey": "0xc248f759474b16192bd8bdca0bff1b8bff555cd3d118022095331d6d98690c6d",
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# "authenticationKey": "0x21188bac08542730e1c4697636d6fa25968f404470ccf917756f05e28c69045a",
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# "cryptoSuiteVersion": "1",
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# "keyRevisionNumber": "1"
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# }
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# }
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# }
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# }
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```
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* API params:
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* `contractAddress`: Azimuth contract address
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* `blockHash`: block hash at which you want to query the contract state
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#### 3. Check Point Status
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* Example GQL queries:
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```bash
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# Check if a point is active (booted) and has a sponsor
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# Example:
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curl 'https://azimuth.dev.vdb.to/graphql' \
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-H 'Content-Type: application/json' \
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--data-raw '{"query":"{ azimuthIsActive(blockHash: \"latest\", contractAddress: \"0x223c067F8CF28ae173EE5CafEa60cA44C335fecB\", _point: 1234) { value } azimuthHasSponsor(blockHash: \"latest\", contractAddress: \"0x223c067F8CF28ae173EE5CafEa60cA44C335fecB\", _point: 1234) { value } azimuthGetSponsor(blockHash: \"latest\", contractAddress: \"0x223c067F8CF28ae173EE5CafEa60cA44C335fecB\", _point: 1234) { value } }"}' \
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| jq
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```gql
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{
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# Response:
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# {
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# "data": {
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# "azimuthIsActive": {
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# "value": true
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# },
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# "azimuthHasSponsor": {
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# "value": true
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# },
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# "azimuthGetSponsor": {
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# "value": "210"
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# }
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# }
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# }
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```
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#### 4. Get All Points Owned by an Address
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```bash
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# Find all Urbit points owned by an Ethereum address
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# Example:
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curl 'https://azimuth.dev.vdb.to/graphql' \
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-H 'Content-Type: application/json' \
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--data-raw '{"query":"{ azimuthGetOwnedPoints(blockHash: \"latest\", contractAddress: \"0x223c067F8CF28ae173EE5CafEa60cA44C335fecB\", _whose: \"0x1234567890123456789012345678901234567890\") { value } }"}' \
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| jq
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# Response:
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# {
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# "data": {
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# "azimuthGetOwnedPoints": {
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# "value": [
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# "57965",
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# "1234"
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# ]
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# }
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# }
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# }
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```
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#### 5. Multi-Watcher Queries
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The gateway server allows querying multiple watchers in a single request:
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```graphql
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{
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# Check point status (azimuth-watcher)
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azimuthIsActive(
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blockHash: "0x2461e78f075e618173c524b5ab4309111001517bb50cfd1b3505aed5433cf5f9"
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contractAddress: "0x223c067F8CF28ae173EE5CafEa60cA44C335fecB"
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@ -51,13 +145,17 @@ It is also hosted at <https://azimuth.dev.vdb.to/graphql>
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) {
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value
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}
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# Check censure count (censures-watcher)
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censuresGetCensuredByCount(
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blockHash: "0x2461e78f075e618173c524b5ab4309111001517bb50cfd1b3505aed5433cf5f9"
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contractAddress: "0x325f68d32BdEe6Ed86E7235ff2480e2A433D6189"
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_who: 6054
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) {
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value
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}
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} }
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# Find a claim (claims-watcher)
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claimsFindClaim(
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blockHash: "0x2461e78f075e618173c524b5ab4309111001517bb50cfd1b3505aed5433cf5f9"
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contractAddress: "0xe7e7f69b34D7d9Bd8d61Fb22C33b22708947971A"
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@ -67,6 +165,8 @@ It is also hosted at <https://azimuth.dev.vdb.to/graphql>
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) {
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value
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}
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# Check star release balance (linear-star-release-watcher)
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linearStarReleaseVerifyBalance(
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blockHash: "0x2461e78f075e618173c524b5ab4309111001517bb50cfd1b3505aed5433cf5f9"
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contractAddress: "0x86cd9cd0992F04231751E3761De45cEceA5d1801"
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@ -74,6 +174,8 @@ It is also hosted at <https://azimuth.dev.vdb.to/graphql>
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) {
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value
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}
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# Check conditional star release (conditional-star-release-watcher)
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conditionalStarReleaseWithdrawLimit(
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blockHash: "0x2461e78f075e618173c524b5ab4309111001517bb50cfd1b3505aed5433cf5f9"
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contractAddress: "0x8C241098C3D3498Fe1261421633FD57986D74AeA"
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@ -82,12 +184,16 @@ It is also hosted at <https://azimuth.dev.vdb.to/graphql>
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) {
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value
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}
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# Check governance proposals (polls-watcher)
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pollsGetUpgradeProposalCount(
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blockHash: "0xeaf611fabbe604932d36b97c89955c091e9582e292b741ebf144962b9ff5c271"
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contractAddress: "0x7fEcaB617c868Bb5996d99D95200D2Fa708218e4"
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) {
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value
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}
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# Check NFT balance (ecliptic-watcher)
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eclipticBalanceOf(
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blockHash: "0x5e82abbe6474caf7b5325022db1d1287ce352488b303685493289770484f54f4"
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contractAddress: "0x33EeCbf908478C10614626A9D304bfe18B78DD73"
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@ -95,6 +201,8 @@ It is also hosted at <https://azimuth.dev.vdb.to/graphql>
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) {
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value
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}
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# Check delegation permissions (delegated-sending-watcher)
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delegatedSendingCanSend(
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blockHash: "0x2461e78f075e618173c524b5ab4309111001517bb50cfd1b3505aed5433cf5f9"
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contractAddress: "0xf6b461fE1aD4bd2ce25B23Fe0aff2ac19B3dFA76"
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@ -103,84 +211,31 @@ It is also hosted at <https://azimuth.dev.vdb.to/graphql>
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) {
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value
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}
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}
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```
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}
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```
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## Generate Watchers
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### Understanding Query Parameters
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Steps to generate Azimuth watchers using the code generator ([`@cerc-io/codegen`](https://github.com/cerc-io/watcher-ts/tree/v0.2.76/packages/codegen))
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All queries require these standard parameters:
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* Clone the original Azimuth repo for required contracts:
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- **`blockHash`**: Use `"latest"` for current state, or a specific block hash for historical queries
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- **`contractAddress`**: Azimuth contract address (`0x223c067F8CF28ae173EE5CafEa60cA44C335fecB`)
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- **`_point`**: The Urbit point number you're querying
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- **`_whose`**: Ethereum address when querying by owner
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```bash
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git clone git@github.com:urbit/azimuth.git
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## How It Works
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# Install dependencies
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npm install
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### Data Source
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# Contracts are located in the contracts folder
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```
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The watchers continuously monitor Ethereum smart contracts by connecting to Ethereum RPC endpoint(s), indexing blockchain events and state changes.
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* Setup `cerc-io/watcher-ts` repo:
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### Data Flow
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```bash
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git clone git@github.com:cerc-io/watcher-ts.git
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1. **Indexing**: Job runners fetch Ethereum events and blocks from RPC endpoint(s)
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2. **Processing**: Events are processed and state changes stored in PostgreSQL databases
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3. **Querying**: GraphQL servers provide fast, indexed access to current and historical blockchain state
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4. **Gateway**: Unified endpoint routes queries to appropriate specialized watchers
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||||
# Install dependencies and build packages
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yarn install && yarn build
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```
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### Storage
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||||
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* Create a folder to place all the generated watchers in:
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||||
```bash
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mkdir -p azimuth-watcher-ts/packages
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```
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||||
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||||
* In `watcher-ts/packages/codegen`, create a `config.yaml` file with required codegen config for generating the watcher for a contract
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||||
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||||
For example, for `Azimuth` contract:
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```yaml
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# Contracts to watch (required).
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contracts:
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# Contract name.
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- name: Azimuth
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# Contract file path or an url.
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path: /home/user/azimuth/contracts/Azimuth.sol
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# Contract kind
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kind: Azimuth
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# Output folder path (logs output using `stdout` if not provided).
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outputFolder: /home/user/azimuth-watcher-ts/packages/azimuth-watcher
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||||
# Code generation mode [eth_call | storage | all | none] (default: none).
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mode: eth_call
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||||
|
||||
# Kind of watcher [lazy | active] (default: active).
|
||||
kind: active
|
||||
|
||||
# Watcher server port (default: 3008).
|
||||
port: 3001
|
||||
|
||||
# Solc version to use (optional)
|
||||
# If not defined, uses solc version listed in dependencies
|
||||
solc: v0.4.24+commit.e67f0147
|
||||
|
||||
# Flatten the input contract file(s) [true | false] (default: true).
|
||||
flatten: true
|
||||
```
|
||||
|
||||
Note: Create `.sol` files with the contract code from Etherscan for [`ConditionalStarRelease`](https://etherscan.io/address/0x8C241098C3D3498Fe1261421633FD57986D74AeA#code), [`DelegatedSending`](https://etherscan.io/address/0xf6b461fe1ad4bd2ce25b23fe0aff2ac19b3dfa76#code), [`Ecliptic`](https://etherscan.io/address/ecliptic.eth#code) and [`LinearStarRelease`](https://etherscan.io/address/0x86cd9cd0992F04231751E3761De45cEceA5d1801#code) contracts and use the file path for `contracts.path`
|
||||
|
||||
* Run codegen command to generate the watcher:
|
||||
|
||||
```bash
|
||||
# In watcher-ts/packages/codegen
|
||||
yarn codegen --config-file ./config.yaml
|
||||
```
|
||||
|
||||
* Update `contracts`, `outputFolder` and `port` fields in the config and re-run the codegen command for all other contracts
|
||||
|
||||
* Setup the parent folder `/home/user/azimuth-watcher-ts` where all the generated watchers are placed as a monorepo
|
||||
|
||||
* The [gateway GQL server](packages/gateway-server) can be used to proxy queries to their respective watchers
|
||||
Each watcher maintains its own PostgreSQL database for efficient querying and data isolation.
|
||||
|
||||
76
generate-watchers.md
Normal file
76
generate-watchers.md
Normal file
@ -0,0 +1,76 @@
|
||||
# Generate Azimuth Watchers
|
||||
|
||||
* Clone the original Azimuth repo for required contracts:
|
||||
|
||||
```bash
|
||||
git clone git@github.com:urbit/azimuth.git
|
||||
|
||||
# Install dependencies
|
||||
npm install
|
||||
|
||||
# Contracts are located in the contracts folder
|
||||
```
|
||||
|
||||
* Setup `cerc-io/watcher-ts` repo:
|
||||
|
||||
```bash
|
||||
git clone git@github.com:cerc-io/watcher-ts.git
|
||||
|
||||
# Install dependencies and build packages
|
||||
yarn install && yarn build
|
||||
```
|
||||
|
||||
* Create a folder to place all the generated watchers in:
|
||||
|
||||
```bash
|
||||
mkdir -p azimuth-watcher-ts/packages
|
||||
```
|
||||
|
||||
* In `watcher-ts/packages/codegen`, create a `config.yaml` file with required codegen config for generating the watcher for a contract
|
||||
|
||||
For example, for `Azimuth` contract:
|
||||
|
||||
```yaml
|
||||
# Contracts to watch (required).
|
||||
contracts:
|
||||
# Contract name.
|
||||
- name: Azimuth
|
||||
# Contract file path or an url.
|
||||
path: /home/user/azimuth/contracts/Azimuth.sol
|
||||
# Contract kind
|
||||
kind: Azimuth
|
||||
|
||||
# Output folder path (logs output using `stdout` if not provided).
|
||||
outputFolder: /home/user/azimuth-watcher-ts/packages/azimuth-watcher
|
||||
|
||||
# Code generation mode [eth_call | storage | all | none] (default: none).
|
||||
mode: eth_call
|
||||
|
||||
# Kind of watcher [lazy | active] (default: active).
|
||||
kind: active
|
||||
|
||||
# Watcher server port (default: 3008).
|
||||
port: 3001
|
||||
|
||||
# Solc version to use (optional)
|
||||
# If not defined, uses solc version listed in dependencies
|
||||
solc: v0.4.24+commit.e67f0147
|
||||
|
||||
# Flatten the input contract file(s) [true | false] (default: true).
|
||||
flatten: true
|
||||
```
|
||||
|
||||
Note: Create `.sol` files with the contract code from Etherscan for [`ConditionalStarRelease`](https://etherscan.io/address/0x8C241098C3D3498Fe1261421633FD57986D74AeA#code), [`DelegatedSending`](https://etherscan.io/address/0xf6b461fe1ad4bd2ce25b23fe0aff2ac19b3dfa76#code), [`Ecliptic`](https://etherscan.io/address/ecliptic.eth#code) and [`LinearStarRelease`](https://etherscan.io/address/0x86cd9cd0992F04231751E3761De45cEceA5d1801#code) contracts and use the file path for `contracts.path`
|
||||
|
||||
* Run codegen command to generate the watcher:
|
||||
|
||||
```bash
|
||||
# In watcher-ts/packages/codegen
|
||||
yarn codegen --config-file ./config.yaml
|
||||
```
|
||||
|
||||
* Update `contracts`, `outputFolder` and `port` fields in the config and re-run the codegen command for all other contracts
|
||||
|
||||
* Setup the parent folder `/home/user/azimuth-watcher-ts` where all the generated watchers are placed as a monorepo
|
||||
|
||||
* The [gateway GQL server](packages/gateway-server) can be used to proxy queries to their respective watchers
|
||||
Loading…
Reference in New Issue
Block a user