feat(opdata-5380): generated EA

package.json

@@ -77,5 +77,10 @@
   "resolutions": {
     "ethereum-cryptography@^1.1.2": "patch:ethereum-cryptography@npm%3A1.1.2#./.yarn/patches/ethereum-cryptography-npm-1.1.2-c16cfd7e8a.patch",
     "ethereum-cryptography@^1.0.3": "patch:ethereum-cryptography@npm%3A1.1.2#./.yarn/patches/ethereum-cryptography-npm-1.1.2-c16cfd7e8a.patch"
+  },
+  "dependenciesMeta": {
+    "@chainlink/external-adapter-framework@2.9.0": {
+      "unplugged": true
+    }
   }
 }

packages/composites/cusd-feed/README.md

@@ -0,0 +1,3 @@
+# Chainlink External Adapter for example-adapter
+
+This README will be generated automatically when code is merged to `main`. If you would like to generate a preview of the README, please run `yarn generate:readme example-adapter`.

packages/composites/cusd-feed/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "@chainlink/cusd-feed-adapter",
+  "version": "0.0.0",
+  "description": "Chainlink cusd-feed adapter. Calculates the CUSD feed price by dividing aggregated AUM by the total supply of the cUSD token on Ethereum.",
+  "keywords": [
+    "Chainlink",
+    "LINK",
+    "blockchain",
+    "oracle",
+    "cusd-feed"
+  ],
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "files": [
+    "dist"
+  ],
+  "repository": {
+    "url": "https://github.com/smartcontractkit/external-adapters-js",
+    "type": "git"
+  },
+  "license": "MIT",
+  "scripts": {
+    "clean": "rm -rf dist && rm -f tsconfig.tsbuildinfo",
+    "prepack": "yarn build",
+    "build": "tsc -b",
+    "server": "node -e 'require(\"./index.js\").server()'",
+    "server:dist": "node -e 'require(\"./dist/index.js\").server()'",
+    "start": "yarn server:dist"
+  },
+  "devDependencies": {
+    "@types/jest": "^29.5.14",
+    "@types/node": "22.14.1",
+    "nock": "13.5.6",
+    "typescript": "5.8.3"
+  },
+  "dependencies": {
+    "@chainlink/external-adapter-framework": "2.11.4",
+    "decimal.js": "^10.3.1",
+    "ethers": "^6.13.0",
+    "tslib": "2.4.1"
+  }
+}

packages/composites/cusd-feed/src/config/index.ts

@@ -0,0 +1,35 @@
+import { AdapterConfig } from '@chainlink/external-adapter-framework/config'
+
+export const config = new AdapterConfig({
+  ETHEREUM_RPC_URL: {
+    description: 'RPC URL for Ethereum mainnet',
+    type: 'string',
+    required: true,
+  },
+  ETHEREUM_CHAIN_ID: {
+    description: 'Chain ID for Ethereum mainnet',
+    type: 'number',
+    default: 1,
+  },
+  PROOF_OF_RESERVES_ADAPTER_URL: {
+    description: 'URL of the proof-of-reserves EA',
+    type: 'string',
+    required: true,
+  },
+  CUSD_CONTRACT_ADDRESS: {
+    description: 'Address of the cUSD token contract on Ethereum',
+    type: 'string',
+    default: '0xcCcc62962d17b8914c62D74FfB843d73B2a3cccC',
+  },
+  POR_ADDRESS_LIST_CONTRACT: {
+    description: 'Address of the CapChainlinkPoRAddressList contract on Ethereum',
+    type: 'string',
+    default: '0x69A22f0fc7b398e637BF830B862C75dd854b2BbF',
+  },
+  BACKGROUND_EXECUTE_MS: {
+    description:
+      'The amount of time the background execute should sleep before performing the next request',
+    type: 'number',
+    default: 10_000,
+  },
+})

packages/composites/cusd-feed/src/config/overrides.json

@@ -0,0 +1,3 @@
+{
+  "cusd-feed": {}
+}

packages/composites/cusd-feed/src/endpoint/index.ts

@@ -0,0 +1 @@
+export { endpoint as price } from './price'

packages/composites/cusd-feed/src/endpoint/price.ts

@@ -0,0 +1,23 @@
+import { AdapterEndpoint } from '@chainlink/external-adapter-framework/adapter'
+import { EmptyInputParameters } from '@chainlink/external-adapter-framework/validation/input-params'
+import { config } from '../config'
+import { cusdFeedTransport } from '../transport/price'
+
+export type BaseEndpointTypes = {
+  Parameters: EmptyInputParameters
+  Response: {
+    Result: string
+    Data: {
+      result: string
+      aum: string
+      totalSupply: string
+      ratio: string
+    }
+  }
+  Settings: typeof config.settings
+}
+
+export const endpoint = new AdapterEndpoint({
+  name: 'price',
+  transport: cusdFeedTransport,
+})

packages/composites/cusd-feed/src/index.ts

@@ -0,0 +1,13 @@
+import { expose, ServerInstance } from '@chainlink/external-adapter-framework'
+import { Adapter } from '@chainlink/external-adapter-framework/adapter'
+import { config } from './config'
+import { price } from './endpoint'
+
+export const adapter = new Adapter({
+  defaultEndpoint: price.name,
+  name: 'CUSD_FEED',
+  config,
+  endpoints: [price],
+})
+
+export const server = (): Promise<ServerInstance | undefined> => expose(adapter)