Adds EA for LibreCapital

Author: mohamed-mehany

.changeset/shiny-points-melt.md

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+---
+'@chainlink/nav-libre-adapter': major
+---
+
+Adds NAV adapter for LibreCapital

.pnp.cjs

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+# Chainlink External Adapter for nav-libre
+
+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 nav-libre`.

packages/sources/nav-libre/CHANGELOG.md

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+{
+  "name": "@chainlink/nav-libre-adapter",
+  "version": "0.0.0",
+  "description": "Chainlink nav-libre adapter.",
+  "keywords": [
+    "Chainlink",
+    "LINK",
+    "blockchain",
+    "oracle",
+    "nav-libre"
+  ],
+  "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/crypto-js": "^4",
+    "@types/jest": "27.5.2",
+    "@types/node": "16.18.119",
+    "nock": "13.5.5",
+    "typescript": "5.6.3"
+  },
+  "dependencies": {
+    "@chainlink/external-adapter-framework": "2.6.0",
+    "crypto-js": "^4.2.0",
+    "dayjs": "^1.11.13",
+    "tslib": "2.4.1",
+    "uuid": "^11.1.0"
+  }
+}

packages/sources/nav-libre/README.md

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+import { AdapterConfig } from '@chainlink/external-adapter-framework/config'
+
+export const config = new AdapterConfig({
+  API_KEY: {
+    description: 'An API key for Data Provider',
+    type: 'string',
+    required: true,
+    sensitive: true,
+  },
+  SECRET_KEY: {
+    description: 'A key for Data Provider used in hashing the API key',
+    type: 'string',
+    required: true,
+    sensitive: true,
+  },
+  API_ENDPOINT: {
+    description: 'An API endpoint for Data Provider',
+    type: 'string',
+    default: 'https://api.navfundservices.com/',
+  },
+  MAX_RETRIES: {
+    description: 'Maximum attempts of sending a request',
+    type: 'number',
+    default: 3,
+  },
+})

packages/sources/nav-libre/package.json

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+export { endpoint as nav } from './nav'

packages/sources/nav-libre/src/config/index.ts

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+import { AdapterEndpoint } from '@chainlink/external-adapter-framework/adapter'
+import { InputParameters } from '@chainlink/external-adapter-framework/validation'
+import dayjs from 'dayjs'
+import { config } from '../config'
+import { httpTransport } from '../transport/nav'
+
+export const inputParameters = new InputParameters(
+  {
+    globalFundID: {
+      required: true,
+      type: 'number',
+      description: 'The global fund ID for the Libre fund',
+    },
+    fromDate: {
+      required: false,
+      type: 'string',
+      description: 'Start date in MM-DD-YYYY format (defaults to 7 days ago)',
+      default: dayjs().subtract(7, 'day').format('MM-DD-YYYY'),
+    },
+    toDate: {
+      required: false,
+      type: 'string',
+      description: 'End date in MM-DD-YYYY format (defaults to today)',
+      default: dayjs().format('MM-DD-YYYY'),
+    },
+  },
+  [
+    {
+      globalFundID: 139767,
+      fromDate: '12-30-2024',
+      toDate: '01-15-2025',
+    },
+  ],
+)
+export type BaseEndpointTypes = {
+  Parameters: typeof inputParameters.definition
+  Response: {
+    Result: number
+    Data: {
+      navPerShare: number
+      navDate: string
+      globalFundID: number
+    }
+  }
+  Settings: typeof config.settings
+}
+
+export const endpoint = new AdapterEndpoint({
+  name: 'nav',
+  aliases: [],
+  transport: httpTransport,
+  inputParameters,
+})

packages/sources/nav-libre/src/endpoint/index.ts

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+import { expose, ServerInstance } from '@chainlink/external-adapter-framework'
+import { Adapter } from '@chainlink/external-adapter-framework/adapter'
+import { config } from './config'
+import { nav } from './endpoint'
+
+export const adapter = new Adapter({
+  defaultEndpoint: nav.name,
+  name: 'NAV_LIBRE',
+  config,
+  endpoints: [nav],
+  rateLimiting: {
+    tiers: {
+      default: {
+        rateLimit1m: 1,
+      },
+    },
+  },
+})
+
+export const server = (): Promise<ServerInstance | undefined> => expose(adapter)