smartcontractkit · mohamed-mehany · Sep 25, 2025 · Sep 11, 2025 · Sep 16, 2025 · Sep 17, 2025
diff --git a/.changeset/smooth-avocados-worry.md b/.changeset/smooth-avocados-worry.md
@@ -0,0 +1,5 @@
+---
+'@chainlink/deutsche-boerse-adapter': major
+---
+
+Adds first release of the Deutsche Boerse EA
diff --git a/.pnp.cjs b/.pnp.cjs
diff --git a/.yarn/cache/@bufbuild-buf-linux-x64-npm-1.57.0-f292389579-10.zip b/.yarn/cache/@bufbuild-buf-linux-x64-npm-1.57.0-f292389579-10.zip
diff --git a/.yarn/cache/@bufbuild-buf-npm-1.57.0-2ab3bfef25-3870772d73.zip b/.yarn/cache/@bufbuild-buf-npm-1.57.0-2ab3bfef25-3870772d73.zip
diff --git a/.yarn/cache/@bufbuild-protobuf-npm-2.7.0-79729124a9-3610b8da21.zip b/.yarn/cache/@bufbuild-protobuf-npm-2.7.0-79729124a9-3610b8da21.zip
diff --git a/.yarn/cache/@types-ws-npm-8.18.1-61dc106ff0-1ce05e3174.zip b/.yarn/cache/@types-ws-npm-8.18.1-61dc106ff0-1ce05e3174.zip
diff --git a/packages/sources/deutsche-boerse/CHANGELOG.md b/packages/sources/deutsche-boerse/CHANGELOG.md
diff --git a/packages/sources/deutsche-boerse/README.md b/packages/sources/deutsche-boerse/README.md
@@ -0,0 +1,3 @@
+# Chainlink External Adapter for deutsche-boerse
+
+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 deutsche-boerse`.
diff --git a/packages/sources/deutsche-boerse/buf.gen.yaml b/packages/sources/deutsche-boerse/buf.gen.yaml
@@ -0,0 +1,6 @@
+version: v2
+plugins:
+  - remote: buf.build/bufbuild/es
+    out: src/gen
+    opt:
+      - target=ts
diff --git a/packages/sources/deutsche-boerse/buf.yaml b/packages/sources/deutsche-boerse/buf.yaml
@@ -0,0 +1,3 @@
+version: v2
+modules:
+  - path: src/proto
diff --git a/packages/sources/deutsche-boerse/package.json b/packages/sources/deutsche-boerse/package.json
@@ -0,0 +1,48 @@
+{
+  "name": "@chainlink/deutsche-boerse-adapter",
+  "version": "0.0.0",
+  "description": "Chainlink deutsche-boerse adapter.",
+  "keywords": [
+    "Chainlink",
+    "LINK",
+    "blockchain",
+    "oracle",
+    "deutsche-boerse"
+  ],
+  "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 src/gen && rm -f tsconfig.tsbuildinfo",
+    "prepack": "yarn build",
+    "prebuild": "yarn buf generate",
+    "build": "tsc -b",
+    "server": "node -e 'require(\"./index.js\").server()'",
+    "server:dist": "node -e 'require(\"./dist/index.js\").server()'",
+    "start": "yarn server:dist"
+  },
+  "devDependencies": {
+    "@bufbuild/buf": "^1.57.0",
+    "@sinonjs/fake-timers": "9.1.2",
+    "@types/jest": "^29.5.14",
+    "@types/node": "22.14.1",
+    "@types/sinonjs__fake-timers": "8.1.5",
+    "@types/ws": "^8",
+    "nock": "13.5.6",
+    "typescript": "5.8.3"
+  },
+  "dependencies": {
+    "@bufbuild/protobuf": "^2.7.0",
+    "@chainlink/external-adapter-framework": "2.7.0",
+    "decimal.js": "10.5.0",
+    "tslib": "2.4.1",
+    "ws": "^8.18.3"
+  }
+}
diff --git a/packages/sources/deutsche-boerse/src/config/index.ts b/packages/sources/deutsche-boerse/src/config/index.ts
@@ -0,0 +1,15 @@
+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,
+  },
+  WS_API_ENDPOINT: {
+    description: 'WS endpoint for Data Provider',
+    type: 'string',
+    default: 'wss://md.deutsche-boerse.com',
+  },
+})
diff --git a/packages/sources/deutsche-boerse/src/endpoint/index.ts b/packages/sources/deutsche-boerse/src/endpoint/index.ts
@@ -0,0 +1 @@
+export { endpoint as lwba } from './lwba'
diff --git a/packages/sources/deutsche-boerse/src/endpoint/lwba.ts b/packages/sources/deutsche-boerse/src/endpoint/lwba.ts
@@ -0,0 +1,56 @@
+import { AdapterEndpoint } from '@chainlink/external-adapter-framework/adapter'
+import { InputParameters } from '@chainlink/external-adapter-framework/validation'
+import { config } from '../config'
+import { wsTransport } from '../transport/lwba'
+
+export const MARKETS = ['md-xetraetfetp'] as const
+export type Market = (typeof MARKETS)[number]
+
+export const inputParameters = new InputParameters(
+  {
+    isin: {
+      aliases: ['instrument', 'ISIN'],
+      required: true,
+      type: 'string',
+      description: 'The ISIN identifier of the instrument to query',
+    },
+    market: {
+      aliases: ['stream'],
+      required: true,
+      type: 'string',
+      description: 'The market identifier of the stream to query',
+      options: [...MARKETS],
+    },
+  },
+  [
+    {
+      market: 'md-xetraetfetp',
+      isin: 'IE00B53L3W79',
+    },
+  ],
+)
+
+interface LwbaLatestPriceResponse {
+  Result: number | null
+  Data: {
+    mid: number
+    bid: number
+    ask: number
+    latestPrice: number
+    quoteProviderIndicatedTimeUnixMs: number
+    tradeProviderIndicatedTimeUnixMs: number
+  }
+}
+
+export type BaseEndpointTypes = {
+  Parameters: typeof inputParameters.definition
+  Response: LwbaLatestPriceResponse
+  Settings: typeof config.settings
+}
+
+export const endpoint = new AdapterEndpoint({
+  name: 'lwba',
+  aliases: [],
+  transport: wsTransport,
+  inputParameters,
+})
Original file line number	Diff line number	Diff line change
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		# Chainlink External Adapter for deutsche-boerse

		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 deutsche-boerse`.