chore(js): formatting with prettier

Dockerfile

@@ -392,7 +392,7 @@ RUN make install
 
 # Copy source and config
 COPY openfeature-provider/js/src ./src/
-COPY openfeature-provider/js/tsconfig.json openfeature-provider/js/tsdown.config.ts openfeature-provider/js/vitest.config.ts ./
+COPY openfeature-provider/js/tsconfig.json openfeature-provider/js/tsdown.config.ts openfeature-provider/js/vitest.config.ts openfeature-provider/js/prettier.config.cjs openfeature-provider/js/.prettierignore ./
 COPY openfeature-provider/js/Makefile ./
 
 # Copy WASM module

openfeature-provider/js/.prettierignore

@@ -0,0 +1,9 @@
+node_modules/
+dist/
+src/proto/
+.idea
+coverage/*
+*.log
+api/*
+CHANGELOG.md
+README.md

openfeature-provider/js/Makefile

@@ -42,6 +42,7 @@ install: $(INSTALL_STAMP) $(GEN_TS)
 build: $(BUILD_STAMP)
 
 test: $(WASM_ARTIFACT) $(INSTALL_STAMP) $(GEN_TS)
+	yarn format:check
 	yarn test --run --exclude='**/*.e2e.test.ts'
 
 test-e2e: $(WASM_ARTIFACT) $(INSTALL_STAMP) $(GEN_TS)

openfeature-provider/js/README.md

@@ -182,3 +182,11 @@ The package exports a browser ESM build that compiles the WASM via streaming and
 ## License
 
 See the root `LICENSE`.
+
+## Formatting
+
+Code is formatted using prettier, you can format all files by running
+
+```sh
+yarn format
+```

openfeature-provider/js/package.json

@@ -32,6 +32,8 @@
   "scripts": {
     "build": "tsdown",
     "dev": "tsdown --watch",
+    "format": "prettier --config prettier.config.cjs -w .",
+    "format:check": "prettier --config prettier.config.cjs -c .",
     "test": "vitest",
     "proto:gen": "rm -rf src/proto && mkdir -p src/proto && protoc --plugin=node_modules/.bin/protoc-gen-ts_proto --ts_proto_opt useOptionals=messages --ts_proto_opt esModuleInterop=true --ts_proto_out src/proto -Iproto api.proto messages.proto test-only.proto"
   },
@@ -41,11 +43,15 @@
   "devDependencies": {
     "@openfeature/core": "^1.9.0",
     "@openfeature/server-sdk": "^1.19.0",
+    "@spotify/prettier-config": "^15.0.0",
     "@types/debug": "^4",
     "@types/node": "^24.0.1",
     "@vitest/coverage-v8": "^3.2.4",
     "debug": "^4.4.3",
     "dotenv": "^17.2.2",
+    "eslint-config-prettier": "^8.8.0",
+    "eslint-plugin-prettier": "^4.2.1",
+    "prettier": "^2.8.8",
     "rolldown": "1.0.0-beta.38",
     "ts-proto": "^2.7.3",
     "tsdown": "latest",

openfeature-provider/js/prettier.config.cjs

@@ -0,0 +1,8 @@
+const baseConfig = require('@spotify/prettier-config');
+
+module.exports = {
+  ...baseConfig,
+  tabWidth: 2,
+  useTabs: false,
+  printWidth: 120,
+};

openfeature-provider/js/src/ConfidenceServerProviderLocal.e2e.test.ts

@@ -4,30 +4,29 @@ import { ConfidenceServerProviderLocal } from './ConfidenceServerProviderLocal';
 import { readFileSync } from 'node:fs';
 import { WasmResolver } from './WasmResolver';
 
-const {
-  JS_E2E_CONFIDENCE_API_CLIENT_ID,
-  JS_E2E_CONFIDENCE_API_CLIENT_SECRET,
-} = requireEnv('JS_E2E_CONFIDENCE_API_CLIENT_ID', 'JS_E2E_CONFIDENCE_API_CLIENT_SECRET');
+const { JS_E2E_CONFIDENCE_API_CLIENT_ID, JS_E2E_CONFIDENCE_API_CLIENT_SECRET } = requireEnv(
+  'JS_E2E_CONFIDENCE_API_CLIENT_ID',
+  'JS_E2E_CONFIDENCE_API_CLIENT_SECRET',
+);
 
 const moduleBytes = readFileSync(__dirname + '/../../../wasm/confidence_resolver.wasm');
 const module = new WebAssembly.Module(moduleBytes);
 const resolver = new WasmResolver(module);
 const confidenceProvider = new ConfidenceServerProviderLocal(resolver, {
   flagClientSecret: 'RxDVTrXvc6op1XxiQ4OaR31dKbJ39aYV',
   apiClientId: JS_E2E_CONFIDENCE_API_CLIENT_ID,
-  apiClientSecret: JS_E2E_CONFIDENCE_API_CLIENT_SECRET
+  apiClientSecret: JS_E2E_CONFIDENCE_API_CLIENT_SECRET,
 });
 
 describe('ConfidenceServerProvider E2E tests', () => {
-  beforeAll( async () => {
-
+  beforeAll(async () => {
     await OpenFeature.setProviderAndWait(confidenceProvider);
     OpenFeature.setContext({
       targetingKey: 'test-a', // control
     });
   });
 
-  afterAll(() => OpenFeature.close())
+  afterAll(() => OpenFeature.close());
 
   it('should resolve a boolean e2e', async () => {
     const client = OpenFeature.getClient();
@@ -87,24 +86,26 @@ describe('ConfidenceServerProvider E2E tests', () => {
 
   it('should resolve a flag with a sticky resolve', async () => {
     const client = OpenFeature.getClient();
-    const result = await client.getNumberDetails('web-sdk-e2e-flag.double', -1, { targetingKey: 'test-a', sticky: true });
-
+    const result = await client.getNumberDetails('web-sdk-e2e-flag.double', -1, {
+      targetingKey: 'test-a',
+      sticky: true,
+    });
+
     // The flag has a running experiment with a sticky assignment. The intake is paused but we should still get the sticky assignment.
     // If this test breaks it could mean that the experiment was removed or that the bigtable materialization was cleaned out.
     expect(result.value).toBe(99.99);
     expect(result.variant).toBe('flags/web-sdk-e2e-flag/variants/sticky');
     expect(result.reason).toBe('MATCH');
-
   });
 });
 
-function requireEnv<const N extends string[]>(...names:N): Record<N[number],string> {
+function requireEnv<const N extends string[]>(...names: N): Record<N[number], string> {
   return names.reduce((acc, name) => {
     const value = process.env[name];
-    if(!value) throw new Error(`Missing environment variable ${name}`)
+    if (!value) throw new Error(`Missing environment variable ${name}`);
     return {
       ...acc,
-      [name]: value
+      [name]: value,
     };
-  }, {}) as Record<N[number],string>;
-}
+  }, {}) as Record<N[number], string>;
+}