feat: implement tracing package with OpenTelemetry and Pyroscope support

Co-Authored-By: [email protected] <[email protected]>

packages/tracing/package.json

@@ -1,16 +1,18 @@
 {
   "name": "@synapsecns/tracing",
   "version": "0.1.0",
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
-  "files": [
-    "dist"
-  ],
+  "description": "Tracing and profiling utilities for Synapse services",
+  "main": "dist/cjs/index.js",
+  "module": "dist/esm/index.js",
+  "types": "dist/types/index.d.ts",
+  "files": ["dist"],
+  "publishConfig": {
+    "access": "public"
+  },
   "scripts": {
-    "build": "tsc",
-    "clean": "rm -rf dist",
-    "test": "jest",
-    "lint": "eslint src --ext .ts"
+    "prepare": "rollup -c --bundleConfigAsCjs",
+    "build": "rollup -c --bundleConfigAsCjs",
+    "prepublish": "yarn build"
   },
   "dependencies": {
     "@opentelemetry/api": "1.8.0",
@@ -19,9 +21,18 @@
     "@pyroscope/nodejs": "^0.4.3",
     "@opentelemetry/sdk-metrics": "^1.22.0"
   },
+  "peerDependencies": {
+    "express": "^4.18.2"
+  },
   "devDependencies": {
+    "@rollup/plugin-commonjs": "^28.0.0",
+    "@rollup/plugin-json": "^6.1.0",
+    "@rollup/plugin-node-resolve": "^15.3.0",
+    "@rollup/plugin-terser": "^0.4.4",
+    "rollup": "^4.22.4",
+    "rollup-plugin-typescript2": "^0.36.0",
+    "typescript": "^5.3.3",
     "@types/node": "^20.0.0",
-    "typescript": "^5.0.0",
     "@types/jest": "^29.0.0",
     "jest": "^29.0.0",
     "ts-jest": "^29.0.0",

packages/tracing/rollup.config.js

@@ -0,0 +1,38 @@
+import typescript from 'rollup-plugin-typescript2'
+import { nodeResolve } from '@rollup/plugin-node-resolve'
+import commonjs from '@rollup/plugin-commonjs'
+import json from '@rollup/plugin-json'
+import terser from '@rollup/plugin-terser'
+
+import packageJson from './package.json'
+
+export default [
+  {
+    input: 'src/index.ts',
+    output: [
+      {
+        file: packageJson.main,
+        format: 'cjs',
+      },
+      {
+        file: packageJson.module,
+        format: 'esm',
+      },
+    ],
+    plugins: [
+      nodeResolve({
+        preferBuiltins: true,
+      }),
+      commonjs(),
+      json(),
+      typescript({
+        tsconfig: './tsconfig.json',
+        declaration: true,
+        declarationDir: './dist/types',
+        useTsconfigDeclarationDir: true,
+      }),
+      terser(),
+    ],
+    external: ['express', '@opentelemetry/api', '@opentelemetry/sdk-node', '@pyroscope/nodejs'],
+  },
+]

packages/tracing/tsconfig.json

@@ -1,13 +1,16 @@
 {
-  "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "outDir": "./dist",
-    "rootDir": "./src",
+    "target": "es2018",
+    "module": "esnext",
+    "lib": ["esnext", "dom"],
+    "declaration": true,
+    "declarationDir": "dist/types",
+    "outDir": "dist",
+    "strict": true,
     "esModuleInterop": true,
-    "allowJs": true,
-    "skipLibCheck": true,
-    "target": "ES2020",
-    "module": "CommonJS"
+    "moduleResolution": "node",
+    "skipLibCheck": true
   },
-  "include": ["src/**/*"]
+  "include": ["src"],
+  "exclude": ["node_modules", "dist"]
 }