fix!: Change to ES Modules to improve support of dynamic loading (#1011)

Author: jsonbailey

packages/ai-providers/server-ai-langchain/jest.config.js renamed to packages/ai-providers/server-ai-langchain/jest.config.cjs

@@ -7,17 +7,33 @@
     "type": "git",
     "url": "https://github.com/launchdarkly/js-core.git"
   },
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
-  "type": "commonjs",
+  "main": "./dist/index.cjs",
+  "module": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "type": "module",
+  "exports": {
+    ".": {
+      "require": {
+        "types": "./dist/index.d.cts",
+        "default": "./dist/index.cjs"
+      },
+      "import": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.js"
+      }
+    }
+  },
   "scripts": {
-    "build": "npx tsc",
+    "build": "tsup-node",
     "lint": "npx eslint . --ext .ts",
     "prettier": "prettier --write '**/*.@(js|ts|tsx|json|css)' --ignore-path ../../../.prettierignore",
     "lint:fix": "yarn run lint --fix",
     "check": "yarn prettier && yarn lint && yarn build && yarn test",
     "test": "jest"
   },
+  "files": [
+    "dist"
+  ],
   "keywords": [
     "launchdarkly",
     "ai",
@@ -27,6 +43,7 @@
   "author": "LaunchDarkly",
   "license": "Apache-2.0",
   "devDependencies": {
+    "@langchain/community": "^0.3.0",
     "@langchain/core": "^0.3.0",
     "@launchdarkly/server-sdk-ai": "^0.14.1",
     "@trivago/prettier-plugin-sort-imports": "^4.1.1",
@@ -44,9 +61,11 @@
     "langchain": "^0.3.0",
     "prettier": "^3.0.0",
     "ts-jest": "^29.1.1",
+    "tsup": "^8.5.1",
     "typescript": "5.1.6"
   },
   "peerDependencies": {
+    "@langchain/community": "^0.2.0 || ^0.3.0",
     "@langchain/core": "^0.2.0 || ^0.3.0",
     "@launchdarkly/server-sdk-ai": "^0.14.0",
     "langchain": "^0.2.0 || ^0.3.0"

packages/ai-providers/server-ai-langchain/package.json

@@ -1,5 +1,5 @@
 {
   "extends": "./tsconfig.json",
-  "include": ["/**/*.ts"],
+  "include": ["**/*.ts", "**/*.js"],
   "exclude": ["node_modules"]
 }

packages/ai-providers/server-ai-langchain/tsconfig.eslint.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "target": "ES2020",
-    "module": "CommonJS",
+    "module": "ES2020",
     "lib": ["ES2020"],
     "moduleResolution": "node",
     "esModuleInterop": true,

packages/ai-providers/server-ai-langchain/tsconfig.json

@@ -0,0 +1,14 @@
+// It is a dev dependency and the linter doesn't understand.
+// eslint-disable-next-line import/no-extraneous-dependencies
+import { defineConfig } from 'tsup';
+
+export default defineConfig({
+  entry: {
+    index: 'src/index.ts',
+  },
+  format: ['esm', 'cjs'],
+  splitting: false,
+  sourcemap: true,
+  clean: true,
+  dts: true,
+});

packages/ai-providers/server-ai-langchain/tsup.config.ts

@@ -7,17 +7,33 @@
     "type": "git",
     "url": "https://github.com/launchdarkly/js-core.git"
   },
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
-  "type": "commonjs",
+  "main": "./dist/index.cjs",
+  "module": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "type": "module",
+  "exports": {
+    ".": {
+      "require": {
+        "types": "./dist/index.d.cts",
+        "default": "./dist/index.cjs"
+      },
+      "import": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.js"
+      }
+    }
+  },
   "scripts": {
-    "build": "npx tsc",
+    "build": "tsup-node",
     "lint": "npx eslint . --ext .ts",
     "prettier": "prettier --write '**/*.@(js|ts|tsx|json|css)' --ignore-path ../../../.prettierignore",
     "lint:fix": "yarn run lint --fix",
     "check": "yarn prettier && yarn lint && yarn build && yarn test",
     "test": "jest"
   },
+  "files": [
+    "dist"
+  ],
   "keywords": [
     "launchdarkly",
     "ai",
@@ -44,6 +60,7 @@
     "openai": "^6.0.0",
     "prettier": "^3.0.0",
     "ts-jest": "^29.1.1",
+    "tsup": "^8.5.1",
     "typescript": "5.1.6"
   },
   "peerDependencies": {

packages/ai-providers/server-ai-openai/jest.config.js renamed to packages/ai-providers/server-ai-openai/jest.config.cjs

@@ -1,5 +1,5 @@
 {
   "extends": "./tsconfig.json",
-  "include": ["/**/*.ts"],
+  "include": ["**/*.ts", "**/*.js"],
   "exclude": ["node_modules"]
 }

packages/ai-providers/server-ai-openai/package.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "target": "ES2020",
-    "module": "CommonJS",
+    "module": "ES2020",
     "lib": ["ES2020"],
     "moduleResolution": "node",
     "esModuleInterop": true,

packages/ai-providers/server-ai-openai/tsconfig.eslint.json

@@ -0,0 +1,14 @@
+// It is a dev dependency and the linter doesn't understand.
+// eslint-disable-next-line import/no-extraneous-dependencies
+import { defineConfig } from 'tsup';
+
+export default defineConfig({
+  entry: {
+    index: 'src/index.ts',
+  },
+  format: ['esm', 'cjs'],
+  splitting: false,
+  sourcemap: true,
+  clean: true,
+  dts: true,
+});