streamr-dev · mondoreale · Jan 23, 2026 · Jan 16, 2026 · Jan 16, 2026 · Jan 19, 2026
diff --git a/docs/docs/usage/sdk/how-to-use.md b/docs/docs/usage/sdk/how-to-use.md
@@ -38,7 +38,7 @@ Node.js `20` is the minimum required version, ideally version 22 and later. Node
 For usage in the browser include the latest build, e.g. by including a `<script>` tag pointing at a CDN:
 
 ```html
-<script src="https://unpkg.com/@streamr/sdk/streamr-sdk.web.js"></script>
+<script src="https://unpkg.com/@streamr/sdk/exports-umd.js"></script>
 ```
 
 #### Browser extension

diff --git a/package-lock.json b/package-lock.json
diff --git a/packages/browser-test-runner/package.json b/packages/browser-test-runner/package.json
@@ -50,6 +50,7 @@
     "rimraf": "^6.1.2",
     "rollup": "^4.55.1",
     "rollup-plugin-dts": "^6.3.0",
+    "ts-loader": "^9.5.4",
     "tsx": "^4.21.0",
     "webpack": "^5.103.0",
     "webpack-cli": "^6.0.1"

diff --git a/packages/sdk/README.md b/packages/sdk/README.md
@@ -41,7 +41,7 @@ The Streamr SDK is built for the browser and Node.js environments.
 
 **Browser (Website/WebApps)**
 - For usage in the browser include the latest build, e.g. by including a `<script>` tag pointing at a CDN:
-- `<script src="https://unpkg.com/@streamr/sdk@latest/streamr-sdk.web.min.js"></script>`
+- `<script src="https://unpkg.com/@streamr/sdk@latest/exports-umd.min.js"></script>`
 - To use within React, please see [streamr-client-react](https://github.com/streamr-dev/streamr-client-react)
 
 **Browser extension**

diff --git a/packages/sdk/bin/tsconfig.json b/packages/sdk/bin/tsconfig.json
@@ -1,5 +1,5 @@
 {
-  "extends": "..",
+  "extends": "../tsconfig.node.json",
   "include": [
     "**/*"
   ]

diff --git a/packages/sdk/createKarmaConfig.ts b/packages/sdk/createKarmaConfig.ts
@@ -0,0 +1,35 @@
+import {
+    createKarmaConfig as createKarmaConfigUtil,
+    createWebpackConfig,
+} from '@streamr/browser-test-runner'
+import { resolve } from 'node:path'
+
+export function createKarmaConfig(testPaths: string[]): ReturnType<typeof createKarmaConfigUtil> {
+    return createKarmaConfigUtil(
+        testPaths,
+        createWebpackConfig({
+            libraryName: 'sdk',
+            alias: {
+                '@jest/globals': resolve(
+                    __dirname,
+                    'test/test-utils/jestGlobalsMock.ts'
+                ),
+                '@streamr/dht': resolve(__dirname, '../dht/dist/exports-browser.cjs'),
+                '@': resolve(__dirname, 'src/_browser'),
+            },
+            fallback: {
+                v8: false,
+                module: false,
+            },
+            externals: {
+                http: 'HTTP',
+                ws: 'WebSocket',
+                'node-datachannel': 'commonjs node-datachannel',
+                express: 'Express',
+                'node:stream/web': 'stream/web',
+                'node:timers/promises': 'timers/promises',
+            },
+        }),
+        __dirname
+    )
+}
diff --git a/packages/sdk/fix-esm.sh b/packages/sdk/fix-esm.sh
diff --git a/packages/sdk/jest.config.ts b/packages/sdk/jest.config.ts
@@ -7,9 +7,12 @@ const config: Config.InitialOptions = {
     setupFilesAfterEnv: [
         ...defaultConfig.setupFilesAfterEnv,
         './src/setupTsyringe.ts',
-        './test/test-utils/customMatchers.ts',
+        './test/test-utils/setupCustomMatchers.ts',
         '@streamr/test-utils/setupCustomMatchers',
     ],
+    moduleNameMapper: {
+        "^@/(.*)$": "<rootDir>/src/_nodejs/$1",
+    },
 }
 
 export default config
diff --git a/packages/sdk/jest.setup.ts b/packages/sdk/jest.setup.ts
@@ -1,19 +1,22 @@
-// eslint-disable-next-line import/no-extraneous-dependencies
-import { GitRevisionPlugin } from 'git-revision-webpack-plugin'
+import { execSync } from 'child_process'
 import pkg from './package.json'
 
+const execGitCommand = (command: string): string => {
+    try {
+        return execSync(command, { encoding: 'utf8' }).trim()
+    } catch {
+        return ''
+    }
+}
+
 export default async function setup(): Promise<void> {
     if (process.env.GIT_VERSION) {
         return
     }
 
-    const gitRevisionPlugin = new GitRevisionPlugin()
-
-    const [GIT_VERSION, GIT_COMMITHASH, GIT_BRANCH] = await Promise.all([
-        gitRevisionPlugin.version(),
-        gitRevisionPlugin.commithash(),
-        gitRevisionPlugin.branch(),
-    ])
+    const GIT_VERSION = execGitCommand('git describe --always --tags')
+    const GIT_COMMITHASH = execGitCommand('git rev-parse HEAD')
+    const GIT_BRANCH = execGitCommand('git rev-parse --abbrev-ref HEAD')
 
     Object.assign(process.env, {
         version: pkg.version,

diff --git a/packages/sdk/karma-end-to-end.config.ts b/packages/sdk/karma-end-to-end.config.ts
@@ -1,4 +1,2 @@
-import webpackConfig from './webpack-karma.config'
-import { createKarmaConfig } from '@streamr/browser-test-runner'
-
-export default createKarmaConfig(['test/end-to-end/**/*.ts'], webpackConfig, __dirname)
+import { createKarmaConfig } from './createKarmaConfig'
+export default createKarmaConfig(['test/end-to-end/**/*.ts'])
diff --git a/packages/sdk/karma-integration.config.ts b/packages/sdk/karma-integration.config.ts
@@ -1,4 +1,2 @@
-import webpackConfig from './webpack-karma.config'
-import { createKarmaConfig } from '@streamr/browser-test-runner'
-
-export default createKarmaConfig(['test/integration/**/*.ts'], webpackConfig, __dirname)
+import { createKarmaConfig } from './createKarmaConfig'
+export default createKarmaConfig(['test/integration/**/*.ts'])
diff --git a/packages/sdk/karma-setup.js → packages/sdk/karma-setup.ts b/packages/sdk/karma-setup.js → packages/sdk/karma-setup.ts
@@ -3,8 +3,5 @@
  * package. See karma-config.js in that package for more details.
  */
 
-import './src/setupTsyringe.ts'
-import './test/test-utils/customMatchers'
-import { customMatchers } from '@streamr/test-utils'
-
-expect.extend(customMatchers)
+import './src/setupTsyringe'
+import './test/test-utils/setupCustomMatchers'
diff --git a/packages/sdk/karma-unit.config.ts b/packages/sdk/karma-unit.config.ts
@@ -1,4 +1,2 @@
-import webpackConfig from './webpack-karma.config'
-import { createKarmaConfig } from '@streamr/browser-test-runner'
-
-export default createKarmaConfig(['test/unit/**/*.ts'], webpackConfig, __dirname)
+import { createKarmaConfig } from './createKarmaConfig'
+export default createKarmaConfig(['test/unit/**/*.ts'])
diff --git a/packages/sdk/package.json b/packages/sdk/package.json
@@ -7,39 +7,43 @@
     "url": "git+https://github.com/streamr-dev/network.git",
     "directory": "packages/client"
   },
-  "types": "./dist/types/src/index.d.ts",
-  "main": "./dist/src/exports-commonjs.js",
-  "module": "./dist/src/exports-esm.mjs",
-  "script": "./dist/streamr-sdk.web.min.js",
-  "browser": {
-    "./src/utils/persistence/ServerPersistence.ts": "./src/utils/persistence/BrowserPersistence.mts",
-    "./dist/src/utils/persistence/ServerPersistence.js": "./dist/src/utils/persistence/BrowserPersistence.mjs"
-  },
+  "main": "./dist/exports-nodejs.cjs",
+  "module": "./dist/exports-nodejs.js",
+  "types": "./dist/exports-nodejs.d.ts",
+  "script": "./dist/exports-umd.min.js",
   "exports": {
-    "default": {
-      "types": "./dist/types/src/index.d.ts",
-      "import": "./dist/src/exports-esm.mjs",
-      "require": "./dist/src/exports-commonjs.js"
+    ".": {
+      "types": "./dist/exports-nodejs.d.ts",
+      "browser": {
+        "types": "./dist/exports-browser.d.ts",
+        "import": "./dist/exports-browser.js",
+        "require": "./dist/exports-browser.cjs",
+        "default": "./dist/exports-browser.js"
+      },
+      "node": "./dist/exports-nodejs.cjs",
+      "import": "./dist/exports-nodejs.js",
+      "require": "./dist/exports-nodejs.cjs",
+      "default": "./dist/exports-nodejs.js"
     }
   },
   "files": [
-    "dist",
+    "dist/exports-nodejs.*",
+    "dist/exports-browser.*",
+    "dist/exports-umd.*",
+    "dist/encryption/migrations",
     "!*.tsbuildinfo",
     "LICENSE",
     "README.md",
     "readme-header.png"
   ],
   "scripts": {
-    "prebuild": "node bin/generate-config-validator.js && ./proto.sh",
-    "postbuild": "./scripts/postbuild.sh && bash fix-esm.sh",
+    "prebuild": "npm run reset-self && node bin/generate-config-validator.js && ./proto.sh",
     "build": "tsc -b",
-    "build-browser": "npm run build-browser-development && npm run build-browser-production",
-    "build-browser-development": "NODE_ENV=development webpack --mode=development --progress",
-    "build-browser-production": "NODE_ENV=production webpack --mode=production --progress",
+    "postbuild": "NODE_OPTIONS='--import tsx' rollup -c rollup.config.mts",
     "check": "tsc -b tsconfig.jest.json",
+    "reset-self": "rimraf --glob 'dist/**/*.tsbuildinfo'",
     "clean": "jest --clearCache --config '{}' || true; rm -rf dist src/generated *.tsbuildinfo node_modules/.cache || true",
     "eslint": "eslint --cache --cache-location=node_modules/.cache/.eslintcache/ '*/**/*.{js,ts,mts}'",
-    "generate-protoc-code": "./proto.sh",
     "test": "npm run test-unit && npm run test-integration && npm run test-end-to-end",
     "test-unit": "jest --useStderr --forceExit test/unit",
     "test-integration": "jest --bail --useStderr --forceExit --testTimeout=40000 test/integration/*.test.*",
@@ -53,47 +57,34 @@
   "author": "Streamr Network AG <contact@streamr.network>",
   "license": "Apache-2.0",
   "devDependencies": {
-    "@babel/core": "^7.28.5",
-    "@babel/plugin-proposal-decorators": "^7.28.0",
-    "@babel/plugin-transform-modules-commonjs": "^7.27.1",
-    "@babel/plugin-transform-runtime": "^7.28.5",
-    "@babel/preset-env": "^7.28.5",
-    "@babel/preset-typescript": "^7.28.5",
     "@jest/globals": "^30.0.5",
+    "@rollup/plugin-alias": "^6.0.0",
+    "@rollup/plugin-commonjs": "^29.0.0",
+    "@rollup/plugin-json": "^6.1.0",
+    "@rollup/plugin-node-resolve": "^16.0.3",
+    "@rollup/plugin-terser": "^0.4.4",
     "@streamr/test-utils": "103.2.0-experiment.1",
     "@types/heap": "^0.2.35",
     "@types/lodash": "^4.17.21",
     "ajv": "^8.17.1",
     "ajv-formats": "^3.0.1",
-    "babel-loader": "^10.0.0",
-    "babel-plugin-add-module-exports": "^1.0.4",
-    "babel-plugin-transform-typescript-metadata": "^0.4.0",
     "benchmark": "^2.1.4",
     "buffer": "^6.0.3",
     "bytes": "^3.1.1",
-    "chromedriver": "^121.0.2",
-    "crypto-browserify": "^3.12.1",
     "express": "^5.2.0",
-    "git-revision-webpack-plugin": "^5.0.0",
     "jest-leak-detector": "^27.3.1",
     "jest-matcher-utils": "^30.0.5",
-    "lodash-webpack-plugin": "^0.11.6",
     "nightwatch": "^3.12.3",
-    "node-polyfill-webpack-plugin": "^4.1.0",
-    "terser-webpack-plugin": "^5.3.14",
-    "ts-loader": "^9.5.4",
+    "rimraf": "^6.1.2",
+    "rollup": "^4.55.1",
+    "rollup-plugin-copy": "^3.5.0",
+    "rollup-plugin-dts": "^6.3.0",
     "ts-node": "^10.9.2",
+    "tsx": "^4.21.0",
     "util": "^0.12.4",
-    "weak-napi": "^2.0.2",
-    "webpack": "^5.103.0",
-    "webpack-bundle-analyzer": "^5.0.1",
-    "webpack-cli": "^6.0.1",
-    "webpack-merge": "^6.0.1"
+    "weak-napi": "^2.0.2"
   },
-  "#IMPORTANT": "babel-runtime must be in dependencies, not devDependencies",
   "dependencies": {
-    "@babel/runtime": "^7.28.4",
-    "@babel/runtime-corejs3": "^7.28.4",
     "@noble/post-quantum": "^0.4.1",
     "@protobuf-ts/runtime": "^2.8.2",
     "@protobuf-ts/runtime-rpc": "^2.8.2",
@@ -103,7 +94,6 @@
     "@streamr/proto-rpc": "103.2.0-experiment.1",
     "@streamr/trackerless-network": "103.2.0-experiment.1",
     "@streamr/utils": "103.2.0-experiment.1",
-    "core-js": "^3.47.0",
     "env-paths": "^2.2.1",
     "ethers": "^6.13.0",
     "eventemitter3": "^5.0.0",
@@ -113,9 +103,11 @@
     "p-limit": "^3.1.0",
     "p-memoize": "4.0.4",
     "p-throttle": "4.1.1",
+    "readable-stream": "^4.7.0",
     "reflect-metadata": "^0.2.1",
     "sqlite": "^5.1.1",
     "sqlite3": "^5.1.7",
+    "timers-browserify": "^2.0.12",
     "ts-essentials": "^10.1.1",
     "ts-toolbelt": "^9.6.0",
     "tsyringe": "^4.10.0",