- 1
Install the PostHog CLI
RequiredInstall
posthog-cli
:npm install -g @posthog/cli - 2
Authenticate the PostHog CLI
RequiredTo authenticate the CLI, you can call the
login
command and follow the instructions:Terminalposthog-cli loginIf you are using the CLI in a CI/CD environment such as GitHub Actions, you can set environment variables to authenticate:
Environment Variable Description Source POSTHOG_CLI_ENV_ID
PostHog project ID Environment settings POSTHOG_CLI_TOKEN
Personal API key with error tracking write
scopeAPI key settings Use the
--host
option in subsequent commands to specify a different PostHog instance / or region. For EU users:Terminalposthog-cli --host https://eu.posthog.com [CMD] - 3
Output source maps for your framework
RequiredIf you're using React with Vite, you can enable source maps in your `vite.config.js` file.JavaScriptimport { defineConfig } from 'vite'import react from '@vitejs/plugin-react'export default defineConfig({plugins: [react()],build: {sourcemap: true,}})If you're using another build tool like webpack or Rollup, consult the documentation for your build tool to enable source maps.
- 4
Inject source map
RequiredOnce you've built your application and have bundled assets, inject the context required by PostHog to associate the maps with the served code.
Terminal# Inject metadata in files to resolve errorsposthog-cli sourcemap inject --directory ./path/to/assets Verify source map injection
CheckpointConfirm source map comments are presentConfirm that the served files are injected with the correct source map comment in production in dev tools.
JavaScript//# chunkId=0197e6db-9a73-7b91-9e80-4e1b7158db5c- 5
Upload source map
RequiredYou will then need to upload the modified assets to PostHog.
Terminal# Upload assets to posthogposthog-cli sourcemap upload --directory ./path/to/assets💡 Tip: You can use
--delete-after
option to clean up sourcemaps after uploading them.Serve injected assets
You must serve the injected assets in deployed production app. The injected metadata is used during error capture to identify the correct source map to use. We suggest you upload source maps right after your production build in CI.
If you serve a copy of the bundled assets as they were prior to running
posthog-cli sourcemap inject
, we won't be able to use the uploaded sourcemap to unminify or demangle your stack traces.
Upload source maps for React
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Upload source maps for Angular
You can configure Angular to generate source maps by adding the following to your angular.json file: Then, build your Angular application: Confirm that the source maps are generated in the dist/<your-app-name>/ directory. You should see a .js.map file for each JS bundle. Confirm that the served files are injected with the correct source map comment in production in dev tools: You should see a comment like this in your minified JS files, for example main-IX6K2QJM.js : Before proceeding…