RudderTyper

Use RudderTyper to generate native clients for your tracking plans.
Available Plans
  • starter
  • growth
  • enterprise

RudderTyper is a tool that lets you generate strongly-typed RudderStack analytics library wrappers based on your tracking plan. It uses an event from your specified tracking plan and generates an analytics call in the supported languages.

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RudderStack recommends using a stable version of RudderTyper (v1.x) for the latest Tracking Plans support.

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RudderTyper in action

How RudderTyper works

  1. RudderTyper generates type-safe SDK code from a tracking plan by parsing it to understand the events and data types.
  2. It then creates platform-specific classes and methods that match the tracking plan, ensuring that only valid events and properties are used.
  3. Finally, it integrates this code into the SDKs and provides compile-time checks to catch any errors and ensure consistency in the tracking implementation.
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RudderTyper currently generates native clients for the following SDKs:

Key features

  • Displays compile-time errors and warns you about any missing required properties, data mismatch, and any issues in the JSON schema configured in your tracking plan.
  • Lets you contextualize your analytics instrumentation and validate it with your event spec before deploying it to production.
  • Lets you access and validate your event names, properties, types, etc.

Prerequisites

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For production use cases, RudderStack recommends using a service access token instead of personal access token.

Get started

Run the following command to create a ruddertyper.yml file and generate your first client with the specified configuration details:

$ npx rudder-typer init | initialize | quickstart

The above command also generates a plan.json file containing your tracking plan spec.

Troubleshooting

  • If you get an error during the setup process, run the following commands to clear your cache and local storage:
npm cache clean --force
rm -r ~/.ruddertyper
  • If you get a “Your workspace does not have any Tracking Plans” error during the setup, verify that your RudderTyper client is on a stable version (v1.x).

Other commands

Command
Description
Help

$ npx rudder-typer help
Prints the help message describing different commands available with RudderTyper.
Update plan

$ npx rudder-typer update | u | *   (default)
Syncs plan.json with RudderStack to pull the latest changes from your tracking plan and generates an updated development client.
Build development client

$ npx rudder-typer build | b | d | dev | development
Generates a development client from plan.json.
Build production client

$ npx rudder-typer prod | p | production
Generates a production client from plan.json without runtime validation .
Print token configuration

$ npx rudder-typer token | tokens | t
Prints the local RudderStack API token configuration.
Print RudderTyper version

$ npx rudder-typer version
Prints the RudderTyper CLI version.

CLI arguments

Run the help command (npx rudder-typer help) to get the below list of CLI arguments that you can use with RudderTyper:

ArgumentDescription
configOptional path to a ruddertyper.yml (or a directory with ruddertyper.yml).
debugOptional (hidden) flag to turn on/off debug mode.
version / vPrints the RudderTyper CLI version.
help / hPrints help on a command.

Configuration reference

RudderTyper stores its configuration in a ruddertyper.yml file in the root of your repository.

A sample configuration looks like the following:

# RudderStack RudderTyper configuration reference (https://github.com/rudderlabs/rudder-typer)
# Run `npx rudder-typer` to regenerate a client with the latest versions of these events.

scripts:
  # You can supply a RudderStack service access token using a `scripts.token` command. The output of `script.token` command should be a valid RudderStack API token.
  token: source .env; echo $RUDDERTYPER_TOKEN

  # You can supply the email address linked to your workspace using a `scripts.email` command.The output of `script.email` command should be an email address registered with your workspace.
  email: source .env; echo $EMAIL

  # You can format any of RudderTyper's auto-generated files using a `scripts.after` command.
  # See `Formatting Generated Files` below.
  after: ./node_modules/.bin/prettier --write analytics/plan.json

client:
  # The RudderStack SDK you are generating the client for
  # Valid values: analytics.js, analytics-node, analytics-ios, analytics-android.
  sdk: analytics.js

  # The target language for your RudderTyper client.
  # Valid values: javascript, typescript, objective-c, swift, java.
  language: typescript

  # JavaScript Transpilation Settings
  # Valid values: 'ES3','ES5','ES2015','ES2016','ES2017','ES2018','ES2019','ESNext','Latest'
  scriptTarget: "ES5"

  # Valid values: 'CommonJS','AMD','UMD','System','ES2015','ESNext'
  moduleTarget: "ESNext"

trackingPlans:
  # The RudderStack Tracking Plan that you are generating a client for.
  # Provide your workspace slug and Tracking Plan id
  # You also need to supply a path to a directory to save your RudderTyper client.
  - id: <TRACKING_PLAN_ID>
    workspaceSlug: rudderstack-demo
    path: ./analytics

    # Valid values: v1 (old tracking plan), v2 (new tracking plan format)
    APIVersion: v2

Note the following:

  • Store token and email in a .env file created in the same directory as ruddertyper.yml to ensure the scripts automatically use these values. A sample .env file is shown below:
RUDDERTYPER_TOKEN: <SERVICE_ACCESS_TOKEN>
EMAIL: alex@example.com
  • You can get the id field by going to the tracking plan in the RudderStack dashboard. For example, https://app.rudderstack.com/trackingPlans/<TRACKING_PLAN_ID>.

Integrate RudderTyper client

This section includes the steps to integrate your RudderTyper-generated client with your app across different RudderStack SDKs.

Contribute

  • To submit a bug report or feature request, file an issue here.
  • To build on a RudderTyper feature or propose support for a new language, see the contributor’s documentation.

References



Questions? Contact us by email or on Slack