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A Visual Studio Code extension that automatically discovers your tRPC AppRouter and shows all your routers, queries, mutations, and subscriptions in an interactive sidebar panel.

Please note that this extension is unofficial and is not affiliated with the tRPC team.

This project is about creating an ui to visualise your tRPC api. Here is their own description of tRPC:

tRPC allows you to easily build & consume fully typesafe APIs without schemas or code generation.ion.

I created this extension, because I wanted to learn how to create vscode extensions. During its creation, I encountered many problems, which I describe in How It Works.

• VS Code ≥ 1.109.0
• A project that uses tRPC with an exported AppRouter type, that's within a *.ts file :

  export type AppRouter = typeof appRouter;

Search for tRPC Explorer in the VS Code Extensions Marketplace, or install from the command line:

code --install-extension trpc-explorer

pnpm install


# for development usage
pnpm watch



# lint
pnpm lint
pnpm check-types



# build for production
pnpm packagee

Press F5 in VS Code to launch an Extension Development Host with the extension loaded.

If you encounter any issues or have suggestions for improvements, please submit an issue.

If you have a problem, make sure to send a copy of the logs, found in the "Output" panel under "tRPC Explorer".

This project is licensed under the MIT License.

• The type variable router has to be called AppRouter. Might in the future add paterns, but in every tRPC examples, it's called AppRouter, so it seemed like a good default.
• It uses a global regex of **/*.ts to find candidate files, which might not be the best way.
• It for the moment only support Zod schemas, more might be added later.

A test project is available in the example folder. It contains a simple tRPC server. To run it, execute the following commands:

cd example
pnpm installl

You can then use the extension in the root of the project, and it should automatically discover the AppRouter and show the API in the sidebar.

All technical details are documented in docs/HOW_IT_WORKS.md.