How to testing api routes

[lionelB]

Hello,

I have a bunch of api routes (ex: /routes/api/endpoint/+server.ts) and I cant find a way to test that.
Is there a recommanded / documented way to do that. I don't find litterature about that.
Do you have some tips to share ?
thanks

ps : It would be awesome that testing is also present in documentation.

[stephane-vanraes]

To test API Routes you can use testing suite that allows to make fetch requests.

Personally I just use Postman because it allows me to easily set headers, group the tests, inspect the results and run them together (and with a simple switch change targets from localhost to a remote server)

[lionelB]

thanks for the reply. I realised it was not clear, I was talking about automated tests (using vitest, jest or other test runner)

[eltigerchino]

Here's an example repo using Playwright that tests an endpoint:
https://stackblitz.com/github/s3812497/sveltekit-playwright

You can run the tests with npm run test or pnpm test. The test is stored in /tests/test.ts.

More example tests available in this very repository! https://github.com/sveltejs/kit/blob/master/packages/kit/test/apps/basics/test/server.test.js