tRPC doesn't support redirect

Bbackbone

3/13/2023

I use tRPC & @trpc/server/adapters/express. procdure.query({ctx: { res }} => { res.redirect('xxx') }) this will stop node process and some errors like: Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client. But if I just use expressjs，it does not happen.

Nnlucas

3/13/2023

You shouldn't do this, tRPC is not a http server, it's an abstraction which can (but doesn't have to) live inside one If you want redirects, do it on the frontend in response to state changes, or use a http server for those endpoints

Bbackbone

3/14/2023

I see here https://github.com/trpc/trpc/discussions/997 I will try to solve it like 1. express router + tRPC caller 2. try catch in trpc procedure that redirect It works well using the first method. The NO.2 remains the same error too.

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