Return data from query as Readonly

@trpc/server✅Solved

I want to prevent my client code from mutating response data without manually repeating the procedure's returned value type manually.
How can I easily achieve this?
E.g.

const myRouter = router({
  getData: publicBaseProcedure.query(() => ({
    foo: "bar"
  }))
})

const myRouter = router({
  getData: publicBaseProcedure.query(() => ({
    foo: "bar"
  }))
})

Solution

Just found the solution:

const myRouter = router({
  getData: publicBaseProcedure.query(() => ({
    foo: "bar"
  } as const))
})

const myRouter = router({
  getData: publicBaseProcedure.query(() => ({
    foo: "bar"
  } as const))
})

Jump to solution

tRPC•7d ago•

3 replies

functiondj

Return data from query as Readonly

@trpc/server✅Solved

I want to prevent my client code from mutating response data without manually repeating the procedure's returned value type manually.
How can I easily achieve this?
E.g.

const myRouter = router({
  getData: publicBaseProcedure.query(() => ({
    foo: "bar"
  }))
})

const myRouter = router({
  getData: publicBaseProcedure.query(() => ({
    foo: "bar"
  }))
})

Solution

Just found the solution:

const myRouter = router({
  getData: publicBaseProcedure.query(() => ({
    foo: "bar"
  } as const))
})

const myRouter = router({
  getData: publicBaseProcedure.query(() => ({
    foo: "bar"
  } as const))
})

Jump to solution

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Return data from query as Readonly

Return data from query as Readonly

Continue the conversation

tRPC

Continue the conversation

tRPC

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