T

Is there a way to extract a procedure signature?

Is there a way to extract a procedure signature?

Zzomars

10/17/2023

I'm looking into extracting certain handlers into functions to keep certain procedures more manageable. Is there a way to define a function that expects the same signature as a procedure? Here's an example of what I'm trying to achieve.

No description

Nnlucas

10/17/2023

Best to keep it simple and request exactly what’s needed rather than coupling it to trpc. The code is more reusable that way

AKAlex / KATT 🐱

10/17/2023

i'd probably make it independent of trpc too - perhaps even extracting the zod schema of the input like

const schema = z.object({ foo: z.string() })

function myFn(opts: { 
  input: typeof schema['_output']
  user: { id: string }
}) {
 /// ..
}

export const adminRouter = router({
  toggleFeatureFlag: authedAdminProcedure.input(schema).mutation(async opts => {  })

const schema = z.object({ foo: z.string() })

function myFn(opts: { 
  input: typeof schema['_output']
  user: { id: string }
}) {
 /// ..
}

export const adminRouter = router({
  toggleFeatureFlag: authedAdminProcedure.input(schema).mutation(async opts => {  })

another useful pattern in cases like this where you want to pass data deeply is to use async local storage in node i use it for logging and making sure that all logs, no matter how deep, have correlation ids example:

import { AsyncLocalStorage } from 'node:async_hooks';

interface LogStore {
  correlationId: string;
  user: {
    id: string | null;
    email: string | null;
  } | null;
}
export const logStorage = new AsyncLocalStorage<LogStore>();

import { AsyncLocalStorage } from 'node:async_hooks';

interface LogStore {
  correlationId: string;
  user: {
    id: string | null;
    email: string | null;
  } | null;
}
export const logStorage = new AsyncLocalStorage<LogStore>();

and i have a HOC around my API requests to attach data to the storage you could potentially do an AdminStore, call adminStorge.run() in the authedAdminProcedure and then those things will just magically exist anywhere down the stack of those functions

Zzomars

10/18/2023

Some real wizardry in here Thanks 🙏

AKAlex / KATT 🐱

10/18/2023

Don't hesitate to reach out if you wanna pair on anything You got my cal ☺

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Is there a way to extract a procedure signature?

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Is there a way to extract a procedure signature?

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