T

How can I access the trpc context in zod's refine function?

How can I access the trpc context in zod's refine function?

Mmichaelschufi

5/7/2023

To do something like

create: myProcedure
    .input(myInputSchema.refine(async ({ slug }, ctx) => 
      slugDoesNotAlreadyExist(ctx.db, slug),
      {
        message: 'Slug already exists',
        path: ['slug'],
    }))
    .mutation(async ({ ctx, input }) => {
       return ctx.db.insert(...)
    }),

create: myProcedure
    .input(myInputSchema.refine(async ({ slug }, ctx) => 
      slugDoesNotAlreadyExist(ctx.db, slug),
      {
        message: 'Slug already exists',
        path: ['slug'],
    }))
    .mutation(async ({ ctx, input }) => {
       return ctx.db.insert(...)
    }),

Edit: It would allow for easier UX because I can use the existing validation code in the frontend to show the user the errors at the correct field.

Nnlucas

5/7/2023

You can’t, validators validate data in place and are generally 3rd party libs. You probably want a middleware after the input to then take the ID and check it exists

Mmichaelschufi

5/7/2023

Okay, thank you. I guess I'll do it on field change in the frontend then. I think that's better for UX anyway.

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How can I access the trpc context in zod's refine function?

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How can I access the trpc context in zod's refine function?

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