fix publish issue

This commit is contained in:
Robert Soriano
2022-05-19 01:20:47 -07:00
parent 31cde3e8a2
commit c7ac9ee09d
21 changed files with 839 additions and 0 deletions

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## Authorization
The `createContext`-function is called for each incoming request so here you can add contextual information about the calling user from the request object.
### Create context from request headers
```ts
// ~/server/trpc/index.ts
import type { inferAsyncReturnType } from '@trpc/server'
import type { CompatibilityEvent } from 'h3'
import { decodeAndVerifyJwtToken } from '~/somewhere/in/your/app/utils'
// The app's context - is generated for each incoming request
export async function createContext({ req }: CompatibilityEvent) {
// Create your context based on the request object
// Will be available as `ctx` in all your resolvers
// This is just an example of something you'd might want to do in your ctx fn
async function getUserFromHeader() {
if (req.headers.authorization) {
const user = await decodeAndVerifyJwtToken(req.headers.authorization.split(' ')[1])
return user
}
return null
}
const user = await getUserFromHeader()
return {
user,
}
}
type Context = inferAsyncReturnType<typeof createContext>
// [..] Define API handler and app router
```
### Option 1: Authorize using resolver
```ts
import { TRPCError } from '@trpc/server'
export const router = trpc
.router<Context>()
// open for anyone
.query('hello', {
input: z.string().nullish(),
resolve: ({ input, ctx }) => {
return `hello ${input ?? ctx.user?.name ?? 'world'}`
},
})
// checked in resolver
.query('secret', {
resolve: ({ ctx }) => {
if (!ctx.user)
throw new TRPCError({ code: 'UNAUTHORIZED' })
return {
secret: 'sauce',
}
},
})
```
### Option 2: Authorize using middleware
```ts
import * as trpc from '@trpc/server'
import { TRPCError } from '@trpc/server'
// Merging routers: https://trpc.io/docs/merging-routers
export const router = trpc
.router<Context>()
// this is accessible for everyone
.query('hello', {
input: z.string().nullish(),
resolve: ({ input, ctx }) => {
return `hello ${input ?? ctx.user?.name ?? 'world'}`
},
})
.merge(
'admin.',
trpc.router<Context>()
// this protects all procedures defined next in this router
.middleware(async ({ ctx, next }) => {
if (!ctx.user?.isAdmin)
throw new TRPCError({ code: 'UNAUTHORIZED' })
return next()
})
.query('secret', {
resolve: ({ ctx }) => {
return {
secret: 'sauce',
}
},
}),
)
```
Learn more about authorization [here](https://trpc.io/docs/authorization).

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## Error Formatting
The error formatting in your router will be inferred all the way to your client (& Vue components).
### Adding custom formatting
```ts
// ~/server/trpc/index.ts
import * as trpc from '@trpc/server'
export const router = trpc.router<Context>()
.formatError(({ shape, error }) => {
return {
...shape,
data: {
...shape.data,
zodError:
error.code === 'BAD_REQUEST'
&& error.cause instanceof ZodError
? error.cause.flatten()
: null,
}
}
})
```
### Usage in Vue
```html
<script setup lang="ts">
const { error } = await useAsyncQuery(['getUser', { id: 69 }])
</script>
<template>
<pre v-if="error?.data?.zodError">
{{ JSON.stringify(error.data.zodError, null, 2) }}
</pre>
</template>
```
Learn more about error formatting [here](https://trpc.io/docs/error-formatting).

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## Handling errors
All errors that occur in a procedure go through the `onError` method before being sent to the client. Here you can handle or change errors.
```ts
// ~/server/trpc/index.ts
import * as trpc from '@trpc/server'
export function onError({ error, type, path, input, ctx, req }) {
console.error('Error:', error)
if (error.code === 'INTERNAL_SERVER_ERROR') {
// send to bug reporting
}
}
```

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## Validation
tRPC works out-of-the-box with yup/superstruct/zod/myzod/custom validators.
### Input Validation
```ts
// ~/server/trpc/index.ts
import { z } from 'zod'
export const router = trpc
.router()
.mutation('createUser', {
// validate input with Zod
input: z.object({
name: z.string().min(5)
}),
async resolve(req) {
// use your ORM of choice
return await UserModel.create({
data: req.input,
})
},
})
```
### Output Validation
```ts
// ~/server/trpc/index.ts
import { z } from 'zod'
export const router = trpc
.router()
.query('hello', {
// validate output with Zod
output: z.object({
greeting: z.string()
}),
// expects return type of { greeting: string }
resolve() {
return {
greeting: 'hello!',
}
},
})
```
Learn more about input validation [here](https://trpc.io/docs/router#input-validation).