import {initTRPC} from '@trpc/server';
import {IsNotEmpty} from 'class-validator';

import {wrap} from '@typeschema/class-validator';

class Schema {
  @IsNotEmpty()
  name!: string;
}
const schema = Schema;

const t = initTRPC.create();
const appRouter = t.router({
  hello: t.procedure
    .input(wrap(schema))
    .query(({input}) => `Hello, ${input.name}!`),
  //         ^? {name: string}
});

Use it directly or through @typeschema/main

Dependencies

• class-validator: Required for inference and validation (^0.14.1)

API

Inference

• Infer<TSchema>: Extracts the output type of a schema
• InferIn<TSchema>: Extracts the input type of a schema

Validation

• wrap(schema): Returns the wrapped schema with access to its operations
• validate(schema, data): Returns the validated data or a list of validation issues
• assert(schema, data): Returns the validated data or throws an AggregateError