Parses and validates the incoming JSON request body using the specified schema.

use-request.ts

import { getContext } from "hono/context-storage";
import type z from "zod";
import { SignInRequest } from "../features/auth/sign-in-handler";
import { SignUpRequest } from "../services/auth/auth-service";
import type { SoEasyEnv } from "../types";

export const Schemas = {
  signIn: SignInRequest.schema,
  signUp: SignUpRequest.schema,
} as const;

type SchemaMap = typeof Schemas;
type SchemaKey = keyof SchemaMap;
type SchemaOutput<K extends SchemaKey> = z.infer<SchemaMap[K]>;

/**
 * Parses and validates the incoming JSON request body using the specified schema.
 *
 * @template K - The key of the schema to use for validation.
 * @param schemaName - The name of the schema to use for parsing and validation.
 * @returns A promise that resolves to the parsed and validated data conforming to the specified schema.
 * @throws If the request body does not conform to the schema.
 */
export async function useRequest<K extends SchemaKey>(schemaName: K): Promise<SchemaOutput<K>> {
  const data = await getContext<SoEasyEnv>().req.json();
  const schema = Schemas[schemaName];
  return schema.parse(data);
}