Contract-first APIs

import { eoc, ORPCTaggedError } from "effect-orpc";
import * as z from "zod";

class UserNotFoundError extends ORPCTaggedError("UserNotFoundError", {
  code: "NOT_FOUND",
  status: 404,
  schema: z.object({ id: z.string() }),
}) {}

export const contract = {
  users: {
    get: eoc
      .errors({ UserNotFoundError })
      .input(z.object({ id: z.string() }))
      .output(z.object({ id: z.string(), name: z.string() })),
  },
};

import { implementEffect } from "effect-orpc";

const oe = implementEffect(contract, UsersRepo.Default);

export const router = oe.router({
  users: {
    get: oe.users.get.effect(function* ({ input }) {
      const user = yield* UsersRepo.findById(input.id);
      if (!user)
        return yield* new UserNotFoundError({ data: { id: input.id } });
      return user;
    }),
  },
});