71 lines
2.0 KiB
TypeScript
71 lines
2.0 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
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import { Prisma } from "@prisma/client";
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import { prisma } from "@/lib/prisma";
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export class ApiError extends Error {
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constructor(
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message: string,
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public status: number = 400,
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) {
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super(message);
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this.name = "ApiError";
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}
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}
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/**
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* Validates that value is a non-empty string; throws 401 otherwise.
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* Used for room routes where anonymous users pass userId in body.
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* For registered-user routes, prefer getAuthUserId() from lib/auth.
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*/
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export function requireUserId(value: unknown): string {
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if (!value || typeof value !== "string") {
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throw new ApiError("请先登录", 401);
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}
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return value;
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}
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/** Finds user by ID; throws 404 if not found. */
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export async function requireUser(userId: string) {
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const user = await prisma.user.findUnique({ where: { id: userId } });
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if (!user) throw new ApiError("用户不存在", 404);
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return user;
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}
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type RouteContext = { params: Promise<Record<string, string>> };
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type RouteHandler = (
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req: NextRequest,
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ctx: RouteContext,
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) => Promise<NextResponse>;
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/**
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* Wraps a Next.js route handler with unified error handling.
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* - ApiError instances are converted to JSON responses with matching status codes
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* - Unknown errors are logged and returned as 500
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*/
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export function apiHandler(handler: RouteHandler): RouteHandler {
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return async (req, ctx) => {
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try {
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return await handler(req, ctx);
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} catch (e) {
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if (e instanceof ApiError) {
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return NextResponse.json({ error: e.message }, { status: e.status });
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}
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if (
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e instanceof Prisma.PrismaClientKnownRequestError &&
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e.code === "P2002"
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) {
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return NextResponse.json(
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{ error: "该记录已存在或值已被占用" },
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{ status: 409 },
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);
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}
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console.error(`[API ${req.method} ${req.nextUrl.pathname}]`, e);
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return NextResponse.json(
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{ error: "操作失败，请稍后重试" },
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{ status: 500 },
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);
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}
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};
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}
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