- NestJS + TypeScript + Prisma + PostgreSQL 工程骨架 - 微信登录安全流程:服务端 code2Session 换 openid 后签发 JWT, session_key 缓存于 Redis,不信任前端 openid - 统一响应/异常处理、JWT 全局鉴权(@Public 豁免)、Swagger 文档 - Prisma 全量核心 schema(用户/分类/商品/设计清单/地址/订单/支付/上传/定制任务)+ seed - 业务模块空壳(商品/分类/设计清单/地址/订单/支付/上传/BullMQ 队列) - Docker 多阶段镜像 + 本地/生产 docker-compose - docs:密钥获取指南、COS SDK 移除记录 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
56 lines
1.9 KiB
TypeScript
56 lines
1.9 KiB
TypeScript
import { Inject, Injectable } from '@nestjs/common';
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import { ConfigService } from '@nestjs/config';
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import { JwtService } from '@nestjs/jwt';
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import { Redis } from 'ioredis';
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import { REDIS_CLIENT } from '../redis/redis.module';
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import { JwtPayload } from '../common/decorators/current-user.decorator';
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import { UsersService } from '../users/users.service';
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import { WechatService } from '../wechat/wechat.service';
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// session_key 在 Redis 的存储键与默认有效期(微信 session_key 约 30 天,这里保守用 7 天)
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const SESSION_KEY_TTL = 7 * 24 * 60 * 60;
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@Injectable()
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export class AuthService {
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constructor(
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private readonly wechat: WechatService,
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private readonly users: UsersService,
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private readonly jwt: JwtService,
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private readonly config: ConfigService,
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@Inject(REDIS_CLIENT) private readonly redis: Redis,
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) {}
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/**
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* 微信小程序登录核心流程:
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* 1. 用前端 code 调微信 code2Session 换 openid + session_key(不信任任何前端 openid)
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* 2. findOrCreate 用户
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* 3. session_key 存 Redis(供后续解密 encryptedData / phone)
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* 4. 签发自有 JWT 返回
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*/
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async login(code: string): Promise<{ accessToken: string }> {
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const session = await this.wechat.code2Session(code);
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const user = await this.users.findOrCreateByOpenid(session.openid, session.unionid);
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// 缓存 session_key,key 形如 wx:session:{userId}
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await this.redis.set(
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`wx:session:${user.id}`,
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session.sessionKey,
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'EX',
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SESSION_KEY_TTL,
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);
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const payload: JwtPayload = { sub: user.id, openid: user.openid };
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const accessToken = await this.jwt.signAsync(payload, {
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expiresIn: this.config.get<number>('jwt.expires'),
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});
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return { accessToken };
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}
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/** 取出缓存的 session_key(供解密小程序加密数据用) */
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async getSessionKey(userId: string): Promise<string | null> {
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return this.redis.get(`wx:session:${userId}`);
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}
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}
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