koa-passport实现本地验证

安装

yarn add koa-passport passport-local

先看下passport.js登录策略，判断用户和密码

const passport = require('koa-passport')
const LocalStrategy = require('passport-local').Strategy
const User = require('../../dbs/models/users')

passport.use(new LocalStrategy((username, password, done) => {
  User.findOne({username}, (err, user) => {
    if (err) return done(err)
    if (!user) return done(null, false, {message: '用户不存在'})
    if (user.password !== password) return done(null, false, {message: '密码错误'})
    return done(null, user)
  })
}))

passport.serializeUser((user, done) => {
  done(null, user)
})

passport.deserializeUser((user, done) => {
  done(null, user)
})

module.exports = passport

在入口中挂载passport

app.use(passport.initialize())
app.use(passport.session())

这时候passport策略配置完成

登录接口实现

router.post('/signin', async ctx => {
  return Passport.authenticate('local', (err, user, info, status) => {
    if (err) {
      ctx.body = {
        code:-1,
        msg:err
      }
    }else {
      if (user) {
        ctx.body = {
          code:0,
          msg:'登录成功',
          user
        }
        return ctx.login(user)
      } else {
        ctx.body = {
          code:1,
          msg:info
        }
      }
    }
  })(ctx)
})

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