hwj-common-lib/auth.js

微信小程序云开发通用模块库，支持灵活的环境配置

const jwt = require('jsonwebtoken')
const { TOKEN_SECRET, TOKEN_EXPIRES_IN } = require('./env')
const { TokenError } = require('./error')

// 生成 token
function generateToken(payload) {
  return jwt.sign(payload, TOKEN_SECRET, { expiresIn: TOKEN_EXPIRES_IN })
}

// 验证 token
function verifyToken(token) {
  try {
    return jwt.verify(token, TOKEN_SECRET)
  } catch (error) {
    throw new TokenError('无效的token')
  }
}

// 身份验证中间件
async function auth(event) {
  const { token } = event

  if (!token) {
    throw new TokenError('缺少token')
  }

  try {
    const decoded = verifyToken(token)
    return {
      success: true,
      data: {
        userId: decoded.userId,
        openId: decoded.openId
      }
    }
  } catch (error) {
    throw new TokenError('token验证失败')
  }
}

module.exports = {
  generateToken,
  verifyToken,
  auth
}