在JavaScript/TypeScript代码中集成Prisma ORM遇错误求助

背景 #

正在将纯JavaScript项目迁移至TypeScript并集成Prisma ORM，TypeScript文件运行正常，但JavaScript文件执行时报错。

配置与代码 #

tsconfig.json 配置 #

{    
  "compilerOptions": {      
    "target": "es6",       
    "module": "commonjs",       
    "sourceMap": true,       
    "outDir": "/src",       
    "strict": true,       
    "skipLibCheck": true,
    "declaration": true,
    "moduleResolution": "node",       
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true ,
    "experimentalDecorators": true,        
    "allowJs": true    
  },    
  "include": ["src/**/*"],
  "exclude": ["node_modules", ".vscode"]  
}

正常运行的TypeScript文件（type_dummy.ts） #

import { PrismaClient } from '@prisma/client'

const prisma = new PrismaClient()

main()

async function main() {
     const allUsers = await prisma.client.findMany()
      console.log(allUsers)
}

报错的JavaScript文件（java_dummy.js） #

const { PrismaClient } = require('@prisma/client')


uploadsripts.post("/test_prisma",(req,res)=>{
    
main().catch(e => {
    console.log(e);
})

    async function main() {
        const allUsers = await PrismaClient.client.findMany()
         console.log(allUsers)
   }
    

})

错误信息 #

0|server  | TypeError: Cannot destructure property 'name' of 'undefined' as it is undefined.
0|server  |     at normalizeSignal (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:3828:7)
0|server  |     at Array.map (<anonymous>)
0|server  |     at getSignals (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:3823:62)
0|server  |     at getSignalsByName (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:3855:47)
0|server  |     at ../../node_modules/.pnpm/human-signals@2.1.0/node_modules/human-signals/build/src/main.js (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:3864:25)
0|server  |     at __require (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:11:51)
0|server  |     at ../../node_modules/.pnpm/execa@5.1.1/node_modules/execa/lib/error.js (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:3906:29)
0|server  |     at __require (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:11:51)
0|server  |     at ../../node_modules/.pnpm/execa@5.1.1/node_modules/execa/index.js (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:4635:21)
0|server  |     at __require (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:11:51)
0|server  |     at Object.<anonymous> (/Users/abhishek/Documents/node/ec_node/node_modules/@prisma/client/runtime/index.js:20119:28)
0|server  |     at Module._compile (node:internal/modules/cjs/loader:1126:14)
0|server  |     at Object.Module._extensions..js (node:internal/modules/cjs/loader:1180:10)
0|server  |     at Module.load (node:internal/modules/cjs/loader:1004:32)
0|server  |     at Function.Module._load (node:internal/modules/cjs/loader:839:12)
0|server  |     at Module.require (node:internal/modules/cjs/loader:1028:19)

问题原因 #

JavaScript代码中直接通过PrismaClient.client.findMany()调用模型方法，未先实例化PrismaClient。Prisma要求必须创建客户端实例后才能访问对应的模型操作。

修复后的JavaScript代码 #

const { PrismaClient } = require('@prisma/client')

// 实例化PrismaClient
const prisma = new PrismaClient()

uploadsripts.post("/test_prisma", async (req, res) => {
    try {
        const allUsers = await prisma.client.findMany()
        console.log(allUsers)
        // 向客户端返回查询结果
        res.status(200).json(allUsers)
    } catch (e) {
        console.error(e);
        // 返回错误信息
        res.status(500).json({ error: e.message })
    }
})

额外注意 #

• 确保路由回调处理异步逻辑，使用async/await并正确捕获异常
• 及时给客户端返回响应，避免请求超时
• PrismaClient实例建议全局创建，避免重复实例化

内容的提问来源于stack exchange，提问作者Android Geek