Node analog interface to call the database to achieve the complete process

premise

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• Because the explanation is too complicated, this article uses code to demonstrate
• General idea
  • A page request interface, passing parameters
  • The interface receives the parameter and executes the specified function to call the database
  • The specified function receives the parameter and calls the database according to the parameter
  • Recall the completed database and return the retrieved result to the interface
  • The interface receives the parameters and executes the follow-up procedure (when accepting success, what is returned when accepting failure)
  • The page requesting the interface receives the data returned by the interface
  • Determine what parameters are returned and what function to perform based on the parameters

Code display

transfer

 this.$store.dispatch("login",this)

To interface

const actions = {
    async login(context,vm){
        const {data}= await axios.post("/ele/login",vm.adminForm)  //post请求
        if(data.ok ===1){
            context.commit("CHANGE_USERNAME",vm.adminForm.adminName)
        }else{
            vm.$message.error(data.msg)
        }
    }
};

interface

app.post("/login",(req,res)=>{  //登录

    db.findOne("adminList",{   //调用函数
        adminName,
        adminWord:md5(adminWord+"(*^(*&^(*&)")
    },function(err,info){
        if(err) tools.json(res);
        else{
            if(info){
                tools.json(res,1,"登陆成功");
            }else{
                tools.json(res,-1,"账号或密码错误");
            }
        }
    })
    


});

To the database

    findOne(collName,whereObj,cb){

        _connect(db=>{
            db.collection(collName).findOne(whereObj,cb);
        })
    },

Do n’t copy my code, just for reference, the code ca n’t run except the interface