[mock data] fastmock dynamically returns the mock content according to the incoming parameters

The general logic in a project is , The front end initiates a request , The back end receives parameters , After logical processing, the data is returned to the front end . in other words , What data is returned by the back end depends on what data is passed by the front end , therefore ,mock Data time , Dead data have great limitations .fastmock Provides a solution , It supports obtaining data from the request and then returning the corresponding response information .

fastmock The following four types of data are supported ：

• restful Link parameters ： Such as /user/1, The corresponding data is {id: 1}, The acquisition method is _req.params.id

• query Query parameters ： Such as /user?username=Amour, The acquisition method is _req.query.username. Commonly used in get request

• body Request body data ： Parameter in request body in , The acquisition method is _req.body.key. Commonly used in post request

• headers Header information ： The acquisition method is _req.headers.key. The common scenario is the interface token verification , The acquisition method is _req.headers.token

Usage method

In the original json Based on the data , The value that needs to be returned dynamically is not a specific value or mock The rules , It's a function , Function takes two parameters , Namely _req and Mock（ The variable name cannot be changed ）

{
    //  The two parameters are expressed in {} Wrapped , Don't leave out , Otherwise, an error will be reported 
    "username":function({_req,Mock}){
         from _req The value of 
         Logical processing 
        ......
         Return the data 
    }
}

function Parameter description

  Here's a simple example

stay fastmock Create interface in , The interface contents are as follows ：

{
    "msg":function({_req,Mock}){
        let query = _req.query;
        let username = query.username;
        let password = _req.query.password;
        if (username == "admin" && password == "123456"){
            return " Landing successful ";
        }else{
            return " Wrong user name or password ";
        }
    }
}

  The user is called admin And the password is 123456 when , Return login success information ; Otherwise, the user name or password is wrong

After the interface is created, we go to request . Access directly from the browser , A similar to postman The page of , On the left is the request and response information , On the right are the parameters and methods of sending the request .

  It's on it get Requested interface , If it is post request , Will be displayed body Area , You can write parameters here , It won't be spliced to url Yes .

  For more information, please see fastmock Out of the document ：https://marvengong.gitee.io/fastmock/#/restful

above .