Postman download and use tutorial

Postman Introduce

Postman yes google A powerful web page development and debugging HTTP request , And be able to run test cases Chrome plug-in unit .( Now the latest version is an independent app) Its main functions include ：

Simulate all kinds of HTTP requests
From the usual GET、POST To RESTful Of PUT 、 DELETE … wait . You can even send files 、 Send out extra header.

Collection function （ Test set ）
Collection yes requests Set , When you finish a test , You can take this request Save to a specific Collection Inside , In this way , The next time you do the same test , There's no need to re-enter . And one collection Can contain more than one request, If we put one request Think of it as a test case, that collection Can be seen as a test suite. adopt collection Classification of , We can well classify and test what the software provides API. and Collection just so so Import or Share Come out , Let everyone in the team share the Collection.

Humanized Response Arrangement
Usually when testing with other tools ,response It's usually plain text raw, But if it is JSON , It's stuffed into a whole line JSON. It's a barrier to reading , and Postman Can target response The format of the content is automatically beautified . JSON、 XML or HTML Will be organized into a format that we can read

install

Official download address
Pay attention to the corresponding operating system ( The default is download OS Operating system app)

After downloading and installing , open postman It shows that we need to log in
Don't panic at this time , At the bottom, there is a line of small characters that can be used directly by skipping login

Use (GET、POST、PUT etc. )

We are sending a request You need four parts when you need to ：url、method、headers、body.
url Is the request address
method It's the way of request Such as get、post、delete、put etc.
headers Is used to store header information , Such as token
body It is mainly used when there is data to upload , Such as post The submitted data will be placed in body in , When uploading files, the file data stream will also be placed in body in

open postman Create a request

You can see request We can edit all the four parts we need here

method There are also many methods

stay URL After we write the address in the column below params Edit parameters in ,postman It will automatically help us write parameters URL in , Again URL If there are parameters ,postman It will also help us automatically load the line surface params in

Click on send Send a request to view the returned response Information

Next, let's see how to use post Send new data request
josn Request for adding format parameters


Upload files , Click the select File button

close token

First we need to get token, First use postman Initiate a login request , At this time, the back end will return us token stay response in . It's about the way it looks , Of course, depending on your project needs, there may be more other information .

Get this token Then we need to put this token Set to environment variable

// take token Extract and coexist in variables 
var val = postman.getResponseHeader("token");
// Set the above variables as environment variables 
pm.environment.set("token",val);

Below you need to use token In the request of , Add... To the request header token