postman工具
進入postman官網
www.postman.com/downloads/
https://www.postman.com/downloads/

https://www.postman.com/postman/published-postman-templates/documentation/ae2ja6x/postman-echo?ctx=documentation

Postman Echo is a service you can use to test your REST clients and make sample API calls. It provides endpoints for GET, POST, PUT, various auth mechanisms and other utility endpoints.
The documentation for the endpoints as well as example responses can be found at https://postman-echo.com

Echo API

https://postman.xiniushu.com/docs/developer/echo-api/

Postman Echo is service you can use to test your REST clients and make sample API calls. It provides endpoints for GET, POST, PUT, various auth mechanisms and other utility endpoints.
The most basic request in this entire collection is the very first GET request under the Request Methods folder, called “Get Request”.
The documentation for the endpoints as well as example responses can be found at https://postman-echo.com

（2）form-data形式

【接口測試】Postman（二）-Postman Echo

https://blog.csdn.net/HMY71/article/details/129721889

**URL：**https://postman-echo.com/post

Body：

KEY VALUE DESCRIPTION
foo1 abc
foo2 efg