Four formats of Http Body

1. Reference materials

Several data formats of http request body

Multipart/form-data request analysis of HTTP protocol

2. Four formats of Http Body

There are four formats such body at the request of the Postman: form-data, , x-www-from-urlencoded, raw,binary this four formats, respectively, represent?

2.1、form-data

form-data The role of

form-dataIt is in the Http protocol, multipart/form-datawhich means submitting in the form of a form, it will process the data of the form into a message, with tags as the unit, separated by separators. You can upload key-value pairs or files.

Use form-datatransmission string key pair

Select the format of Body in Postman as form-data

Content-TypeField value multipart/form-dataand use boundaryas a border to divide each pair of key-valuekey-value pairs

Use form-datafile transfer

How to transfer files in Postman? Select the format of Body in Postman form-data, and select [File] when entering Key to upload the file

Content-TypeField value multipart/form-data, and use boundaryas a border to divide each pair of key-valuekey-value pairs (file and the file name can also be seen as key-valuethe relationship between key-value pairs)

Using form-datasimultaneous transmission of strings and key file

Select the format of Body in Postman form-data, add string key-value pairs and files

Now, in fact, there is no difference between transferring files and transferring string key-value pairs~~~

2.2、x-www-from-urlencoded

x-www-from-urlencoded The role of

application/x-www-from-urlencoded Will convert the data in the form into key-value pairs, such as name=oneby&hobby=coding

Demo x-www-from-urlencoded

Select the format of Body in Postman as x-www-from-urlencoded

Content-TypeField has a value application/x-www-form-urlencoded, parameter submitted form in key-valuethe form of key-value pairs is encapsulated in the request body

2.3、raw

raw The role of

You can upload text in any format

Select text, the request header is:text/plain
Select javascript, the request header is:application/javascript
Selected json, the request header is: application/json(if you want to jsonformat parameter passing, to use raw+jsonon the line)
Select html, the request header is:text/html
Select application/xml, the request header is:application/xml

Demos rawtransmission jsonstring

Select the format of Body in Postman raw, and selectapplication/json

Content-TypeThe value of the field application/json, the content of the request body is the json string we filled in

2.4、binary

binary The role of

binary Usually used to upload files, because there is no key value, only one file can be uploaded at a time (generally not much)

Demos binarytransfer a single file

Select the format of Body in Postman binary, and select the file to upload

Content-TypeThe value of the field is application/jsonthat only one file is transferred, so the content of the request body is the content of the file