An HTTP POST
request sends data from the web client to the web server. Unlike an HTTP GET
request, a POST
request includes a body containing data (although this body could be zero-length).
The POST
body format can vary, and it should be identified by a Content-Type
header. Many modern, web-based APIs expect a POST
body to be JSON encoded.
Consider the following HTTP POST
request:
POST /orders HTTP/1.1 Host: example.com User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Content-Type: application/json Content-Length: 56 Connection: close {"symbol":"VOO","qty":"10","side":"buy","type":"market"}
In the preceding example, you can see that the HTTP POST
request is similar to an HTTP GET
request. Notable differences are as follows: the request starts with POST
instead of GET
; a Content-Type
header field is included; a Content-Length
header field is present; and an HTTP message body is included. In that example, the HTTP message body is in JSON format, as specified by...