HTTP POST with a JSON Body

An HTTP POST containing a JSON body looks something like this:

POST /v2/checkout/orders HTTP/1.1
Host: example.com
Accept: */*
Accept-Encoding: gzip
Content-Type: application/json
Content-Length: 82
Request-Id: 7b92603e-77ed-4896-8e78-5dea2050476a
Authorization: Bearer Access-Token

{"reference_id":"REFID-000-1001","amount":{"currency_code":"CAD","value":"10.00"}}

About the HTTP POST

The 1st line is the HTTP start line. It contains the HTTP verb ("POST"), followed by the path part of the URL, and finally the HTTP protocol version.
Following the start line, we have standard MIME. HTTP requests and responses are MIME, just like emails are MIME. A MIME message is composed of a header followed by a blank line, followed by the MIME body. In this case, the MIME body will be the JSON document.
The Content-Type header describes the type of content in the MIME body. For JSON it is typically "application/json" or (less common) "text/json".
Content-Length indicates the exact number of bytes in the body of the HTTP request (i.e. the length of the content that follows the blank line). Chilkat always automatically computes and adds the Content-Length header for you.
The Host header is the domain part of the URL. In the above example, the URL would be "https://example.com/v2/checkout/orders". Chilkat always automatically adds the Host header.
The Accept and Accept-Encoding headers are automatically added by Chilkat, but can be changed by your app or suppressed. They tell the server information about what kinds of responses are acceptable.
Request-Id is an example of a custom header required by a particular server. Your application can add custom headers.
Authorization is a standard header used for authentication. In this example, we're sending an OAuth2 access token.
You can generate source code from a raw HTTP request using Chilkat's online tool at https://tools.chilkat.io/httpRequestToCode.

CURL

A CURL statement to send the above HTTP request is shown here. You can generate source code from a CURL statement using Chilkat's online tool at https://tools.chilkat.io/curlHttp

curl -v -X POST https://example.com/v2/checkout/orders \
-H "Accept: */*" \
-H "Accept-Encoding: gzip" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer Access-Token" \
-H "Request-Id: 7b92603e-77ed-4896-8e78-5dea2050476a" \
-d '{ 
      "reference_id": "REFID-000-1001",
      "amount": {
        "currency_code": "CAD",
        "value": "10.00"
      }
    }'

Chilkat Examples Implementing the Above POST