How to set header in robot framework for HttpLibrary.HTTP - robotframework

Question

How to set the header as content-type and authentication for robotframework
*** Variables ***
${PORT} 36504
${HOST} https://staging-product..co/api/products
${HeaderName} Content-Type
${HeaderValue} application/json
${HeaderName1} Authorization
${HeaderValue1} Token token=zkzg1VPnhcMm7uv,email=cctest7#gmail.com
*** Settings ***
Resource variables.txt
Library HttpLibrary.HTTP
Test Setup Create HTTP Context ${HOST} https
*** Test Cases ***
Set Headers
POST https://staging-product..co/api/products
Full-URL GET to MytestSsite
GET https://staging-product.connect.co/

Answer 1

Taken from the HTTP Library Documentation (https://peritus.github.io/robotframework-httplibrary/HttpLibrary.html)
Set Request Header | header_name, header_value |
Sets a request header for the next request.
header_name is the name of the header, e.g. User-Agent header_value is the key of the header, e.g. RobotFramework HttpLibrary (Mozilla/4.0)
A further simple example would be:
Set Request Header Content-Type application/json
or using your variables above:
Set Request Header ${HeaderName} ${HeaderValue}
Here is a full example:
Create HTTP Context ${HOST} http
${Request_Body} Get File ${xmlFilename} encoding=${Request_Body_Encoding}
Set Request Header ${HeaderName} ${HeaderValue}
Set Request Body ${Request_Body}
Log ${Request_Body}
POST ${URL}
Response Status Code Should Equal ${ResponseStatusCode}