Post Requests Failed to capture the access token in Robot Framework

Question

** Settings ***
Library     RequestsLibrary
Library     Collections

*** Variables ***
${SERVICE_ROOT}    https://xxx.yyy.org/m1/oauth
${SERVICE_NAME}    accesstoken
${client_key}      11111111111111111111111111111111111
${client_secret}   2222222222222222222222222222222222222222


*** Test Cases ***
Test 1
    Create access token

*** Keywords ***
Create access token
    Create Session  accessurl   ${SERVICE_ROOT}     verify=True
    &{data_1}       Create Dictionary  grant_type=client_credentials  key=${client_key}  secret=${client_secret}

    ${header}       Create Dictionary     Content-Type=application/json

    ${resp}         Post Request    accessurl  /token   params=${data_1}     headers=${header}  

    Should be Equal    ${resp.status_code}    200

In simple words, I am trying to replicate the POST METHOD from Postman to Robot Framework (Type oauth 2 ) Mandatory parameters are grant type, client id and secret. Expected Authorization: Bearer with access token

Upon executing, I am getting 401 and params returns Empty I had tried all possible ways to generate the token by making changes in the code but all proved to be unsuccessful. Kindly help me to fix this and let me know what error I have made, I am very new to automation scripting.

Answer 1

Solution:

Referred How to generate oauth 2.0 token using "Create Client Oauth2 Session" keyword in robot framework

The above worked.