Passing --form data as part of ROBOT Framework

Question

I am trying to pass the below API request in ROBOT framework:

curl --request POST --url <API End Point>  --form 'mldata={"id": “idname”, "author": “author name, "title": “title name, "description": “description details“, "version": "0.0.4", "image": “/path/to/image”, "icon": "base64 encoded image"};type=application/json' --header "Authorization: <Bearer Token>”

Written the same in ROBOT framework [Version: 3.2.2], but getting error: "status=400, reason=Bad Request body={"message":"Request is not a multipart request!"}"strong text

It seems I am not passing the --form data in a right way. Request for help in passing the form data [--form 'mldata={"id": “idname”, "author": “author name, "title": “title name, "description": “description details“, "version": "0.0.4", "image": “/path/to/image”, "icon": "base64 encoded image"};type=application/json'] in robot framework.

How should I pass in the right way?

Onboard ML From External Repo
    [Arguments]    ${token}=default
    Create Session    session    ${host}
    ${data}=    Create Dictionary    id=${id}    author=${author}    title=${title}    description=${description}    version=${version}    image=${repo_path}
    ${form_data}=    Evaluate    {'mldata=': ${data}}
    ${header}=    Create Dictionary    Authorization=${token}
    ${response}=   Post Request    session    /v1/ml    data=${form_data}    headers=${header}
    Should Be Equal As Strings    ${response.status_code}    200

Answer 1

It should be send as a string , and also you don't need equal

${form_data}=    Evaluate    {'mldata=': str(${data}).replace("'",'"')}

As you observed , we have to pass this as

files=${form_data}