Api request - form data body

i need your support please , i am trying to write test case for api request in a data-driven style as below details
data file is .csv
request body : form data where keys ( entity , content )
entity key is atext and content is a file
header contain user token
below postman screen shot

the error a post request body but i can’t figure out how to fix

Code snippet
*** Settings ***
Library RequestsLibrary
Library JSONLibrary
Library Collections
Library OperatingSystem
Library CSVLibrary
Library String
Library DateTime

Resource ./Environment.resource

*** Keywords ***
[Arguments] ${filePath}
Create Session APP_Login ${Serverurl}
${jsonBody}= Load Json From File ${EXECDIR}${filePath}
Set To Dictionary ${jsonBody} username=${Username} password=${Password} app=${Entity}
${response}= POST On Session APP_Login ${Login} json=${jsonBody}
# Log To Console ${response.content}
${token}= Set Variable ${response.json() [‘rs’]}
set Suite variable ${token}
${app-auth-header}= Create Dictionary app-auth-header=${token}
Create Session app_User ${Serverurl} headers=${app-auth-header}
##### assertions #####
Should Be Equal As Strings ${response.status_code} 200

################# Incoming ################
IN Entity
[Arguments] ${row}
${entity}= Create Dictionary docSubject=${row[0]} addMethod=1 docNotes=null docStatus=4 docDate=${row[1]} docType=null fileCode=null fileSerial=null fileId=null mainClassification=null subClassification=null ou=${row[2]} registryOU=${row[3]} securityLevel=1 priorityLevel=0 refDocNumber=${row[4]} mainSiteId=${row[5]} subSiteId=${row[6]} refDocDate=${row[7]} followupStatus=1 followupDate=null siteType=3
[Return] ${entity}

IN Content
[Arguments] ${row}
${content}= Create Dictionary content=${row[8]}
${files}= Create List content=${row[8]}
[Return] ${content}

Get File Name
[Arguments] ${file_path}
${path_components}= Split String ${file_path} /
${file_name}= Get From List ${path_components} -1
[Return] ${file_name}

Add and Archive
[Arguments] ${file_path}
${records}= Read Csv File To List ${EXECDIR}${file_path} delimiter=,
FOR ${row} IN @{records}
${entity}= IN Entity ${row}
Log To Console the entity body : ${entity}

    ${content}=   IN Content    ${row}
    Log To Console     the Content body : ${content}

    ${boundary}=    Generate Random String    length=10    chars=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
    ${headers}=  Create Dictionary  Content-Type=multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW

    ${data}=    Create Dictionary    entity=${entity}    content=${content}
    Log To Console     the request body : ${data}

    ${content_exists}=  Run Keyword And Return Status  Dictionary Should Contain Key  ${data}  content
    Set Variable If    ${content_exists}    ${data["content"]}    ${content}

    ${entity_exists}=  Run Keyword And Return Status  Dictionary Should Contain Key  ${data}  entity
    Set Variable If    ${entity_exists}    ${data["entity"]}    ${entity}
    Log To Console     the request body : ${data}
    run keyword if    ${content_exists}    Set Variable    ${data["content"]}    ${content}
    run keyword if    ${entity_exists}    Set Variable    ${data["entity"]}    ${entity}
    ${data}=        Evaluate    {'entity':(None,${entity}) ,'content': (None,${content})}
    Log To Console     the request body : ${data}

    ${response}=  POST On Session    app_User    ${endpoint}  headers=${headers}  data=${data}

    # ${docId}=    Set Variable    ${response.json()['rs']}
    # Log    Added incoming correspondence with doc ID ${docId}
    # ${archive_response}=    POST On Session    app_User    /url/${docId}/archive
    # Log    ID ${docId}

*** Test Cases ***

[Tags] Login
Login “jsonfilepath”

Add and Archive “csvfilepath”

after run all keyword passed but i have 500 error at post step

KEYWORD ${response} = RequestsLibrary . POST On Session app_User , ${endpoint}, headers=${headers}, data=${data}
Sends a POST request on a previously created HTTP Session.

Start / End / Elapsed: 20230423 15:08:17.809 / 20230423 15:08:18.272 / 00:00:00.463
15:08:18.159 INFO POST Request : url=full url
headers={‘User-Agent’: ‘python-requests/2.28.2’, ‘Accept-Encoding’: ‘gzip, deflate’, ‘Accept’: ‘/’, ‘Connection’: ‘keep-alive’, ‘app-auth-header’: ‘token’, ‘Content-Type’: ‘multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW’, ‘Content-Length’: ‘413’}

15:08:18.160 INFO POST Response : fullurl
status=500, reason=Internal Server Error
headers={‘Vary’: ‘Origin, Access-Control-Request-Method, Access-Control-Request-Headers’, ‘Content-Type’: ‘application/json’, ‘X-Content-Type-Options’: ‘nosniff’, ‘X-XSS-Protection’: ‘1; mode=block’, ‘Cache-Control’: ‘no-cache, no-store, max-age=0, must-revalidate’, ‘Pragma’: ‘no-cache’, ‘Expires’: ‘0’, ‘X-Frame-Options’: ‘DENY’, ‘Content-Language’: ‘en-US’, ‘Transfer-Encoding’: ‘chunked’, ‘Connection’: ‘Close’, ‘Date’: ‘Sun, 23 Apr 2023 12:08:16 GMT’}
body={“sc”:500,“ms”:“Required request parameter ‘entity’ for method parameter type String is not present”,“ec”:12000,“lm”:[“2023-04-23 15:08:17,926 INFO [WebContainer : 13] c.e.c.s.security.LoggingInterceptor.preHandle [31] - Starting Handling Request Number 5005400083053282480”,“2023-04-23 15:08:17,926 ERROR [WebContainer : 13] c.e.c.s.e.ExceptionControllerAdvice.exception [72] - Undefined Exception {}”,“org.springframework.web.bind.MissingServletRequestParameterException: Required request parameter ‘entity’ for method parameter type String is not present”

any help ?

The ${data} variable you create is not a dict, as can be seen from the log (INFO POST Request).

Due to reuse of variable names, I can’t really indicate where it might go off-track, but the Evaluate expression is suspect. Within RF scope, I’d suggest to use the keywords from the Collections library to manipulate lists or dicts.