Invalid request payload when trying to add actors to project

[Adrian Rolka]

Hey , I'm trying to add people as agents to particular service desk and after resolving bunch of problems with authentication etc i finally stumbled upon 

['Invalid request payload. Refer to the REST API documentation and try again.']}

My guess would be that 

data = {"accountId": account_id} is somehow wrong and maybe something else needs to be used. Seems that the projectID, roleID and accountId are all printed and correct for e-mail i'm using. 

Block of code making the request: 

# Make an API request to add the agent to the project

add_url = f'{jira_url}/rest/api/latest/project/{ProjectID}/role/{RoleID}'

headers = {'Content-Type': 'application/json'}

data = {"accountId": account_id}

add_response = requests.post(add_url, auth=auth, headers=headers, data=json.dumps(data))

[Adrian Rolka · Accepted solution]

It was indeed 

data = {"accountId": account_id} 

What was needed is to transform it to array so the correct way is 

data = {"accountId": [account_id]}