I'm trying to upload some stuff using Facebooks API here but I keep getting the error "This field must be a string.", and it seems like it is related to how I parse my "data" field (if I copy-paste it into their Graph API, it works fine).
If you don't know what the file to Facebooks API takes it is;
data - json array of data
upload_tag - string
access_token - token
right now I have my data in a pandas data-frame and I'm using the data = df.to_json(orient="records") to generate the json-string parsed in to the data field
data = df.to_json(orient="records")
file = {"access_token":token
upload_tag: "test",
data = data}
r = requests.post(f"https://graph.facebook.com/v11.0/{offline_event_id}/events",files = file)
#{"error":{"message":"(#100) This field must be a string.","type":"OAuthException","code":100,"fbtrace_id":"some_code"}}
I have tried different formations of the data-string but getting the same error (even when copy-pasting Facebooks example-string into my code).
I wonder if requests somehow format the files in a wrong way, when sending the POST-request? Looking at r.request.body (of facebooks example data) I get the following
Content-Disposition: form-data; name="data"; filename="data"
[{"match_keys": {"phone": ["HASH1", "HASH2"], "email": ["HASH3", "HASH4"]}, "currency": "USD", "value": 16, "event_name": "Purchase", "event_time": 1456870902}]
which indeeed does not seem to be a string
