Sending audio to user in Facebook messenger bot

Question

I'm trying to send audio file to user in Facebook messenger bot using file upload. Official documentation says you can do it through curl command in terminal. This command works:

curl  \
  -F 'recipient={"id":user_id}' \
  -F 'message={"attachment":{"type":"audio", "payload":{}}}' \
  -F 'filedata=@mymp3.mp3;type=audio/mp3' \
  "https://graph.facebook.com/v2.6/me/messages?access_token=ACCESS_TOKEN"

where ACCESS_TOKEN is my page's token, "mymp3.mp3" is the file I want to send.

Question - how do I do the same in python using requests library?

I tried this:

with open("mymp3.mp3", "rb") as o:
    payload = {
        'recipient': "{id: 1336677726453307}",
        'message': {'attachment': {'type': 'audio', 'payload':{}}},
        'filedata':o, 'type':'audio/mp3'
    }
    files = {'recipient': {'id': '1336677726453307'},'filedata':o}
    headers = {'Content-Type': 'audio/mp3'}
    r = requests.post(fb_url, data=payload)
print r.text

I get this error:

{"error":{"message":"(#100) Message cannot be empty, must provide valid attachment or text","type":"OAuthException","code":100,"error_subcode":2018034,"fbtrace_id":"E5d95+ILnf5"}}

Also, tried this:

import requests
from requests_toolbelt import MultipartEncoder

m = MultipartEncoder(
    fields={
        'recipient': {'id': '1336677726453307'},
        'message': {'attachment': {'type': 'audio', 'payload':{}}},
        'filedata':(open("mymp3.mp3", "rb"), 'audio/mp3')
    }
)
headers = {'Content-Type': m.content_type}
r = requests.post(fb_url, data=m, headers=headers)
print r.text

I got this error: AttributeError: 'dict' object has no attribute 'encode'

https://stackoverflow.com/questions/25491090/how-to-use-python-to-execute-a-curl-command — andyrandy, Oct 05 '17 at 07:57
https://stackoverflow.com/questions/2667509/curl-alternative-in-python — andyrandy, Oct 05 '17 at 07:57

score 2 · Accepted Answer · answered Oct 05 '17 at 12:29

OK, I got it (big thanks to my colleague!)

fb_url = 'https://graph.facebook.com/v2.6/me/messages'
data = {
    'recipient': '{"id":1336677726453307}',
    'message': '{"attachment":{"type":"audio", "payload":{}}}'
}
files = {
    'filedata': ('mymp3.mp3', open("mymp3.mp3", "rb"), 'audio/mp3')}
params = {'access_token': ACCESS_TOKEN}
resp = requests.post(fb_url, params=params, data=data, files=files)

score 0 · Answer 2 · answered Oct 05 '17 at 11:27

I think your first attempt was near the goal, but you seem to struggle with the fileupload. You first need to understand what curl does; curl documentation is here. Then do the same thing with requests; Documentation is here.

From what I understand, you can try:

with open("mymp3.mp3", "rb") as finput:
    data = {
        'recipient': "{id: 1336677726453307}",
        'message': {'attachment': {'type': 'audio', 'payload':{}}},
    }
    #
    files = {'filedata': ('mymp3.mp3', finput, 'audio/mp3')}
    # BTW you can remove the ACCESS_TOKEN from fb_url and pass it as params instead
    params = {'access_token': 'ACCESS_TOKEN'}
    resp = requests.post(fb_url, params=params, data=data, files=files)

print r.text

I'm getting this error: {"error":{"message":"(#100) Message cannot be empty, must provide valid attachment or text","type":"OAuthException","code":100,"error_subcode":2018034,"fbtrace_id":"HTjHVPM0grB"}} — Alikhan Amandyk, Oct 05 '17 at 12:00

Sending audio to user in Facebook messenger bot

2 Answers2