sending post request in flask

Question

I am trying to send post request in flask.

I'd like to send json object with Content-Type: application/json set as a header.

I'm doing this with requests module as follows:

json_fcm_data = {"data":[{'key':app.config['FCM_APP_TOKEN']}], "notification":[{'title':'Wyslalem cos z serwera', 'body':'Me'}], "to":User.query.filter_by(id=2).first().fcm_token}
json_string = json.dumps(json_fcm_data)
print json_string
res = requests.post('https://fcm.googleapis.com/fcm/send', json=json_string)

But this gives me:

TypeError: request() got an unexpected keyword argument 'json'

Any advices on how to fix this?

there are 3 attributes, `headers`, `param` and `data`. To set headers variable like `content-type` you should add that in headers attribute — akash karothiya, Apr 25 '17 at 08:59

John Moutafis · Accepted Answer · 2018-08-17T20:23:04.450

15

First fix the error:

You need to change this:

res = requests.post('https://fcm.googleapis.com/fcm/send', json=json_string)

to this:

res = requests.post('https://fcm.googleapis.com/fcm/send', data=json_string)

The error you are getting states that requests.post cannot accept an argument named json, but it accepts a keyword argument named data, which can be in json format.

Then add your headers:

If you want to send custom headers with the requests module, you can do it as follows:

headers = {'your_header_title': 'your_header'}
# In you case: headers = {'content-type': 'application/json'}
r = requests.post("your_url", headers=headers, data=your_data)

To sum everything up:

You need to fix your json formatting up a bit. A full solution will be:

json_data = {
    "data":{
        'key': app.config['FCM_APP_TOKEN']
    }, 
    "notification":{
        'title': 'Wyslalem cos z serwera', 
        'body': 'Me'
    }, 
    "to": User.query.filter_by(id=2).first().fcm_token
}

headers = {'content-type': 'application/json'}
r = requests.post(
    'https://fcm.googleapis.com/fcm/send', headers=headers, data=json.dumps(json_data)
)

edited Aug 17 '18 at 20:23

answered Apr 25 '17 at 09:11

John Moutafis

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It seams it works <3 Thank you! Could you check if I'm doing the JSON object correctly? I'd like to get something like this: { "data" : { "key" : "value" } "notification" : { "title" : "Hi", "body": "ok" }, "to" : "token" } – demoo Apr 25 '17 at 09:28
1

I have added a full solution on my answer, have a look! – John Moutafis Apr 25 '17 at 09:43
"JSON_PARSING_ERROR: Unexpected character (d) at position 0.\n" – demoo Apr 25 '17 at 09:52
1

Yeah my bad, `json.dumps` is needed after-all – John Moutafis Apr 25 '17 at 09:54
Thank you a lot for your help! – demoo Apr 25 '17 at 09:58
No problem mate :) – John Moutafis Apr 25 '17 at 09:59

sending post request in flask

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