'Error': 'JSON parse error - Expecting value: line 1 column 1 (char 0)' How do I fix this

user_8342189 0
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I am writing a script to make requests from different web services. I am having problem when posting data from the json data below. When I run the patient_create_bill()function I get the logs below from response.

RESPONSE IS!!!!!
{'Error': 'JSON parse error - Expecting value: line 1 column 1 (char 0)'}
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): 0.0.0.0:9000
DEBUG:urllib3.connectionpool:http://0.0.0.0:9000 "POST /api/bill/patient/bills/ HTTP/1.1" 400 72
Creating Patient Bill .....................................

I have attempted to make a POST on post man I get 201 response meaning the payload is fine there is nothing wrong with it. enter image description here

This is my POST payload.
I have a separate file called mocks.py contains has PATIENT_BILL_CREATE_PAYLOAD 

PATIENT_BILL_CREATE_PAYLOAD = {
    "bill_items": [{
        "item": "Syringes",
        "qty": 2,
        "description": "Medicorp syringes"
    }],
    "bill_services": [{
        "service": "Diagnosis",
        "service_type": "1",
        "duration": 5,
        "description": "diagnosis"
    }],
    "client": "Sandra Hernandez"
}

This is the function
i've imported the PATIENT_BILL_CREATE_PAYLOAD and using it in this function. 

def patient_create_bill(headers):
    """This function uses login creds provided and returns token plus logged in user data."""
    url = "http://0.0.0.0:9000/api/bill/patient/bills/"
    data = PATIENT_BILL_CREATE_PAYLOAD
    res = requests.post(url, data=data, headers=headers)
    res_data = res.json()
    print("Creating Patient Bill .....................................\n")
    return res_data
request python-3.x
3 Answers

My error was because of using data instead of json in request and also specified the header Content-Type as `application/json :-).

user_83421890

Your own answer is right (encode your data to json), and here is the code fixed. This worked for me:

instead of

res = requests.post(url, data=data, headers=headers)

the correct way to write it is...

import json

...

res = requests.post(url, data=json.dumps(data), headers=headers)

# or

res = requests.post(url, json=data, headers=headers)

More info about this type of requests in requests library docs.

user_132307770

This log tells that you not received body in HTTP reponse (HTTP CODE 400): DEBUG:urllib3.connectionpool:http://0.0.0.0:9000 "POST /api/bill/patient/bills/ HTTP/1.1" 400 72

Python trying to parse emtry string. You can run this:

import json
json.loads('')

And this code will raise:

json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

I think, you should check your URL endpoint to call.

user_104503000
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