python requests post json vs data

Python Requests Post JSON vs Data

Python Requests is a popular library used to make HTTP requests in Python. When making a POST request with Requests, there are two ways to send data: using the json parameter or the data parameter. In this blog post, I will explain the differences between the two and when to use each one.

Using the JSON Parameter

The json parameter is used to send JSON data in the request body. This is useful when interacting with APIs that expect JSON data. Here's an example:


import requests

url = 'https://example.com/api'
data = {'name': 'John', 'email': '[email protected]'}
headers = {'Content-type': 'application/json'}

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

In this example, the json parameter is set to the data dictionary. Requests will automatically encode the dictionary as JSON and set the Content-type header to application/json.

Using the Data Parameter

The data parameter is used to send data in the request body in a format other than JSON (e.g. form data). Here's an example:


import requests

url = 'https://example.com/api'
data = {'name': 'John', 'email': '[email protected]'}

response = requests.post(url, data=data)

In this example, the data parameter is set to the data dictionary. Requests will automatically encode the dictionary as form data and set the Content-type header to application/x-www-form-urlencoded.

When to Use Each One

Use the json parameter when sending JSON data to an API. Use the data parameter when sending data in a format other than JSON.

If you're not sure which one to use, check the API documentation or contact the API provider for guidance.