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Narkw Brahma

Narkw Brahma

• 2 min read

How to add headers in Python Requests?

If you want to add headers to your Python requests, then it's important to understand what headers are and why they are important. Headers are additional information that is sent along with a request to provide more details about the request, such as the user agent, the content type, and the authentication details.

Method 1: Using the headers parameter

The easiest way to add headers to a Python request is by using the headers parameter. This parameter is a dictionary that contains the header name and value pairs. Here is an example:


      import requests
      
      url = 'https://www.example.com'
      headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36'}
      
      response = requests.get(url, headers=headers)

In this example, we are sending a GET request to https://www.example.com with a user agent header set to the Chrome browser version 58.0.3029.110.

Method 2: Using the request.headers dictionary

You can also add headers to the request using the request.headers dictionary. This dictionary contains all the headers that will be sent with the request. Here is an example:


      import requests
      
      url = 'https://www.example.com'
      
      response = requests.get(url)
      
      response.headers['user-agent'] = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36'

In this example, we are first sending a GET request to https://www.example.com without any headers. Then we are updating the headers using the response.headers dictionary to set the user agent header to the Chrome browser version 58.0.3029.110.

Method 3: Using a session object

If you want to reuse headers across multiple requests, then you can use a session object. A session object allows you to persist headers across multiple requests made to the same server. Here is an example:


      import requests
      
      url = 'https://www.example.com'
      
      session = requests.Session()
      session.headers.update({'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36'})
      
      response = session.get(url)

In this example, we are first creating a new session object and setting the user agent header to the Chrome browser version 58.0.3029.110. Then we are sending a GET request to https://www.example.com using the session object.

These are some of the ways you can add headers to your Python requests. Choose the one that best fits your needs and preferences.

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