python requests library get json

How to Use Python Requests Library to Get JSON Data?

If you're working with APIs or web services, you'll likely encounter JSON (JavaScript Object Notation) data. Python's Requests library is a popular tool for making HTTP requests, and it provides a simple way to retrieve JSON data from web services.

Step 1: Install Requests Library

If you haven't already, you'll need to install the Requests library using pip:


    pip install requests
  

Step 2: Import Requests and Get JSON Data

Here's an example of how to use the Requests library to get JSON data:


    import requests
    
    response = requests.get('https://jsonplaceholder.typicode.com/todos/1')
    
    json_data = response.json()
    
    print(json_data)
  
  • First, we import the Requests library.
  • Then, we make a GET request to a URL that returns JSON data.
  • We use the .json() method to parse the JSON data into a Python dictionary.
  • Finally, we print the JSON data.

Step 3: Handling Errors

You should always handle errors when making HTTP requests. Here's an example:


    import requests
    
    response = requests.get('https://jsonplaceholder.typicode.com/todos/999')
    
    if response.status_code == 200:
        json_data = response.json()
        print(json_data)
    else:
        print('Error:', response.status_code)
  
  • We make a GET request to a URL that doesn't exist.
  • We check the status code of the response. If it's 200 (OK), we parse the JSON data and print it. Otherwise, we print an error message.

Step 4: Query Parameters

You can also include query parameters in your GET requests. Here's an example:


    import requests
    
    payload = {'userId': 1}
    
    response = requests.get('https://jsonplaceholder.typicode.com/todos', params=payload)
    
    json_data = response.json()
    
    print(json_data)
  
  • We define a dictionary of query parameters.
  • We make a GET request to a URL with those query parameters using the params parameter.
  • We parse the JSON data and print it.