curl in flask

Curl in Flask

If you are building a web application with Flask, you might need to interact with external APIs that require HTTP requests. Curl is a command-line tool that allows you to send HTTP requests and receive responses from APIs. In this guide, we will explore how to use Curl in Flask.

Using Curl with Flask's requests module

Flask's built-in requests module allows you to make HTTP requests from your Flask application. You can use Curl commands to generate the necessary code for making the request.

  • Step 1: Find the Curl command for the request you want to make. You can find this by using the Chrome developer tools or a tool like Postman.
  • Step 2: Copy the Curl command and paste it into a text editor.
  • Step 3: Convert the Curl command to Python code using the online converter.
  • Step 4: Use the generated Python code in your Flask application.

Here is an example of using Curl with Flask's requests module:

import requests

headers = {
    'Content-Type': 'application/json'

data = '{ "query": "pizza" }'

response ='', headers=headers, data=data)


Using Curl directly with Flask

If you prefer to use Curl directly in your Flask application, you can use the subprocess module to execute Curl commands from Python. However, this approach can be less secure than using Flask's built-in requests module.

  • Step 1: Install Curl on your system if it is not already installed.
  • Step 2: Use the subprocess module to execute the Curl command in your Flask application.

Here is an example of using Curl directly with Flask:

import subprocess

result =['curl', '-H', 'Authorization: Bearer XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX', '-H', 'Content-Type: application/json', '-d', '{ "query": "pizza" }', '-X', 'POST', ''], stdout=subprocess.PIPE)


As you can see, there are multiple ways to use Curl in Flask. Choose the approach that works best for your project and requirements.