http://ghafoorsblog.com/tags/http-status/Recent content in Http-Status on Ghafoor's Personal BlogHugoennoreply@example.com (AG Sayyed)noreply@example.com (AG Sayyed)Copyright © 2024-2026 AG Sayyed. All Rights Reserved.Sat, 16 May 2026 17:42:12 +0100http://ghafoorsblog.com/courses/ibm/fullstack-content/fullstack-pcert/08-ai-apps-python-flask/02-module/006-error-handling/Fri, 25 Jul 2025 00:00:00 +0000noreply@example.com (AG Sayyed)http://ghafoorsblog.com/courses/ibm/fullstack-content/fullstack-pcert/08-ai-apps-python-flask/02-module/006-error-handling/<p class="lead text-primary"> This document covers HTTP status codes, error handling in Flask, and best practices for returning error responses from API endpoints. It explains status code categories, custom error responses, and application-level error handlers for robust API design. </p> <hr> <h2 id="understanding-http-status-codes">Understanding HTTP Status Codes</h2> <p>Every HTTP response includes a three-digit status code that indicates the result of the request. Status codes are grouped into categories:</p> <table> <thead> <tr> <th>Code Range</th> <th>Category</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>100–199</td> <td>Informational</td> <td>Request received, continuing process</td> </tr> <tr> <td>200–299</td> <td>Success</td> <td>Request received and processed successfully</td> </tr> <tr> <td>300–399</td> <td>Redirection</td> <td>Further action needed to complete request</td> </tr> <tr> <td>400–499</td> <td>Client Error</td> <td>Error in the request from the client</td> </tr> <tr> <td>500–599</td> <td>Server Error</td> <td>Error on the server side</td> </tr> </tbody> </table> <p>Common codes include:</p>