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404 means that nothing exists at that URI (like an undefined variable in programming). Returning 200 with an empty body means that something does exist there and that something is just empty right now (like an empty string in programming). 404 doesn't mean it was a "bad URI".
Based on the given answers and information in the question, this is the code you should use: // We want to check the current URL. HttpURLConnection.setFollowRedirects(false); HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
Jul 15, 2010 · The Servlet API gives you a method to send a 404 or any other HTTP status code. It's the sendError method of HttpServletResponse: public void doGet(HttpServletRequest request, HttpServletResponse response) { response.sendError(HttpServletResponse.SC_NOT_FOUND); }
Jun 22, 2016 · If http://localhost:8080/eventscheduler/ exists as an endpoint but required resources are unavailable, a 5xx error is appropriate. A good example of this would be if a database is offline, where you could return a 503.
- Overview
- Http Status Codes
- Handling Errors
- Examples
- Conclusion
REST is a stateless architecture in which clients can access and manipulate resources on a server. Generally, REST services utilize HTTP to advertise a set of resources that they manage and provide an API that allows clients to obtain or alter the state of these resources. In this tutorial, we’ll learn about some of the best practices for handling ...
When a client makes a request to an HTTP server — and the server successfully receives the request — the server must notify the client if the request was successfully handled or not. HTTP accomplishes this with five categories of status codes: 1. 100-level (Informational) – server acknowledges a request 2. 200-level (Success) – server completed the...
The first step in handling errors is to provide a client with a proper status code. Additionally, we may need to provide more information in the response body.
The above practices are common throughout some of the most popular REST APIs. While the specific names of fields or formats may vary between sites, the general patterns are nearly universal.
In this article, we examined some of the best practices of REST API error handling: 1. Providing specific status codes 2. Including additional information in response bodies 3. Handling exceptions in a uniform manner While the details of error handling will vary by application, these general principles apply to nearly all REST APIs and should be ad...
The Tomcat HTTP 404 error in Java indicates that the server cannot find a resource that was searched for. This can often be solved by checking the URL.
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Jul 2, 2020 · 401 — indicates that the request has not been applied because it lacks valid authentication credentials for the target resource. The user is not authenticated. (See here for more information on the difference between authentication and authorization). The API requires a valid user, this is determined by the Authorization header in the request.
