Curl post request and get response. I want to test my Spring REST application with cURL.

Curl post request and get response With cURL, you can make GET, POST, PUT, and DELETE requests to interact with REST and other web APIs. In this guide, we’ll dive deep into how to use cURL to retrieve **only response headers** from HTTP POST requests. Example: A client (browser) sends an HTTP request to the server; then the server returns a response to the client. cURL is a versatile and widely used CLI that allows you to make HTTP requests. I also want to get the HTTP response code (like 200, 422) at the same time, so I can verify that the process went through. This tutorial helped you to get the request header and response header values using the curl command line. tech/users to create a new user. The CONNECT is also an HTTP request so it gets response codes in the same numeric range and you can use --write-out to extract that code as well. It works: Nov 22, 2025 · Learn how to send GET requests with cURL using simple commands, flags, and real examples. This guide shows you how to handle this. GET requests are primarily used to retrieve data from a server and are a fundamental part of the HTTP protocol. cgi"); /* Now specify the POST data */ curl_easy_setopt (curl, CURLOPT_POSTFIELDS, "name=daniel&project=curl"); You can tell curl to not change POST requests to GET after a 30x response by using the dedicated options for that: --post301, --post302 and --post303. This will help demonstrate how to make REST API requests using cURL. To add additional HTTP headers, use the -H command line option. . For the sake of this article, let's use a sample social media API that I have created. How to Send a POST Request with curl Before you begin this tutorial, you need to install curl on your computer. 1 < * Connection #0 to host localhost left intact * Closing connection #0 So my question is; how do I post using curl and print out the response content body? Oct 22, 2021 · Is it possible to use curl to call a REST service (POST method) and get: The HTTP status code. are not relevant for my use case and Since there can be an HTTP request and a separate CONNECT request in the same curl transfer, we often separate the CONNECT response (from the proxy) from the remote server's HTTP response. I'm sending a simple curl request to pinterest. The target URL is passed as the first command-line option. This article will show you how to use cURL options, syntax, and examples to send data to a server. All transfers involving HTTP start with an HTTP request. Jun 7, 2024 · For a more in-depth understanding of cURL, you can refer to our previous article on What is cURL? What is a GET request? Before we jump into the specifics of sending GET requests, it's important to understand what a GET request really is. I wrote my POST code at the Java side. In this beginner‘s guide, we‘ll cover the basics of using cURL effectively. */ curl_easy_setopt (curl, CURLOPT_URL, "http://postit. This guide walks you through the syntax, options, and best practices for sending data to a server, whether it’s a JSON payload or form data. Sep 9, 2025 · Tired of guessing why your API calls keep failing? A cURL POST request is the fastest way to test endpoints and send data straight away from your command line. Understanding how to effectively use curl to return both the HTTP status code and the response body is crucial for diagnosing issues, automating tests, and interacting with APIs. -H: This option adds the customer Headers to the request. We‘ll cover the basics, look at advanced techniques, troubleshoot issues, and more. The response body. Virtually all libcurl-using applications need Aug 3, 2023 · Learn how to selectively include the request and response HTTP headers in the output of the `curl` command. A complete step-by-step guide for beginners and developers The request contains a method (like GET, POST, HEAD etc), a number of request headers and sometimes a request body. In this example, we use curl to send a POST request to the endpoint https://crud. How can I call the web service in Linux with cURL? Jul 14, 2023 · To make a GET request using Curl, run the curl command followed by the target URL. Oct 25, 2023 · Learn how to make a POST request using cURL, a command-line tool for transferring data using various protocols. -d: This option sends data in the request body using the POST requests. Oct 25, 2023 · Learn how to use the curl command-line tool to get the HTTP status code of a web page, along with other useful information such as headers, response body, and redirections. 6 days ago · While cURL is commonly associated with fetching full responses, it also provides flexible options to extract only response headers, even for POST requests (which typically include a request body). This guide details the simple steps with typical scenarios like passing parameters, headers, and JSON responses. I get the http headers with the command Apr 25, 2012 · The following is the response received: < HTTP/1. The method set with --request overrides the method curl would otherwise select to use. Nov 3, 2023 · In this comprehensive beginner‘s guide, you‘ll learn how to create POST requests using curl. When I do it using PHP no result is shown. Whether you‘re testing a new API, automating […] Apr 18, 2024 · Learn how to send and handle POST requests with cURL, including setting the request method and including data in the request body. HTTP works as a request-response protocol between a client and server. We can also use curl to request a server for the details. Apr 8, 2012 · One can request only the headers using HTTP HEAD, as option -I in curl(1). When making a POST request with cURL, you're sending data to a server or an API. com. Jun 27, 2025 · A cURL POST refers to a POST request made using cURL. Run the following command to check if curl is installed: Mar 26, 2025 · Learn how to test HTTP GET, POST, PUT, and DELETE using curl I am using curl in a bash script to fetch the response of a service as below, Requests An HTTP request is what curl sends to the server when it tells the server what to do. Learn more. Jul 23, 2025 · Syntax: curl [options] [URL] Options in the CURL tool: -X: This option specifies the HTTP method (GET, POST,PUT,DELETE etc). Apr 18, 2011 · I'm using curl at the command line on Linux to issue HTTP requests. The response contains status information about the request and may also contain the requested content. 1 200 OK < Content-Length: 3 < Content-Type: text/html; charset=UTF-8 < Server: TornadoServer/2. From JSON, form data, file uploads, authentication, and headers with real-world examples. -o: This option write output into a file. Find out how to retrieve JSON data and the main request arguments. Apr 5, 2025 · Once the request is sent, we get the response code from the server and read the response using a BufferedReader, appending each line to a StringBuilder. ba3a. Jun 21, 2022 · How to create PHP curl post and other request methods with a basic introduction and more use case examples. The response bodies are printed to standard out, which is fine, but I can't see from the man page how to get curl to print the Nov 20, 2025 · the json format requires a bunch of extra quoting curl will send form urlencoded by default, so for json the Content-Type header must be explicitly set This gist provides examples for using both formats, including how to use sample data files in either format with your curl requests. Jan 8, 2025 · Explore how to send GET requests with cURL. Feb 10, 2023 · Learn how to use curl to make quick and easy REST API requests from the command line in this beginner-friendly guide. Apr 26, 2025 · The command-line tool curl is widely used for transferring data with URLs, especially in the realms of web development, testing, and automation. I am trying to post a JSON d Can anyone show me how to do a PHP cURL with an HTTP POST? I want to send data like this: username=user1, password=passuser1, gender=1 To www. However, I want to test it with cURL. com I expect the cURL to return a response like data. When it wants to get data or send data. An HTTP response is a set of metadata and a response body, where the body can occasionally be zero bytes and thus nonexistent. See full list on linuxize. Response body The response body is passed to the write callback and the response headers to the header callback. If the response goes through and the data is property formatted, then PATCH would be a JSON of the response. -O: Downloads the file and uses the remote file name. Curl automatically selects the HTTP GET request method unless you use the -X, --request, or -d command-line option. Request method Every HTTP request contains a "method I use Ubuntu and installed cURL on it. Jul 23, 2025 · In this article, we will learn how to make REST API requests using Curl. Jan 4, 2024 · In this article we learned how to properly perform a curl POST request with practical examples I have a server application written in ASP. The HTTP server responds with a status line (indicating if things went well), response headers and most often also a response body. May 8, 2018 · I have endpoint which returns JSON (response body). I tried it from command line and no result showed up. I want to test my Spring REST application with cURL. NET on Windows that provides a web service. Other information like headers, methods, etc. I need get by curl the response body and process it (for example using jq). Then I tried the verbose mode in curl and it giv Nov 19, 2024 · cURL is a versatile command line tool that developers use to transfer data to and from servers. Dec 10, 2022 · To make other types of HTTP requests, such as POST, PUT, and DELETE, you can use the CURLOPT_CUSTOMREQUEST option with the curl_easy_setopt() function to set the request method. example. An HTTP response however always has response headers. This article delves Feb 2, 2023 · Making a POST Request To make a POST request using cURL, you need to set the request method to POST using curl_setopt() and then pass the data to be posted in the request body. Responses Every HTTP request includes an HTTP response. An HTTP request contains a method, a path, HTTP version and a set of request headers. Below is a simple test case that asserts a non-null response when a valid POST request is sent: Jun 9, 2023 · Read this article to learn sending simple cURL GET requests or with parameters effortlessly. A libcurl-using application can tweak all those fields. $ curl -I / Lengthy HTML response bodies are a pain to get in command-line, so I'd like to get only the header as feedbac Compared to GET, POST requests are typically not cached, and the data isn’t shown in your browser history since the request data is in the body of the request. I use curl to get http headers to find http status code and also return response. Apr 26, 2025 · Content-Type: text/html; charset=UTF-8 Wrap Up cURL is a command line utility that is helpful for multiple tasks. Aug 13, 2024 · Learn how to efficiently make POST requests using cURL. com/moo. com If you use curl to POST to a site that immediately redirects you to another page, you can safely use --location (-L) and --data / --form together. curl only uses POST in the first request, and then revert to GET in the following operations. vfcbw feegb vowx nhebs wbo hjex drdkfj shyiq jzzyzlvc bxub avj cxp dubh olaus vyuwrnj