curl-request tagged requests and articles

Categorized request examples and articles tagged with [curl-request] keyword
How do I send a GET request using Curl?
To make a GET request using Curl, run the curl command followed by the target URL. Curl automatically selects the HTTP GET request method unless you use the -X, --request, or -d command-line option. The target URL is passed as the first command-line option. To add additional HTTP headers, use the -H command line option. Curl automatically adds an Accept: */* request header if no additional headers are passed, which tells the server that the Curl client can accept data in any format. In this Curl GET example, we send a Curl request to the ReqBin echo URL. Click Run to execute the Curl GET Request example online and see the results.

How do I convert Curl to HTTP Request?
Convert the Curl command to the HTTP request using ReqBin. Enter your Curl request, click the Submit button to check if you entered the Curl command correctly, and then switch to the Raw tab to see the generated HTTP request. You can also convert Curl requests to PHP, Python, JavaScript, and C # code. Click Run to execute the Convert Curl to HTTP Request online and see the results.

How do I send OPTIONS request using Curl?
To make an OPTIONS request with Curl, you need to pass the -X OPTIONS command-line parameter to the Curl request. Browsers send OPTIONS requests when making a CORS request to another origin. The OPTIONS request does not return any data. All information is returned in the response headers. In this Curl OPTIONS Request Example, we send an OPTIONS request to the ReqBin echo URL. Click Run to execute the Curl OPTIONS request online and see the results.

How can I send a CORS request using Curl?
To make a CORS request using Curl, you need to pass an Origin HTTP header that specifies the origin of the request (domain, scheme, or port) other than the destination server address and, optionally, the required HTTP methods and response headers. To pass additional headers to Curl, use the -H command-line option, for example -H "Origin: [URL]" for the Origin header. In this Curl CORS Example, we send a request to the ReqBin echo URL and pass the Origin header with a subdomain to the server. Click Run to execute the Curl CORS request online and see the results.

How do I post XML using Curl?
To post XML using Curl, you need to pass XML data to Curl with the -d command line option and specify the data type in the body of the POST request message using the -H Content-Type: application/xml command line parameter. In this Curl POST XML example, we also pass the Accept: application/xml request header to tell the server that the Curl client expects XML from the server. Click Run to execute the Curl POST XML Example online and see the results.

How to send a Curl request with username and password?
To make a Curl request with user credentials (with username and password ), you need to use the --user "username:password" command line parameter and pass the username and password to Curl. The username and password are separated by colons. In this Curl Request with User Сredentials Example, we send a username and password to the ReqBin echo URL. Click Run to execute the Curl with Username and Password example online and see the results.

How do I send a HEAD request using Curl?
To make an HTTP HEAD request with Curl, you need to use the -I or --head command-line parameter. The -I command-line parameter tells Curl to send an HTTP HEAD request to receive only HTTP headers. The HEAD request is very similar to a GET request, except that the server only returns HTTP headers without a response body. In this Curl HEAD request example, we send a HEAD request to the ReqBin echo URL. Click Run to execute the Curl HTTP HEAD Request Example online and see the results.

Top 12 Curl Commands
Curl is a popular command-line utility for transferring data to or from a server using over 25+ protocols. The Curl command-line tool provides several advanced options such as user authentication, proxy support, resuming transmission, limiting bandwidth and transfer rates, and more. Curl commands work without user interaction and are therefore ideal for use in automation scenarios. This article will go over the 12 most essential Curl commands for day-to-day use for making requests over HTTP/HTTPS protocols.

How to convert Curl to Python request?
You can convert Curl commands to Python requests using the ReqBin Online Curl to Python convertor. The Curl to Python Converter uses the Python Requests Library for the generated code. Test your Curl commands online with our online Curl client and then convert Curl syntax to Python code with just one click. Curl Converter automatically generates valid Python code using the Python request library for all provided Curl HTTP headers and Curl data. Enter the Curl command, click Run to execute the command online, and check the results. With our Curl to Python Converter, you can convert almost any Curl command to Python code with just one click. Type your Curl command, and click on Run to generate Python code online.

How do I use curl -u option?
The curl -u (or --- user) command sends the user's basic authentication data to the server. The user's credentials must be provided directly after the -u command line switch. The curl -u command is used to authorize a user using the HTTP basic authentication scheme that is built into the HTTP protocol. Curl converts the provided user authentication data into a standard Authorization: Basic {base64string} HTTP header and sends it to the server along with the other data in your request. In this Curl -u example, we send a request with user credentials to the ReqBin echo URL. Click Run to execute the Curl Basic Authentication example online and see the results.

How do I use curl -k option?
The curl -k (or --insecure) command line option ignores invalid and self-signed certificate errors. This setting allows Curl to make an "insecure" SSL connection and skip SSL certificate checks while you still have an SSL-encrypted connection. This may be useful for development purposes. Making an HTTPS request to a resource with an invalid or expired SSL certificate without the -k or --insecure option will result in curl: "(60) SSL certificate: invalid certificate chain: error message". In this Curl -k example, we request a URL with an expired SSL certificate and still get a response. Click Run to execute the Curl -k example online and see the result.

How do I use curl -v option?
The curl -v command performs an HTTP request and displays detailed information (verbose mode) about each step of the request and server response. This command is useful for debugging network problems, monitoring and analyzing the interaction between client and server when making HTTP requests. In this Curl -v example, we request the ReqBin echo URL. Click Run to execute the Verbose Mode online and see the result.

Using Curl -H Option
An example of making a Curl request to the https://reqbin.com/echo/post/json API endpoint using the POST HTTP method.