Curl Post: Ways To CURL Post With Command Line

So, this guideline is all about the Curl post. This is the powerful command-line utility that will also allow you to transfer data to or from a server or URL. There is one common function that you have to use by the developers. You have to make a POST request with the curl. This is what we are going to cover here.

Now, we will also keep things fairly simple and then show three examples to make a POST request with curl from the command line. This is with syntax with and without data, and then also to a form.

Explain What is cURL?

A cURL is basically using and then transfer data by using the Internet Protocols for the given URL. Also, a Curl is a Client-side program. This will also name as the cURL, c also stands for Client, and then URL indicates the curl works with the URL.

Now, the curl project has a curl command line and then also a libcurl library. So, in this article, we will also focus on the curl command line.

The Curl also deals with a bunch of Internet Protocols just like the HTTP, FTP, SMTP, TELNET, and so on. By using this article, we will also deal only with making HTTP requests from Curl.

Ways to Use this for HTTP Requests:

Now, I have a built 2 REST API by Endpoint using NodeJS. This is also one endpoint that supports and then gets the request. Some of the other endpoints also support POST requests.

Using this article, we will be calling the GET and POST endpoints using Curl. You have to Please clone the NodeJS code into your local from this Github repo. This repo has also given the instructions on how to clone and then run the NodeJS code.

So, after cloning the code. You have to go into the project folder and then start the application using the following command.

node server.js

So, This application also runs on to the localhost port 3000.

How The CURL POST Request the Command Line Syntax?

Now, you can also make a curl POST request with or without data. This will also depend on what you are attempting to do. You have to remember that this is by using the proper syntax capitalization that matters.

A curl post request with no data:

curl -X POST http://URL/example.php

To request with data:

curl -d "data=example1&data2=example2" http://URL/example.cgi

The curl POST to a form:

curl -X POST -F "name=user" -F "password=test" http://URL/example.php

Now, with a file:

curl -X POST -F "[email protected]/path/example.gif" http://URL/uploadform.cgi

So, at the same time, you can also download the file with the curl tool. This is by using a different command string.

To Use the JSON data:

curl -H "Content-Type: application/json" -X POST -d '{"user":"bob","pass":"123"}' http://URL/

Now, For further curl specifics or details. We refer to the curl manual or help page:

curl --help curl --manual

Also See: Command Line Cheat Sheet Wallpaper: Way to Learn the Commands with Background image

Conclusion:

This will also name as the cURL, c also stands for Client, and then URL indicates the curl works with the URL. Now, the curl project has a curl command line and then also a libcurl library. So, in this article, we will also focus on the curl command line. The Curl also deals with a bunch of Internet Protocols just like the HTTP, FTP, SMTP, TELNET, and so on.

You will also Know this in a better way to make a post request with the cURL? So, let us know in the comments. Then we can also check out some interesting specific uses of the curl command here.