What are some examples of using curl in the command line?

What are some examples of using curl in the command line?

Curl is a command-line tool used to transfer data to or from a server. Here are a few examples:

1. Basic GET request: curl http://example.com
2. Download a file: curl -O http://example.com/file.txt
3. Send a POST request: curl -X POST -d 'param1=value1&param2=value2' http://example.com/submit
4. Include headers: curl -H 'Authorization: Bearer token' http://example.com/protected
5. Save output to a file: curl -o output.txt http://example.com.

How do I use curl to send JSON data?

To send JSON data using curl, you can use the -H flag to set the content type and the -d flag to include your JSON data. For example:

curl -X POST -H 'Content-Type: application/json' -d '{"key":"value"}' http://example.com/api

Can I use curl to test APIs?

Yes, curl is great for testing APIs. You can make GET, POST, PUT, DELETE requests, and more, allowing you to interact with the API endpoints directly.

What options can I use with curl?

Curl has many options! Some common ones include:

• -X to specify the request method (GET, POST, etc.)
• -d to send data in the request body
• -H to add headers
• -O to save output to a file
• -I to fetch headers only.