What is the curl option to set a body key-value parameter?

To set a body key-value parameter in curl, you can use the -d or --data option. Here is a step-by-step guide:

1. Open your terminal or command prompt.
2. Type curl followed by the URL you want to send the request to. For example: curl https://example.com.
3. After the URL, type -d or --data.
4. Following -d or --data, type your key-value pair in quotes. For example: -d "key=value".
5. Press Enter to send the request.

So, the full command would look something like this:

curl https://example.com -d "key=value"

This will send a POST request to https://example.com with a body that includes key=value. If you have multiple key-value pairs to include in the body, you can separate them with an ampersand (&):

curl https://example.com -d "key1=value1&key2=value2"