curl -H
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curl -H is a command line option for the curl command that takes a single parameter of an extra header to include in the request.
Examples
curl -H "Accept: application/json"
To set multiple headers, repeat the option, e.g.:
curl -H "Accept: application/json" -H "Content-Type: application/json"
Language-Specific curl Equivalents
PHP
Equivalent in PHP for setting a header in a curl handler:
curl_setopt($c, CURLOPT_HTTPHEADER, ['Accept: application/json']);
Equivalent in PHP for setting multiple curl headers in a curl handler:
curl_setopt($c, CURLOPT_HTTPHEADER, ['Accept: application/json', 'Content-Type: application/json']);
IndieWeb Applications
There are several uses of setting HTTP headers within various IndieWeb building blocks
- Sending an IndieAuth access token to a Micropub endpoint to create a post: curl -H "Authorization: Bearer XXXXXXXX"