How to Add a Header to a curl Request
curl is one of those great utilities that's been around seemingly forever and has endless use cases. These days I find myself using curl to batch download files and test APIs. Sometimes my testing leads me to using different HTTP headers in my requests.
To add a header to a curl request, use the -H flag:
curl -X 'GET' \
'https://nft.api.cx.metamask.io/collections?chainId=1' \
-H 'accept: application/json' \
-H 'Version: 1'
You can add multiple headers with multiple -H uses. Header format is usually [key]: [value].
![Create Spinning Rays with CSS3: Revisited]()
![JavaScript Promise API]()
While synchronous code is easier to follow and debug, async is generally better for performance and flexibility. Why "hold up the show" when you can trigger numerous requests at once and then handle them when each is ready? Promises are becoming a big part of the JavaScript world...
![Send Email Notifications for Broken Images Using MooTools AJAX]()
One of the little known JavaScript events is the image onError event. This event is triggered when an image 404's out because it doesn't exist. Broken images can make your website look unprofessional and it's important to fix broken images as soon as possible.
![Translate Content with the Google Translate API and JavaScript]()
Note: For this tutorial, I'm using version1 of the Google Translate API. A newer REST-based version is available.
In an ideal world, all websites would have a feature that allowed the user to translate a website into their native language (or even more ideally, translation would be...
