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].
![6 Things You Didn’t Know About Firefox OS]()
Firefox OS is all over the tech news and for good reason: Mozilla's finally given web developers the platform that they need to create apps the way they've been creating them for years -- with CSS, HTML, and JavaScript. Firefox OS has been rapidly improving...
![Page Visibility API]()
One event that's always been lacking within the document is a signal for when the user is looking at a given tab, or another tab. When does the user switch off our site to look at something else? When do they come back?
![Checkbox Filtering Using MooTools ElementFilter]()
When I first wrote MooTools ElementFilter, I didn't think much of it. Fast forward eight months later and I've realized I've used the plugin a billion times. Hell, even one of the "big 3" search engines is using it for their maps application.
![Using Opacity to Show Focus with jQuery]()
A few days back I debuted a sweet article that made use of MooTools JavaScript and opacity to show focus on a specified element. Here's how to accomplish that feat using jQuery.
The jQuery JavaScript
There you have it. Opacity is a very simple but effective...
