Get data from response headers

Evgeny Sporykhin

Hi all! I try to upload video on youtube and use youtube data API

I send POST request to API and receive the response, but the data which i need is in response headers

How i can get access to response headers? Try $http_headers, but it isn't return the right data

Sean Montgomery

Hi ,

The return from the API request is an object with all relavent information.

var ret = API_Request

the response headers would be inside ret.response.headers - see screenshot - https://mrkr.io/s/62865535d368286d46f30e9a/0

the environment variable $http_headers are the request headers sent to Xano, not the API request being run inside your function stack. 

Evgeny Sporykhin

yeah, but how i can get, for example, content-length in header? 

Ray Deck

 I think to accomplish your goal you want to apply the "get" filter  to ret.headers, and pass the path of "content-length"


Correction: see 's correct and detailed description of working with the array rather than object mapping below. 

Sean Montgomery

close - ret.response.headers is an array of key/value pairs in string form

$http_headers is an object where the key of each object is the header key.

You need to do a bit more work for ret.response.headers

You can use Data Manipulation - Arrays - Array.findFirstElement

Pass in the value content-length:

You can assign that to a variable called header.

Then you have the entire header in a variable. To extract the number from that, you would want to do the following

var:length = var:header|split(":")|last|trim

Evgeny Sporykhin

 thanks! i will try that

Evgeny Sporykhin

 thanks! i tried your first solution and it didnt work)

Ambroise

Here is how I managed to access headers, through a Lambda.

const headers = $env.$http_headers
console.log($env, headers);
return headers;

Ambroise

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