Read goal with javascript

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Read goal with javascript

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#1 by (1 votes)

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Many google apis use javascript to work, in authentication they use <meta name="google-signin-client_id" content="api-key"> and javascript le this to authenticate, how do they do for JavaScript to read this?

javascript

asked by anonymous 03.07.2018 / 14:24

1 answer

Is it possible to change the "href" of the rel="stylesheet" link of an iframe, or even change the class / style of an iFrame element? Error trying to load a mat-table with angle 6

score 1 · Accepted Answer

You can use document.querySelector to select elements from the DOM / page and extract what you are looking for.

To read the example you indicated you can do this:

var apiKey = document.querySelector('[name="google-signin-client_id"]').getAttribute('content');
console.log(apiKey);

What this code does, step by step:

document.querySelector - search the page for an element that matches the passed selector, where the name attribute: _ "google-signin-client_id" _
getAttribute - fetch this element from the value of the attribute passed to the method