Is there a way to fetch images by hashtag without authentication, using the instagram API?
as far as I saw, it is not possible...
let's say using php
for example: I want to launch a cron task, which will be fetching photos by some specific hardcoded hashtag, but doing this will require the access_token, which as I see can be gotten only when the user manually authenticates
the question is: it is possible to use instagram api, without user interaction?
and if yes, how?
Well Since the acquisition of instagram by facebook and Policy Update which was implemented on June 1st 2016. "You cannot" Officially use the API without approving your app from instagram.
You can use library czPechy/instagramProfileCrawler for crawling profile without API.
With composer you install
$ composer require czpechy/instagramprofilecrawler
And now you can use this
$client = new \czPechy\instagramProfileCrawler\Client('instagramUsername');
$profile = $client->getProfile();
This is html crawler, but it has been working for over a year