I’m using this code to get a token from Spotify’s Web API:
<?php $url = 'https://accounts.spotify.com/api/token'; $method = 'POST'; $credentials = "{Client ID}:{Client Secret}"; $headers = array( "Accept: */*", "Content-Type: application/x-www-form-urlencoded", "User-Agent: runscope/0.1", "Authorization: Basic " . base64_encode($credentials)); $data = 'grant_type=client_credentials'; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $data); $response = curl_exec($ch); ?>
That results in this showing up in the browser:
{"access_token":"{token}","token_type":"Bearer","expires_in":3600}
Great! But how do I extract “{token}” from the response and use it as a parameter in a request to the API? For example in the request to https://api.spotify.com/v1/users/{user_id}/playlists which needs the token in the header field.
Thanks!
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Answer
You need to decode the JSON:
$response = json_decode($response, true);
Then you’ll have an array with the values.
$token = $response['access_token'];
Also, you’re missing a necessary option to obtain the response in this way:
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
If not defined, you will get a boolean value instead of the response.