Authentication doc

• Instagram works only with the http callback URL: API with only HTTP scheme into callback URL
• Using "Client-Side (Implicit) Authentication"
  • You must use responseType "token"
  • Also, be sure to uncheck the "Disable implicit OAuth" box or else this method will not work.
  • The Access token will be accessed from the URL fragment: http://your-redirect-uri#access_token=ACCESS-TOKEN
    • Use the internal web web browser technique to access the token. (See the demo app on how to do it in the webview delegate). The server redirect technique won't work as the token is in a url fragment which doesn't make it into the URL when calling a server app.

Using Server-Side Auth Method

Swift

let oAuthRedirectUrl = "http://your_server/the_php_script"
let instagram = OAuth2Swift(
    consumerKey: "key",
    consumerSecret: "secret",
    authorizeUrl: "https://api.instagram.com/oauth/authorize",
    responseType: "code" // important! Must be "code" for server-side. Client-side does not work for Instagram due to url fragment
  )
...
self.instagram.authorizeURLHandler = SafariURLHandler(viewController: vc, oauthSwift: instagram)
let handle = self.instagram.authorize(
      withCallbackURL: URL(string: self.oAuthRedirectUrl)!,
      scope: "public_content", state: "INSTAGRAM\(arc4random())",
      success: { credential, response, parameters in
        // TODO: Save params to UserDefaults
        print(parameters)
        print("AUTHORIZED INSTAGRAM === \(credential.oauthToken) ")
      }, failure: { error in
        print(error)
        print("OAUTH FAILURE: " + error.localizedDescription)
    })

PHP:

<?php
$code = $_GET['code'];
if($code == "")
	DIE("ERROR");

$curl = curl_init();
curl_setopt_array($curl, array(
    CURLOPT_RETURNTRANSFER => 1,
    CURLOPT_URL => "https://api.instagram.com/oauth/access_token",
    CURLOPT_POST => 1,
    CURLOPT_POSTFIELDS => array(
        client_id => "client_key",
	client_secret => "client_secret",
	grant_type => "authorization_code",
	redirect_uri => "http://your_server/this_script_url_same_as_above",
	code => $code
    )
));
$resp = curl_exec($curl);
curl_close($curl);
if(!$resp || $resp === ""){
	header("Location: your-app-name://oauth-swift/instagram?error=1&error_description=Sorry,%20there%20was%20an%20error");
	die;
}

$json = json_decode($resp, true);
$accessToken = $json["access_token"];
$userId = $json["user"]["id"];
$userName = $json["user"]["username"];

header("Location: your-app-name://oauth-swift/instagram?access_token=$accessToken&user_id=$userId&username=$userName");
?>