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I am trying to integrate video call to my web application implemented using Ruby on Rails and opentok. Currently the app throws an error for "Create Session"
Failed to connect to OpenTok. Response code: Authentication failed while creating a session. API Key: 3548532

class RoomsController < ApplicationController
before_filter :config_opentok,:except => [:index]

require "opentok"

def index
 @rooms = Room.where(:public => true).order("created_at DESC")
 @new_room = Room.new
end

def create
 api_key = "3548532" # Replace with your OpenTok API key.
 api_secret = "my secret key" # Replace with your OpenTok API secret.

 opentok = OpenTok::OpenTok.new api_key, api_secret
 session = opentok.create_session :media_mode => :routed
 session_id = session.session_id
 params[:room][:sessionId] = session.session_id

 @new_room = Room.new(params[:room])

 respond_to do |format|
 if @new_room.save
 format.html redirect_to("/party/"+@new_room.id.to_s) 
 else
 format.html render :controller => ‘rooms’, :action => “index” 
 end
 end
end

def party
 @room = Room.find(params[:id])

 @tok_token = @opentok.generate_token @room.sessionId 
end

end

Party.html.erb:

 <div id="invitation">Invite your friends! Share the url of this page http://localhost:3030/party/<%= @room.id %></div>
<div id="videobox">

</div>
<script src="http://static.opentok.com/v0.91/js/TB.min.js" type="text/javascript"></script>
<script type="text/javascript">
 var apiKey = 3548532;
 var sessionId = "<%= @room.sessionId %>";
 var token = "<%= @tok_token %>";

 var session;


TB.setLogLevel(TB.DEBUG);
//session.connect(apiKey, token);
 var session = TB.initSession(sessionId);
 session.addEventListener('sessionConnected', sessionConnectedHandler);
 session.addEventListener('streamCreated', streamCreatedHandler);
 session.connect(apiKey, token);


 var publisher;
 function sessionConnectedHandler(event) 
 publisher = TB.initPublisher(apiKey, 'videobox');
 session.publish(publisher);

 // Subscribe to streams that were in the session when we connected
 subscribeToStreams(event.streams);
 

 function streamCreatedHandler(event) 
 // Subscribe to any new streams that are created
 subscribeToStreams(event.streams);
 

 function subscribeToStreams(streams) 
 for (var i = 0; i < streams.length; i++) 
 // Make sure we don't subscribe to ourself
 if (streams[i].connection.connectionId == session.connection.connectionId) 
 return;
 

 // Create the div to put the subscriber element in to
 var div = document.createElement('div');
 div.setAttribute('id', 'stream' + streams[i].streamId);
 document.body.appendChild(div);

 // Subscribe to the stream
 session.subscribe(streams[i], div.id);
 
 
</script>

Why is the authentication failing?
I trying to follow the instructions from https://github.com/loganathan-s/vide0-chat-using-tokbox

Thank you

TokBox Developer Evangelist here.

Based on the sample application you shared, it looks like you're using a deprecated version (v0.91) of the OpenTok JS SDK.

Here's the link to the latest OpenTok JS SDK: https://static.opentok.com/v2/js/opentok.min.js

Please try the code below to create a session, connect, publish, and subscribe:

const session = OT.initSession(apiKey, sessionId);
const publisher = OT.initPublisher();

session.on(
 streamCreated: event => 
 session.subscribe(event.stream);
 ,
 sessionConnected: event => 
 session.publish(publisher);
 ,
);

session.connect(token, (err) => 
 if (err) 
 console.log(`There was an error connecting to the session: $err`);
 
);

Please note the following key changes:

• The global variable used to refer to the OpenTok object is OT not TB
  


• The initSession method requires both the apiKey and the sessionId instead of just the apiKey.


• The connect method only requires the token instead of the apiKey, and token.


• The initPublisher method does not require the apiKey.


• The addEventListener methods have been deprecated, please use .on to set event listeners.

For more information on the web samples, please refer to the following sample project.