Why does my opentok method does not work in firebase? - firebase

Question

I use a firebase function which executes OpenTok SDK when it is triggered. The function creates a session. I was able to create a session successfully on my local server, but when I put it in production – in firebase- following error occurs:
Error creating session: Error: Failed to createSession. Error: The request failed: Error: getaddrinfo EAI_AGAIN api.opentok.com:443
at createSessionCallback (/srv/node_modules/opentok/lib/opentok.js:1125:16)
at Request._callback (/srv/node_modules/opentok/lib/client.js:59:14)
at self.callback (/srv/node_modules/request/request.js:185:22)
at emitOne (events.js:116:13)
at Request.emit (events.js:211:7)
at Request.onRequestError (/srv/node_modules/request/request.js:877:8)
at emitOne (events.js:121:20)
at ClientRequest.emit (events.js:211:7)
at TLSSocket.socketErrorListener (_http_client.js:401:9)
at emitOne (events.js:116:13)
Other methods of this third party SDK like token generation also works on firebase but the method createSession fails. Can you help me please?
exports.dbUpdate = functions.database.ref('/test/{pushId}/text').onUpdate((change, context) => {
const beforeData = change.before.val(); // data before the write
const afterData = change.after.val();
if (beforeData == afterData) {
console.log("Text did not change");
return null;
}
opentok = new OpenTok("...", "...");
var sessionId;
opentok.createSession({
mediaMode: "routed"
}, function(error, session) {
if (error) {
console.log("Error creating session:", error)
token = "Failed";
} else {
sessionId = session.sessionId;
token = opentok.generateToken(sessionId);
}
});
return change.after.ref.parent.child('neuertest').set(token);
});
//The same code works on local server

Answer 1

The free Spark plan only allows for HTTP calls to Google services (see Cloud Functions on https://firebase.google.com/pricing/)
You’ll need to upgrade your plan to be able to run your function