Listen for Data Changes in Real-time with a GraphQL Subscription

Having some issues here with the subscription: could not connect to websocket endpoint wss://funded-pet-library.moonhighway.com/.

Looks like the default connections over a websocket with Apollo Server is 10 unless you specify more. I updated the code so that this wouldn't be a problem even if many people are connected. Thanks for the heads up!

Hi @Eve, here Subscriptions are not testable "message": "Cannot read property 'headers' of undefined"

Make sure you are "logged in" and have your token present in the headers. That should resolve the problem! Thanks!

Hi, I am having an issue connecting to websocket from my browser. Getting following error:

{
  "error": "Could not connect to websocket endpoint wss://funded-pet-library.moonhighway.com/graphql. Please check if the endpoint url is correct."
}

@Vui I got the same error but went ahead to write the checkOut and checkIn mutations and I got the desired response for the subscription

Hello, Having some issues here with the subscription: { "error": "Could not connect to websocket endpoint wss://funded-pet-library.moonhighway.com/graphql. Please check if the endpoint url is correct." } /* Endpoint: https://funded-pet-library.moonhighway.com/

*/

{ "error": "Could not connect to websocket endpoint wss://pet-library.moonhighway.com/graphql. Please check if the endpoint url is correct." }