Ably Helpdesk

Getting Started 1

• What's the best way to get started with Ably

FAQ 4

• Can I see the status of the Ably service globally?
• What is your data protection policy?
• Do you have a terms of service?
• Are you HIPAA compliant?

Contacting us 2

• Our contact details
• Guide: Information we need to help you diagnose problems

Common issues 4

• SSL certificate issues communicating with Ably
• ClassNotFoundException when using Proguard with ably-java
• ably-java: "java.io.IOException: readBufferBytes failed" exception when making REST requests
• Why am I seeing a deprecation warning when serving Javascript files from your CDN?

Connections 2

• Is a connection ID globally unique?
• Can a single connection be shared across multiple browser tabs?

Platform support 1

• How do I use Ably with an Arduino?

Usage 2

• Should I use the REST or Realtime library?
• Should I use the REST API directly?

Device support 3

• Which browsers do you support with your Javascript library?
• ably-js: "Unable to parse request body" error when publishing large messages from old browsers
• Exception tracking in client libraries

Development tools 2

• Do you have a debugging or development console for testing?
• How can I debug Reactor Queues and Queue rules?

Packages & Pricing 11

• What happens if I exceed my package connection or message limits?
• Do you charge for encrypted TLS connections?
• How does Ably count peak connections?
• How does Ably count messages?
• Do you have any connection, message, rate or other limits on accounts?

See all 11 articles

SLA & 100% Uptime Guarantee 2

• Refunds if 100% service uptime not achieved
• 100% uptime guarantee

Enterprise packages 3

• Do you support custom CNAME endpoints?
• Do you support white-label browser libraries?
• Do you support dedicated isolated clusters?

Data centres 1

• Where are Ably's servers located around the world

Transports and connections 3

• Connection state recovery
• Which transports are supported?
• Do you support channel groups and multiplexing?

Ably architecture design 1

• Why does Ably have concurrent channel limits?

Security 11

• Cross-platform symmetric encryption offered by the libraries
• DOS attack prevention
• Token and Basic authentication
• Authenticated and identified clients
• Are messages sent to and received from Ably sent securely using TLS?

See all 11 articles

Protocol support and protocol adapters 8

• Do you support the Pusher protocol?
• Do you support the PubNub protocol?
• Do you support MQTT? Are you protocol agnostic?
• Can you help ease the pain of migration from another realtime service?
• Using the Ably Pusher protocol adaptor

See all 8 articles

Performance 5

• Round-trip latency and performance
• Are you able to scale indefinitely to meet demand?
• Do you have any single point of congestion that limits your global performance?
• Debugging slow REST requests
• Why is the very first publish on a realtime channel much slower than subseqent ones?

Redundancy & reliability 4

• Routing around network and DNS issues
• Message durability and QoS (Quality of Service)
• Self-healing cluster
• What happens if an Ably server is abruptly terminated or crashes?

Keys and tokens 3

• What is an app API key
• Setting up and managing API keys
• What is the maximum length for a token string?

Accounts and apps 7

• What is the relationship between Accounts and Apps
• How do I access my app dashboard
• What are channel rules and how can I use them in my app?
• How do I access my account dashboard
• How do I access my app dashboard if I am a Heroku add-on user?

See all 7 articles

User management 3

• What is the difference between an account owner, an admin and a standard user on my account
• Inviting new users to access your account
• Removing users from your account

Namespaces and naming 4

• What is a channel namespace and how can I use them?
• What restrictions exist for the name field of a channel?
• What restrictions exist for the name field of a channel namespaces?
• Are channel names and channel namespaces case-sensitive?

Messages 12

• How long are messages stored for?
• Is it possible to prevent messages published being echoed back to the publishing client?
• What is the maximum message size?
• Reliable message ordering for connected clients
• Are messages recovered if my connection drops?

See all 12 articles

Presence 5

• Can I be notified over HTTP when someone enters or leaves a channel?
• Why don't presence members leave as soon as I close a tab?
• What happens if I exceed the number of members present on a channel?
• Why do you have a limit on the number of members present on a channel?
• Can a single user be present multiple times on the same channel?

Subscribing and publishing 1

• Can I attach and subscribe to channels using wildcards?

Migrating from Pusher 1

• Is it easy to migrate from Pusher to Ably

Migrating from PubNub 1

• Is it easy to migrate from PubNub to Ably?

Reactor Message Queues 4

• Can I make changes to a queue after it has been created?
• How can I provision a new message queue?
• I upgraded but my queue still has the old message limits?
• How can I set up a Queue Rule?

Reactor Events, Webhooks and Functions 1

• How can I debug WebHooks?

Setup 4

• Where can I find my Google/Firebase Cloud Messaging API key?
• Where can I setup and configure push notifications for my app?
• How do I obtain the APNs certificates needed for iOS Push Notifications?
• Why can I not publish push notifications on channels?

Common questions 1

• Does Ably charge for smart or standard push notifications?

Client errors 1

• Error code: 40103 - Invalid use of Basic auth over non-TLS transport

Server errors 2

• Unknown error code
• 40101 Request mac does not match