Your device can receive commands from GadgetKeeper in few simple steps:
1. Define remote method or property
Then creating/editing a property or method specify "remote" as its type:
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2. Define connection and implement RPC handler
Now you need to decide what protocol GadgetKeeper will use to communicate with your Thing. You have couple of choices:
| Connector | Communication Protocol | RPC Protocol | Description |
|---|---|---|---|
| JSON-RPC over Messaging | MQTT, XMPP, STOMP | JSON-RPC 2.0 |
Thing uses GadgetKeeper message broker to exchange messages. GadgetKeeper servers must be reachable from Thing. |
| JSON-RPC over MQTT | MQTT | JSON-RPC 2.0 |
GadgetKeeper and Thing use external MQTT broker to exchange messages. MQTT message broker must be reachable from both Thing and GadgetKeeper. |
| JSON-RPC over TCP | TCP | JSON-RPC 2.0 |
Thing creates a TCP socket server, GadgetKeeper connects to it to exchange messages. Thing must be reachable from GadgetKeeper servers. |
| JSON-RPC over HTTP | HTTP | JSON-RPC 2.0 |
Thing creates a HTTP server, GadgetKeeper connects to it to exchange messages. Thing must be reachable from GadgetKeeper servers. |
See connectors details on how to configure and implement RPC handler.