itach
v2.0.1
Published
Simple Node.js module to send commands to GlobalCache iTach devices. Should handle reconnection (if connection lost), resending (on busyIR), etc.. but not abstract away the iTach API.
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node-itach
Simple Node.js module to send commands to GlobalCache iTach devices. Should handle reconnection (if connection lost), resending (on busyIR), etc.. but not abstract away the iTach API (https://www.globalcache.com/files/docs/API-iTach.pdf).
Note: Only testing with IP2IR device but it should work with any of the itach devices.
Installation
npm install itach --save
Example
var itach = require("itach");
itach.on("connect", async () => {
console.log("Connected to itach");
try {
const result = await itach.send("sendir:..")
} catch (error) {
// Some error happened
}
});
itach.connect({ host: "itach", reconnect: true });
API
All commands are enqueued and are only sent when a connection to an itach device is present. The queue is paused if connection is lost and then resumed when connection is restored.
If iTach is already busy sending IR from another connection it will retry every options.retryInterval until options.sendTimeout is reached.
setOptions(options)
Changes options
Arguments
options
- (Mandatory) An options Objectoptions.host
- (Default: null) Hostname/IP to connect tooptions.port
- (Default: 4998) Port to connect tooptions.reconnect
- (Default: false) Try to reconnect if connection is lostoptions.reconnectInterval
- (Default: 3000) Time (in milliseconds) between reconnection attemptsoptions.connectionTimeout
- (Default: 3000) Timeout (in milliseconds) when connection attempt is assumed to be failed. error event will be emitted.options.retryInterval
- (Default: 99) Time (in milliseconds) between resending attempts (when busyIR is received)options.sendTimeout
- (Default: 500) Time (in milliseconds) after which a sent command will be assumed lost
Examples
itach.setOptions({ host: "itachIP2IR", reconnect: true });
connect(options)
Connects to itach device and optionally changes options before connecting.
Arguments
options
- An options Object (see setOptions method)
Examples
itach.connect();
itach.connect({ host: "itachIP2IR", reconnect: true });
close(options)
Closes the connection to the itach device. Note: If reconnect is enabled the connection will not stay closed. If you want that you have to pass in { reconnect: false }. Also note: You can change any options.
Example
itach.close();
itach.close({ reconnect: false });
send(data)
Sends a itach api command to be executed.
Arguments
data
- (Mandatory) String containing a itach command (carriage return not required)
Returns
A promise that will resolve to the result of the sent command.
Example
try {
const result = await itach.send('sendir,1:1,1,38400,1,1,347,173,22,22,22,65,22,22,22,22,22,65,22,22,22,22,22,22,22,22,22,22,22,65,22,22,22,65,22,65,22,22,22,22,22,22,22,22,22,65,22,22,22,22,22,22,22,22,22,22,22,65,22,65,22,22,22,65,22,65,22,65,22,65,22,65,22,1657')
console.log(result) // completeir...
} catch (error) {
// handle error
}
Events
connect
- Connection to itach has been established and commands will now be sentclose
- Connection to itach has been closederror
- Some error with the socket connection
Example
itach.on("connect", function() {
// Connection established
});
itach.on("close", function() {
// Connection closed
});
itach.on("error", function (error) {
// Error occurred
});
TODO
LINKS
- API: http://www.globalcache.com/files/docs/API-iTach.pdf