About this library

The library is an implementation of zabbix_sender utility, which sends items data to zabbix server using the zabbix trapper protocol. Because the library is a pure Node.js/Typescript implementation, it doesn't require invocation of zabbix_sender utility. So there is no any child_process involved!

Basic usage example

import { ZabbixSender } from '@bettercorp/node-zabbix-sender'
const Sender = new ZabbixSender('zabbix.example.com');

// Add items to request
let req = Sender.add('webserver', 'httpd.running', 0);
req.add('mysql.ping', 1, 'dbserver');

// Add item with default host
req.add('httpd.logs.size', 1024);

// Add item with timestamp 
req.add('httpd.running', 1, 1634645976, 'webserver');

// Add item with timestamp and nanoseconds
req.add('mysql.ping', 0, 1634645976, 758000000, 'dbserver');

// Add item with default host with timestamp. The host has to be set to an empty string in this case.
req.add('httpd.logs.size', 1024, 1634645976);

// Send the items to zabbix trapper
console.dir(await req.send());

Another example, with addItem & send combined

import { ZabbixSender } from '@bettercorp/node-zabbix-sender'  
const Sender = new ZabbixSender('zabbix.example.com');  

// Here is an example: add item and & send it  
console.log(await Sender.add('cpu_load', 0.15).send());  

// Or just send a single item quickly  
console.log(await Sender.send('cpu_load', 0.15));

Instance options

Whenever you create a new instance of zabbix sender, there are several property options:

(host: string, port: number = 10051, timeout: number = 5000, timestamps: boolean = false, nsTiming: boolean = false, hostname: string = hostname()))

• host and port are self-explanatory, the zabbix server host & port
• timeout is a socket timeout in milliseconds, when connecting to the zabbix server
• timestamps when you add, timestamp will be added as well
• nsTiming will set timestamps to true, nanoseconds portion of the timestamp seconds will be added to the item
• hostname a target monitored host in zabbix. used when you don't specify the host when you add, see example above

Instance methods

(item: ZabbixSenderItem)  
(key: string, value: number)  
(key: string, value: number, hostname: string)  
(key: string, value: number, timestamp: number)  
(key: string, value: number, timestamp: number, hostname: string)  
(key: string, value: number, timestamp: number, ns: number)  
(key: string, value: number, timestamp: number, ns: number, hostname: string)  

Adds an item to the request payload. ns or timestamp can only be set if timestamps and nsTiming are also set to true respectively. If timestamps and nsTiming are true respectively but not set in this request, the current system time will be used.
The return value is self instance, so chaining can be used.

.length

Just returns the number of items.

send()

Sends all items that were added to the request payload. In case of error, the previously added items will be kept, for the next send invocation.

Protocol References

• https://www.zabbix.com/documentation/6.0/manual/appendix/items/trapper
• https://www.zabbix.com/documentation/6.0/manual/appendix/protocols/header_datalen

License

Licensed under the MIT License. See the LICENSE file for details.