Server for collecting metrics and alerting

Implemented agent and server

Flags must be specified to run:

server's flags:

• -a - address and port to run server(default: localhost:8080)
• -l- logging level(default: info)
• -f - path to store file containing metrics in JSON(default: tmp/metrics-db.json)
• -r - load saving data(default: true)
• -a - interval of storing data on disk(default: 5 sec)
• -d - database's dsn connection configs(default: empty)

agent's flags:

• -a - address and port to run server(default: localhost:8080)
• -r- interval of sending metrics to the server(default: 10 sec)
• -p - nterval of polling metrics from the runtime(default: 2 sec)

The service allows:

• to collect, store and display metrics
• set up alerts

What is going to be added:

• sending notifications under predefined conditions

API(Endpoints list of server):

1. Ping, check service status Get /ping Response

Status code: 200 or 400

2. Send batch of metrics Post /updates

Example:

{
[
    {
    "id": "t",
    "type": "counter",
    "delta": 100033330
    },
    {
    "id": "t2",
    "type": "gauge",
    "value": 77777.1943
    }
]
}

Response

Status code: 200, 400, 500

3. Send metrics Post /update Post /updates

Example:

{
"id": "t",
"type": "counter",
"delta": 100033330
}

Response

Status code: 200,400, 404

{
"id": "t",
"type": "counter",
"delta": 100033330,
"value": 0
}