mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-09-20 07:27:25 +02:00
485223c590
This sink is compatible with the HTTP API of cc-metric-store.
Example config.json section:
```
"sink": {
"type": "http",
"host": "localhost",
"port": "8080",
"database": "api/write",
"password": "<JWT>"
},
```
The password/JWT can be omitted.
69 lines
1.2 KiB
Go
69 lines
1.2 KiB
Go
package sinks
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import (
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"bytes"
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"errors"
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"fmt"
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"net/http"
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"time"
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lp "github.com/influxdata/line-protocol"
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)
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type HttpSink struct {
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Sink
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client *http.Client
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url, jwt string
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encoder *lp.Encoder
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buffer *bytes.Buffer
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}
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func (s *HttpSink) Init(config SinkConfig) error {
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if len(config.Host) == 0 || len(config.Port) == 0 {
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return errors.New("`host`, `port` and `database` config options required for TCP sink")
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}
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s.client = &http.Client{}
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s.url = fmt.Sprintf("http://%s:%s/%s", config.Host, config.Port, config.Database)
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s.port = config.Port
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s.jwt = config.Password
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s.buffer = &bytes.Buffer{}
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s.encoder = lp.NewEncoder(s.buffer)
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s.encoder.SetPrecision(time.Second)
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return nil
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}
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func (s *HttpSink) Write(point lp.MutableMetric) error {
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_, err := s.encoder.Encode(point)
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return err
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}
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func (s *HttpSink) Flush() error {
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req, err := http.NewRequest(http.MethodPost, s.url, s.buffer)
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if err != nil {
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return err
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}
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if len(s.jwt) != 0 {
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req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", s.jwt))
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}
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res, err := s.client.Do(req)
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s.buffer.Reset()
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if err != nil {
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return err
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}
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if res.StatusCode != 200 {
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return errors.New(res.Status)
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}
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return nil
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}
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func (s *HttpSink) Close() {
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s.client.CloseIdleConnections()
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}
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