Golang InfluxDB client uses _field key write point-Golang-php.cn

Golang InfluxDB client uses _field key write point

WBOY

Release： 2024-02-06 11:33:04

forward

835 people have browsed it

Golang InfluxDB 客户端使用 _field 键写入点

Question content

I want to write some InfluxDB with this signature:

{
"_field": "some_uuid",
"_value": float64,
"_time": "2006-01-02T15:04:05.000Z"
}

Copy after login

But the uuid is written to the "field" key instead of "_field", and the "_field" key has a default value - "value". How can I fix it?

This is my sample code:

import (
  "fmt"
  influxdb2 "github.com/influxdata/influxdb-client-go/v2"
  "time"
)

type TagData struct {
    TagId     string  `json:"tag_id"`
    Value     float64 `json:"value"`
    Timestamp string  `json:"timestamp"`
}

func main() {
    inflClient := influxdb2.NewClient("my_url", "my_token")
    writeAPI := inflClient.WriteAPI("my_org", "my_bucket")

    data := TagData{
        TagId:     "d8f623a9-c255-4e0d-9c2f-126056875cef",
        Value:     300,
        Timestamp: "2023-12-11T15:35:42.343Z",
    }
    parsedTime, err := time.Parse("2006-01-02T15:04:05.000Z", data.Timestamp)
    if err != nil {
        fmt.Println("Error parsing time:", err)
        return
    }
    point := influxdb2.NewPointWithMeasurement("data").
        AddTag("field", data.TagId).
        AddField("value", data.Value).
        SetTime(parsedTime.UTC())
    writeAPI.WritePoint(point)
    writeAPI.Flush()
    inflClient.Close()
}

Copy after login

Correct answer

If anyone has the same problem - possible solutions are:

point := influxdb2.NewPointWithMeasurement("your_measurement").
    AddField(data.TagId, data.Value).
    SetTime(parsedTime.UTC())

Copy after login

point := influxdb2.NewPoint("your_measurement",
    map[string]string{},
    map[string]interface{}{data.TagId: data.Value},
    parsedTime.UTC())

Copy after login

The above is the detailed content of Golang InfluxDB client uses _field key write point. For more information, please follow other related articles on the PHP Chinese website!