/usr/share/gocode/src/github.com/influxdata/influxdb/client/v2/example_test.go is in golang-github-influxdb-influxdb-dev 1.0.2+dfsg1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import (
"fmt"
"math/rand"
"os"
"time"
"github.com/influxdata/influxdb/client/v2"
)
// Create a new client
func ExampleClient() {
// NOTE: this assumes you've setup a user and have setup shell env variables,
// namely INFLUX_USER/INFLUX_PWD. If not just omit Username/Password below.
_, err := client.NewHTTPClient(client.HTTPConfig{
Addr: "http://localhost:8086",
Username: os.Getenv("INFLUX_USER"),
Password: os.Getenv("INFLUX_PWD"),
})
if err != nil {
fmt.Println("Error creating InfluxDB Client: ", err.Error())
}
}
// Write a point using the UDP client
func ExampleClient_uDP() {
// Make client
config := client.UDPConfig{Addr: "localhost:8089"}
c, err := client.NewUDPClient(config)
if err != nil {
fmt.Println("Error: ", err.Error())
}
defer c.Close()
// Create a new point batch
bp, _ := client.NewBatchPoints(client.BatchPointsConfig{
Precision: "s",
})
// Create a point and add to batch
tags := map[string]string{"cpu": "cpu-total"}
fields := map[string]interface{}{
"idle": 10.1,
"system": 53.3,
"user": 46.6,
}
pt, err := client.NewPoint("cpu_usage", tags, fields, time.Now())
if err != nil {
fmt.Println("Error: ", err.Error())
}
bp.AddPoint(pt)
// Write the batch
c.Write(bp)
}
// Ping the cluster using the HTTP client
func ExampleClient_Ping() {
// Make client
c, err := client.NewHTTPClient(client.HTTPConfig{
Addr: "http://localhost:8086",
})
if err != nil {
fmt.Println("Error creating InfluxDB Client: ", err.Error())
}
defer c.Close()
_, _, err = c.Ping(0)
if err != nil {
fmt.Println("Error pinging InfluxDB Cluster: ", err.Error())
}
}
// Write a point using the HTTP client
func ExampleClient_write() {
// Make client
c, err := client.NewHTTPClient(client.HTTPConfig{
Addr: "http://localhost:8086",
})
if err != nil {
fmt.Println("Error creating InfluxDB Client: ", err.Error())
}
defer c.Close()
// Create a new point batch
bp, _ := client.NewBatchPoints(client.BatchPointsConfig{
Database: "BumbleBeeTuna",
Precision: "s",
})
// Create a point and add to batch
tags := map[string]string{"cpu": "cpu-total"}
fields := map[string]interface{}{
"idle": 10.1,
"system": 53.3,
"user": 46.6,
}
pt, err := client.NewPoint("cpu_usage", tags, fields, time.Now())
if err != nil {
fmt.Println("Error: ", err.Error())
}
bp.AddPoint(pt)
// Write the batch
c.Write(bp)
}
// Create a batch and add a point
func ExampleBatchPoints() {
// Create a new point batch
bp, _ := client.NewBatchPoints(client.BatchPointsConfig{
Database: "BumbleBeeTuna",
Precision: "s",
})
// Create a point and add to batch
tags := map[string]string{"cpu": "cpu-total"}
fields := map[string]interface{}{
"idle": 10.1,
"system": 53.3,
"user": 46.6,
}
pt, err := client.NewPoint("cpu_usage", tags, fields, time.Now())
if err != nil {
fmt.Println("Error: ", err.Error())
}
bp.AddPoint(pt)
}
// Using the BatchPoints setter functions
func ExampleBatchPoints_setters() {
// Create a new point batch
bp, _ := client.NewBatchPoints(client.BatchPointsConfig{})
bp.SetDatabase("BumbleBeeTuna")
bp.SetPrecision("ms")
// Create a point and add to batch
tags := map[string]string{"cpu": "cpu-total"}
fields := map[string]interface{}{
"idle": 10.1,
"system": 53.3,
"user": 46.6,
}
pt, err := client.NewPoint("cpu_usage", tags, fields, time.Now())
if err != nil {
fmt.Println("Error: ", err.Error())
}
bp.AddPoint(pt)
}
// Create a new point with a timestamp
func ExamplePoint() {
tags := map[string]string{"cpu": "cpu-total"}
fields := map[string]interface{}{
"idle": 10.1,
"system": 53.3,
"user": 46.6,
}
pt, err := client.NewPoint("cpu_usage", tags, fields, time.Now())
if err == nil {
fmt.Println("We created a point: ", pt.String())
}
}
// Create a new point without a timestamp
func ExamplePoint_withoutTime() {
tags := map[string]string{"cpu": "cpu-total"}
fields := map[string]interface{}{
"idle": 10.1,
"system": 53.3,
"user": 46.6,
}
pt, err := client.NewPoint("cpu_usage", tags, fields)
if err == nil {
fmt.Println("We created a point w/o time: ", pt.String())
}
}
// Write 1000 points
func ExampleClient_write1000() {
sampleSize := 1000
// Make client
c, err := client.NewHTTPClient(client.HTTPConfig{
Addr: "http://localhost:8086",
})
if err != nil {
fmt.Println("Error creating InfluxDB Client: ", err.Error())
}
defer c.Close()
rand.Seed(42)
bp, _ := client.NewBatchPoints(client.BatchPointsConfig{
Database: "systemstats",
Precision: "us",
})
for i := 0; i < sampleSize; i++ {
regions := []string{"us-west1", "us-west2", "us-west3", "us-east1"}
tags := map[string]string{
"cpu": "cpu-total",
"host": fmt.Sprintf("host%d", rand.Intn(1000)),
"region": regions[rand.Intn(len(regions))],
}
idle := rand.Float64() * 100.0
fields := map[string]interface{}{
"idle": idle,
"busy": 100.0 - idle,
}
pt, err := client.NewPoint(
"cpu_usage",
tags,
fields,
time.Now(),
)
if err != nil {
println("Error:", err.Error())
continue
}
bp.AddPoint(pt)
}
err = c.Write(bp)
if err != nil {
fmt.Println("Error: ", err.Error())
}
}
// Make a Query
func ExampleClient_query() {
// Make client
c, err := client.NewHTTPClient(client.HTTPConfig{
Addr: "http://localhost:8086",
})
if err != nil {
fmt.Println("Error creating InfluxDB Client: ", err.Error())
}
defer c.Close()
q := client.NewQuery("SELECT count(value) FROM shapes", "square_holes", "ns")
if response, err := c.Query(q); err == nil && response.Error() == nil {
fmt.Println(response.Results)
}
}
// Create a Database with a query
func ExampleClient_createDatabase() {
// Make client
c, err := client.NewHTTPClient(client.HTTPConfig{
Addr: "http://localhost:8086",
})
if err != nil {
fmt.Println("Error creating InfluxDB Client: ", err.Error())
}
defer c.Close()
q := client.NewQuery("CREATE DATABASE telegraf", "", "")
if response, err := c.Query(q); err == nil && response.Error() == nil {
fmt.Println(response.Results)
}
}
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