107 lines
2.8 KiB
Go
107 lines
2.8 KiB
Go
|
// Copyright 2019 The Prometheus Authors
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
// Package v1_test provides examples making requests to Prometheus using the
|
||
|
|
// Golang client.
|
||
|
|
package v1_test
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
"fmt"
|
||
|
|
"os"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"github.com/prometheus/client_golang/api"
|
||
|
|
v1 "github.com/prometheus/client_golang/api/prometheus/v1"
|
||
|
|
)
|
||
|
|
|
||
|
|
func ExampleAPI_Query() {
|
||
|
|
client, err := api.NewClient(api.Config{
|
||
|
|
Address: "http://demo.robustperception.io:9090",
|
||
|
|
})
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Error creating client: %v\n", err)
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
|
||
|
|
api := v1.NewAPI(client)
|
||
|
|
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
||
|
|
defer cancel()
|
||
|
|
result, warnings, err := api.Query(ctx, "up", time.Now())
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Error querying Prometheus: %v\n", err)
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
if len(warnings) > 0 {
|
||
|
|
fmt.Printf("Warnings: %v\n", warnings)
|
||
|
|
}
|
||
|
|
fmt.Printf("Result:\n%v\n", result)
|
||
|
|
}
|
||
|
|
|
||
|
|
func ExampleAPI_QueryRange() {
|
||
|
|
client, err := api.NewClient(api.Config{
|
||
|
|
Address: "http://demo.robustperception.io:9090",
|
||
|
|
})
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Error creating client: %v\n", err)
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
|
||
|
|
api := v1.NewAPI(client)
|
||
|
|
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
||
|
|
defer cancel()
|
||
|
|
r := v1.Range{
|
||
|
|
Start: time.Now().Add(-time.Hour),
|
||
|
|
End: time.Now(),
|
||
|
|
Step: time.Minute,
|
||
|
|
}
|
||
|
|
result, warnings, err := api.QueryRange(ctx, "rate(prometheus_tsdb_head_samples_appended_total[5m])", r)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Error querying Prometheus: %v\n", err)
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
if len(warnings) > 0 {
|
||
|
|
fmt.Printf("Warnings: %v\n", warnings)
|
||
|
|
}
|
||
|
|
fmt.Printf("Result:\n%v\n", result)
|
||
|
|
}
|
||
|
|
|
||
|
|
func ExampleAPI_Series() {
|
||
|
|
client, err := api.NewClient(api.Config{
|
||
|
|
Address: "http://demo.robustperception.io:9090",
|
||
|
|
})
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Error creating client: %v\n", err)
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
|
||
|
|
api := v1.NewAPI(client)
|
||
|
|
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
||
|
|
defer cancel()
|
||
|
|
lbls, warnings, err := api.Series(ctx, []string{
|
||
|
|
"{__name__=~\"scrape_.+\",job=\"node\"}",
|
||
|
|
"{__name__=~\"scrape_.+\",job=\"prometheus\"}",
|
||
|
|
}, time.Now().Add(-time.Hour), time.Now())
|
||
|
|
if err != nil {
|
||
|
|
fmt.Printf("Error querying Prometheus: %v\n", err)
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
if len(warnings) > 0 {
|
||
|
|
fmt.Printf("Warnings: %v\n", warnings)
|
||
|
|
}
|
||
|
|
fmt.Println("Result:")
|
||
|
|
for _, lbl := range lbls {
|
||
|
|
fmt.Println(lbl)
|
||
|
|
}
|
||
|
|
}
|