mirror of https://github.com/prometheus/prometheus
78 lines
2.1 KiB
Go
78 lines
2.1 KiB
Go
// Copyright 2016 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"fmt"
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"io/ioutil"
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"net/http"
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"github.com/golang/protobuf/proto"
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"github.com/golang/snappy"
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"github.com/prometheus/common/model"
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"golang.org/x/net/context"
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"github.com/prometheus/prometheus/storage/remote"
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)
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type server struct{}
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func (server *server) Write(ctx context.Context, req *remote.WriteRequest) (*remote.WriteResponse, error) {
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for _, ts := range req.Timeseries {
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m := make(model.Metric, len(ts.Labels))
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for _, l := range ts.Labels {
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m[model.LabelName(l.Name)] = model.LabelValue(l.Value)
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}
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fmt.Println(m)
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for _, s := range ts.Samples {
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fmt.Printf(" %f %d\n", s.Value, s.TimestampMs)
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}
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}
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return &remote.WriteResponse{}, nil
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}
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func main() {
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http.Handle("/push", AppenderHandler(&server{}))
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http.ListenAndServe(":1234", nil)
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}
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type WriteServer interface {
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Write(context.Context, *remote.WriteRequest) (*remote.WriteResponse, error)
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}
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// AppenderHandler returns a http.Handler that accepts proto encoded samples.
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func AppenderHandler(s WriteServer) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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reqBuf, err := ioutil.ReadAll(snappy.NewReader(r.Body))
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if err != nil {
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return
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}
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var req remote.WriteRequest
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if err := proto.Unmarshal(reqBuf, &req); err != nil {
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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if _, err := s.Write(context.Background(), &req); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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w.WriteHeader(http.StatusOK)
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})
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}
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