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Deprecate WavefrontProxyClient [WIP] (#50)
* Deprecate WavefrontProxyClient * big refactoring * example app * multi client * gzip events bug ? * MultiClient & events by proxy * cleaning * big refactoring 2 * big refactoring 2 (cont.) * review comments * bug * events http gzip when using direct
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,94 @@ | ||
package main | ||
|
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import ( | ||
"fmt" | ||
"log" | ||
"os" | ||
"strings" | ||
"time" | ||
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"github.com/wavefronthq/wavefront-sdk-go/application" | ||
"github.com/wavefronthq/wavefront-sdk-go/event" | ||
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"github.com/wavefronthq/wavefront-sdk-go/senders" | ||
) | ||
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func main() { | ||
var wfSenders []senders.Sender | ||
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urls := strings.Split(os.Getenv("WF_URL"), "|") | ||
for _, url := range urls { | ||
sender, err := senders.NewSender(url) | ||
if err != nil { | ||
panic(err) | ||
} | ||
wfSenders = append(wfSenders, sender) | ||
} | ||
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// OLD PROXY way | ||
proxyCfg := &senders.ProxyConfiguration{ | ||
Host: "localhost", | ||
MetricsPort: 2878, | ||
DistributionPort: 2878, | ||
TracingPort: 2878, | ||
EventsPort: 2878, | ||
FlushIntervalSeconds: 10, | ||
} | ||
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sender, err := senders.NewProxySender(proxyCfg) | ||
if err != nil { | ||
panic(err) | ||
} | ||
wfSenders = append(wfSenders, sender) | ||
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// OLD DIRECT way | ||
directCfg := &senders.DirectConfiguration{ | ||
Server: "https://-----.wavefront.com", | ||
Token: "--------------", | ||
BatchSize: 10000, | ||
MaxBufferSize: 500000, | ||
FlushIntervalSeconds: 1, | ||
} | ||
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sender, err = senders.NewDirectSender(directCfg) | ||
if err != nil { | ||
panic(err) | ||
} | ||
wfSenders = append(wfSenders, sender) | ||
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wf := senders.NewMultiSender(wfSenders...) | ||
log.Print("senders ready") | ||
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source := "go_sdk_example" | ||
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app := application.New("sample app", "main.go") | ||
application.StartHeartbeatService(wf, app, source) | ||
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tags := make(map[string]string) | ||
tags["namespace"] = "default" | ||
tags["Kind"] = "Deployment" | ||
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options := []event.Option{event.Details("Details"), event.Type("type"), event.Severity("severity")} | ||
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for i := 0; i < 10; i++ { | ||
err := wf.SendMetric("sample.metric", float64(i), time.Now().UnixNano(), source, map[string]string{"env": "test"}) | ||
if err != nil { | ||
println("error:", err.Error()) | ||
} | ||
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txt := fmt.Sprintf("test event %d", i) | ||
sendEvent(wf, txt, time.Now().Unix(), 0, source, tags, options...) | ||
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time.Sleep(10 * time.Second) | ||
} | ||
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wf.Flush() | ||
wf.Close() | ||
} | ||
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func sendEvent(sender senders.Sender, name string, startMillis, endMillis int64, source string, tags map[string]string, setters ...event.Option) { | ||
err := sender.SendEvent(name, startMillis, endMillis, source, tags, setters...) | ||
if err != nil { | ||
println("error:", err) | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,4 +1,4 @@ | ||
package senders | ||
package internal | ||
|
||
import ( | ||
"bytes" | ||
|
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,93 @@ | ||
package internal | ||
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import ( | ||
"bytes" | ||
"compress/gzip" | ||
"io" | ||
"io/ioutil" | ||
"net/http" | ||
"strings" | ||
"time" | ||
) | ||
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// The implementation of a Reporter that reports points directly to a Wavefront server. | ||
type reporter struct { | ||
serverURL string | ||
token string | ||
client *http.Client | ||
} | ||
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// Newreporter create a metrics Reporter | ||
func NewReporter(server string, token string) Reporter { | ||
return &reporter{ | ||
serverURL: server, | ||
token: token, | ||
client: &http.Client{Timeout: time.Second * 10}, | ||
} | ||
} | ||
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func (reporter reporter) Report(format string, pointLines string) (*http.Response, error) { | ||
if format == "" || pointLines == "" { | ||
return nil, formatError | ||
} | ||
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// compress | ||
var buf bytes.Buffer | ||
zw := gzip.NewWriter(&buf) | ||
_, err := zw.Write([]byte(pointLines)) | ||
if err != nil { | ||
zw.Close() | ||
return nil, err | ||
} | ||
if err = zw.Close(); err != nil { | ||
return nil, err | ||
} | ||
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apiURL := reporter.serverURL + reportEndpoint | ||
req, err := http.NewRequest("POST", apiURL, &buf) | ||
if err != nil { | ||
return &http.Response{}, err | ||
} | ||
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req.Header.Set(contentType, octetStream) | ||
req.Header.Set(contentEncoding, gzipFormat) | ||
if len(reporter.token) > 0 { | ||
req.Header.Set(authzHeader, bearer+reporter.token) | ||
} | ||
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q := req.URL.Query() | ||
q.Add(formatKey, format) | ||
req.URL.RawQuery = q.Encode() | ||
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return reporter.execute(req) | ||
} | ||
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func (reporter reporter) ReportEvent(event string) (*http.Response, error) { | ||
if event == "" { | ||
return nil, formatError | ||
} | ||
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apiURL := reporter.serverURL + eventEndpoint | ||
req, err := http.NewRequest("POST", apiURL, strings.NewReader(event)) | ||
if err != nil { | ||
return &http.Response{}, err | ||
} | ||
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req.Header.Set(contentType, applicationJSON) | ||
if len(reporter.token) > 0 { | ||
req.Header.Set(contentEncoding, gzipFormat) | ||
req.Header.Set(authzHeader, bearer+reporter.token) | ||
} | ||
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return reporter.execute(req) | ||
} | ||
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func (reporter reporter) execute(req *http.Request) (*http.Response, error) { | ||
resp, err := reporter.client.Do(req) | ||
if err != nil { | ||
return resp, err | ||
} | ||
io.Copy(ioutil.Discard, resp.Body) | ||
defer resp.Body.Close() | ||
return resp, nil | ||
} |
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