forked from cloudevents/sdk-go
/
main.go
140 lines (119 loc) · 3.54 KB
/
main.go
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package main
import (
"context"
"crypto/tls"
"crypto/x509"
"fmt"
"io/ioutil"
"log"
"net/http"
"net/url"
"os"
"time"
cloudevents "github.com/ian-mi/sdk-go/v2"
"github.com/google/uuid"
"github.com/kelseyhightower/envconfig"
)
const (
count = 1000
)
type envConfig struct {
// Target URL where to send cloudevents
Target string `envconfig:"TARGET" default:"https://localhost:8080" required:"true"`
// Path for the client certificate used to publish to an HTTPS endpoint
ClientCert string `envconfig:"CLIENT_CERT" default:"client.crt" required:"true"`
// Path for the client key used to publish to an HTTPS endpoint
ClientKey string `envconfig:"CLIENT_KEY" default:"client.key" required:"true"`
}
func main() {
var env envConfig
if err := envconfig.Process("", &env); err != nil {
log.Printf("[ERROR] Failed to process env var: %s", err)
os.Exit(1)
}
os.Exit(_main(os.Args[1:], env))
}
// Example is a basic data struct.
type Example struct {
Sequence int `json:"id"`
Message string `json:"message"`
}
func _main(args []string, env envConfig) int {
source, err := url.Parse("https://github.com/ian-mi/sdk-go/v2/cmd/samples/sender")
if err != nil {
log.Printf("failed to parse source url, %v", err)
return 1
}
cert, err := tls.LoadX509KeyPair(env.ClientCert, env.ClientKey)
if err != nil {
log.Fatalln("unable to load certs", err)
}
clientCACert, err := ioutil.ReadFile(env.ClientCert)
if err != nil {
log.Fatal("unable to open cert", err)
}
clientCertPool := x509.NewCertPool()
clientCertPool.AppendCertsFromPEM(clientCACert)
tlsConfig := &tls.Config{
Certificates: []tls.Certificate{cert},
RootCAs: clientCertPool,
InsecureSkipVerify: true,
}
tlsConfig.BuildNameToCertificate()
seq := 0
for _, dataContentType := range []string{"application/json", "application/xml"} {
for _, encoding := range []cloudevents.Encoding{cloudevents.EncodingBinary, cloudevents.EncodingStructured} {
ctx := context.Background()
p, err := cloudevents.NewHTTP(cloudevents.WithTarget(env.Target),
cloudevents.WithHTTPTransport(&http.Transport{TLSClientConfig: tlsConfig}))
if err != nil {
log.Printf("failed to create protocol, %v", err)
return 1
}
c, err := cloudevents.NewClient(p,
cloudevents.WithTimeNow(),
)
if err != nil {
log.Printf("failed to create client, %v", err)
return 1
}
message := fmt.Sprintf("Hello, %d!", encoding)
for i := 0; i < count; i++ {
event := cloudevents.Event{
Context: cloudevents.EventContextV03{
ID: uuid.New().String(),
Type: "com.cloudevents.sample.sent",
Source: cloudevents.URIRef{URL: *source},
}.AsV03(),
}
_ = event.SetData(dataContentType, &Example{
Sequence: i,
Message: message,
})
switch encoding {
case cloudevents.EncodingBinary:
ctx = cloudevents.WithEncodingBinary(ctx)
case cloudevents.EncodingStructured:
ctx = cloudevents.WithEncodingStructured(ctx)
}
if resp, err := c.Request(ctx, event); err != nil {
log.Printf("failed to send: %v", err)
} else if resp != nil {
fmt.Printf("Response:\n%s\n", resp)
fmt.Printf("Got Event Response Context: %+v\n", resp.Context)
data := &Example{}
if err := resp.DataAs(data); err != nil {
fmt.Printf("Got Data Error: %s\n", err.Error())
}
fmt.Printf("Got Response Data: %+v\n", data)
fmt.Printf("----------------------------\n")
} else {
log.Printf("event sent at %s", time.Now())
}
seq++
time.Sleep(500 * time.Millisecond)
}
}
}
return 0
}