Nacos helper for Go language
$ go get github.com/zhangsq-ax/nacos-helper-go| Name | Required | Description | Example |
|---|---|---|---|
NACOS_HOST |
true | The IP address of host name of the Nacos server | "127.0.0.1" |
NACOS_PORT |
true | The port that the Nacos server listened | "8848" |
NACOS_SCHEME |
false | The URL scheme of the Nacos server | "https" |
NACOS_CONTEXT_PATH |
false | The URL context path of the Nacos server | "/nacos" |
NACOS_NAMESPACE_ID |
false | The namespace ID of the client in the Nacos server | - |
NACOS_APP_NAME |
false | The name of the application to which the client belongs | - |
NACOS_USERNAME |
false | The username that connect to the Nacos server | - |
NACOS_PASSWORD |
false | The password that connect to the Nacos server | - |
package main
import (
nacos_helper "github.com/zhangsq-ax/nacos-helper-go"
"log"
)
func main() {
...
// use environment variables
err := nacos_helper.RegisterServiceInstance(nil, &nacos_helper.options.RegisterServiceOptions{
Ip:"127.0.0.1",
Port: 8080,
ServiceName: "foo",
})
if err != nil {
log.Fatalln(err)
}
...
}package main
import (
nacos_helper "github.com/zhangsq-ax/nacos-helper-go"
"log"
"fmt"
)
func main() {
// use environment variables
instance, err := nacos_helper.SelectServiceInstance(nil, &nacos_helper.options.SelectServiceInstanceOptions{
ServiceName: "foo",
})
if err != nil {
log.Fatalln(err)
}
fmt.Println(instance.Ip)
fmt.Println(instance.Port)
...
}When the registered services have changes, an available service instance is automatically selected
package main
import (
nacos_helper "github.com/zhangsq-ax/nacos-helper-go"
"log"
"fmt"
)
func main() {
err := nacos_helper.SubscribeServiceInstance(nil, &nacos_helper.options.SubscribeServiceInstanceOptions{
ServiceName: "foo",
SubscribeCallback: func(instance *model.Instance, err error) {
if err != nil {
// Handling error
} else {
fmt.Println(instance.Ip, instance.Port)
// Handle instance changes
}
},
})
if err != nil {
log.Error(err)
}
}
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