commit 478d88906aaf2ba5e1fd84e3b8ff6bcb07f11d77 Author: coward Date: Thu Dec 21 14:27:05 2023 +0800 :tada:first commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..111715c --- /dev/null +++ b/.gitignore @@ -0,0 +1,26 @@ +### Go template +# If you prefer the allow list template instead of the deny list, see community template: +# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore +# +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib + +# Test binary, built with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out + +# Dependency directories (remove the comment below to include it) +# vendor/ +/.idea +/cache +/log + +# Go workspace file +go.work + diff --git a/README.md b/README.md new file mode 100644 index 0000000..f60adcf --- /dev/null +++ b/README.md @@ -0,0 +1,78 @@ +# knadh-nacos-provider + +## introduction +knadh的Nacos服务提供者。 + +## install +```go +go get github.com/cowardmrx/knadh-nacos-provider +``` +## usage +```go +package main + +import ( + "fmt" + "github.com/knadh/koanf/parsers/yaml" + "github.com/knadh/koanf/v2" +) + +var ( + k = koanf.New(".") + conf = YourConfig{} +) + +type YourConfig struct { + // Fields + Username string `yaml:"username"` +} + +func main() { + np := Provider(Config{ + Host: "ip or domain", + Port: 8848, + NamespaceId: "", + Group: "", + ConfigName: "", + }) + + if err := k.Load(np, yaml.Parser()); err != nil { + // error + fmt.Println(fmt.Errorf("error: %w", err)) + return + } + + if err := k.Unmarshal("", &conf); err != nil { + // error + fmt.Println(fmt.Errorf("error: %w", err)) + return + } + + // watch + if err := np.Watch(func(data interface{}, err error) { + + k = koanf.New(".") + if err = k.Load(np, yaml.Parser()); err != nil { + // error + fmt.Println(fmt.Errorf("error: %w", err)) + return + } + err = k.Unmarshal("", &conf) + if err != nil { + // error + fmt.Println(fmt.Errorf("error: %w", err)) + return + } + + fmt.Println("2 ", conf.Username) + + // do something + + }); err != nil { + // error + fmt.Println(fmt.Errorf("error: %w", err)) + return + } + +} +``` \ No newline at end of file diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..eebdc6f --- /dev/null +++ b/go.mod @@ -0,0 +1,53 @@ +module github.com/cowardmrx/knadh-nacos-provider + +go 1.21 + +require ( + github.com/nacos-group/nacos-sdk-go v1.1.4 + gopkg.in/yaml.v2 v2.2.2 +) + +require ( + github.com/aliyun/alibaba-cloud-sdk-go v1.61.18 // indirect + github.com/buger/jsonparser v1.1.1 // indirect + github.com/bytedance/sonic v1.9.1 // indirect + github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect + github.com/gabriel-vasile/mimetype v1.4.2 // indirect + github.com/gin-contrib/sse v0.1.0 // indirect + github.com/gin-gonic/gin v1.9.1 // indirect + github.com/go-errors/errors v1.0.1 // indirect + github.com/go-playground/locales v0.14.1 // indirect + github.com/go-playground/universal-translator v0.18.1 // indirect + github.com/go-playground/validator/v10 v10.14.0 // indirect + github.com/goccy/go-json v0.10.2 // indirect + github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af // indirect + github.com/json-iterator/go v1.1.12 // indirect + github.com/klauspost/cpuid/v2 v2.2.4 // indirect + github.com/knadh/koanf/maps v0.1.1 // indirect + github.com/knadh/koanf/parsers/yaml v0.1.0 // indirect + github.com/knadh/koanf/v2 v2.0.1 // indirect + github.com/leodido/go-urn v1.2.4 // indirect + github.com/mattn/go-isatty v0.0.19 // indirect + github.com/mitchellh/copystructure v1.2.0 // indirect + github.com/mitchellh/mapstructure v1.5.0 // indirect + github.com/mitchellh/reflectwalk v1.0.2 // indirect + github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect + github.com/modern-go/reflect2 v1.0.2 // indirect + github.com/pelletier/go-toml/v2 v2.0.8 // indirect + github.com/pkg/errors v0.9.1 // indirect + github.com/twitchyliquid64/golang-asm v0.15.1 // indirect + github.com/ugorji/go/codec v1.2.11 // indirect + go.uber.org/atomic v1.6.0 // indirect + go.uber.org/multierr v1.5.0 // indirect + go.uber.org/zap v1.15.0 // indirect + golang.org/x/arch v0.3.0 // indirect + golang.org/x/crypto v0.9.0 // indirect + golang.org/x/net v0.10.0 // indirect + golang.org/x/sync v0.0.0-20190423024810-112230192c58 // indirect + golang.org/x/sys v0.8.0 // indirect + golang.org/x/text v0.9.0 // indirect + google.golang.org/protobuf v1.30.0 // indirect + gopkg.in/ini.v1 v1.42.0 // indirect + gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect + gopkg.in/yaml.v3 v3.0.1 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..239acee --- /dev/null +++ b/go.sum @@ -0,0 +1,176 @@ +github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= 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uint64 + NamespaceId string + Group string + ConfigName string +} + +type Nacos struct { + client config_client.IConfigClient + config Config +} + +// validateConfig +// @description: validate config +// @param config +// @return error +func validateConfig(config *Config) error { + if config.Host == "" { + return errors.New("host is empty") + } + if config.Port <= 0 { + return errors.New("port is empty") + } + if config.NamespaceId == "" { + config.NamespaceId = "public" + } + if config.Group == "" { + config.Group = "DEFAULT_GROUP" + } + if config.ConfigName == "" { + return errors.New("config name is empty") + } + return nil +} + +// Provider +// @description: create nacos provider +// @param config +// @return *Nacos +func Provider(config Config) *Nacos { + + // validate config + if err := validateConfig(&config); err != nil { + return nil + } + + // create nacos config client + clientConf := constant.ClientConfig{ + NamespaceId: config.NamespaceId, + TimeoutMs: 5000, + NotLoadCacheAtStart: true, + LogLevel: "error", + } + serverConfigs := []constant.ServerConfig{ + { + IpAddr: config.Host, + ContextPath: "/nacos", + Port: config.Port, + }, + } + + nclient, err := clients.NewConfigClient(vo.NacosClientParam{ + ClientConfig: &clientConf, + ServerConfigs: serverConfigs, + }) + + // create client failed + if err != nil { + return nil + } + + return &Nacos{nclient, config} +} + +// Read +// @description: read config from remote +// @receiver n +// @return map[string]interface{} +// @return error +func (n Nacos) Read() (result map[string]interface{}, err error) { + if n.client == nil { + return nil, errors.New("nacos client is nil") + } + + data, err := n.client.GetConfig(vo.ConfigParam{ + DataId: n.config.ConfigName, + Group: n.config.Group, + }) + + if err != nil { + return nil, err + } + + if err = yaml.Unmarshal([]byte(data), &result); err != nil { + return nil, err + } + + return result, nil +} + +// ReadBytes +// @description: read config from remote +// @receiver n +// @return result +// @return err +func (n Nacos) ReadBytes() (result []byte, err error) { + if n.client == nil { + return nil, errors.New("nacos client is nil") + } + + data, err := n.client.GetConfig(vo.ConfigParam{ + DataId: n.config.ConfigName, + Group: n.config.Group, + }) + + if err != nil { + return nil, err + } + + return []byte(data), nil +} + +// Watch +// @description: watch config change +// @receiver n +// @param cb +// @return error +func (n Nacos) Watch(cb func(event interface{}, err error)) error { + if n.client == nil { + return errors.New("nacos client is nil") + } + + err := n.client.ListenConfig(vo.ConfigParam{ + DataId: n.config.ConfigName, + Group: n.config.Group, + OnChange: func(namespace, group, dataId, data string) { + cb(data, nil) + }, + }) + + return err +} diff --git a/nacos_test.go b/nacos_test.go new file mode 100644 index 0000000..17f4c70 --- /dev/null +++ b/nacos_test.go @@ -0,0 +1,209 @@ +package main + +import ( + "fmt" + "github.com/knadh/koanf/parsers/yaml" + "github.com/knadh/koanf/v2" + "github.com/nacos-group/nacos-sdk-go/clients/config_client" + "testing" +) + +func ExampleProvider() { + _ = Provider(Config{ + Host: "", + Port: 8848, + NamespaceId: "", + Group: "", + ConfigName: "", + }) + + // output nacos provider +} + +func ExampleNacos_Read() { + np := Provider(Config{ + Host: "ip or domain", + Port: 8848, + NamespaceId: "", + Group: "", + ConfigName: "", + }) + + result, err := np.Read() + if err != nil { + panic(err) + } + + fmt.Println(result) + // output map[email:map[host:123 password:stmp123 port:123 username:hjahaha] password:hass123 username:user1331] +} + +func ExampleNacos_ReadBytes() { + + np := Provider(Config{ + Host: "ip or domain", + Port: 8848, + NamespaceId: "", + Group: "", + ConfigName: "", + }) + + result, err := np.ReadBytes() + if err != nil { + panic(err) + } + + fmt.Println(result) + + // output + //username: "user1331" + //password: "hass123" + // + //email: + // host: "123" + // port: 123 + // username: "hjahaha" + // password: "stmp123" +} + +func ExampleNacos_Watch() { + k := koanf.New(".") + + np := Provider(Config{ + Host: "ip or domain", + Port: 8848, + NamespaceId: "", + Group: "", + ConfigName: "", + }) + + _ = k.Load(np, yaml.Parser()) + + err := np.Watch(func(event interface{}, err error) { + // reload config + k = koanf.New(".") + k.Load(np, yaml.Parser()) + + // unmarshal config + // k.Unmarshal("email", &email) + + // TODO do something + }) + if err != nil { + panic(err) + } + +} + +func TestNacos_Read(t *testing.T) { + type fields struct { + client config_client.IConfigClient + config Config + } + tests := []struct { + name string + fields fields + wantResult map[string]interface{} + wantErr bool + }{ + { + fields: fields{ + config: Config{ + Host: "ip or domain", + Port: 8848, + NamespaceId: "namespace id", + Group: "", // default value is DEFAULT_GROUP + ConfigName: "config name", + }, + }, + }, + } + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + + n := Provider(tt.fields.config) + + gotResult, err := n.Read() + if (err != nil) != tt.wantErr { + t.Errorf("Read() error = %v, wantErr %v", err, tt.wantErr) + return + } + t.Logf("gotResult: %v", gotResult) + }) + } +} + +func TestNacos_ReadBytes(t *testing.T) { + type fields struct { + client config_client.IConfigClient + config Config + } + tests := []struct { + name string + fields fields + wantResult []byte + wantErr bool + }{ + { + fields: fields{ + config: Config{ + Host: "ip or domain", + Port: 8848, + NamespaceId: "namespace id", + Group: "", // default value is DEFAULT_GROUP + ConfigName: "config name", + }, + }, + }, + } + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + + n := Provider(tt.fields.config) + + gotResult, err := n.ReadBytes() + if (err != nil) != tt.wantErr { + t.Errorf("ReadBytes() error = %v, wantErr %v", err, tt.wantErr) + return + } + t.Logf("gotResult: %v", string(gotResult)) + }) + } +} + +func TestNacos_Watch(t *testing.T) { + type fields struct { + client config_client.IConfigClient + config Config + } + type args struct { + cb func(event interface{}, err error) + } + tests := []struct { + name string + fields fields + args args + wantErr bool + }{ + { + fields: fields{ + config: Config{ + Host: "ip or domain", + Port: 8848, + NamespaceId: "namespace id", + Group: "", // default value is DEFAULT_GROUP + ConfigName: "config name", + }, + }, + }, + } + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + n := Provider(tt.fields.config) + + if err := n.Watch(tt.args.cb); (err != nil) != tt.wantErr { + t.Errorf("Watch() error = %v, wantErr %v", err, tt.wantErr) + } + }) + } +}