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feat(go): create a not private version for go
Creates another version of go implementation of kafka handling, which is not a private repository
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,231 @@ | ||
| // Package {{.packageName}} provides primitives to interact with the asyncAPI. | ||
| // | ||
| // Code generated by github.com/c0olix/asyncApiCodeGen DO NOT EDIT. | ||
| package {{.packageName}} | ||
| {{ $messages := getMessages .}} {{$objects := getObjects $messages}} {{$items := getItemObjects $messages}} | ||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "github.com/c0olix/goChan" | ||
| "github.com/go-playground/validator/v10" | ||
| "github.com/pkg/errors" | ||
| "github.com/segmentio/kafka-go" | ||
| "reflect" | ||
| {{- range $imp := getImports .}} | ||
| "{{$imp}}" | ||
| {{- end}} | ||
| ) | ||
|
|
||
| const ( | ||
| {{- range $channelName, $channel := .channels }} | ||
| {{ lower $channelName | camel}}TopicName = "{{$channelName}}" | ||
| {{- end}} | ||
| ) | ||
|
|
||
| var validate *validator.Validate = validator.New() | ||
|
|
||
| // KafkaTopicConfig Holds configuration needed fo create a kafka topic | ||
| type KafkaTopicConfig struct { | ||
| TopicGroup string | ||
| NumPartitions int | ||
| ReplicationFactor int | ||
| } | ||
|
|
||
| func UnmarshalEvent(proto interface{}, messageArray []byte) (interface{}, error) { | ||
| eventType := reflect.TypeOf(proto) | ||
| value := reflect.New(eventType).Interface() | ||
| err := json.Unmarshal(messageArray, value) | ||
| return value, err | ||
| } | ||
|
|
||
| {{ range $message := $messages }} | ||
| // {{$message.name}} {{$message.description}} | ||
| type {{$message.name}} struct { | ||
| {{- range $propertyName, $property := $message.payload.properties}} {{$required := checkRequired $propertyName $message.payload.required}} | ||
| {{camel $propertyName}} {{if not $required -}}*{{- end}}{{ convertToGoType $property -}} `json:"{{$propertyName}}{{if not $required -}},omitempty{{- end}}"{{validations $property $required }}` | ||
| {{- end}} | ||
| } | ||
|
|
||
| // Validate validates the {{$message.name}}) struct for its requirements | ||
| func (thiz {{$message.name}}) Validate() error{ | ||
| return validate.Struct(thiz) | ||
| } | ||
|
|
||
| // New{{$message.name}} creates a new struct of the {{$message.name}} type and validates its content | ||
| func New{{$message.name}}({{range $propertyName, $property := $message.payload.properties}}{{$required := checkRequired $propertyName $message.payload.required}}{{$propertyName}} {{if not $required}}*{{end}}{{ convertToGoType $property}},{{end}}) (*{{$message.name}},error) { | ||
| {{lowerCamel $message.name}} := {{$message.name}}{ | ||
| {{- range $propertyName, $property := $message.payload.properties}} | ||
| {{camel $propertyName}}: {{$propertyName}}, | ||
| {{- end}} | ||
| } | ||
| err := {{lowerCamel $message.name}}.Validate() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &{{lowerCamel $message.name}}, nil | ||
| } | ||
| {{ end}} | ||
|
|
||
| {{ range $object := $objects }} | ||
| // {{$object.title}} Nested object for {{$object.parent}} type | ||
| type {{$object.title}} struct { | ||
| {{- range $objPropertyName, $objProperty := $object.properties}} {{$required := checkRequired $objPropertyName $object.required}} | ||
| {{camel $objPropertyName}} {{if not $required -}}*{{- end}}{{ convertToGoType $objProperty -}} `json:"{{$objPropertyName}}{{if not $required -}},omitempty{{- end}}"{{validations $objProperty $required }}` | ||
| {{- end}} | ||
| } | ||
|
|
||
| // Validate validates the {{$object.title}} struct for its requirements | ||
| func (thiz {{$object.title}}) Validate() error{ | ||
| return validate.Struct(thiz) | ||
| } | ||
|
|
||
| // New{{$object.title}} creates a new struct of the {{$object.title}} type and validates its content | ||
| func New{{$object.title}}({{range $propertyName, $property := $object.properties}}{{$required := checkRequired $propertyName $object.required}}{{$propertyName}} {{if not $required}}*{{end}}{{ convertToGoType $property}},{{end}}) (*{{$object.title}},error) { | ||
| {{lowerCamel $object.title}} := {{$object.title}}{ | ||
| {{- range $propertyName, $property := $object.properties}} | ||
| {{camel $propertyName}}: {{$propertyName}}, | ||
| {{- end}} | ||
| } | ||
| err := {{lowerCamel $object.title}}.Validate() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &{{lowerCamel $object.title}}, nil | ||
| } | ||
| {{- end}} | ||
| {{ range $item := $items }} | ||
|
|
||
| // {{$item.items.title}} Nested object for {{$item.parent}} type | ||
| type {{$item.items.title}} struct { | ||
| {{- range $objPropertyName, $objProperty := $item.items.properties}} {{$required := checkRequired $objPropertyName $item.items.required}} | ||
| {{camel $objPropertyName}} {{if not $required -}}*{{- end}}{{ convertToGoType $objProperty -}} `json:"{{$objPropertyName}}{{if not $required -}},omitempty{{- end}}"{{validations $objProperty $required }}` | ||
| {{- end}} | ||
| } | ||
|
|
||
| // Validate validates the {{$item.items.title}} struct for its requirements | ||
| func (thiz {{$item.items.title}}) Validate() error{ | ||
| return validate.Struct(thiz) | ||
| } | ||
|
|
||
| // New{{$item.items.title}} creates a new struct of the {{$item.items.title}} type and validates its content | ||
| func New{{$item.items.title}}({{range $propertyName, $property := $item.items.properties}}{{$required := checkRequired $propertyName $item.items.required}}{{$propertyName}} {{if not $required}}*{{end}}{{ convertToGoType $property}},{{end}}) (*{{$item.items.title}},error) { | ||
| {{lowerCamel $item.items.title}} := {{$item.items.title}}{ | ||
| {{- range $propertyName, $property := $item.items.properties}} | ||
| {{camel $propertyName}}: {{$propertyName}}, | ||
| {{- end}} | ||
| } | ||
| err := {{lowerCamel $item.items.title}}.Validate() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &{{lowerCamel $item.items.title}}, nil | ||
| } | ||
| {{- end}} | ||
|
|
||
|
|
||
| // ConsumerInterface Interface for all events to be consumed by application | ||
| type ConsumerInterface interface { | ||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.publish}} | ||
| {{camel $channel.publish.operationId}}(handler goChan.Handler) | ||
| {{- end}} | ||
| {{- end}} | ||
| } | ||
|
|
||
| // ProducerInterface Interface for all events to be produced by application | ||
| type ProducerInterface interface { | ||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.subscribe}} | ||
| {{camel $channel.subscribe.operationId}}(ctx context.Context, event {{$channel.subscribe.message.name}}) error | ||
| {{- end}} | ||
| {{- end}} | ||
| } | ||
|
|
||
| // DefaultConsumer implements ConsumerInterface and consumes events with go kafka mosaic style flavor | ||
| type DefaultConsumer struct { | ||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.publish}} | ||
| {{ lower $channelName | camel}}Topic goChan.ChannelInterface | ||
| {{- end}} | ||
| {{- end}} | ||
| } | ||
|
|
||
| // DefaultProducer implements ProducerInterface and produces events with go kafka mosaic style flavor | ||
| type DefaultProducer struct { | ||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.subscribe}} | ||
| {{ lower $channelName | camel}}Topic goChan.ChannelInterface | ||
| {{- end}} | ||
| {{- end}} | ||
| } | ||
|
|
||
| // NewDefaultConsumer wires all needed dependencies to create a DefaultConsumer | ||
| func NewDefaultConsumer(manager goChan.ManagerInterface, errorCallback func(ctx context.Context, err error), config KafkaTopicConfig,mw ...goChan.Middleware) (*DefaultConsumer, error) { | ||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.publish}} | ||
| {{ lower $channelName | camel}}Topic, err := manager.CreateChannel({{ lower $channelName | camel}}TopicName, errorCallback, config) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| {{ lower $channelName | camel}}Topic.SetReaderMiddleWares(mw...) | ||
| {{- end}} | ||
| {{- end}} | ||
| return &DefaultConsumer{ | ||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.publish}} | ||
| {{ lower $channelName | camel}}Topic: {{ lower $channelName | camel}}Topic, | ||
| {{- end}} | ||
| {{- end}} | ||
| }, nil | ||
| } | ||
|
|
||
| // NewDefaultProducer wires all needed dependencies to create a DefaultProducer | ||
| func NewDefaultProducer(manager goChan.ManagerInterface, errorCallback func(ctx context.Context, err error), config KafkaTopicConfig, mw ...goChan.Middleware) (*DefaultProducer, error) { | ||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.subscribe}} | ||
| {{ lower $channelName | camel}}Topic, err := manager.CreateChannel({{ lower $channelName | camel}}TopicName, errorCallback, config) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| {{ lower $channelName | camel}}Topic.SetWriterMiddleWares(mw...) | ||
| {{- end}} | ||
| {{- end}} | ||
| return &DefaultProducer{ | ||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.subscribe}} | ||
| {{ lower $channelName | camel}}Topic: {{ lower $channelName | camel}}Topic, | ||
| {{- end}} | ||
| {{- end}} | ||
| }, nil | ||
| } | ||
|
|
||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.publish}} | ||
| //{{camel $channel.publish.operationId}} is the go kafka mosaic style flavored implementation of the ConsumerInterface registered on DefaultConsumer | ||
| // to consume the {{$channel.publish.message.name}} Event. | ||
| func (d DefaultConsumer) {{camel $channel.publish.operationId}} (handler goChan.Handler) { | ||
| d.{{ lower $channelName | camel}}Topic.Consume(handler) | ||
| } | ||
| {{- end}} | ||
| {{ end}} | ||
|
|
||
| {{- range $channelName, $channel := .channels }} | ||
| {{- if $channel.subscribe}} | ||
| //{{camel $channel.subscribe.operationId}} is the go kafka mosaic style flavored implementation of the ConsumerInterface registered on DefaultConsumer | ||
| // to produce the {{$channel.subscribe.message.name}} Event. | ||
| func (d DefaultProducer) {{camel $channel.subscribe.operationId}}(ctx context.Context, event {{$channel.subscribe.message.name}}) error { | ||
| eventData, err := json.Marshal(event) | ||
| if err != nil { | ||
| return errors.Wrap(err, "unable to marshal eventdata") | ||
| } | ||
| msg := kafka.Message{ | ||
| Value: eventData, | ||
| } | ||
| err = d.{{ lower $channelName | camel}}Topic.Produce(ctx, msg) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
| {{- end}} | ||
| {{- end}} |