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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| package bundle | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strings" | ||
|
|
||
| "github.com/iancoleman/strcase" | ||
|
|
||
| "github.com/go-godin/rabbitmq" | ||
| "github.com/lukasjarosch/godin/internal/godin" | ||
| config "github.com/spf13/viper" | ||
| "github.com/streadway/amqp" | ||
|
|
||
| "github.com/lukasjarosch/godin/internal/prompt" | ||
| ) | ||
|
|
||
| const PublisherKey = "transport.amqp.publisher" | ||
|
|
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| type publisher struct { | ||
| Publishing rabbitmq.Publishing | ||
| } | ||
|
|
||
| func InitializePublisher() (*publisher, error) { | ||
| pub := rabbitmq.Publishing{} | ||
| protoMessage, err := promptPublisherValues(&pub) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| pub.DeliveryMode = amqp.Persistent | ||
| pub.ProtobufMessage = protoMessage | ||
|
|
||
| // unique publisher key | ||
| publisherKey := strings.Replace(pub.Topic, ".", "_", -1) | ||
| publisherKey = strings.ToLower(publisherKey) | ||
|
|
||
| // configure | ||
| confPub := config.GetStringMap(PublisherKey) | ||
| if _, exists := confPub[publisherKey]; exists == true { | ||
| return nil, fmt.Errorf("publisher on '%s' is already registered", pub.Topic) | ||
| } | ||
| confPub[publisherKey] = pub | ||
| config.Set(PublisherKey, confPub) | ||
| godin.SaveConfiguration() | ||
|
|
||
| return &publisher{ | ||
| Publishing: pub, | ||
| }, nil | ||
| } | ||
|
|
||
| func PublisherName(topic string) string { | ||
| name := strings.Replace(topic, ".", "_", -1) | ||
| name = strings.ToLower(name) | ||
| name = strcase.ToCamel(name) | ||
|
|
||
| return name | ||
| } | ||
|
|
||
| func promptPublisherValues(pub *rabbitmq.Publishing) (protoMessage string, err error) { | ||
| // Topic | ||
| p := prompt.NewPrompt( | ||
| "AMQP subscription Topic", | ||
| "user.created", | ||
| prompt.Validate(), | ||
| ) | ||
| topic, err := p.Run() | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| pub.Topic = topic | ||
|
|
||
| // Exchange | ||
| p = prompt.NewPrompt( | ||
| "AMQP Exchange name", | ||
| "user-exchange", | ||
| prompt.Validate(), | ||
| ) | ||
| exchange, err := p.Run() | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| pub.Exchange = exchange | ||
|
|
||
| // Protobuf message name | ||
| p = prompt.NewPrompt( | ||
| "Which protobuf message is going to be sent?", | ||
| "UserCreatedEvent", | ||
| prompt.Validate(), | ||
| ) | ||
| protoMessage, err = p.Run() | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| return protoMessage, nil | ||
| } |
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