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Class Consumer

Consumes and decodes Orchestrate messages

Hierarchy

  • KafkaClient
    • Consumer

Index

Constructors

constructor

  • new Consumer(brokers: string[], topics?: string[], kafkaConfig?: Omit<KafkaConfig, "brokers">, consumerConfig?: KafkaJS.ConsumerConfig): Consumer
  • Creates a new instance of the Consumer

    Parameters

    • brokers: string[]

      List of brokers to connect to

    • Default value topics: string[] = [DEFAULT_TOPIC_TX_DECODED, DEFAULT_TOPIC_TX_RECOVER]

      List of topics to consume

    • Optional kafkaConfig: Omit<KafkaConfig, "brokers">

      Kafka client configuration

    • Optional consumerConfig: KafkaJS.ConsumerConfig

      Consumer configuration

    Returns Consumer

Methods

addListener

  • addListener(event: string | symbol, listener: (...args: any[]) => void): this
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

commit

connect

  • connect(): Promise<void>
  • Connects to Kafka and subscribes to each topic

    Returns Promise<void>

    a Promise that resolves if the connection is successful and rejects otherwise

consume

  • consume(): Promise<void>

disconnect

  • disconnect(): Promise<void>
  • Disconnects from the broker and unsubscribes from the topics

    Returns Promise<void>

    a Promise that resolves if the connection is disconnected successfully

emit

  • emit(event: string | symbol, ...args: any[]): boolean
  • Parameters

    • event: string | symbol
    • Rest ...args: any[]

    Returns boolean

eventNames

  • eventNames(): Array<string | symbol>
  • Returns Array<string | symbol>

getMaxListeners

  • getMaxListeners(): number
  • Returns number

getTopics

  • getTopics(): string[]

listenerCount

  • listenerCount(type: string | symbol): number
  • Parameters

    • type: string | symbol

    Returns number

listeners

  • listeners(event: string | symbol): Function[]
  • Parameters

    • event: string | symbol

    Returns Function[]

off

  • off(event: string | symbol, listener: (...args: any[]) => void): this
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

on

  • on(event: string | symbol, listener: (...args: any[]) => void): this
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

once

  • once(event: string | symbol, listener: (...args: any[]) => void): this
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

prependListener

  • prependListener(event: string | symbol, listener: (...args: any[]) => void): this
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

prependOnceListener

  • prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): this
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

rawListeners

  • rawListeners(event: string | symbol): Function[]
  • Parameters

    • event: string | symbol

    Returns Function[]

ready

  • ready(): boolean
  • Returns true if the Producer is ready to produce messages

    Returns boolean

removeAllListeners

  • removeAllListeners(event?: string | symbol): this
  • Parameters

    • Optional event: string | symbol

    Returns this

removeListener

  • removeListener(event: string | symbol, listener: (...args: any[]) => void): this
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns this

setMaxListeners

  • setMaxListeners(n: number): this
  • Parameters

    • n: number

    Returns this

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