Service

A service that processes requests coming from other VMs connected to the data cloud.

Index

Constructors

• constructor

Methods

• listen
• stop
• get
• observe
• publish
• send

Constructors

constructor

• new Service(serviceId: string, context: Context): Service

• Create a new instance of the service with the specified id. It uses the context to make the lifecycle of the service related to the context one.

  ---

  Parameters

  • serviceId: string

    the service id

  • context: Context

    the context of that service.

  Returns Service

Methods

listen

• listen(): Observable<ServiceRequest>

• Start and listen to incoming requests.

  ---

  Returns Observable<ServiceRequest>

stop

• stop(): void

• Stop the service.

  ---

  Returns void

staticget

• get(service: string, payload: Object): Promise<Object>

• Send a request to a Service and wait for a reply with a payload..

  ---

  Parameters

  • service: string

    the service id

  • payload: Object

    the message payload

  Returns Promise<Object>

  a Promise wrapping the resulting value

staticobserve

• observe(service: string, context: Context, payload?: Object): Observable<Object>

• Send a request to a Service and subscribe to notifications published from that service.

  ---

  Parameters

  • service: string

    the service id

  • context: Context

    the context used to link its lifecycle to this subscription

  • optionalpayload: Object

    the message payload, optional

  Returns Observable<Object>

  an Observable emitting notifications

staticpublish

• publish(service: string, payload: Object): Promise<void>

• Publish a message on the specified service without waiting for any acknowledge

  ---

  Parameters

  • service: string

    the service id

  • payload: Object

  Returns Promise<void>

staticsend

• send(service: string, payload?: Object): Promise<void>

• Send a request to a Service and wait for an ack.

  ---

  Parameters

  • service: string

    the service id

  • optionalpayload: Object

    the message payload, optional

  Returns Promise<void>

  a Promise that completes when the call has been executed