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API

Classes

PollerService

Methods
track

Starts the polling and returns a PollerUnit instance. You can track the state of polling using the PollerUnit object and cancel the polling if necessary.

Parameters
Name Type Description
options Object setup poller's properties
pollingArgs* * args to pass to the polling method

The options parameter is used to configure polling. Allowed keys and default values are stated below. Note that either pollTask or pollFunction has to be present in the options object.

pollingInterval: elapsed time in ms between the completion of the last request and the next one. default: 1500

retryLimit: amount of retry attempt until timeout. If you specify retryLimit as Infinity or Number.POSITIVE_INFINITY, polling should last forever. default: 40

pollTask: the task that is to be performed on every polling attempt.

pollFunction: an async function that is to be called on every polling attempt.

PollerUnit

Attributes
  • isError :boolean readOnly

    true if polling is failed(an exception throwed or promise rejected), false otherwise.

  • isFailed :boolean readOnly

    alias of isError

  • isSuccessful :boolean readOnly

    true if polling is succeeded(a truthy value is returned), false otherwise.

  • isRunning :boolean readOnly

    true if polling is running, meaning it is not failed, succeeded, canceled or timed out.

  • isCanceled :boolean readOnly

    true if polling is canceled using abort() method.

  • isCancelled :boolean readOnly

    alias of isCanceled

  • isTimeout :boolean readOnly

    true if polling terminates without success, failure and cancellation.

  • retryCount :Number readOnly

    returns the number of pollings made since polling started.

Methods
abort

Cancels the ongoing polling. Upon calling this method isCancelled attribute is set to true.