JS: Polling

readme.md

Usage

const response = await poll(
  async () => this.account.client.getTx(tx.transactionHash),
  (tx) => tx?.code === 0,
  2000
)

poll.ts

import { delay } from './time'

export async function poll<T = any>(callback: () => Promise<T>, condition: (t: T) => boolean, ms: number): Promise<T> {
  let first = true

  while (true) {
    const data = first ? await callback() : await delay(ms).then(callback)

    if (condition(data) === true) {
      return data
    }
  }
}