Azure: How to move messages from poison queue to back to main queue?

Question

I\'m wondering if there is a tool or lib that can move messages between queues? Currently, i\'m doing something like below

public static void ProcessQueueMes         


        

Answer 1

To anyone coming here looking for a Node equivalent of @MitchWheats answer using an Azure Function.

import AzureStorage from 'azure-storage'
import { Context, HttpRequest } from '@azure/functions'
import util from 'util'

const queueService = AzureStorage.createQueueService()
queueService.messageEncoder = new AzureStorage.QueueMessageEncoder.TextBase64QueueMessageEncoder()

const deleteMessage = util.promisify(queueService.deleteMessage).bind(queueService)
const createMessage = util.promisify(queueService.createMessage).bind(queueService)
const getMessage = util.promisify(queueService.getMessage).bind(queueService)

export async function run (context: Context, req: HttpRequest): Promise {
  try {
    const poisonQueue = (req.query.queue || (req.body && req.body.queue));
    const targetQueue = poisonQueue.split('-')[0]

    let count = 0

    while (true) {
      const message = await getMessage(poisonQueue)
      if (!message) { break; }
      if (message.messageText && message.messageId && message.popReceipt) {
        await createMessage(targetQueue, message.messageText)
        await deleteMessage(poisonQueue, message.messageId, message.popReceipt)
      }
      count++
    }

    context.res = {
      body: `Replayed ${count} messages from ${poisonQueue} on ${targetQueue}`
    };
  } catch (e) {
    context.res = { status: 500 }
  }
}

To use the function you need to you provide connection information for the storage account used for your storage queues. This is provided as environment variables. Either you provide AZURE_STORAGE_ACCOUNT and AZURE_STORAGE_ACCESS_KEY, or AZURE_STORAGE_CONNECTION_STRING. More on this is available in the Azure Storage SDK docs.

Also wrote a few lines about it in this Medium article