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SQS messages are coming back to DLQ?

I have written the following script to move messages from DLQ to MainQ.
'use strict'
import { readFileSync } from "fs";
import {
DeleteMessageCommand,
SQSClient,
GetQueueUrlCommand,
SendMessageCommand,
ReceiveMessageCommand,
GetQueueAttributesCommand
} from '#aws-sdk/client-sqs';
const REGION = 'us-east-1';
const sqs = new SQSClient({ region: REGION });
async function getMessageCount(queueUrl) {
const params = { AttributeNames: ['ApproximateNumberOfMessages'], QueueUrl: queueUrl };
try {
const data = await sqs.send(new GetQueueAttributesCommand(params));
// console.log(data);
return data.Attributes.ApproximateNumberOfMessages;
} catch (err) {
console.error(err);
}
}
async function reprocessMessages(dlqQueue, mainQueue) {
try {
const response1 = await sqs.send(new GetQueueUrlCommand({ QueueName: dlqQueue }));
const response2 = await sqs.send(new GetQueueUrlCommand({ QueueName: mainQueue }));
const dlqQueueUrl = response1.QueueUrl;
const mainQueueUrl = response2.QueueUrl;
const messageCount = await getMessageCount(dlqQueueUrl);
console.log(`Message count ${messageCount}`);
const visibiltyTimeout = Math.ceil(messageCount / 100) * 2;
let count = 0;
while (count <= 50) {
count += await moveMessage(mainQueueUrl, dlqQueueUrl, 5);
}
console.log(`Moved ${count} messages`);
return "Completed";
} catch (err) {
console.error(err);
}
}
async function moveMessage(mainQueueUrl, dlqQueueUrl, visibiltyTimeout) {
try {
const receiveMessageParams = {
MaxNumberOfMessages: 9,
MessageAttributeNames: ['All'],
QueueUrl: dlqQueueUrl,
VisibilityTimeout: visibiltyTimeout,
WaitTimeSeconds: 1
};
const receiveData = await sqs.send(new ReceiveMessageCommand(receiveMessageParams));
// console.log(receiveData);
if (!receiveData.Messages) {
// console.log("finished");
return 0;
}
const messages = [];
receiveData.Messages.forEach(msg => {
messages.push({ id: msg.MessageId, msgAttributes: msg.MessageAttributes, body: msg.Body, receiptHandle: msg.ReceiptHandle });
});
const sendMsg = async ({ id, msgAttributes, body, _ }) => {
const sendMessageParams = {
MessageId: id,
MessageAttributes: msgAttributes,
MessageBody: body,
QueueUrl: mainQueueUrl
};
const sentData = await sqs.send(new SendMessageCommand(sendMessageParams));
// console.log("Success, message sent. MessageID: ", sentData.MessageId);
return 'Success';
};
const deleteMsg = async ({ id, receiptHandle }) => {
const deleteMessageParams = {
MessageId: id,
QueueUrl: dlqQueueUrl,
ReceiptHandle: receiptHandle
};
const deleteData = await sqs.send(new DeleteMessageCommand(deleteMessageParams));
// console.log("Message deleted", deleteData);
return 'Deleted';
};
const sent = await Promise.all(messages.map(sendMsg));
console.log(sent);
const deleted = await Promise.all(messages.map(deleteMsg));
console.log(deleted);
console.log(sent.length);
return sent.length;
// return 1;
} catch (err) {
console.log(err);
}
}
function main() {
const queues = readFileSync('queues.txt', 'utf8').split('\n');
queues.map(async elem => {
const [dlqQueue, mainQueue] = elem.split(' ');
console.log(`Moving messages from ${dlqQueue} to ${mainQueue}`);
const response = await reprocessMessages(dlqQueue, mainQueue);
console.log(response);
});
}
main()
This script moves the message from DLQ to MainQ and shows the new count of the DLQ decreased by the number of messages. However, when those messages in MainQ fail they again come back to DLQ thus keeping the count same as before reprocessing. But, after a while I see that the messages in DLQ increase by the same amount as the number of messages processed.
For instance for the below case I moved 54 messages and the screenshots for the queue counts are attached after each stage.

innerText value is undefined when returned from promise despite being there on the console

I'm using Node JS, here's the code
import fetch from 'node-fetch';
import { JSDOM } from 'jsdom';
import {Appartment} from "./models/Appartment.mjs"
let applist = []
let multipleDivs = []
async function kijAppartments() {
try {
const kijCall = await fetch(`https://www.kijiji.ca/b-ville-de-montreal/appartement-4-1-2/k0l1700281?rb=true&dc=true`);
if(!kijCall.ok) {
throw new Error (
`HTTP error: ${kijCall.status}`
)
}
const response = await kijCall.text()
const dom = new JSDOM(response)
multipleDivs = dom.window.document.querySelectorAll(".info-container")
// console.log(multipleDivs)
return multipleDivs
}
catch(error) {
console.log("Error Made")
console.log(error)
}
}
async function arrayOfApps() {
await kijAppartments()
.then(data => {
data.forEach(div => {
const newApp = new Appartment
newApp.price = div.childNodes[1].innerText
newApp.title = div.childNodes[3].innerText
newApp.description = div.childNodes[7].innerText
console.log(newApp)
})
})
}
await arrayOfApps()
If you go on this link and try the following const aList = document.querySelectorAll(".info-container"), you get access to all of the nodes, innerHTML and innerText all work and give you access to the actual value but for some reason, when I try to run this code in the terminal, the value of all my objects is undefined.

You should use textContent instead of innerText.
Here's my solution:
const fetch = (...args) => import('node-fetch').then(({default: fetch}) => fetch(...args));
const jsdom = require('jsdom');
const { JSDOM } = jsdom;
class Appartment {
price
title
description
location
}
let multipleDivs = []
const appartments = []
function trim(text){
return text.replace(/(\r\n|\n|\r)/gm, "").trim()
}
async function fetchKijijiAppartments() {
const url = `https://www.kijiji.ca/b-ville-de-montreal/appartement-4-1-2/k0l1700281?rb=true&dc=true`
try {
const kijijiRes = await fetch(url);
if (!kijijiRes.ok) {
throw new Error(
`HTTP error: ${kijijiRes.status}`
)
}
const response = await kijijiRes.text()
// console.log("DB: ", response)
const dom = new JSDOM(response)
multipleDivs = dom.window.document.querySelectorAll(".info-container")
//console.log("DB: " multipleDivs)
return multipleDivs
} catch (error) {
console.log("Error Made")
console.log(error)
}
}
async function scrapeAppartments() {
await fetchKijijiAppartments()
.then(data => {
data.forEach(div => {
const appartement = new Appartment
appartement.price = trim(div.querySelector(".price").textContent)
appartement.title = trim(div.querySelector(".title").textContent)
appartement.description = trim(div.querySelector(".description").textContent)
console.log("DB: ", appartement)
appartments.push(appartement)
})
})
}
scrapeAppartments()

How do I remove jquery from here? I want to do this with JavaScript

I would like to remove the jquery from here and do it with simple javascript. How can I do that? Or how could I do that but in a simpler and better way?
<script>
let serverData = {
'server1': [],
'server2': [],
'server3': [],
};
const body = $('body');
function displayInTable(server) {
if(serverData[server]) {
const serverTable = $(`tbody#${server}`);
serverTable.html('');
serverData[server].forEach((user) => {
serverTable.append('<tr><td>'+user.id+'</td><td>'+user.nume+'</td><td>'+user.autor+'</td><td>'+user.album+'</td><td>'+user.gen+'</td><td>'+user.an+'</td></tr>');
})
}
}
async function firstFetch() {
const request = await fetch('ajax/colectareDate.php');
const response = await request.json();
if(response) {
Object.keys(response).forEach((server) => {
serverData[server] = response[server]
displayInTable(server)
})
}
}
[13:35]
body.on('submit', '#mainForm', async function(e) {
e.preventDefault();
const request = await fetch('ajax/inserareDate.php?'+$(this).serialize());
const server = 'server1';
serverData[server] = await request.json();
displayInTable(server);
});
body.on('click', '.syncButton', async function() {
const from = $(this).attr('data-from');
const to = $(this).attr('data-to');
const request = await fetch('ajax/sincronizare.php?from='+from+'&to='+to);
serverData[to] = await request.json();
displayInTable(to);
});
</script>

Solana method cannot convert string to Base58 format

I'm using #solana/web3.js and have this code:
const web3 = require("#solana/web3.js");
const clusterApi = process.env.SOLANA_CLUSTER;
module.exports = {
getConfirmedSignaturesForAddress: async address => {
try {
const connection = new web3.Connection(web3.clusterApiUrl(clusterApi), "confirmed");
const result = await connection.getSignaturesForAddress(address, {
limit: 25
});
return {
tx: result,
status: true
};
} catch (e) {
return {
status: false,
error: e.message
};
}
}
}
And every time I call this function I get this error:
{ status: false, error: 'address.toBase58 is not a function' }
I was trying to send it already converted to Base58, but it just doesn't work. What's wrong?

This is how I solved this problem. Generally speaking, you need to convert it not just by converting to pure Base58, but like this:
const web3 = require("#solana/web3.js");
const bip39 = require("bip39");
const getKeyFromMemonic = async mnemonic => {
return new Promise((resolve, reject) => {
bip39
.mnemonicToSeed(mnemonic)
.then(buffer => {
const a = new Uint8Array(buffer.toJSON().data.slice(0, 32));
const key = web3.Keypair.fromSeed(a);
resolve(key);
})
.catch(err => reject(err));
});
};
getSignaturesForAddress: async address => {
try {
const key = await getKeyFromMemonic(address);
const connection = new web3.Connection(web3.clusterApiUrl(clusterApi), "confirmed");
const result = await connection.getSignaturesForAddress(key.publicKey);
return {
tx: result,
status: true
};
} catch (e) {
return {
status: false,
error: e.message
};
}
}

How can I update more than 500 docs in Firestore using Batch?

I'm trying to update a field timestamp with the Firestore admin timestamp in a collection with more than 500 docs.
const batch = db.batch();
const serverTimestamp = admin.firestore.FieldValue.serverTimestamp();
db
.collection('My Collection')
.get()
.then((docs) => {
serverTimestamp,
}, {
merge: true,
})
.then(() => res.send('All docs updated'))
.catch(console.error);
This throws an error
{ Error: 3 INVALID_ARGUMENT: cannot write more than 500 entities in a single call
at Object.exports.createStatusError (C:\Users\Growthfile\Desktop\cf-test\functions\node_modules\grpc\src\common.js:87:15)
at Object.onReceiveStatus (C:\Users\Growthfile\Desktop\cf-test\functions\node_modules\grpc\src\client_interceptors.js:1188:28)
at InterceptingListener._callNext (C:\Users\Growthfile\Desktop\cf-test\functions\node_modules\grpc\src\client_interceptors.js:564:42)
at InterceptingListener.onReceiveStatus (C:\Users\Growthfile\Desktop\cf-test\functions\node_modules\grpc\src\client_interceptors.js:614:8)
at callback (C:\Users\Growthfile\Desktop\cf-test\functions\node_modules\grpc\src\client_interceptors.js:841:24)
code: 3,
metadata: Metadata { _internal_repr: {} },
details: 'cannot write more than 500 entities in a single call' }
Is there a way that I can write a recursive method which creates a batch object updating a batch of 500 docs one by one until all the docs are updated.
From the docs I know that delete operation is possible with the recursive approach as mentioned here:
https://firebase.google.com/docs/firestore/manage-data/delete-data#collections
But, for updating, I'm not sure how to end the execution since the docs are not being deleted.

I also ran into the problem to update more than 500 documents inside a Firestore collection. And i would like to share how i solved this problem.
I use cloud functions to update my collection inside Firestore but this should also work on client side code.
The solution counts every operation which is made to the batch and after the limit is reached a new batch is created and pushed to the batchArray.
After all updates are completed the code loops through the batchArray and commits every batch which is inside the array.
It is important to count every operation set(), update(), delete() which is made to the batch because they all count to the 500 operation limit.
const documentSnapshotArray = await firestore.collection('my-collection').get();
const batchArray = [];
batchArray.push(firestore.batch());
let operationCounter = 0;
let batchIndex = 0;
documentSnapshotArray.forEach(documentSnapshot => {
const documentData = documentSnapshot.data();
// update document data here...
batchArray[batchIndex].update(documentSnapshot.ref, documentData);
operationCounter++;
if (operationCounter === 499) {
batchArray.push(firestore.batch());
batchIndex++;
operationCounter = 0;
}
});
batchArray.forEach(async batch => await batch.commit());
return;

I liked this simple solution:
const users = await db.collection('users').get()
const batches = _.chunk(users.docs, 500).map(userDocs => {
const batch = db.batch()
userDocs.forEach(doc => {
batch.set(doc.ref, { field: 'myNewValue' }, { merge: true })
})
return batch.commit()
})
await Promise.all(batches)
Just remember to add import * as _ from "lodash" at the top. Based on this answer.

You can use default BulkWriter. This method used 500/50/5 rule.
Example:
let bulkWriter = firestore.bulkWriter();
bulkWriter.create(documentRef, {foo: 'bar'});
bulkWriter.update(documentRef2, {foo: 'bar'});
bulkWriter.delete(documentRef3);
await close().then(() => {
console.log('Executed all writes');
});

As mentioned above, #Sebastian's answer is good and I upvoted that too. Although faced an issue while updating 25000+ documents in one go.
The tweak to logic is as below.
console.log(`Updating documents...`);
let collectionRef = db.collection('cities');
try {
let batch = db.batch();
const documentSnapshotArray = await collectionRef.get();
const records = documentSnapshotArray.docs;
const index = documentSnapshotArray.size;
console.log(`TOTAL SIZE=====${index}`);
for (let i=0; i < index; i++) {
const docRef = records[i].ref;
// YOUR UPDATES
batch.update(docRef, {isDeleted: false});
if ((i + 1) % 499 === 0) {
await batch.commit();
batch = db.batch();
}
}
// For committing final batch
if (!(index % 499) == 0) {
await batch.commit();
}
console.log('write completed');
} catch (error) {
console.error(`updateWorkers() errored out : ${error.stack}`);
reject(error);
}

Explanations given on previous comments already explain the issue.
I'm sharing the final code that I built and worked for me, since I needed something that worked in a more decoupled manner, instead of the way that most of the solutions presented above do.
import { FireDb } from "#services/firebase"; // = firebase.firestore();
type TDocRef = FirebaseFirestore.DocumentReference;
type TDocData = FirebaseFirestore.DocumentData;
let fireBatches = [FireDb.batch()];
let batchSizes = [0];
let batchIdxToUse = 0;
export default class FirebaseUtil {
static addBatchOperation(
operation: "create",
ref: TDocRef,
data: TDocData
): void;
static addBatchOperation(
operation: "update",
ref: TDocRef,
data: TDocData,
precondition?: FirebaseFirestore.Precondition
): void;
static addBatchOperation(
operation: "set",
ref: TDocRef,
data: TDocData,
setOpts?: FirebaseFirestore.SetOptions
): void;
static addBatchOperation(
operation: "create" | "update" | "set",
ref: TDocRef,
data: TDocData,
opts?: FirebaseFirestore.Precondition | FirebaseFirestore.SetOptions
): void {
// Lines below make sure we stay below the limit of 500 writes per
// batch
if (batchSizes[batchIdxToUse] === 500) {
fireBatches.push(FireDb.batch());
batchSizes.push(0);
batchIdxToUse++;
}
batchSizes[batchIdxToUse]++;
const batchArgs: [TDocRef, TDocData] = [ref, data];
if (opts) batchArgs.push(opts);
switch (operation) {
// Specific case for "set" is required because of some weird TS
// glitch that doesn't allow me to use the arg "operation" to
// call the function
case "set":
fireBatches[batchIdxToUse].set(...batchArgs);
break;
default:
fireBatches[batchIdxToUse][operation](...batchArgs);
break;
}
}
public static async runBatchOperations() {
// The lines below clear the globally available batches so we
// don't run them twice if we call this function more than once
const currentBatches = [...fireBatches];
fireBatches = [FireDb.batch()];
batchSizes = [0];
batchIdxToUse = 0;
await Promise.all(currentBatches.map((batch) => batch.commit()));
}
}

Based on all the above answers, I put together the following pieces of code that one can put into a module in JavaScript back-end and front-end to easily use Firestore batch writes, without worrying about the 500 writes limit.
Back-end (Node.js)
// The Firebase Admin SDK to access Firestore.
const admin = require("firebase-admin");
admin.initializeApp();
// Firestore does not accept more than 500 writes in a transaction or batch write.
const MAX_TRANSACTION_WRITES = 499;
const isFirestoreDeadlineError = (err) => {
console.log({ err });
const errString = err.toString();
return (
errString.includes("Error: 13 INTERNAL: Received RST_STREAM") ||
errString.includes("Error: 4 DEADLINE_EXCEEDED: Deadline exceeded")
);
};
const db = admin.firestore();
// How many transactions/batchWrites out of 500 so far.
// I wrote the following functions to easily use batchWrites wthout worrying about the 500 limit.
let writeCounts = 0;
let batchIndex = 0;
let batchArray = [db.batch()];
// Commit and reset batchWrites and the counter.
const makeCommitBatch = async () => {
console.log("makeCommitBatch");
await Promise.all(batchArray.map((bch) => bch.commit()));
};
// Commit the batchWrite; if you got a Firestore Deadline Error try again every 4 seconds until it gets resolved.
const commitBatch = async () => {
try {
await makeCommitBatch();
} catch (err) {
console.log({ err });
if (isFirestoreDeadlineError(err)) {
const theInterval = setInterval(async () => {
try {
await makeCommitBatch();
clearInterval(theInterval);
} catch (err) {
console.log({ err });
if (!isFirestoreDeadlineError(err)) {
clearInterval(theInterval);
throw err;
}
}
}, 4000);
}
}
};
// If the batchWrite exeeds 499 possible writes, commit and rest the batch object and the counter.
const checkRestartBatchWriteCounts = () => {
writeCounts += 1;
if (writeCounts >= MAX_TRANSACTION_WRITES) {
batchIndex++;
batchArray.push(db.batch());
writeCounts = 0;
}
};
const batchSet = (docRef, docData) => {
batchArray[batchIndex].set(docRef, docData);
checkRestartBatchWriteCounts();
};
const batchUpdate = (docRef, docData) => {
batchArray[batchIndex].update(docRef, docData);
checkRestartBatchWriteCounts();
};
const batchDelete = (docRef) => {
batchArray[batchIndex].delete(docRef);
checkRestartBatchWriteCounts();
};
module.exports = {
admin,
db,
MAX_TRANSACTION_WRITES,
checkRestartBatchWriteCounts,
commitBatch,
isFirestoreDeadlineError,
batchSet,
batchUpdate,
batchDelete,
};
Front-end
// Firestore does not accept more than 500 writes in a transaction or batch write.
const MAX_TRANSACTION_WRITES = 499;
const isFirestoreDeadlineError = (err) => {
return (
err.message.includes("DEADLINE_EXCEEDED") ||
err.message.includes("Received RST_STREAM")
);
};
class Firebase {
constructor(fireConfig, instanceName) {
let app = fbApp;
if (instanceName) {
app = app.initializeApp(fireConfig, instanceName);
} else {
app.initializeApp(fireConfig);
}
this.name = app.name;
this.db = app.firestore();
this.firestore = app.firestore;
// How many transactions/batchWrites out of 500 so far.
// I wrote the following functions to easily use batchWrites wthout worrying about the 500 limit.
this.writeCounts = 0;
this.batch = this.db.batch();
this.isCommitting = false;
}
async makeCommitBatch() {
console.log("makeCommitBatch");
if (!this.isCommitting) {
this.isCommitting = true;
await this.batch.commit();
this.writeCounts = 0;
this.batch = this.db.batch();
this.isCommitting = false;
} else {
const batchWaitInterval = setInterval(async () => {
if (!this.isCommitting) {
this.isCommitting = true;
await this.batch.commit();
this.writeCounts = 0;
this.batch = this.db.batch();
this.isCommitting = false;
clearInterval(batchWaitInterval);
}
}, 400);
}
}
async commitBatch() {
try {
await this.makeCommitBatch();
} catch (err) {
console.log({ err });
if (isFirestoreDeadlineError(err)) {
const theInterval = setInterval(async () => {
try {
await this.makeCommitBatch();
clearInterval(theInterval);
} catch (err) {
console.log({ err });
if (!isFirestoreDeadlineError(err)) {
clearInterval(theInterval);
throw err;
}
}
}, 4000);
}
}
}
async checkRestartBatchWriteCounts() {
this.writeCounts += 1;
if (this.writeCounts >= MAX_TRANSACTION_WRITES) {
await this.commitBatch();
}
}
async batchSet(docRef, docData) {
if (!this.isCommitting) {
this.batch.set(docRef, docData);
await this.checkRestartBatchWriteCounts();
} else {
const batchWaitInterval = setInterval(async () => {
if (!this.isCommitting) {
this.batch.set(docRef, docData);
await this.checkRestartBatchWriteCounts();
clearInterval(batchWaitInterval);
}
}, 400);
}
}
async batchUpdate(docRef, docData) {
if (!this.isCommitting) {
this.batch.update(docRef, docData);
await this.checkRestartBatchWriteCounts();
} else {
const batchWaitInterval = setInterval(async () => {
if (!this.isCommitting) {
this.batch.update(docRef, docData);
await this.checkRestartBatchWriteCounts();
clearInterval(batchWaitInterval);
}
}, 400);
}
}
async batchDelete(docRef) {
if (!this.isCommitting) {
this.batch.delete(docRef);
await this.checkRestartBatchWriteCounts();
} else {
const batchWaitInterval = setInterval(async () => {
if (!this.isCommitting) {
this.batch.delete(docRef);
await this.checkRestartBatchWriteCounts();
clearInterval(batchWaitInterval);
}
}, 400);
}
}
}

No citations or documentation, this code i invented by myself and for me it worked and looks clean, and simple for read and usage. If some one like it, then can use it too.
Better make autotest becose code use private var _ops wich can be changed after packages upgrade. Forexample in old versions its can be _mutations
async function commitBatch(batch) {
const MAX_OPERATIONS_PER_COMMIT = 500;
while (batch._ops.length > MAX_OPERATIONS_PER_COMMIT) {
const batchPart = admin.firestore().batch();
batchPart._ops = batch._ops.splice(0, MAX_OPERATIONS_PER_COMMIT - 1);
await batchPart.commit();
}
await batch.commit();
}
Usage:
const batch = admin.firestore().batch();
batch.delete(someRef);
batch.update(someRef);
...
await commitBatch(batch);

Simple solution
Just fire twice ?
my array is "resultsFinal"
I fire batch once with a limit of 490 , and second with a limit of the lenght of the array ( results.lenght)
Works fine for me :)
How you check it ?
You go to firebase and delete your collection , firebase say you have delete XXX docs , same as the lenght of your array ? Ok so you are good to go
async function quickstart(results) {
// we get results in parameter for get the data inside quickstart function
const resultsFinal = results;
// console.log(resultsFinal.length);
let batch = firestore.batch();
// limit of firebase is 500 requests per transaction/batch/send
for (i = 0; i < 490; i++) {
const doc = firestore.collection('testMore490').doc();
const object = resultsFinal[i];
batch.set(doc, object);
}
await batch.commit();
// const batchTwo = firestore.batch();
batch = firestore.batch();
for (i = 491; i < 776; i++) {
const objectPartTwo = resultsFinal[i];
const doc = firestore.collection('testMore490').doc();
batch.set(doc, objectPartTwo);
}
await batch.commit();
}