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bug of delaying the message

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Kfir Dayan 2023-07-08 11:29:50 +03:00
parent 44feb4d01c
commit f1d02aadc0
3 changed files with 29 additions and 45 deletions
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44
notification-service/src/rabbitmq/RabbitMQ.ts
View file

@ -30,12 +30,7 @@ export class RabbitMQ {
}
async create(payload: ITodo, delayTimeForQueue: number) {
let reQueueTime = 0;
if (delayTimeForQueue > 900) {
reQueueTime = delayTimeForQueue - 900;
delayTimeForQueue = 900;
}
const message = JSON.stringify({ payload, delayTimeForQueue, reQueueTime });
const message = JSON.stringify({ payload, delayTimeForQueue });
const options = { persistent: true, expiration: delayTimeForQueue.toString() };
try {
@ -53,41 +48,24 @@ export class RabbitMQ {
console.log('Consumer started, waiting for messages...');
this.channel.consume(this.queueName, async (message) => {
if (message) {
const { payload, delayTimeForQueue, reQueueTime } = JSON.parse(message.content.toString()) as {
const { payload, delayTimeForQueue } = JSON.parse(message.content.toString()) as {
payload: ITodo;
delayTimeForQueue: number;
reQueueTime: number;
};
console.log('Received notification:', payload);
if (reQueueTime === 0) {
try {
await MongoDb.updateTodoStatus(payload);
} catch {
await this.create(payload, delayTimeForQueue);
this.channel.ack(message);
console.log('Published new message with delay, THE DB IS DOWN!: ', delayTimeForQueue);
return;
}
} else if (reQueueTime >= 900) {
const newDelayTime = 900;
const newReQueueTime = reQueueTime - 900;
await this.create(payload, newDelayTime);
console.log('Published new message with delay:', newDelayTime);
this.channel.ack(message);
if (newReQueueTime > 0) {
return; // Wait for the next consumer to process the message with the remaining delay
}
} else {
const newDelayTime = reQueueTime;
await this.create(payload, newDelayTime);
console.log('Published new message with delay:', newDelayTime);
try {
await MongoDb.updateTodoStatus(payload);
console.log('Updated todo status in the DB');
} catch {
await this.create(payload, delayTimeForQueue);
this.channel.ack(message);
console.log('Published new message with delay, THE DB IS DOWN!: ', delayTimeForQueue);
return;
}
this.channel.ack(message);
}
});
} catch (error) {

2
request.http
View file

@ -9,7 +9,7 @@ Content-Type: application/json
{
"title": "Go to the gym",
"description": "Go to the gym at 8pm",
"due_date": "2023-07-08 10:55:00"
"due_date": "2023-07-08 12:00:00"
}
### update request

28
todo-service/src/rabbitmq/RabbitMQ.ts
View file

@ -18,20 +18,26 @@ export class RabbitMQ {
}
async connect() {
const connection = await amqp.connect({
protocol: 'amqp',
hostname: env.RABBITMQ_HOST,
port: parseInt(env.RABBITMQ_PORT),
username: env.RABBITMQ_USERNAME,
password: env.RABBITMQ_PASSWORD,
});
this.channel = await connection.createChannel();
await this.channel.assertQueue(this.queueName, { durable: true });
try {
const connection = await amqp.connect({
protocol: 'amqp',
hostname: env.RABBITMQ_HOST,
port: parseInt(env.RABBITMQ_PORT),
username: env.RABBITMQ_USERNAME,
password: env.RABBITMQ_PASSWORD,
});
this.channel = await connection.createChannel();
await this.channel.assertQueue(this.queueName, { durable: true });
console.log('Channel and queue asserted successfully');
} catch (error) {
console.error('Error connecting to RabbitMQ:', error);
throw error;
}
}
async create(payload: ITodo, delayTimeForQueue: number) {
const message = JSON.stringify({ payload, delayTimeForQueue });
const options = { persistent: true, expiration: delayTimeForQueue.toString() };
const message = JSON.stringify({ payload, delayTimeForQueue: delayTimeForQueue });
const options = { persistent: true, delayTimeForQueue: delayTimeForQueue.toString() };
try {
await this.channel.sendToQueue(this.queueName, Buffer.from(message), options);