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Kfir Dayan 2023-07-09 00:00:11 +03:00
parent a0334bf886
commit 3e91c159d7
18 changed files with 222 additions and 333 deletions
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20
README.md
View file

@ -13,53 +13,59 @@ This README.md file provides instructions for setting up and running various com
``` ```
## SQS/Terraform ## SQS/Terraform
Before proceeding, ensure that you have Terraform installed and have configured AWS CLI with the keys of an authorized user. Before proceeding, ensure that you have Terraform installed and have configured AWS CLI with the keys of an authorized user.
1. Navigate to the /infra/terraform directory. 1. Navigate to the /infra/terraform directory.
2. Run the following command to initialize Terraform: 2. Run the following command to initialize Terraform:
```terraform ```terraform
terraform init terraform init
``` ```
3. Run the following command to apply the Terraform configuration: 3. Run the following command to apply the Terraform configuration:
```terraform ```terraform
terraform apply terraform apply
``` ```
## NotificationService ## NotificationService
Before running the NotificationService, ensure that you have Node.js, TypeScript (tsc), and npm installed. Before running the NotificationService, ensure that you have Node.js, TypeScript (tsc), and npm installed.
Navigate to the /notification-service directory. Navigate to the /notification-service directory.
Run the following command to install the dependencies: Run the following command to install the dependencies:
```npm ```npm
npm install npm install
``` ```
Run the following command to build and run (Dem mode)the project: Run the following command to build and run (Dem mode)the project:
```npm ```npm
npm run dev npm run dev
``` ```
## TodoService ## TodoService
Before running the TodoService, ensure that you have Node.js, TypeScript (tsc) and npm installed. Before running the TodoService, ensure that you have Node.js, TypeScript (tsc) and npm installed.
Navigate to the /todo-service directory. Navigate to the /todo-service directory.
Run the following command to install the dependencies: Run the following command to install the dependencies:
```npm ```npm
npm install npm install
``` ```
Run the following command to build and run (Dem mode)the project: Run the following command to build and run (Dem mode)the project:
```npm ```npm
npm run dev npm run dev
``` ```
## Requests ## Requests
Examples are located in request.http - can be run in VSCode with the REST Client extension. Examples are located in request.http - can be run in VSCode with the REST Client extension.

2
infra/docker/docker-compose.yaml
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@ -1,4 +1,4 @@
version: '3.8' version: "3.8"
services: services:
mongodb: mongodb:
image: arm64v8/mongo:4.0 image: arm64v8/mongo:4.0

1
infra/docker/mongo-init-scripts/redis-init.conf
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@ -1 +0,0 @@
requirepass your_password

7
notification-service/.env.eample
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@ -1,10 +1,3 @@
## AWS-SDK ##
AWS_ACCESS_KEY_ID={AWS_ACCESS_KEY_ID}
AWS_SECRET_ACCESS_KEY={AWS_SECRET_ACCESS_KEY}
AWS_REGION={AWS_REGION}
AWS_SQS_URL=https://sqs.{AWS_REGION}.amazonaws.com/{ACCOUNT_ID}/
AWS_SQS_QUEUE_NAME={NAME_OF_QUEUE}
## MONGO USER ## ## MONGO USER ##
DATABASE_URL=mongodb://{USER}:{PASSWORD}@localhost:27017/{DB_NAME} DATABASE_URL=mongodb://{USER}:{PASSWORD}@localhost:27017/{DB_NAME}
MONGO_DB_NAME={USER_DB_NAME} MONGO_DB_NAME={USER_DB_NAME}

122
notification-service/src/aws/Sqs.ts
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@ -1,122 +0,0 @@
// import aws from 'aws-sdk';
// import { ITodo } from '../interfaces/ITodo';
// import { MongoDb } from '../mongodb/MongoDb';
// const env = require('dotenv').config().parsed;
// export class Sqs {
// sqs: aws.SQS;
// queueUrl: string;
// constructor() {
// aws.config.update({
// accessKeyId: env.AWS_ACCESS_KEY_ID,
// secretAccessKey: env.AWS_SECRET_ACCESS_KEY,
// });
// this.sqs = new aws.SQS();
// this.queueUrl = env.AWS_SQS_URL + env.AWS_SQS_QUEUE_NAME;
// if (this.sqs) {
// console.log("SQS connected");
// }
// }
// async create(payload: ITodo, delayTimeForQueue: number) {
// let reQueueTime = 0;
// if (delayTimeForQueue > 900) {
// reQueueTime = delayTimeForQueue - 900;
// delayTimeForQueue = 900;
// }
// const params = {
// DelaySeconds: delayTimeForQueue,
// MessageAttributes: {},
// MessageBody: JSON.stringify({ payload, delayTimeForQueue, reQueueTime }),
// QueueUrl: this.queueUrl,
// };
// try {
// const data = await this.sqs.sendMessage(params).promise();
// console.log("Message sent to the queue", data.MessageId);
// return data;
// } catch (error) {
// console.log("Error", error);
// throw error;
// }
// }
// async startConsumer() {
// while (true) {
// const message = await this.getNextQueue();
// if (message) {
// const { payload, delayTimeForQueue, reQueueTime } = JSON.parse(message.Body) 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);
// await this.deleteMessage(message.ReceiptHandle);
// console.log("Published new queue with delay, THE DB IS DOWN!:", delayTimeForQueue);
// }
// await this.deleteMessage(message.ReceiptHandle);
// } else if (reQueueTime >= 900) {
// const newDelayTime = 900;
// const newReQueueTime = reQueueTime - 900;
// await this.create(payload, newDelayTime);
// await this.deleteMessage(message.ReceiptHandle);
// console.log("Published new queue with delay:", newDelayTime);
// } else {
// const newDelayTime = reQueueTime;
// await this.create(payload, newDelayTime);
// await this.deleteMessage(message.ReceiptHandle);
// console.log("Published new queue with delay:", newDelayTime);
// }
// }
// }
// }
// private getNextQueue = async () => {
// const params = {
// QueueUrl: this.queueUrl,
// MaxNumberOfMessages: 1,
// VisibilityTimeout: 30,
// WaitTimeSeconds: 20, // Increase the WaitTimeSeconds for long polling
// };
// try {
// const data = await this.sqs.receiveMessage(params).promise();
// const message = data.Messages ? data.Messages[0] : null;
// return message;
// } catch (error) {
// console.error("Error retrieving message from SQS:", error);
// return null;
// }
// }
// private deleteMessage = async (receiptHandle: string) => {
// const params = {
// QueueUrl: this.queueUrl,
// ReceiptHandle: receiptHandle,
// };
// try {
// await this.sqs.deleteMessage(params).promise();
// console.log("Message deleted");
// } catch (error) {
// console.error("Error deleting message from SQS:", error);
// }
// }
// }

2
notification-service/src/interfaces/ITodo.ts
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@ -1,4 +1,4 @@
import { ObjectId } from 'mongodb'; import { ObjectId } from "mongodb";
export interface ITodo { export interface ITodo {
_id: ObjectId; _id: ObjectId;

12
notification-service/src/mongodb/MongoDb.ts
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@ -1,7 +1,7 @@
import { MongoClient, ObjectId } from 'mongodb'; import { MongoClient, ObjectId } from "mongodb";
import { ITodo } from '../interfaces/ITodo'; import { ITodo } from "../interfaces/ITodo";
const env = require('dotenv').config().parsed; const env = require("dotenv").config().parsed;
export class MongoDbModel { export class MongoDbModel {
client: MongoClient; client: MongoClient;
@ -14,10 +14,10 @@ export class MongoDbModel {
try { try {
await this.client.connect(); await this.client.connect();
const db = this.client.db(env.MONGO_DB_NAME); const db = this.client.db(env.MONGO_DB_NAME);
const todosCollection = db.collection('todos'); const todosCollection = db.collection("todos");
const result = await todosCollection.updateOne( const result = await todosCollection.updateOne(
{ _id: new ObjectId(todo._id) }, { _id: new ObjectId(todo._id) },
{ $set: { status: 'completed' } } { $set: { status: "completed" } }
); );
console.log(`Updated status of Todo ${todo._id} to completed`); console.log(`Updated status of Todo ${todo._id} to completed`);
} catch (error) { } catch (error) {
@ -25,5 +25,5 @@ export class MongoDbModel {
} finally { } finally {
await this.client.close(); await this.client.close();
} }
} };
} }

42
notification-service/src/rabbitmq/RabbitMQ.ts
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@ -1,8 +1,8 @@
import amqp, { ConsumeMessage } from 'amqplib'; import amqp, { ConsumeMessage } from "amqplib";
import { ITodo } from '../interfaces/ITodo'; import { ITodo } from "../interfaces/ITodo";
import { MongoDbModel } from '../mongodb/MongoDb'; import { MongoDbModel } from "../mongodb/MongoDb";
const env = require('dotenv').config().parsed; const env = require("dotenv").config().parsed;
export class RabbitMQ { export class RabbitMQ {
channel: amqp.Channel; channel: amqp.Channel;
@ -15,17 +15,19 @@ export class RabbitMQ {
this.mongoClient = new MongoDbModel(); this.mongoClient = new MongoDbModel();
this.connect().then(() => { this.connect()
console.log('RabbitMQ connected'); .then(() => {
}).catch((error) => { console.log("RabbitMQ connected");
console.error('Error connecting to RabbitMQ:', error); })
.catch((error) => {
console.error("Error connecting to RabbitMQ:", error);
}); });
} }
async connect() { async connect() {
try { try {
const connection = await amqp.connect({ const connection = await amqp.connect({
protocol: 'amqp', protocol: "amqp",
hostname: env.RABBITMQ_HOST, hostname: env.RABBITMQ_HOST,
port: parseInt(env.RABBITMQ_PORT), port: parseInt(env.RABBITMQ_PORT),
username: env.RABBITMQ_USERNAME, username: env.RABBITMQ_USERNAME,
@ -34,22 +36,29 @@ export class RabbitMQ {
this.channel = await connection.createChannel(); this.channel = await connection.createChannel();
await this.channel.assertQueue(this.queueName); await this.channel.assertQueue(this.queueName);
console.log('Channel and queue asserted successfully #####'); console.log("Channel and queue asserted successfully #####");
} catch (error) { } catch (error) {
console.error('Error connecting to RabbitMQ:', error); console.error("Error connecting to RabbitMQ:", error);
throw error; throw error;
} }
} }
async create(payload: ITodo, delayTimeForQueue: number) { async create(payload: ITodo, delayTimeForQueue: number) {
const message = JSON.stringify({ payload, delayTimeForQueue }); const message = JSON.stringify({ payload, delayTimeForQueue });
const options = { persistent: true, expiration: delayTimeForQueue.toString() }; const options = {
persistent: true,
expiration: delayTimeForQueue.toString(),
};
try { try {
await this.channel.sendToQueue(this.queueName, Buffer.from(message), options); await this.channel.sendToQueue(
console.log('Message sent to the queue'); this.queueName,
Buffer.from(message),
options
);
console.log("Message sent to the queue");
} catch (error) { } catch (error) {
console.error('Error sending message to RabbitMQ:', error); console.error("Error sending message to RabbitMQ:", error);
throw error; throw error;
} }
} }
@ -61,12 +70,11 @@ export class RabbitMQ {
if (message) { if (message) {
const todo = JSON.parse(message.content.toString()); const todo = JSON.parse(message.content.toString());
this.channel.ack(message); this.channel.ack(message);
console.log('Received notification:', todo); console.log("Received notification:", todo);
} }
}); });
} }
// try { // try {
// console.log('Consumer started, waiting for messages...'); // console.log('Consumer started, waiting for messages...');
// this.channel.consume(this.queueName, async (message) => { // this.channel.consume(this.queueName, async (message) => {

50
todo-service/src/aws/Sqs.ts
View file

@ -1,50 +0,0 @@
import aws from 'aws-sdk';
import { ITodo } from '../schemas/todoSchema';
const env = require('dotenv').config().parsed;
export class Sqs {
sqs: aws.SQS;
queueUrl: string;
constructor() {
aws.config.update({
accessKeyId: env.AWS_ACCESS_KEY_ID,
secretAccessKey: env.AWS_SECRET_ACCESS_KEY,
});
this.sqs = new aws.SQS();
this.queueUrl = env.AWS_SQS_URL + env.AWS_SQS_QUEUE_NAME;
if (this.sqs) {
console.log("SQS connected")
}
}
async create(payload: ITodo, delayTimeForQueue: number) {
let reQueueTime = 0;
if (delayTimeForQueue > 900) {
reQueueTime = delayTimeForQueue - 900;
delayTimeForQueue = 900;
}
const params = {
DelaySeconds: delayTimeForQueue,
MessageAttributes: {},
MessageBody: JSON.stringify({ payload, delayTimeForQueue, reQueueTime }),
QueueUrl: this.queueUrl,
};
return new Promise((resolve, reject) => {
this.sqs.sendMessage(params, (err, data) => {
if (err) {
console.log("Error", err);
reject(err);
} else {
console.log("Message sent to the queue", data.MessageId)
resolve(data);
}
});
});
}
}

63
todo-service/src/controllers/todoController.ts
View file

@ -1,11 +1,11 @@
import { NextFunction, Request, Response } from 'express'; import { NextFunction, Request, Response } from "express";
import { ApiError } from '../utils/ApiError'; import { ApiError } from "../utils/ApiError";
import { ITodo } from '../schemas/todoSchema'; import { ITodo } from "../schemas/todoSchema";
import { TodoModel } from '../models/todoModel'; import { TodoModel } from "../models/todoModel";
// import { Sqs } from '../aws/Sqs'; // import { Sqs } from '../aws/Sqs';
import { RabbitMQ } from '../rabbitmq/RabbitMQ'; import { RabbitMQ } from "../rabbitmq/RabbitMQ";
const env = require('dotenv').config().parsed; const env = require("dotenv").config().parsed;
export class TodoController { export class TodoController {
private todoModel: TodoModel; private todoModel: TodoModel;
@ -23,7 +23,7 @@ export class TodoController {
} }
return res.json(todos); return res.json(todos);
} };
public getOne = async (req: Request, res: Response, next: NextFunction) => { public getOne = async (req: Request, res: Response, next: NextFunction) => {
const todo: ITodo | ApiError = await this.todoModel.findOne(req.params.id); const todo: ITodo | ApiError = await this.todoModel.findOne(req.params.id);
@ -31,9 +31,13 @@ export class TodoController {
return next(todo); return next(todo);
} }
return res.json(todo); return res.json(todo);
} };
public createOne = async (req: Request, res: Response, next: NextFunction) => { public createOne = async (
req: Request,
res: Response,
next: NextFunction
) => {
try { try {
const todo: ITodo | ApiError = await this.todoModel.create(req.body); const todo: ITodo | ApiError = await this.todoModel.create(req.body);
if (todo instanceof ApiError) { if (todo instanceof ApiError) {
@ -43,31 +47,50 @@ export class TodoController {
return res.json(todo); return res.json(todo);
} catch { } catch {
const err = new ApiError('Internal server error', 500, 'Internal Server Error'); const err = new ApiError(
next(err) "Internal server error",
} 500,
"Internal Server Error"
);
next(err);
} }
};
public updateOne = async (req: Request, res: Response, next: NextFunction) => { public updateOne = async (
const todo: ITodo | ApiError = await this.todoModel.update(req.body, req.params.id); req: Request,
res: Response,
next: NextFunction
) => {
const todo: ITodo | ApiError = await this.todoModel.update(
req.body,
req.params.id
);
if (todo instanceof ApiError) { if (todo instanceof ApiError) {
return next(todo); return next(todo);
} }
return res.json(todo); return res.json(todo);
} };
public deleteOne = async (req: Request, res: Response, next: NextFunction) => { public deleteOne = async (
req: Request,
res: Response,
next: NextFunction
) => {
const { id } = req.params; const { id } = req.params;
const todo: boolean | ApiError = await this.todoModel.remove(id); const todo: boolean | ApiError = await this.todoModel.remove(id);
if (!todo) { if (!todo) {
const error = new ApiError('Todo not found', 404, 'Not Found'); const error = new ApiError("Todo not found", 404, "Not Found");
return next(error); return next(error);
} }
return res.json(todo); return res.json(todo);
} };
public removeAll = async (req: Request, res: Response, next: NextFunction) => { public removeAll = async (
req: Request,
res: Response,
next: NextFunction
) => {
const todos: boolean | ApiError = await this.todoModel.removeAll(); const todos: boolean | ApiError = await this.todoModel.removeAll();
return res.json(todos); return res.json(todos);
} };
} }

27
todo-service/src/main.ts
View file

@ -1,11 +1,10 @@
import express from 'express'; import express from "express";
import mongoose from 'mongoose'; import mongoose from "mongoose";
import todoRouter from './routes/todoRouter'; import todoRouter from "./routes/todoRouter";
import { ApiError } from './utils/ApiError'; import { ApiError } from "./utils/ApiError";
const env = require("dotenv").config().parsed;
const env = require('dotenv').config().parsed;
class TodoApp { class TodoApp {
app: express.Application; app: express.Application;
@ -22,10 +21,10 @@ class TodoApp {
} }
private setRoutes() { private setRoutes() {
this.app.use('/todo', todoRouter); this.app.use("/todo", todoRouter);
this.app.all('*', (req, res, next) => { this.app.all("*", (req, res, next) => {
const error = new ApiError('Are you lost?', 404, 'Not Found'); const error = new ApiError("Are you lost?", 404, "Not Found");
next(error) next(error);
}); });
} }
@ -44,12 +43,12 @@ class TodoApp {
mongoose.connect(env.DATABASE_URL); mongoose.connect(env.DATABASE_URL);
const db = mongoose.connection; const db = mongoose.connection;
// Check for DB connection // Check for DB connection
db.on('error', () => { db.on("error", () => {
console.error.bind(console, 'MongoDB connection error:') console.error.bind(console, "MongoDB connection error:");
process.exit(1); process.exit(1);
}); });
db.once('open', () => { db.once("open", () => {
console.log('Connected to MongoDB'); console.log("Connected to MongoDB");
}); });
} }
} }

44
todo-service/src/middleware/createTodoMiddleWare.ts
View file

@ -1,40 +1,52 @@
import { Request, Response, NextFunction } from 'express'; import { Request, Response, NextFunction } from "express";
import { ApiError } from '../utils/ApiError'; import { ApiError } from "../utils/ApiError";
import { DateTime } from 'luxon'; import { DateTime } from "luxon";
import moment from 'moment-timezone'; import moment from "moment-timezone";
const createTodoMiddleWare = async (req: Request, res: Response, next: NextFunction) => { const createTodoMiddleWare = async (
req: Request,
res: Response,
next: NextFunction
) => {
const { title, description, due_date } = req.body; const { title, description, due_date } = req.body;
if (!title || !due_date) { if (!title || !due_date) {
const error = new ApiError(`${!title ? 'title' : 'due_date'} is required`, 400, 'Bad Request'); const error = new ApiError(
`${!title ? "title" : "due_date"} is required`,
400,
"Bad Request"
);
return next(error); return next(error);
} }
try { try {
if (new Date(due_date) < new Date()) { if (new Date(due_date) < new Date()) {
const error = new ApiError(`due_date must be greater than current date`, 400, 'Bad Request'); const error = new ApiError(
`due_date must be greater than current date`,
400,
"Bad Request"
);
return next(error); return next(error);
} }
} catch { } catch {
const error = new ApiError(`due_date must be ISO `, 400, 'Bad Request'); const error = new ApiError(`due_date must be ISO `, 400, "Bad Request");
return next(error); return next(error);
} }
if (!description) { if (!description) {
req.body.description = ''; req.body.description = "";
} }
//check if date is valid, this is valid: 2023-07-08T14:00:00.000Z //check if date is valid, this is valid: 2023-07-08T14:00:00.000Z
const date = DateTime.fromISO(due_date); const date = DateTime.fromISO(due_date);
if (!date.isValid) { if (!date.isValid) {
const error = new ApiError(`due_date must be a valid date Format`, 400, 'Bad Request'); const error = new ApiError(
`due_date must be a valid date Format`,
400,
"Bad Request"
);
return next(error); return next(error);
} }
next(); next();
} };
export { export { createTodoMiddleWare };
createTodoMiddleWare
}

49
todo-service/src/models/todoModel.ts
View file

@ -1,47 +1,57 @@
import { Todo, ITodo } from '../schemas/todoSchema'; import { Todo, ITodo } from "../schemas/todoSchema";
import { ApiError } from '../utils/ApiError'; import { ApiError } from "../utils/ApiError";
interface Todo { interface Todo {
title: string, title: string;
description: string, description: string;
due_date: Date due_date: Date;
} }
export class TodoModel { export class TodoModel {
public findAll = async (): Promise<ITodo[]> => { public findAll = async (): Promise<ITodo[]> => {
const todos = await Todo.find(); const todos = await Todo.find();
return todos; return todos;
} };
public findOne = async (_id: string): Promise<ITodo | ApiError> => { public findOne = async (_id: string): Promise<ITodo | ApiError> => {
try { try {
const todo = await Todo.findById(_id); const todo = await Todo.findById(_id);
if (!todo) { if (!todo) {
const error = new ApiError('Todo not found', 404, 'Not Found'); const error = new ApiError("Todo not found", 404, "Not Found");
return error; return error;
} }
return todo; return todo;
} catch { } catch {
const error = new ApiError('Internal server error', 500, 'Internal Server Error'); const error = new ApiError(
"Internal server error",
500,
"Internal Server Error"
);
return error; return error;
} }
} };
public create = async (params: Todo): Promise<ITodo | ApiError> => { public create = async (params: Todo): Promise<ITodo | ApiError> => {
let todo = new Todo(params); let todo = new Todo(params);
todo = await todo.save(); todo = await todo.save();
if (!todo) { if (!todo) {
const error = new ApiError('Internal server error', 500, 'Internal Server Error'); const error = new ApiError(
"Internal server error",
500,
"Internal Server Error"
);
return error; return error;
} }
return todo; return todo;
} };
public update = async (params: Todo, _id: string): Promise<ITodo | ApiError> => { public update = async (
params: Todo,
_id: string
): Promise<ITodo | ApiError> => {
const todo = await Todo.findOne({ _id }); const todo = await Todo.findOne({ _id });
if (!todo) { if (!todo) {
const error = new ApiError('Todo not found', 404, 'Not Found'); const error = new ApiError("Todo not found", 404, "Not Found");
return error; return error;
} }
@ -51,16 +61,17 @@ export class TodoModel {
await todo.save(); await todo.save();
return todo; return todo;
} };
public remove = async (_id: string): Promise<boolean | ApiError> => { public remove = async (_id: string): Promise<boolean | ApiError> => {
const result = await Todo.deleteOne({ _id }); const result = await Todo.deleteOne({ _id });
return result.deletedCount > 0 ? true : new ApiError('Todo not found', 404, 'Not Found'); return result.deletedCount > 0
} ? true
: new ApiError("Todo not found", 404, "Not Found");
};
public removeAll = async (): Promise<boolean> => { public removeAll = async (): Promise<boolean> => {
await Todo.deleteMany({}); await Todo.deleteMany({});
return true; return true;
} };
} }

48
todo-service/src/rabbitmq/RabbitMQ.ts
View file

@ -1,7 +1,7 @@
import amqp, { Options, ConsumeMessage, Channel } from 'amqplib'; import amqp, { Options, ConsumeMessage, Channel } from "amqplib";
import { ITodo } from '../schemas/todoSchema'; import { ITodo } from "../schemas/todoSchema";
const env = require('dotenv').config().parsed; const env = require("dotenv").config().parsed;
export class RabbitMQ { export class RabbitMQ {
connection: amqp.Connection; connection: amqp.Connection;
@ -9,22 +9,23 @@ export class RabbitMQ {
queue: string; queue: string;
exchange: string; exchange: string;
constructor() { constructor() {
this.queue = env.RABBITMQ_QUEUE_NAME; this.queue = env.RABBITMQ_QUEUE_NAME;
this.exchange = 'delayed_exchange'; this.exchange = "delayed_exchange";
this.connect().then(() => { this.connect()
console.log('RabbitMQ connected'); .then(() => {
}).catch((error) => { console.log("RabbitMQ connected");
console.error('Error connecting to RabbitMQ:', error); })
.catch((error) => {
console.error("Error connecting to RabbitMQ:", error);
}); });
} }
async connect() { async connect() {
try { try {
this.connection = await amqp.connect({ this.connection = await amqp.connect({
protocol: 'amqp', protocol: "amqp",
hostname: env.RABBITMQ_HOST, hostname: env.RABBITMQ_HOST,
port: parseInt(env.RABBITMQ_PORT), port: parseInt(env.RABBITMQ_PORT),
username: env.RABBITMQ_USERNAME, username: env.RABBITMQ_USERNAME,
@ -33,38 +34,41 @@ export class RabbitMQ {
this.channel = await this.connection.createChannel(); this.channel = await this.connection.createChannel();
await this.channel.assertQueue(this.queue); await this.channel.assertQueue(this.queue);
await this.channel.assertExchange(this.exchange, 'x-delayed-message', { await this.channel.assertExchange(this.exchange, "x-delayed-message", {
durable: true, durable: true,
arguments: { arguments: {
'x-delayed-type': 'direct' "x-delayed-type": "direct",
} },
}); });
await this.channel.bindQueue(this.queue, this.exchange, this.queue); await this.channel.bindQueue(this.queue, this.exchange, this.queue);
console.log('Channel and queue asserted successfully #####'); console.log("Channel and queue asserted successfully #####");
} catch (error) { } catch (error) {
console.error('Error connecting to RabbitMQ:', error); console.error("Error connecting to RabbitMQ:", error);
throw error; throw error;
} }
} }
async create(payload: ITodo) { async create(payload: ITodo) {
const delayTimeForQueue = this.calculateDelayTimeForQueue(payload); const delayTimeForQueue = this.calculateDelayTimeForQueue(payload);
console.log("The Queue will be delayed for: ", delayTimeForQueue, " ms"); console.log("The Queue will be delayed for: ", delayTimeForQueue, " ms");
const message = JSON.stringify({ payload }); const message = JSON.stringify({ payload });
const options: Options.Publish = { headers: { 'x-delay': delayTimeForQueue } }; const options: Options.Publish = {
headers: { "x-delay": delayTimeForQueue },
};
try { try {
await this.channel.publish(this.exchange, this.queue, Buffer.from(message), await this.channel.publish(
this.exchange,
this.queue,
Buffer.from(message),
options options
) );
console.log(`Queue name is: ${this.queue}`) console.log(`Queue name is: ${this.queue}`);
} catch (error) { } catch (error) {
console.error('Error sending message to RabbitMQ:', error); console.error("Error sending message to RabbitMQ:", error);
throw error; throw error;
} }
} }
calculateDelayTimeForQueue(payload: ITodo) { calculateDelayTimeForQueue(payload: ITodo) {

24
todo-service/src/routes/todoRouter.ts
View file

@ -1,6 +1,6 @@
import { Router } from 'express'; import { Router } from "express";
import { TodoController } from '../controllers/todoController'; import { TodoController } from "../controllers/todoController";
import { createTodoMiddleWare } from '../middleware/createTodoMiddleWare'; import { createTodoMiddleWare } from "../middleware/createTodoMiddleWare";
class TodoRouter { class TodoRouter {
router: Router; router: Router;
@ -13,19 +13,21 @@ class TodoRouter {
} }
private setRoutes() { private setRoutes() {
this.router.get('/', this.todoController.getAll); this.router.get("/", this.todoController.getAll);
this.router.get('/:id', this.todoController.getOne); this.router.get("/:id", this.todoController.getOne);
this.router.post('/', createTodoMiddleWare, this.todoController.createOne); this.router.post("/", createTodoMiddleWare, this.todoController.createOne);
this.router.put('/:id', createTodoMiddleWare, this.todoController.updateOne); this.router.put(
this.router.delete('/:id', this.todoController.deleteOne); "/:id",
this.router.delete('/', this.todoController.removeAll) createTodoMiddleWare,
this.todoController.updateOne
);
this.router.delete("/:id", this.todoController.deleteOne);
this.router.delete("/", this.todoController.removeAll);
} }
public getRouter() { public getRouter() {
return this.router; return this.router;
} }
} }
export default new TodoRouter().getRouter(); export default new TodoRouter().getRouter();

8
todo-service/src/schemas/todoSchema.ts
View file

@ -1,4 +1,4 @@
import mongoose, { Schema, Document } from 'mongoose'; import mongoose, { Schema, Document } from "mongoose";
interface ITodo extends Document { interface ITodo extends Document {
title: string; title: string;
@ -11,13 +11,13 @@ interface ITodo extends Document {
const TodoSchema: Schema<ITodo> = new Schema({ const TodoSchema: Schema<ITodo> = new Schema({
title: { type: String, required: true }, title: { type: String, required: true },
description: { type: String, default: '' }, description: { type: String, default: "" },
due_date: { type: Date, required: true }, due_date: { type: Date, required: true },
createAt: { type: Date, default: Date.now }, createAt: { type: Date, default: Date.now },
updateAt: { type: Date, default: Date.now }, updateAt: { type: Date, default: Date.now },
status: { type: String, enum: ['pending', 'completed'], default: 'pending' }, status: { type: String, enum: ["pending", "completed"], default: "pending" },
}); });
const Todo = mongoose.model<ITodo>('Todo', TodoSchema, 'todos'); const Todo = mongoose.model<ITodo>("Todo", TodoSchema, "todos");
export { Todo, ITodo }; export { Todo, ITodo };

6
todo-service/src/utils/ApiError.ts
View file

@ -1,5 +1,9 @@
class ApiError extends Error { class ApiError extends Error {
constructor(message: string, private statusCode: number = 500,private status: string = 'Internal Server Error') { constructor(
message: string,
private statusCode: number = 500,
private status: string = "Internal Server Error"
) {
super(message); super(message);
} }
} }