BTC Pricing Application

This is a Spring Boot application that updates and retrieves the current BTC price using Redis and MongoDB.

Features

Update BTC price every 5 seconds.
Store the latest BTC price in Redis.
Persist the BTC price in MongoDB every minute.
Retrieve the current BTC price from Redis or MongoDB.

Prerequisites

Java 11 or higher
MongoDB
Redis

Project Structure

.
├── .gradle
├── .idea
├── build
├── gradle
├── src
│   └── main
│       └── java
│           └── io
│               └── csie
│                   └── chris
│                       └── demo
│                           ├── common
│                           │   ├── Constants.java
│                           │   └── TransactionType.java
│                           ├── config
│                           │   ├── MongoConfig.java
│                           │   ├── RedisConfig.java
│                           │   └── SwaggerConfig.java
│                           ├── controller
│                           │   ├── BtcPriceController.java
│                           │   ├── HealthCheckController.java
│                           │   ├── TransactionController.java
│                           │   └── UserController.java
│                           ├── dto
│                           │   ├── BtcPriceModel.java
│                           │   ├── TransactionModel.java
│                           │   └── UserModel.java
│                           ├── entity
│                           │   ├── BtcPrice.java
│                           │   ├── Transaction.java
│                           │   └── User.java
│                           ├── exception
│                           │   ├── GlobalExceptionHandler.java
│                           │   ├── InsufficientBalanceException.java
│                           │   ├── InsufficientBtcBalanceException.java
│                           │   └── UserNotFoundException.java
│                           ├── filter
│                           │   └── RateLimitingFilter.java
│                           ├── repository
│                           │   ├── BtcPriceRepository.java
│                           │   ├── TransactionRepository.java
│                           │   └── UserRepository.java
│                           ├── response
│                           │   └── ApiResponse.java
│                           ├── scheduler
│                           │   └── BtcPriceScheduler.java
│                           ├── serializer
│                           │   └── ObjectIdSerializer.java
│                           ├── service
│                           │   ├── BtcPriceService.java
│                           │   ├── TransactionService.java
│                           │   └── UserService.java
│                           └── BtcPricingApplication.java
│       ├── resources
│       │   ├── static
│       │   ├── templates
│       │   └── application.properties
│   └── test
│       └── java
│           └── io
│               └── csie
│                   └── chris
│                       └── demo
│                           ├── scheduler
│                           │   └── BtcPriceSchedulerTest.java
│                           ├── serializer
│                           │   └── ObjectIdSerializerTest.java
│                           └── service
│                               ├── TransactionServiceTest.java
│                               └── UserServiceTest.java
├── build.gradle
├── gradle.properties
└── README.md

Getting Started

Add MongoDB URI

Before running the application, you need to configure the MongoDB URI in the application.properties file located in src/main/resources.

spring.data.mongodb.uri=mongodb+srv://<username>:<password>@cluster0.mongodb.net/<database>?retryWrites=true&w=majority

Add Redis URI

Before running the application, you need to configure the MongoDB URI in the application.properties file located in src/main/resources.

spring.data.redis.host=????
spring.data.redis.port=6379
spring.data.redis.password=????

Running

./gradlew build
./gradlew bootRun

Testing

./gradlew test

Swagger Integration

The application uses Swagger for API documentation. You can access the Swagger UI at http://localhost:8080/swagger-ui.html once the application is running.

http://localhost:8080/swagger-ui/index.html

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