Price Alert System

1 Tech Stack

• Programming Language: Go Language
• Web Framework: Gin
• Database: PostgreSQL
• Cache Database: Redis
• Message Queue: RabbitMQ
• Container: Docker
• Document: Swagger
• Scheduler: Linux Cron
• Email Service: Mailgun (https://www.mailgun.com)
• Payment Service: Stripe (https://stripe.com)
• Stock Market Data Service: Alpha Vantage (https://www.alphavantage.co)
• Crypto Market Data Service: API-Ninjas (https://api-ninjas.com)
• Error Tracking: Sentry (https://sentry.io)

2 Program Build & Usage

## Init database (Make sure the postgreSQL is prepared)
cd Backend
go run ./migrate/migrate.go

## Generate Swagget Docs
go install github.com/swaggo/swag/cmd/swag@latest
$HOME/go/bin/swag init

## Running Backend
cd Backend
go build .
./Backend

## Running Scheduler
cd Scheduler
go build .
go build ./daily_status_update/daily_update.go

./scheduler.sh

3 ES256 JWT Signing Key Pair Generate

Generate the ECDSA key pairs with prime256v1 curve

openssl ecparam -name prime256v1 -genkey -noout -out private_key.pem
openssl ec -in private_key.pem -pubout -out public_key.pem

4 AES Key for Encryption Generate

head /dev/urandom | sha256sum