eugeniosales / coin-converter

Exchange Rate Converter POC

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• 🔭 I am a Software Engineer with 5 years of professional experience
• 🖥️ I have been mainly focused on AWS, Javascript and DevOps
• ☁️ I am a big fan of Cloud Computing and that is the field I have been specializing in
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coin-converter's Issues

[BE] Add Docs

Acceptance criteria:

• Add solution architeture
• Add Architectural Decision Record (ADR)
• Add Products API Doc

[FE] Create products page

Description:

Create page to provide product currency update by exchange rate api visualization.

Acceptance criteria:

• Create page with the image test properties
• Add option to switch between currencies

[BE] Create microservice to provide current exchange rate info

Description:

Create job to provide current exchange rate info from the ExchangeRate table in DynamoDB.

Acceptance criteria:

• Add lambda getExchangeRate of ExchangeRate domain
• Add unit test to business and adapters layer
• Create private subnets in two availability zones
• Create Application Load Balancer and attach to private subnets
• Attach lambda to private subnets

[BE] Create Circuit Breaker for External API unavailability handling

Description:

Add circuit breaker pattern to updateExchangeRate microservice (#3) for handling Exchange Rates External API unavailbility in job.

Acceptance criteria:

• Create a table CircuitBreaker in DynamoDB to controll state over microsservice calls
• The Circuit Breaker must contain 2 states: open and closed.
• Add Circuit Breaker to updateExchangeRate microsservice
• Mock "New Relic" event to monitor Circuit Breaker state regarding observability issues

[BE] Create job to save exchange rates from external API

Description:

Create job to get every single minute the exchange rates with BRL Base from exchangeRates API and save data in ExchangeRate table in DynamoDB.

Exchange Rates External API: https://exchangeratesapi.io/documentation/

Acceptance criteria:

• Add rule update-exchange-rate-rule no EventBridge para agendamento de evento por minuto
• Add SQS update-exchange-rate-queue to receive events from rule
• Add lambda UpdateExchangeRate of ExchangeRate domain triggered by SQS
• Create ExchangeRate table in DynamoDB
• Add unit test to business and adapters layer

[BE] Add initial project setup

Acceptance criteria:

• Add project base
• Add clean archicteture structure
• Add Jest to unit tests
• Add tslint
• Add serverless framework to deploy lambdas
• Add terraform to create resources
• Configure Github Actions for CI
• Configure Github Actions for Terraform CD

[BE] Create microservice to load produtcts

Description:

Create microsservice to load produtcts from the Products table in DynamoDB. Also, the microsservice needs to make an asynchrounous call to getExchangeRate microservice to display the currency accordingly.

Acceptance criteria:

• Create Product table in DynamoDB
• Add lambda getProducts of Product domain
• Add unit test to business and adapters layer
• Crate Api Gateway and attach to getProducts lambda
• Attach lambda to default VPC and private subnets
• Create public subnet and Internet Gateway to provide internet access
• Create NAT Gateway to public subnet
• Create a route table to private subnets routing to NAT Gateway
• Create a route table to public subnet routing InternetGateway