Currency Exchange Micro Service - H2

Run com.in28minutes.microservices.currencyconversionservice.CurrencyConversionServiceApplicationH2 as a Java Application.

Resources

• http://localhost:8000/currency-exchange/from/USD/to/INR

{
  "id": 10001,
  "from": "USD",
  "to": "INR",
  "conversionMultiple": 65.00,
  "environmentInfo": "NA"
}

H2 Console

• http://localhost:8000/h2-console
• Use jdbc:h2:mem:testdb as JDBC URL

Notes

Tables Created

create table exchange_value 
(
	id bigint not null, 
	conversion_multiple decimal(19,2), 
	currency_from varchar(255), 
	currency_to varchar(255), 
	primary key (id)
)

Containerization

Troubleshooting

• Problem - Caused by: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: java.io.IOException: No such file or directory
• Solution - Check if docker is up and running!
• Problem - Error creating the Docker image on MacOS - java.io.IOException: Cannot run program “docker-credential-osxkeychain”: error=2, No such file or directory
• Solution - https://medium.com/@dakshika/error-creating-the-docker-image-on-macos-wso2-enterprise-integrator-tooling-dfb5b537b44e

Creating Container

• mvn package

Running Container

Basic

docker container run --publish 8000:8000 in28min/currency-exchange:0.0.1-SNAPSHOT