This API is based on the conversion charts found in Google. If any mistake in conversion it can be easily rectified

API URL structure: http://localhost:8080/convert/UNITTYPE?fromUnit=&toUnit=&valueToConvert=

Here UNITTYPE must be replaced by the type of conversion you need. UNITTYPE -> length | temperature | weight | area

For LENGTH: m | Meters km | Kilometers cm | Centimeters mm | Millimeters mi | Miles yd | Yards ft | feet in | Inches

For TEMPERATURE: c | Celsius f | Fahrenheit

For WEIGHT: mg | milligram grain | grain g | grams oz | Ounces lb | Pounds kg | kilograms tons | Tons t | tonnes

For AREA: cm2 | sq.cm m2 | sq.m ha | hectare km2 | sq.km in2 | sq.inch ft2 | sq.foot yd2 | sq.yd acre | acres mile2 | sq.mile

1. Build and run the app using maven

mvn package
java -jar target/metricconverter-0.0.1-SNAPSHOT.jar

Alternatively, you can run the app without packaging it using -

mvn spring-boot:run

The app will start running at at port 8080 (Embedded Tomcat Server).

2. PostMan Collection

Included Postman collection METRIC_CONVERTER_API.postman_collection.json can be imported into Postman for testing purposes

3. Unit Test Cases and Integration Test Cases

Unit Test Cases -> JUnit5 with Mockito
Integration Test Cases -> Spring Boot Test instance to trigger the endpoints

4. Exception Handling

Single Exception Handler class using @RestControllerAdvice

5. Dockerfile

-> Multi-layer approach
First stage:  Extracts the dependencies
Second stage: Copies the extracted dependencies to the final image