simplest-api

This is the simplest API I can build with my current knowledge (March 2019) using Java over Spring Framework.

Running

Clone or download it and:

./mvnw spring-boot:run

Using it

You should access or call http://localhost:8080/calc. You must append the following to make operations:

• A mandatory parameter a
• A mandatory parameter b
• A optional parameter operation with one of the following values:
  • sum (default)
  • subtract
  • divide
  • multiply

For example, if you GET or POST http://localhost:8080/calc with parameters a, b and operation you'll get the following result:

HTTP/1.1 200 
Content-Type: application/json;charset=UTF-8
Date: Sat, 09 Mar 2019 14:12:47 GMT
Transfer-Encoding: chunked

{
  "a": 5,
  "operation": "subtract",
  "b": 15,
  "result": -10
}

In your browser you can access http://localhost:8080/calc?a=5&b=15&operation=subtract and you'll get the response above.

Testing

You can use test.sh to test. I keep a watch -n 5 ./test.sh running on the terminal, which I quickly change to ./test.sh <argument 1> <argument 2> to test specific values for the supported operations.

The script uses HTTPie.