/software-engineering-calculator

Primary LanguageKotlinApache License 2.0Apache-2.0

The Calculator

How to run backend

Specify how to connect to the postgres DB via command line arguments. (e.g. -db localhost:5432/se-calculator -u se-calculator-user) Use -db test to enable in-memory H2 DB instance as a stand-in.

Backend API

  • /calculate Expects a JSON payload of the following form:

      {"expression": "1+1"}

    Responds with result on success or an error:

      {"result": 2.0}
      {"message": "aboba"}

    Sample request: curl 0.0.0.0:8080/calculate -d '{"expression":"1+1"}' -H "Content-Type: application/json" -v

  • /history Optional query parameters:

    • limit=integer from 1 to 100

    Response format:

    {"history":[{"stringExpression":"1+1","result":2.0}]}

    Sample request: curl 0.0.0.0:8080/history -v

Useful links

For those who always forget how to create new local postgres db