riyan10dec / tax-calc

Tax Calculator

Tax-Calc

This API implemented using GraphQL and Pure Go.

Depedencies

Docker 🐳 & docker-compose.

Developing

run locally run using docker-compose:

sudo docker-compose up

the app runs on localhost:8080

GraphQL Mutation

This project is developed using GraphQL on localhost:8080/query.

For ease-of-use, I recommend using Insomnia (https://insomnia.rest/), then select GraphQL Query on Body Type.

Here are two Mutation for Store Tax and Calculate Tax:

mutation{
  inputProduct(product: {
    taxCode: 2,
    name: "Test 2",
    price: 2000
  }) {
    id
    name
    price
    taxCode
  }
}

mutation{
  calculateTax(productIDs: [1,2]){
    products{
      id
      name
      price
      taxCode
      refundable
      taxPrice
      productType
      total
    }
    priceSubTotal
    taxSubTotal
    grandTotal
  }
}

Database Structure

I use 2 table on this project:

1. Product

   a. ID (PK, int, autogenerated)

   b. Name (varchar)

   c. Price (decimal)

   d. TaxID (int, FK)

2. Tax

   a. ID (PK, int, autogenerated)

   b. Code (int)