Create app

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Open API Spec:

openapi: 3.0.3
info:
  title: Basic Calculator API
  version: 1.0.0
  description: A simple calculator API that provides endpoints for basic arithmetic operations.
servers:
  - url: http://localhost:8080
    description: Local server

paths:
  /add:
    get:
      summary: Add two numbers
      description: Returns the sum of two numbers.
      parameters:
        - name: num1
          in: query
          required: true
          description: The first number to add
          schema:
            type: number
        - name: num2
          in: query
          required: true
          description: The second number to add
          schema:
            type: number
      responses:
        '200':
          description: The result of the addition
          content:
            application/json:
              schema:
                type: object
                properties:
                  result:
                    type: number
                    description: The sum of the two numbers

  /subtract:
    get:
      summary: Subtract two numbers
      description: Returns the result of subtracting the second number from the first number.
      parameters:
        - name: num1
          in: query
          required: true
          description: The number to subtract from
          schema:
            type: number
        - name: num2
          in: query
          required: true
          description: The number to subtract
          schema:
            type: number
      responses:
        '200':
          description: The result of the subtraction
          content:
            application/json:
              schema:
                type: object
                properties:
                  result:
                    type: number
                    description: The result of the subtraction

  /multiply:
    get:
      summary: Multiply two numbers
      description: Returns the product of two numbers.
      parameters:
        - name: num1
          in: query
          required: true
          description: The first number to multiply
          schema:
            type: number
        - name: num2
          in: query
          required: true
          description: The second number to multiply
          schema:
            type: number
      responses:
        '200':
          description: The result of the multiplication
          content:
            application/json:
              schema:
                type: object
                properties:
                  result:
                    type: number
                    description: The product of the two numbers

  /divide:
    get:
      summary: Divide two numbers
      description: Returns the result of dividing the first number by the second number.
      parameters:
        - name: num1
          in: query
          required: true
          description: The number to be divided
          schema:
            type: number
        - name: num2
          in: query
          required: true
          description: The number to divide by
          schema:
            type: number
      responses:
        '200':
          description: The result of the division
          content:
            application/json:
              schema:
                type: object
                properties:
                  result:
                    type: number
                    description: The result of the division
        '400':
          description: Bad request, for example, division by zero
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                    description: Error message

components:
  schemas:
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
          description: Error message