README

Overview

The Aligent DateTime API is a Magento 2 module that provides functionality to calculate the difference between two dates. It supports various calculation types and can be accessed via both REST API and GraphQL.

Features

• Calculate the difference between two dates in:
  • days: Calculate the total number of days
  • weekdays: Calculate the number of weekdays (Monday to Friday)
  • weeks: Calculate the number of complete weeks
  • hours: Calculate the total number of hours
  • minutes: Calculate the total number of minutes
  • seconds: Calculate the total number of seconds
  • years: Calculate the number of years
• Support for standard datetime formats with timezone
• REST API endpoint
• GraphQL query
• Unit test and API/GraphQL functional testing

Installation

1. If you already have Magento instance setup, skip to #6.
2. Create your project directory then go into it:

   mkdir magento.test; cd $_;
   

3. Download the Docker Compose template:

   curl -s https://raw.githubusercontent.com/markshust/docker-magento/master/lib/template | bash
   

4. Download the version of Magento you want to use with:

   bin/download 2.4.7 community
   

5. Run the setup installer for Magento:

   bin/setup magento.test
   

6. Install the module:

   bin/composer require gpnalin/module-date-time
   
   # or clone the module to app/code/Aligent/DateTime
   
   mkdir -p app/code/Aligent;
   cd $_;
   git clone git@github.com:gpnalin/module-date-time.git DateTime;
   

7. Enable the module by running:

   bin/magento module:enable Aligent_DateTime
   

8. Run the Magento setup upgrade:

   bin/magento setup:upgrade
   

9. Compile Dependency Injection:

   bin/magento setup:di:compile
   

10. Clean the cache:

bin/magento cache:clean

Usage

REST API

Endpoint

POST /V1/datetime/calculate

Parameters

• startDate (string): The start date in ISO 8601 format (e.g., "2023-01-01T00:00:00+00:00")
• endDate (string): The end date in ISO 8601 format (e.g., "2023-01-10T00:00:00+00:00")
• calculationType (string): The type of calculation to perform (days, weekdays, weeks, hours, minutes, seconds, years)

Example Request

POST /V1/datetime/calculate
Content-Type: application/json

{
  "startDate": "2023-01-01T00:00:00+00:00",
  "endDate": "2023-01-10T00:00:00+00:00",
  "calculationType": "days"
}

Example Response

{
    "result": 9
}

GraphQL

Query

query DiffCalculatorQuery(
  $startDate: String!,
  $endDate: String!,
  $calculationType: CalculationType!
) {
    DiffCalculatorQuery(
    startDate: $startDate,
    endDate: $endDate,
    calculationType: $calculationType
  ) {
    result
  }
}

Variables

{
  "startDate": "2023-01-01T00:00:00+00:00",
  "endDate": "2023-01-10T00:00:00+00:00",
  "calculationType": "days"
}

Example Response

{
  "data": {
    "DiffCalculatorQuery": {
      "result": 9
    }
  }
}

Error Handling

Both the REST API and GraphQL query will return appropriate error messages if the input is invalid or if an unexpected error occurs during calculation.

Notes

• All dates should be provided in standard datetime formats with timezone information.
• If no timezone is specified, UTC is assumed.
• The endDate must be greater than or equal to the startDate.

Test Coverage

• Unit Test

  /usr/local/bin/php -dmemory_limit=-1 $(pwd)/vendor/bin/phpunit --bootstrap $(pwd)/dev/tests/unit/framework/bootstrap.php --configuration $(pwd)/dev/tests/unit/phpunit.xml.dist $(pwd)/vendor/gpnalin/module-date-time/Test/Unit/
  

• Web API Functional Test

  /usr/local/bin/php -dmemory_limit=-1 $(pwd)/vendor/bin/phpunit -c $(pwd)/dev/tests/api-functional/phpunit_rest.xml.dist $(pwd)/vendor/gpnalin/module-date-time/Test/Api/
  

• GraphQL Functional Test

  /usr/local/bin/php -dmemory_limit=-1 $(pwd)/vendor/bin/phpunit -c $(pwd)/dev/tests/api-functional/phpunit_graphql.xml.dist $(pwd)/vendor/gpnalin/module-date-time/Test/GraphQl/