Build a java spring boot CLI tool to import data from google spread sheet to graphql backend with validation

This project involves writing a Java Spring Boot 2.0 command line tool in Java for importing data (~25 - 1000 rows) and 5-8 columns from Google spreadsheets to a GraphQL server. Validation of the data in the spreadsheet is to be performed before importing the data into GraphQL server. All configuration properties for the tool will be external (validation rules, GraphQL endpoint etc) Git repo access with Gradle build file will be provided for development as well as Sample data. A very detailed requirements document for this project is available and will be shared to potential developers.