BiteSpeed Task

Overview

This project is a contact identification and linkage service built using Java and Spring Boot. It uses PostgreSQL as the database and is hosted on Render.com. The service exposes a single API endpoint to identify and link contacts based on phone numbers and emails.

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Tech Stack

• Backend: Java, Spring Boot
• Database: PostgreSQL
• Hosting: Render.com
• API Endpoint: https://bitespeed-task-i267.onrender.com/identify

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Database Schema

The project uses a single table named Contact with the following structure:

• id: Unique identifier for each contact.
• phoneNumber: The contact’s phone number.
• email: The contact’s email address.
• linkedId: Reference to another contact’s id if this contact is linked to a primary contact.
• linkPrecedence: Indicates whether the contact is a primary or secondary record.
• createdAt & updatedAt: Timestamps for record creation and last update.
• deletedAt: Timestamp for soft deletion (nullable).

The implementation passes all provided test cases and follows the problem statement closely.

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