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A Spring Boot application that seamlessly integrates with the Gmail API for efficient email management and secure OAuth2 authentication.

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gmailApiClient

Explore the seamless integration of Gmail within a Spring Boot framework with this application, designed to offer secure and efficient email management. Harnessing OAuth2 for robust authentication, it provides a user-friendly platform to read, compose, and organize emails, making it an ideal solution for both personal and professional email interactions powered by Gmail's extensive capabilities.

Getting Started with the Gmail API

Setting Up Google Services

  1. Create a Project in Google Cloud Console:

    • Navigate to the Google Cloud Console.
    • Create a new project.
    • Note: Remember the Project ID as it will be used later.
  2. Enable the Gmail API:

    • In the Google Cloud Console, navigate to "APIs & Services" > "Dashboard."
    • Click "+ ENABLE APIS AND SERVICES" and search for "Gmail API."
    • Enable the Gmail API for your project.
  3. Create Credentials:

    • Go to "APIs & Services" > "Credentials."
    • Click "Create Credentials" and select "OAuth client ID."
    • Set up the OAuth consent screen if prompted.
    • Choose "Web application" as the Application type.
    • Add the necessary redirect URIs (e.g., http://localhost:8080/login/oauth2/code/google for local testing).
    • Note: Keep the Client ID and Client Secret secure.

Configuring Application Credentials

To integrate the Gmail API with your Spring Boot application, you need to configure your Google credentials in the application.yaml file. This allows your application to authenticate with Google services securely.

  1. Locate or Create Your application.yaml:

    • Find the application.yaml file in your Spring Boot project's src/main/resources directory.
    • If the file doesn't exist, create it in the aforementioned directory.
  2. Add Google Credentials:

    • Open application.yaml and add the following lines, replacing YOUR_CLIENT_ID and YOUR_CLIENT_SECRET with your actual Google OAuth 2.0 credentials:
    google:
      client-id: YOUR_CLIENT_ID
      client-secret: YOUR_CLIENT_SECRET
  3. Referencing Credentials in the Application:

    • In your Spring Boot application, reference these credentials using the @Value annotation or through configuration properties binding.
    • Example for using @Value:
    @Value("${google.client-id}")
    private String googleClientId;
    
    @Value("${google.client-secret}")
    private String googleClientSecret;
  4. Securing the Credentials:

    • Important: Do not commit the application.yaml file with real credentials to public repositories. Consider using environment variables or external configuration management for sensitive data.

Setting Up Spring Boot Application

  1. Initialize a Spring Boot Project:

    • Use Spring Initializr to bootstrap a new Spring Boot project.
    • Choose the necessary dependencies (e.g., Spring Web etc) and add it to build.gradle file.
  2. Clone/Download the Project:

    • git clone
    • Or download the ZIP file and extract it.
  3. Open and Run the Project:

    • Open the project in your preferred IDE.
    • Run the application (usually by running the main method in the YourApplication.java file).

Tech Stack

This project utilizes the following technologies:

  • Gmail API & Service
  • Google API
  • Spring Boot
  • OAuth2

What I Learned

During the development of this project, I gained experience in:

  • Integrating Gmail API with a Spring Boot application.
  • Managing OAuth2 authentication and authorization flow.
  • Application development using Spring Boot.

Future Enhancements

Here are some ideas for future enhancements and features for the project:

Feature Description
Advanced Email Filtering Implement more complex email filtering.
Email Scheduling Add functionality to schedule emails.
UI Improvements Enhance the user interface for ease of use.
Integration with Other APIs Integrate with other Google APIs for extended functionality.
Automated Testing Suite Develop a comprehensive testing suite.

Your contributions and suggestions are welcome!

Contributing

Contributions to this project are welcome! Here's how you can contribute:

  1. Fork the Repository: Click the 'Fork' button at the top-right corner of this page.
  2. Clone Your Fork: git clone https://github.com/your-username/project-name.git
  3. Create a New Branch: git checkout -b your-new-feature
  4. Make Changes and Commit: Make your changes and commit them with a clear commit message.
  5. Push to Your Fork: git push origin your-new-feature
  6. Create a Pull Request: Open a new pull request from your fork to the main project.

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A Spring Boot application that seamlessly integrates with the Gmail API for efficient email management and secure OAuth2 authentication.

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