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Installation Guide
Link Cosmos DB integration
The purpose of this document is to guide on integrating your web application with Azure Cosmos DB for MongoDB. By following the steps outlined herein, you will seamlessly incorporate Cosmos DB into your application's data storage and retrieval processes.
Integration overview
The Link Cosmos DB Integration is a strategic enhancement for web applications utilizing Azure Cosmos DB for MongoDB in conjunction with existing MongoDB setups. This integration seamlessly integrates Cosmos DB, offering a systematic approach to data storage and retrieval processes within your web application.

Installation Guide
- Introduction to Unica Link
  Unica Link is a component that can be installed separately from the Unica application.
- Unica Link prerequisites
  Ensure that these prerequisites are met before installing Unica Link.
- Microsoft Windows installation
  This section describes how to install Link using the Windows Installer.
- Linux Installation
  You can install Unica Link in two modes:
- Setting up Journey and Campaign for Unica Link
- Link Cosmos DB integration
  The purpose of this document is to guide on integrating your web application with Azure Cosmos DB for MongoDB. By following the steps outlined herein, you will seamlessly incorporate Cosmos DB into your application's data storage and retrieval processes.
  - Audience and prerequisites
    This document is designed to serve various audiences of professionals involved in the integration and management of a web application utilizing Azure Cosmos DB for MongoDB along with existing MongoDB in Link.
  - Integration overview
    The Link Cosmos DB Integration is a strategic enhancement for web applications utilizing Azure Cosmos DB for MongoDB in conjunction with existing MongoDB setups. This integration seamlessly integrates Cosmos DB, offering a systematic approach to data storage and retrieval processes within your web application.
  - Key features
    The following are the key features:
  - Compatibility
    The Link Cosmos DB Integration is designed to work seamlessly within various system and platform environments, ensuring broad compatibility and flexibility in deployment.
  - Configuration details
    The following are the configuration details for successfully configuring the Link Cosmos DB Integration:
  - Integrating Cosmos DB with MongoDB
    By following these steps, you can successfully integrate Cosmos DB with MongoDB:
  - Known Issues while using Cosmos DB
    Refer to the following known issues while using Cosmos DB:
- Logging
  Logs are produced for your use by Link, the Runtime REST API, and Kafkalink.
- Enabling Unica Link to run on HTTP protocol for Windows and Linux Installation
- Encrypting the password in the properties file
  To enhance security and safeguard sensitive information, encrypt the password stored in the properties file adding a layer of protection to the data.
- Verifying the config.yaml file
  This section describes how to verify the validity of your config.yaml file after making changes in it. When editing the config.yaml file, ensure that the modifications you make are valid. To verify the validity of your config.yaml file after making changes, perform one of the following procedures based on your setup:
- Configuring SSL Certificates for Link
  After installing Link, setup the custom SSL certificates for the Link web UI and the Link runtime application server.
- Troubleshooting
- Known issues
  Summary of known issues in this version of the product.

Integration overview

The Link Cosmos DB Integration is a strategic enhancement for web applications utilizing Azure Cosmos DB for MongoDB in conjunction with existing MongoDB setups. This integration seamlessly integrates Cosmos DB, offering a systematic approach to data storage and retrieval processes within your web application.

By enabling the coexistence of MongoDB and Cosmos DB, this integration ensures flexibility and scalability in managing diverse data requirements. The following are the benefits:


Flexibility in Database Selection	The integration provides the flexibility to choose between MongoDB and Cosmos DB, allowing developers to leverage the strengths of each database for specific use cases without major code modifications.
Seamless Transition	With changes made in the config.yaml file, transitioning between MongoDB and Cosmos DB is a straightforward process. This ensures minimal disruption to existing workflows during database configuration changes.
Enhanced Query Performance	Optimizations in index configurations and parameter adjustments contribute to improved query performance, ensuring that data retrieval processes are efficient, regardless of the underlying database technology.
Compatibility Assurance	The integration undergoes meticulous unit and integration testing, ensuring that existing functionalities within Link remain consistent across MongoDB and Cosmos DB. This compatibility assurance minimizes the risk of unforeseen issues during and after the integration process.
Scalability and Future-Readiness	Link CosmosDB Integration is designed to scale with the evolving needs of your web application. Whether accommodating growing data volumes or adapting to changes in database technology, this integration provides a robust foundation for future growth.

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