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1. Building realtime application with D... Building realtime application with DynamoDB (and potentially any database with an operation log)

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   Building realtime applications is hard.

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   > A scalable solution to this problem involves many cumbersome steps:

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   - Hooking into replication logs of the database servers, or writing custom data invalidating logic for realtime UI components.

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   - Adding messaging infrastructure (e.g. RabbitMQ) to your project.

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   - Writing sophisticated routing logic to avoid broadcasting every message to every web server.