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toucan - A classy high-level Clojure library for defining application models and retrieving them from a DB

  •    Clojure

Toucan provides the better parts of an ORM for Clojure, like simple DB queries, flexible custom behavior when inserting or retrieving objects, and easy hydration of related objects, all in a powerful and classy way.Toucan builds on top of clojure.java.jdbc and the excellent HoneySQL. The code that inspired this library was originally written to bring some of the sorely missed conveniences of Korma to HoneySQL when we transitioned from the former to the latter at Metabase. Over the last few years, I've continued to build upon and refine the interface of Toucan, making it simpler, more powerful, and more flexible, all while maintaining the function-based approach of HoneySQL.

analytics-with-kafka-redshift-metabase - An example system that captures a large stream of product usage data, or events, and provides both real-time data visualization and SQL-based data analytics

  •    Javascript

This is an example of a system that captures a large stream of product usage data, or events, and provides both real-time data visualization and SQL-based data analytics. The stream of events is captured by Apache Kafka and made available to other downstream consumers. In this example, there are two downstream consumers of the data. The data flowing through Kafka can be viewed in near real-time using a web-based data visualization app. The other consumer stores all the data in AWS Redshift, a relational database that Amazon describes as "a fast, scalable data warehouse." Then we can query and visualize the data in Redshift from a SQL-compliant analytics tool. This example uses Metabase deployed to Heroku. Metabase is an open-source analytics tool used by many organizations, large and small. This entire system can be deployed in 15 minutes -- most of that time spent waiting for Heroku and AWS to provision services -- and it requires very little ongoing operational maintenance.








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