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@cocalc/database

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CoCalc: code for working with our PostgreSQL database

github.com/sagemathinc/cocalc

sagemathinc/cocalc

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# @cocalc/database This package connects the hub and nextjs servers to the PostgreSQL database, and implements some nontrivial functionality to support these servers. In particular: - It implements changefeeds and user queries, which provides a pure JSON language similar to the basics of GraphQL for setting, getting, and subscribing to data in the database. This uses PostgreSQL LISTEN/NOTIFY to send push notifications about changes to tables. It's specifically designed for our data structures, of course, and is not generic. The data structures are currently defined in `@cocalc/util/db-schema`. ## Notes **WARNING**: This is the single scariest chunk of CoffeeScript left in CoCalc! **Temporary Warning:** There is a circular dependency between this package and @cocalc/server right now. That's necessary while we rewrite the coffeescript code. What happened was that these files `postgres-*.coffee` ended up implementing hundreds amount of "server functions" that have nothing to do with basic database functionality. They need to be rewritten in lots of small typescript files, mostly in `@cocalc/server`.