better-sqlite3 VS Koa

In the second video of the series, we are separating routers and adding SQLite, Better SQLite 3, Database to the application to show access to context for performing a simple query and mutation.

If I were charged with this task I'd probably take an actual SQLite DB and write methods to parse data from text files, then process it within SQLite, and serialize it back to the text file when an API method is called or after each processing step. A fresh DB engine, fully re-implemented to match SQLite's API is insane unless you're a prodigy or have a sizable team and will come with numerous downsides. I can recommend https://github.com/WiseLibs/better-sqlite3 and https://github.com/loveencounterflow/dbay

better-sqlite3 is orders of magnitude faster than the async SQLite bindings. We found this to be true when testing SQLite options for Notion's desktop app anyways.

https://github.com/WiseLibs/better-sqlite3#why-should-i-use-...

Better SQLite is a wrapper around the SQLite database engine that provides a number of improvements over the standard SQLite API. One of those benefits is type safety, Better SQLite uses TypeScript to provide type safety for queries, which can help to prevent errors.

better-sqlite3 does the job synchronously

I used better-sqlite3 . It is simple to use as it is synchronous. I don't know if it scales good (at least the docs say it) but works great for my small use cases.

Kent's recommended NodeJS module, `better-sqlite3`, has some very nifty features including the creation of JavaScript user-defined functions[0] that (if I understand this right) can be called from SQLite. Combined with TRIGGERs, I wonder if it might fire a function within the app when an UPDATE/INSERT happens from a different process? (This is me wondering out loud, I don't actually know.)

I also recommend checking out Replicache[1] and alternatives, which may be a better way to handle the networking and database replication so that it doesn't rely on the underlying DB.

[0] https://github.com/WiseLibs/better-sqlite3/blob/HEAD/docs/ap...

Since "Express.js is an old framework that has not evolved for a long time. It's not a good choice for new projects since it can easily lead to security issues and memory leaks." -- H3. Which is also the case for Koa.

In this example, we're using the serverless framework to quickly set up the Lambda function along with an API gateway for the entry point. The lambda function is a simple Koa REST API with a few functional endpoints.

The initial step is to create our entry point, from where the page will be rendered. In this case, we will use the koa framework.

Koa.js: By the team behind Express, Koa.js utilized async/await for middleware, resulting in cleaner and more readable code.

Koa

Koa.js: https://koajs.com/

Koa -Next Generation Node Microservice Framework

Backend is more tricky. - RESTful APIs I prefer Koajs - For a RPC/microsevice, I have only used gRPC - For a CLI, yargs and inquirer

There are lot of different frameworks out there. If you learn one, there is no guarantee that the next job you find will use the same. For example if you learn Express and the next one used Koa or Nest.

Koa.js is a minimal and flexible Node.js web application infrastruc­ture, which provides a robust set of features for web and mobile applica­tions. It is an open-source framework developed and maintained by the creators of Express.js, the most popular web framework for Node.js.