[hansonkd13]

I would say -> GraphqL + Phoenix + Postgres

From my perspective I wouldn’t choose CouchDB. For one, its a pretty obscure DB that doesn’t have a lot of support. For example almost all major hosting providers now allow you to launch an app with Postgres hosting out of the box.

Way way way way more tools and articles for building an app with postgres.

Also I would recommend Postgres to take full advantage of Phoenix and Ecto (the ORM). In Elixir GraphQL and Ecto are deeply integrated to avoid n+1 queries when you are writing nested lookups.

In my opinion having used Django, RoR, frameworks in Go and Rust, Elixir has the most robust and powerful ORM out of any language and it would be a shame to miss out on it by using CouchDB.

I prefer GraphQL over REST tremendously. For a large site, in REST we had this process of the Frontend would have to tell the backend what data they wanted, the backend would make the endpoint and then the frontend would consume it.

With Graphql the backend just defined all available data and the frontend picks and chooses what it needs. GrqphQL also prevents weird n+1 requests where you need to request the data of the children from a previous REST result.

GraphqL + Phoenix + Postgres is a game changer IMO