A common language across front and backend systems is a huge benefit. I find it extremely productive to have a backend in Typescript on NodeJS, and a frontend in ReactJS, talking over a GraphQL layer where I'm autogenerating Typescript types from the GraphQL typedefs. Means I can share many libraries and tooling across the front and back ends, but most importantly it means devs feel much more comfortable digging into code on the other side. If a front end dev has an issue with a backend API call, he can just pull down the code and instantly inspect it and submit a PR of necessary without feeling "out of his element".
How you generate the types from graphql. I noticed most of the generators create types with all optional keys. Do basically you need to check all the time...
If they're creating types with optional keys it's probably because that's how you're defining your types in GraphQL. E.g. with
type Foo {
bar: String
}
bar would be optional in the Typescript type because it's specified as optional in the GraphQL type. You would need to do the following to make it required:
