apollo-tooling VS federation

Apollo is deprecating their tooling, best to go with GraphQL Code Generator.

Alternatively, you can use Apollo GraphQL or any dependency of your choice to make API request.

When you talk about GraphQL, one simply cannot forget GraphQL Tools irrespective of the architecture or stack you use. Initially developed by Apollo and then taken over by The Guild, GraphQL Tools provides you a very powerful set of utility functions to work with GraphQL which you can use in your services irrespective of whethere you are using something like Apollo Federation or Schema Stitching.

The Apollo CLI when combined with Federation does come with a lot of helpers to take care of things like pushing the schema, listing the services in the studio, doing codegen and so on though I am not currently sure why they are rewriting it again to Rust apart from the reasons as suggested here.

ApolloGraphql: https://apollographql.com

The tech stack I used for this site was: Prisma w/ GraphQL-Yoga / Apollo & GraphQL / Express / NextJS / MongoDB

This is great, thanks. I'm wondering if you still need to explicitly reference types, such as with Apollo's codegen where you would do something like useQuery or is it fully automatic like in the gif in the article?

https://github.com/apollographql/apollo-tooling#apollo-clientcodegen-output

I feel like we ran into this recently at work but not with custom scalars etc. My colleague raised an issue for it. Hope this helps in some way.

as per the Github issue here. However I have trouble understanding this statement. Why can't the gateway pick and choose which input fields are routed to each subgraph? Isn't it the responsibility of the supergraph SDL and the gateway to do exactly this, this same way it does for entities? What limitations are there that make merging input types using the union strategy not viable?

Federation comes with its own specification and directives as part of it which helps people to define all of the relations between multiple GraphQL entities so that the Apollo Gateway can combine them all together without having to modify the GraphQL gateway and also functions like __resolveReference which helps in resolving an entity with its reference as specified by the directives.