Fennel

GraphQL Client

• Statically validated queries
• Can query both local and remote schemas
• Extensions (TODO)
• Caching (TODO)

Under the hood it’s using Absinthe, it’s used for SDL parsing, valdations and configuring schema.

demo

TODO

• [ ] TODO: Use https://hexdocs.pm/elixir/1.3.3/Inspect.Algebra.html to gen query
• [ ] TODO: add fetch policies - cache-only, cache-first(default), network-only (see Apollo)
• [ ] TODO: warn/error when deprecated fields are used -> Custom builder Phase
• [ ] TODO: support multiple operations inside one query
• [ ] TODO: Optimistic update
• [ ] TODO: Emit events when cache was updated. LiveView needs to know when to refetch data
• [ ] TODO: Disable broadcast about updated cache via Process dict, example: Phoenix Controller
• [ ] TODO: persisted queries
• [ ] TODO: Cast result strings to ATOMs (safely!)
• [ ] TODO: Handle websocket subsription connection issues?
• [ ] TODO: Adapter support for http

Inspiration

• https://github.com/github/graphql-client/blob/master/guides/handling-errors.md
• https://github.com/graphql-rust/graphql-client
• https://formidable.com/open-source/urql/docs/architecture/22