GraphQLiin

GraphQLiin is a hypothetical query language and runtime concept proposed as an extension of GraphQL. It envisions integrating inlining of data-fetching logic with the ability to stream results incrementally, aiming to reduce round trips and improve performance for nested data requests. As a concept, GraphQLiin does not represent an official standard, but is discussed in academic papers and prototype experiments as a means to explore how inlining and streaming could interact with GraphQL-like schemas.

In GraphQLiin, the core idea is to keep the strong typing and declarative query shape of GraphQL while introducing explicit hints and directives that guide how resolvers are arranged and executed. The type system remains similar, with object types, fields, and scalar types, but to address performance, the runtime uses an execution planner to inline resolvers and overlap data fetching where possible. A streaming engine can emit partial results for portions of the query as soon as data is ready, with mechanisms for error handling and result reassembly.

Directives such as @inline and @stream (hypothetical) signal the runtime to inline resolver logic or deliver results progressively. This allows more precise control over data-fetching boundaries, batching, and caching strategies, potentially reducing the number of requests sent to downstream services and improving latency for deep nested queries.

Examples and tooling for GraphQLiin remain speculative, with no widely adopted implementation. Prototypes and discussions emphasize compatibility with existing GraphQL schemas while extending execution behavior. The concept continues to serve as a basis for exploring how inlining and streaming could influence modern API design.