Apollo Library of Technical Specifications

1Current Specs

link v1.0 provides @link and @id, the fundamental core schema linking directives.

federation v2.9 provides graph composition primitives for use in subgraphs.

join v0.3 declaratively describes joins between types in a supergraph.

tag v0.2 attaches a single piece of string metadata to various locations in a schema

inaccessible v0.2 masks fields and types from a graph’s public API

kotlin_labs v0.4 incubating directives supported by the Apollo Kotlin client

nullability v0.4 incubating directives to work with nullability

cost v0.1 adds cost metadata to a schema for demand control

cache v0.1 directives related to caching

All specifications: