apollo-router 2.13.1

A configurable, high-performance routing runtime for Apollo Federation 🚀
Documentation 
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subgraphs:
  connectors:
    routing_url: none
    schema:
      sdl: |
        extend schema
          @link(url: "https://specs.apollo.dev/federation/v2.10", import: ["@key", "@interfaceObject"])
          @link(url: "https://specs.apollo.dev/connect/v0.1", import: ["@connect", "@source"])
          @source(name: "json", http: { baseURL: "http://localhost:4001" })

        type Query {
          itfs: [Itf]
            @connect(
              source: "json"
              http: { GET: "/itfs" }
              selection: "id c"
            )

          itf(id: ID!): Itf
            @connect(
              source: "json"
              http: { GET: "/itfs/{$$args.id}" }
              selection: "id c d"
              entity: true
            )
        }

        type Itf @key(fields: "id") @interfaceObject {
          id: ID!
          c: Int!
          d: Int!
          e: String
            @connect(
              source: "json"
              http: { GET: "/itfs/{$$this.id}/e" }
              selection: "$"
            )
        }
  graphql:
    routing_url: none
    schema:
      sdl: |
        extend schema
          @link(url: "https://specs.apollo.dev/federation/v2.10", import: ["@key"])

        interface Itf @key(fields: "id") {
          id: ID!
        }

        type T1 implements Itf @key(fields: "id") {
          id: ID!
          a: String
        }

        type T2 implements Itf @key(fields: "id") {
          id: ID!
          b: String
        }