supergraph:
  listen: 127.0.0.1:4000
  path: /
  introspection: true
homepage:
  enabled: false
sandbox:
  enabled: true
override_subgraph_url:
  accounts: http://localhost:{{SUBGRAPH_PORT}}
include_subgraph_errors:
  all: true
subscription:
  enabled: true
  mode:
    callback:
      public_url: "http://localhost:{{CALLBACK_RECEIVER_PORT}}/callback"
      listen: "127.0.0.1:{{CALLBACK_LISTENER_PORT}}"
      path: "/callback" 
      heartbeat_interval: 5s
      subgraphs: ["accounts"]
headers:
  all:
    request:
      - propagate:
          named: custom_id