Existing Plugins

# Plugins with router_service
grep -r "fn router_service" apollo-router/src/plugins/

# Plugins with supergraph_service
grep -r "fn supergraph_service" apollo-router/src/plugins/

# Plugins with subgraph_service
grep -r "fn subgraph_service" apollo-router/src/plugins/

// introspection_gate.rs
#[derive(Debug, Default, Deserialize, JsonSchema)]
struct Config {
  enabled: bool,
  proxy_request_header: String
}

// header_plugin.rs
#[derive(Clone, Debug, Default, Deserialize, JsonSchema)]
struct Config {
  enabled: bool,
  subgraphs_allowed_to_set_cookie: Option<Arc<HashSet<String>>>
}

// add_extensions.rs
#[derive(Debug, Default, Clone, Deserialize, JsonSchema)]
struct Extensions {
  name: String,
  rename_as: Option<String>
}

#[derive(Debug, Default, Clone, Deserialize, JsonSchema)]
struct Config {
  enabled: bool,
  extensions_to_forward: Arc<Vec<Extensions>>
}

// subgraph_circuit_breaker
#[derive(Debug, Clone, Deserialize, JsonSchema)]
struct Config {
  enabled: bool,
  default: CircuitBreakerSettings,
  subgraphs: HashMap<String, CircuitBreakerSettings>
}