fix ca trust test and snek high score

web/projects/ui/src/app/services/api/api.types.ts

@@ -12,7 +12,10 @@ export module RR {
 
   export type WebsocketConfig<T> = Omit<WebSocketSubjectConfig<T>, 'url'>
 
-  // server state
+  // state
+
+  export type EchoReq = { message: string } // server.echo
+  export type EchoRes = string
 
   export type ServerState = 'initializing' | 'error' | 'running'
 

web/projects/ui/src/app/services/api/embassy-api.service.ts

@@ -17,7 +17,9 @@ export abstract class ApiService {
     config: RR.WebsocketConfig<T>,
   ): Observable<T>
 
-  // server state
+  // state
+
+  abstract echo(params: RR.EchoReq, url: string): Promise<RR.EchoRes>
 
   abstract getState(): Promise<RR.ServerState>
 

web/projects/ui/src/app/services/api/embassy-live-api.service.ts

@@ -71,6 +71,10 @@ export class LiveApiService extends ApiService {
 
   // state
 
+  async echo(params: RR.EchoReq, url: string): Promise<RR.EchoRes> {
+    return this.rpcRequest({ method: 'echo', params }, url)
+  }
+
   async getState(): Promise<RR.ServerState> {
     return this.rpcRequest({ method: 'state', params: {} })
   }

web/projects/ui/src/app/services/api/embassy-mock-api.service.ts

@@ -118,7 +118,17 @@ export class MockApiService extends ApiService {
     }
   }
 
-  // server state
+  // state
+
+  async echo(params: RR.EchoReq, url: string): Promise<RR.EchoRes> {
+    if (url) {
+      const num = Math.floor(Math.random() * 10) + 1
+      if (num > 8) return params.message
+      throw new Error()
+    }
+    await pauseFor(2000)
+    return params.message
+  }
 
   private stateIndex = 0
   async getState(): Promise<RR.ServerState> {