chore: made flows array required on startFlowServer (#1241)

js/core/src/flow.ts

@@ -428,8 +428,8 @@ export class Flow<
  * Options to configure the flow server.
  */
 export interface FlowServerOptions {
-  /** List of flows to expose via the flow server. If not specified, all registered flows will be exposed. */
-  flows?: (CallableFlow<any, any> | StreamableFlow<any, any>)[];
+  /** List of flows to expose via the flow server. */
+  flows: (CallableFlow<any, any> | StreamableFlow<any, any>)[];
   /** Port to run the server on. In `dev` environment, actual port may be different if chosen port is occupied. Defaults to 3400. */
   port?: number;
   /** CORS options for the server. */
@@ -458,7 +458,7 @@ export class FlowServer {
   /** Express server instance. Null if server is not running. */
   private server: Server | null = null;
 
-  constructor(registry: Registry, options?: FlowServerOptions) {
+  constructor(registry: Registry, options: FlowServerOptions) {
     this.registry = registry;
     this.options = {
       port: 3400,

js/doc-snippets/src/flows/express.ts

@@ -28,7 +28,9 @@ export const menuSuggestionFlow = ai.defineFlow(
   }
 );
 
-ai.startFlowServer();
+ai.startFlowServer({
+  flows: [menuSuggestionFlow],
+});
 // [END ex01]
 
 // [START ex02]

js/genkit/src/genkit.ts

@@ -1040,7 +1040,7 @@ export class Genkit {
     }
   }
 
-  startFlowServer(options?: FlowServerOptions): FlowServer {
+  startFlowServer(options: FlowServerOptions): FlowServer {
     const flowServer = new FlowServer(this.registry, options);
     flowServer.start();
     return flowServer;

js/testapps/flow-sample1/src/index.ts

@@ -200,5 +200,3 @@ function generateString(length: number) {
   }
   return str.substring(0, length);
 }
-
-ai.startFlowServer();