cleam up example client

Author: ihrpr

src/examples/client/simpleStreamableHttp.ts

@@ -12,7 +12,7 @@ import {
   ListResourcesRequest,
   ListResourcesResultSchema,
   LoggingMessageNotificationSchema,
-  ResourceListChangedNotificationSchema
+  ResourceListChangedNotificationSchema,
 } from '../../types.js';
 
 async function main(): Promise<void> {
@@ -25,7 +25,7 @@ async function main(): Promise<void> {
   const transport = new StreamableHTTPClientTransport(
     new URL('http://localhost:3000/mcp')
   );
-  
+
   // Connect the client using the transport and initialize the server  
   await client.connect(transport);
   console.log('Connected to MCP server');
@@ -44,49 +44,12 @@ async function main(): Promise<void> {
     console.log('Available resources count:', resourcesResult.resources.length);
   });
 
-  // List available tools
-  try {
-    const toolsRequest: ListToolsRequest = {
-      method: 'tools/list',
-      params: {}
-    };
-    const toolsResult = await client.request(toolsRequest, ListToolsResultSchema);
-    console.log('Available tools:', toolsResult.tools);
+  // List and call tools
+  await listTools(client);
 
-    if (toolsResult.tools.length === 0) {
-      console.log('No tools available from the server');
-    } else {
-      // Call the 'greet' tool
-      const greetRequest: CallToolRequest = {
-        method: 'tools/call',
-        params: {
-          name: 'greet',
-          arguments: { name: 'MCP User' }
-        }
-      };
-      const greetResult = await client.request(greetRequest, CallToolResultSchema);
-      console.log('Greeting result:', greetResult.content[0].text);
+  await callGreetTool(client);
+  await callMultiGreetTool(client);
 
-      // Call the new 'multi-greet' tool
-      console.log('\nCalling multi-greet tool (with notifications)...');
-      const multiGreetRequest: CallToolRequest = {
-        method: 'tools/call',
-        params: {
-          name: 'multi-greet',
-          arguments: { name: 'MCP User' }
-        }
-      };
-      const multiGreetResult = await client.request(multiGreetRequest, CallToolResultSchema);
-      console.log('Multi-greet results:');
-      multiGreetResult.content.forEach(item => {
-        if (item.type === 'text') {
-          console.log(`- ${item.text}`);
-        }
-      });
-    }
-  } catch (error) {
-    console.log(`Tools not supported by this server (${error})`);
-  }
 
   // List available prompts
   try {
@@ -130,6 +93,61 @@ async function main(): Promise<void> {
   console.log('\nKeeping connection open to receive notifications. Press Ctrl+C to exit.');
 }
 
+async function listTools(client: Client): Promise<void> {
+  try {
+    const toolsRequest: ListToolsRequest = {
+      method: 'tools/list',
+      params: {}
+    };
+    const toolsResult = await client.request(toolsRequest, ListToolsResultSchema);
+    console.log('Available tools:', toolsResult.tools);
+    if (toolsResult.tools.length === 0) {
+      console.log('No tools available from the server');
+    }
+  } catch (error) {
+    console.log(`Tools not supported by this server (${error})`);
+    return
+  }
+}
+
+async function callGreetTool(client: Client): Promise<void> {
+  try {
+    const greetRequest: CallToolRequest = {
+      method: 'tools/call',
+      params: {
+        name: 'greet',
+        arguments: { name: 'MCP User' }
+      }
+    };
+    const greetResult = await client.request(greetRequest, CallToolResultSchema);
+    console.log('Greeting result:', greetResult.content[0].text);
+  } catch (error) {
+    console.log(`Error calling greet tool: ${error}`);
+  }
+}
+
+async function callMultiGreetTool(client: Client): Promise<void> {
+  try {
+    console.log('\nCalling multi-greet tool (with notifications)...');
+    const multiGreetRequest: CallToolRequest = {
+      method: 'tools/call',
+      params: {
+        name: 'multi-greet',
+        arguments: { name: 'MCP User' }
+      }
+    };
+    const multiGreetResult = await client.request(multiGreetRequest, CallToolResultSchema);
+    console.log('Multi-greet results:');
+    multiGreetResult.content.forEach(item => {
+      if (item.type === 'text') {
+        console.log(`- ${item.text}`);
+      }
+    });
+  } catch (error) {
+    console.log(`Error calling multi-greet tool: ${error}`);
+  }
+}
+
 main().catch((error: unknown) => {
   console.error('Error running MCP client:', error);
   process.exit(1);