diff --git a/application/api/example.1/hook.js b/application/api/example.1/hook.js
new file mode 100644
index 00000000..fb677427
--- /dev/null
+++ b/application/api/example.1/hook.js
@@ -0,0 +1,7 @@
+({
+  router({ method, args, verb, headers }) {
+    const ip = context.client.ip;
+    console.log({ method, args, ip, verb, headers });
+    return {success:true, method, args, ip, verb, headers };
+  },
+});
diff --git a/test/client.js b/test/client.js
new file mode 100644
index 00000000..a8178ab8
--- /dev/null
+++ b/test/client.js
@@ -0,0 +1,236 @@
+'use strict';
+
+const runTests = (wsClient, wsToken, httpClient, httpToken) => {
+  const metatests = require('metatests');
+  const fs = require('fs');
+  const fsp = fs.promises;
+  const { Blob, Buffer } = require('node:buffer');
+  const stream = require('stream');
+
+
+
+  metatests.testAsync('system/introspect', async (test) => {
+    const introspect = await wsClient.scaffold('system')('introspect')([
+      'auth',
+      'console',
+      'example',
+      'files',
+      'test',
+    ]);
+    test.strictSame(introspect?.auth?.restore?.[0], 'token');
+    test.end();
+  });
+
+  metatests.testAsync('example/add', async (test) => {
+    const add = await wsClient.scaffold('example')('add')({ a: 1, b: 2 });
+    test.strictSame(add, 3);
+    test.end();
+  });
+
+  metatests.testAsync('example/citiesByCountry', async (test) => {
+    const cities = await wsClient.scaffold('example')('citiesByCountry')({
+      countryId: 1,
+    });
+    test.strictEqual(cities?.result, 'success');
+    test.strictEqual(Array.isArray(cities?.data), true);
+    test.end();
+  });
+
+  metatests.testAsync('example/customError', async (test) => {
+    try {
+      await wsClient.scaffold('example')('customError')();
+    } catch (customError) {
+      test.errorCompare(customError, new Error('Return custom error', 12345));
+      test.strictEqual(customError?.code, 12345);
+    } finally {
+      test.end();
+    }
+  });
+
+  metatests.testAsync('example/customException', async (test) => {
+    try {
+      await wsClient.scaffold('example')('customException')();
+    } catch (customError) {
+      test.errorCompare(customError, new Error('Custom ecxeption', 12345));
+      test.strictEqual(customError?.code, 12345);
+    } finally {
+      test.end();
+    }
+  });
+
+  metatests.testAsync('example/error', async (test) => {
+    try {
+      await wsClient.scaffold('example')('error')();
+    } catch (Error) {
+      test.errorCompare(Error, new Error('Return error'));
+    } finally {
+      test.end();
+    }
+  });
+
+  metatests.testAsync('example/exception', async (test) => {
+
+    try {
+      await wsClient.scaffold('example')('exception')();
+    }
+    catch(Error){
+      test.errorCompare(Error, new Error('Example exception'));
+    }
+    finally {
+      test.end();
+    }
+      // test.fail('Shoud never reach here');
+      // test.end();
+  });
+
+  metatests.testAsync('example/getClientInfo', async (test) => {
+
+      const info = await wsClient.scaffold('example')('getClientInfo')();
+
+      // console.log('info', info)
+      test.strictEqual(info?.result?.ip, '127.0.0.1');
+      test.strictEqual(info?.result?.token, wsToken);
+      test.strictEqual(info?.result?.accountId, '2');
+      test.end();
+
+  });
+
+  metatests.testAsync('example/redisSet + redisGet', async (test) => {
+    try {
+      const setting = await wsClient.scaffold('example')('redisSet')({
+        key: 'MetarhiaExampleTest',
+        value: 1,
+      });
+      const getting = await wsClient.scaffold('example')('redisGet')({
+        key: 'MetarhiaExampleTest',
+      });
+      // console.log({setting, getting});
+      test.strictEqual(getting, '1');
+    } catch (Error) {
+      test.errorCompare(Error, new Error('Example exception'));
+    } finally {
+      test.end();
+    }
+  });
+
+  // metatests.testAsync('example/resources', async (test) => {
+  //   try {
+  //     const resources = await wsClient.scaffold('example')('resources')();
+  //     test.strictEqual(resources?.total, null);
+  //     // console.log({resources});
+  //   } catch (Error) {
+  //     console.log(Error);
+  //   } finally {
+  //     test.end();
+  //   }
+  // });
+
+  //   metatests.testAsync('example/hook', async (test) => {
+  //     let hook;
+  //     try {
+  //        hook = await client.httpCall('example', 1)('hook')();
+
+  //       console.log(hook)
+  //       test.strictEqual(hook?.success, true);
+  //     }
+  //     catch(e){
+  //       console.log(e)
+  //     }
+  //     finally {
+  //     test.end(hook);
+  //     }
+
+  // });
+
+
+
+  // metatests.testAsync('example/subscribe', async (test) => {
+  //   try {
+  //     const wait = await wsClient.scaffold('example')('wait')({ delay: 1000 });
+  //     // console.log(client.api.chat)
+  //     test.strictEqual(wait, 'done');
+  //   } catch (Error) {
+  //     console.log(Error);
+  //   } finally {
+  //     test.end();
+  //   }
+  // });
+/*
+   metatests.testAsync('example/uploadFile', async (test) => {
+      const original = 'uploading/sunset.jpg', uploaded = '../application/tmp/sunset_uploaded.jpg';
+      // const buffer = Buffer.from(fs.readFileSync(original));
+      // const blob = Uint8Array.from(buffer).buffer;
+      const content = await fsp.readFile(original);
+      const blob = new Blob([content]);
+      // blob.name = 'sunset.jpg';
+      // console.log(blob.size)
+
+      // console.log(buffer)
+    const uploader = client.createBlobUploader(blob);
+    uploader.upload();
+
+      // const readable = fs.createReadStream(original);
+      // const writable = client.createStream(original);
+      // readable.pipe(writable);
+      // // once readable is piped
+      // await wsClient.scaffold('example')('uploadFile')('sunset_uploaded.jpg', {stremId: writable.streamId});
+
+      // const fixture = fs.readFileSync(original);
+      // const result = fs.readFileSync(uploaded);
+      // test.strictSame(result, fixture);
+      test.end();
+    });
+*/
+
+  // metatests.testAsync('example/wait', async (test) => {
+  //   try {
+  //     const wait = await wsClient.scaffold('example')('wait')({ delay: 1000 });
+  //     test.strictEqual(wait, 'done');
+  //   } catch (Error) {
+  //     console.log(Error);
+  //   } finally {
+  //     test.end();
+  //   }
+  // });
+
+};
+
+const connect = async () => {
+  const { Metacom } = require('metacom/lib/client');
+
+  const wsUrl = 'ws://127.0.0.1:8000/api';
+  const wsClient = Metacom.create(wsUrl);
+  await wsClient.open();
+  const wsSignin = await wsClient.scaffold('auth')('signin')({
+    login: 'marcus',
+    password: 'marcus',
+  });
+
+  const wsToken = wsSignin?.token;
+  // const wsClient = null, wsToken = null;
+
+  const httpUrl = 'http://127.0.0.1:8000/api';
+  const httpClient = Metacom.create(httpUrl);
+  await httpClient.open();
+  const httpSignin = await httpClient.scaffold('auth')('signin')({
+    login: 'marcus',
+    password: 'marcus',
+  });
+  const httpToken = httpSignin?.token;
+  //  const httpClient = null, httpToken = null;
+
+
+  // await client.load( 'auth',
+  // 'console',
+  // 'example',
+  // 'files',
+  // 'test');
+
+
+
+  runTests(wsClient, wsToken, httpClient, httpToken);
+
+};
+
+connect();
+// console.log(JSON.stringify({ a: 1, b: 2 }));
diff --git a/test/uploading/sunset.jpg b/test/uploading/sunset.jpg
new file mode 100644
index 00000000..e13c2ab7
Binary files /dev/null and b/test/uploading/sunset.jpg differ