Capture mode and verbose mode added

Author: muratcorlu

CHANGELOG.md

@@ -1,3 +1,10 @@
+## 1.0.4 (2018-02-06)
+
+### Features:
+
+- **Capture Mode**: Now you can automatically generate mock files from your api responses.
+- **Verbose Mode**: `--verbose` cli parameter added to use verbose mode of connect-api-mocker.
+
 ## 1.0.3 (2018-01-12)
 
 ### Features:

README.md

@@ -20,11 +20,13 @@ That command will start to serve your mocks on port `9090` by default.
 
 ## Arguments
 
-`mockit` command has 3 available arguments. 
+`mockit` command has 4 available arguments.
 
-    [-p | --port]     with default value `9090`, 
+    [-p | --port]     with default value `9090`,
     [-f | --fromPath] with default value `/`,
     [-t | --toPath]   with default value ``
+    [-c | --capture]   with default value `false`
+    [-v | --verbose]   with default value `false`
 
 These arguments are optional. You can use `mockit` command with any one of them or any combination of them.
 
@@ -36,9 +38,9 @@ You can see usage examples below:
 
 Or you can combine any of them like:
 
-`mockit --port=8989 --fromPath=/api --toPath=/mapi` 
+`mockit --port=8989 --fromPath=/api --toPath=/mapi`
 
-Or 
+Or
 
 `mockit -p 8989 -f '/api -t '/mapi'`
 
@@ -96,3 +98,22 @@ module.exports = {
 }
 ```
 
+### Capture mode
+
+With capture mode, you can automatically create mock files from your api origin responses over proxy. You can enable capture mode by `--capture` (or `-c`) command line parameter or `capture` property in config file:
+
+```js
+module.exports = {
+    port: 9090,
+    map: {
+        '/api': {
+            target: 'mocks/api',
+            proxy: 'https://api.yourdomain.com',
+            capture: true
+        }
+    }
+}
+```
+
+When capture mode enabled, if you don't have a mock file for a request and if you have a proxy definition, a mock file will automatically generated for you for successful responses from your origin.
+

package.json

@@ -1,14 +1,15 @@
 {
   "name": "cli-api-mocker",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "description": "CLI wrapper for connect-api-mocker",
   "main": "src/index.js",
   "dependencies": {
     "command-line-args": "^4.0.7",
-    "connect-api-mocker": "^1.3.5",
+    "connect-api-mocker": "^1.3.6",
     "cors": "^2.8.4",
     "express": "^4.15.4",
-    "http-proxy-middleware": "^0.17.4"
+    "http-proxy-middleware": "^0.17.4",
+    "mkdirp": "^0.5.1"
   },
   "devDependencies": {},
   "scripts": {

src/index.js

@@ -5,71 +5,127 @@ var apiMocker = require('connect-api-mocker');
 var bodyParser = require('body-parser')
 var proxy = require('http-proxy-middleware');
 var cors = require('cors');
+var fs = require('fs');
+var pth = require('path');
+var mkdirp = require('mkdirp');
 var commandLineArgs = require('command-line-args');
 var defaultPortValue = 9090;
 var defaultFromPathValue = '/';
 var defaultToPathValue = '';
 var optionDefinitions = [
  { name: 'port', alias: 'p', type: Number, defaultValue: defaultPortValue },
  { name: 'fromPath', alias: 'f', type: String, defaultValue: defaultFromPathValue },
- { name: 'toPath', alias: 't', type: String, defaultValue: defaultToPathValue }
+ { name: 'toPath', alias: 't', type: String, defaultValue: defaultToPathValue },
+ { name: 'capture', alias: 'c', type: Boolean, defaultValue: false },
+ { name: 'verbose', alias: 'v', type: Boolean, defaultValue: false }
 ];
 
+function escapeRegExp(str) {
+  return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
+}
+
 var options = commandLineArgs(optionDefinitions);
 
 var app = express();
 
 var mapping = {};
 
-mapping[options.fromPath] = options.toPath;
+mapping[options.fromPath] = {
+  target: options.toPath
+};
 
 var  defaultConfig = {
-    port: options.port,
-    map: mapping
+  port: options.port,
+  map: mapping
 };
 var config = defaultConfig;
 
 try {
-    var loadedConfig = require(path.resolve(process.cwd() , 'mock.config.js'));
-    console.log('Config file found mocking!');
+  var loadedConfig = require(path.resolve(process.cwd() , 'mock.config.js'));
+  console.log('Config file found mocking!');
 
-    if (config.port === defaultPortValue && loadedConfig.port) {
-        config.port = loadedConfig.port;
-    }
+  if (config.port === defaultPortValue && loadedConfig.port) {
+    config.port = loadedConfig.port;
+  }
 
-    var mapKeys = Object.keys(config.map);
-    if (loadedConfig.map) {
-        mapKeys.forEach(function (mapKey) {
-            loadedConfig.map[mapKey] = config.map[mapKey];
-        });
-        config.map = loadedConfig.map;
-    }
+  var mapKeys = Object.keys(config.map);
+  if (loadedConfig.map) {
+    mapKeys.forEach(function (mapKey) {
+      loadedConfig.map[mapKey] = config.map[mapKey];
+    });
+    config.map = loadedConfig.map;
+  }
 } catch (error) {
-    // there is no config
+  // there is no config
 }
 
-app.use(cors())
+if (options.verbose) {
+  Object.keys(config.map).forEach(function (key) {
+    config.map[key].verbose = true;
+  });
+}
 
-for(var path in config.map) {
+app.use(cors());
 
-    var conf = config.map[path];
+for(var path in config.map) {
+  (function (basePath) {
+    var conf = config.map[basePath];
 
     if (conf.proxy) {
-        conf.nextOnNotFound = true;
+      conf.nextOnNotFound = true;
     }
 
-    app.use(path, apiMocker(conf));
-    console.log(`Mocking enabled: ${path} => ${conf}`);
+    app.use(basePath, apiMocker(conf));
+    console.log(`Mocking enabled: ${basePath} => ${conf.target || conf}`);
 
     if (conf.proxy) {
-        console.log(`Proxy enabled: ${path} => ${conf.proxy}`);
-        if (typeof conf.proxy == 'string') {
-            config.proxy = {
-                target: conf.proxy
-            }
+      console.log(`Proxy enabled: ${basePath} => ${conf.proxy}`);
+      if (typeof conf.proxy == 'string') {
+        conf.proxy = {
+          target: conf.proxy
         }
-        app.use(path, proxy(conf.proxy));
+      }
+
+      if (conf.capture || options.capture) {
+        console.log('Capture Mode enabled for mocks!');
+
+        conf.proxy.onProxyRes = function(proxyRes, req, res) {
+          var body = "";
+          if (proxyRes.statusCode < 404) {
+            proxyRes.on('data', function(data) {
+              data = data.toString('utf-8');
+              body += data;
+            });
+
+            proxyRes.on('end', function() {
+              var requestedFilePath = req.path.replace(new RegExp('^(\/)?' + escapeRegExp(basePath)), '')
+              var targetPath = pth.join(conf.target || conf, requestedFilePath);
+
+              var contentType = 'json';
+              if (proxyRes.headers['content-type'].indexOf('xml') > -1) {
+                contentType = 'xml';
+              }
+
+              mkdirp.sync(targetPath);
+
+              var targetFile = pth.join(targetPath, req.method + '.' + contentType);
+
+              if (!fs.existsSync(targetFile)) {
+                fs.writeFileSync(targetFile, body);
+                console.log('[Capture Mode] New mock file saved to ' + targetFile);
+              }
+            });
+          }
+        }
+      }
+
+      app.use(basePath, proxy(conf.proxy));
+    } else {
+      if (conf.capture || options.capture) {
+        console.error('You can not use capture mode without defining a proxy.');
+      }
     }
+  })(path);
 }
 
 app.listen(config.port, function () {