Feat/axios nodejs

codegens/nodejs-axios/.gitignore

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+.DS_Store
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# temporarily generated file
+run.js
+
+# Prevent IDE stuff
+.idea
+.vscode
+*.sublime-*
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+.coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+out/

codegens/nodejs-axios/README.md

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+# codegen-nodejs-axios
+
+> Converts Postman-SDK Request into code snippet for NodeJS-axios.
+
+#### Prerequisites
+To run the module, ensure that you have NodeJS >= v8. A copy of the NodeJS installable can be downloaded from https://nodejs.org/en/download/package-manager.
+
+## Using the Module
+The module will expose an object which will have property `convert` which is the function for converting the Postman-SDK request to nodejs-axios code snippet and `getOptions` function which returns an array of supported options.
+
+### convert function
+Convert function will take three parameters
+* `request`- Postman-SDK Request object
+
+* `options`- options is an object which can have following properties
+    * `indentType`- String denoting type of indentation for code snippet. eg: 'Space', 'Tab'
+    * `indentCount`- positiveInteger representing count of indentation required.
+    * `requestTimeout` : Integer denoting time after which the request will bail out in milli-seconds
+    * `trimRequestBody` : Trim request body fields
+    * `followRedirect` : Boolean denoting whether to redirect a request
+
+* `callback`- callback function with first parameter as error and second parameter as string for code snippet
+
+##### Example:
+```js
+var request = new sdk.Request('www.google.com'),  //using postman sdk to create request  
+    options = {
+        indentType: 'Space',
+        indentCount: 2,
+        ES6_enabled: true
+    };
+convert(request, options, function(error, snippet) {
+    if (error) {
+        //  handle error
+    }
+    //  handle snippet
+});
+```
+
+### getOptions function
+
+This function returns a list of options supported by this codegen.
+
+#### Example
+```js
+var options = getOptions();
+
+console.log(options);
+// output
+// [
+//       {
+//         name: 'Set indentation count',
+//         id: 'indentCount',
+//         type: 'positiveInteger',
+//         default: 2,
+//         description: 'Set the number of indentation characters to add per code level'
+//       },
+//       ...
+// ]
+```
+
+### Guideline for using generated snippet
+* Generated snippet requires `axios`, `form-data`, `qs` and `fs` modules.
+
+* Since Postman-SDK Request object doesn't provide complete path of the file, it needs to be manually inserted in case of uploading a file.
+
+* This module doesn't support cookies.

codegens/nodejs-axios/index.js

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+module.exports = require('./lib');

codegens/nodejs-axios/lib/axios.js

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+const _ = require('./lodash'),
+  parseRequest = require('./parseRequest'),
+  sanitize = require('./util').sanitize,
+  sanitizeOptions = require('./util').sanitizeOptions,
+  addFormParam = require('./util').addFormParam;
+
+/**
+ * retuns snippet of nodejs(axios) by parsing data from Postman-SDK request object
+ *
+ * @param {Object} request - Postman SDK request object
+ * @param {String} indentString - indentation required for code snippet
+ * @param {Object} options
+ * @returns {String} - nodejs(axios) code snippet for given request object
+ */
+function makeSnippet (request, indentString, options) {
+
+  var snippet,
+    configArray = [],
+    dataSnippet = '',
+    body,
+    headers,
+    indentType = options.indentType === 'Tab' ? '\t' : ' ',
+    indent = indentType.repeat(options.indentCount),
+    varDeclare = options.ES6_enabled ? 'const' : 'var';
+
+  snippet = varDeclare + ' axios = require(\'axios\');\n';
+  if (request.body && !request.headers.has('Content-Type')) {
+    if (request.body.mode === 'file') {
+      request.addHeader({
+        key: 'Content-Type',
+        value: 'text/plain'
+      });
+    }
+    else if (request.body.mode === 'graphql') {
+      request.addHeader({
+        key: 'Content-Type',
+        value: 'application/json'
+      });
+    }
+  }
+
+  // The following code handles multiple files in the same formdata param.
+  // It removes the form data params where the src property is an array of filepath strings
+  // Splits that array into different form data params with src set as a single filepath string
+  if (request.body && request.body.mode === 'formdata') {
+    let formdata = request.body.formdata,
+      formdataArray = [];
+    formdata.members.forEach((param) => {
+      let key = param.key,
+        type = param.type,
+        disabled = param.disabled,
+        contentType = param.contentType;
+      // check if type is file or text
+      if (type === 'file') {
+        // if src is not of type string we check for array(multiple files)
+        if (typeof param.src !== 'string') {
+          // if src is an array(not empty), iterate over it and add files as separate form fields
+          if (Array.isArray(param.src) && param.src.length) {
+            param.src.forEach((filePath) => {
+              addFormParam(formdataArray, key, param.type, filePath, disabled, contentType);
+            });
+          }
+          // if src is not an array or string, or is an empty array, add a placeholder for file path(no files case)
+          else {
+            addFormParam(formdataArray, key, param.type, '/path/to/file', disabled, contentType);
+          }
+        }
+        // if src is string, directly add the param with src as filepath
+        else {
+          addFormParam(formdataArray, key, param.type, param.src, disabled, contentType);
+        }
+      }
+      // if type is text, directly add it to formdata array
+      else {
+        addFormParam(formdataArray, key, param.type, param.value, disabled, contentType);
+      }
+    });
+
+    request.body.update({
+      mode: 'formdata',
+      formdata: formdataArray
+    });
+  }
+
+  body = request.body && request.body.toJSON();
+
+  dataSnippet = parseRequest.parseBody(body, 
+                                    options.trimRequestBody,
+                                    indent,
+                                    request.headers.get('Content-Type'),
+                                    options.ES6_enabled);
+  snippet += dataSnippet+'\n';
+
+  configArray.push(indentString + `'method': '${request.method.toLowerCase()}'`);
+  configArray.push(indentString + `'url': '${sanitize(request.url.toString())}'`);  
+
+  headers = parseRequest.parseHeader(request, indentString)
+  // https://github.com/axios/axios/issues/789#issuecomment-577177492
+  if (!_.isEmpty(body) && body.formdata ) {
+    // we can assume that data object is filled up
+    headers.push(`\n${indentString}...data.getHeaders()`);
+  }
+  let headerSnippet = indentString + "'headers': { " 
+  if(headers.length >0 ) {
+    headerSnippet += "\n"
+    headerSnippet += indentString+ headers.join(', \n'+indentString) + "\n"
+    headerSnippet += indentString + '}'
+  } else {
+    headerSnippet += '}'
+  }
+
+  configArray.push(headerSnippet);
+
+  if (options.requestTimeout) {
+    configArray.push(indentString + `timeout: ${options.requestTimeout}`);
+  }
+  if (options.followRedirect === false) {
+    // setting the maxRedirects to 0 will disable any redirects.
+    // by default, maxRedirects are set to 5
+    configArray.push(indentString + 'maxRedirects: 0');
+  }
+  if (dataSnippet !== '') {
+    // although just data is enough, whatever :shrug:
+    configArray.push(indentString +`data : data`)
+  }
+  snippet += varDeclare + ' config = {\n';
+  snippet += configArray.join(',\n') + '\n';
+  snippet += '}\n';
+  snippet += 'axios(config)\n';
+  snippet += '.then(function (response) {\n';
+  snippet += indentString + 'console.log(JSON.stringify(response.data));\n';
+  snippet += '})\n';
+  snippet += '.catch(function (error) {\n';
+  snippet += indentString + 'console.log(error);\n';
+  snippet += '});\n';
+
+  return snippet;
+}
+
+/**
+ * Used to get the options specific to this codegen
+ *
+ * @returns {Array} - Returns an array of option objects
+ */
+function getOptions () {
+  return [
+    {
+      name: 'Set indentation count',
+      id: 'indentCount',
+      type: 'positiveInteger',
+      default: 2,
+      description: 'Set the number of indentation characters to add per code level'
+    },
+    {
+      name: 'Set indentation type',
+      id: 'indentType',
+      type: 'enum',
+      availableOptions: ['Tab', 'Space'],
+      default: 'Space',
+      description: 'Select the character used to indent lines of code'
+    },
+    {
+      name: 'Set request timeout',
+      id: 'requestTimeout',
+      type: 'positiveInteger',
+      default: 0,
+      description: 'Set number of milliseconds the request should wait for a response' +
+    ' before timing out (use 0 for infinity)'
+    },
+    {
+      name: 'Follow redirects',
+      id: 'followRedirect',
+      type: 'boolean',
+      default: true,
+      description: 'Automatically follow HTTP redirects'
+    },
+    {
+      name: 'Trim request body fields',
+      id: 'trimRequestBody',
+      type: 'boolean',
+      default: false,
+      description: 'Remove white space and additional lines that may affect the server\'s response'
+    },
+    {
+      name: 'Enable ES6 features',
+      id: 'ES6_enabled',
+      type: 'boolean',
+      default: false,
+      description: 'Modifies code snippet to incorporate ES6 (EcmaScript) features'
+    }
+  ];
+}
+
+
+/**
+ * Converts Postman sdk request object to nodejs axios code snippet
+ *
+ * @param {Object} request - postman-SDK request object
+ * @param {Object} options
+ * @param {String} options.indentType - type for indentation eg: Space, Tab
+ * @param {String} options.indentCount - number of spaces or tabs for indentation.
+ * @param {Boolean} options.followRedirect - whether to enable followredirect
+ * @param {Boolean} options.trimRequestBody - whether to trim fields in request body or not
+ * @param {Number} options.requestTimeout : time in milli-seconds after which request will bail out
+ * @param {Function} callback - callback function with parameters (error, snippet)
+ */
+function convert (request, options, callback) {
+  if (!_.isFunction(callback)) {
+    throw new Error('NodeJS-Axios-Converter: callback is not valid function');
+  }
+  options = sanitizeOptions(options, getOptions());
+
+  //  String representing value of indentation required
+  var indentString;
+
+  indentString = options.indentType === 'Tab' ? '\t' : ' ';
+  indentString = indentString.repeat(options.indentCount);
+
+  return callback(null, makeSnippet(request, indentString, options));
+}
+
+module.exports = {
+  convert: convert,
+  getOptions: getOptions
+};

codegens/nodejs-axios/lib/index.js

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+module.exports = {
+  convert: require('./axios').convert,
+  getOptions: require('./axios').getOptions
+};