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@silvermine/apigateway-utils

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Utility functions for working with AWS API Gateway

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<!doctype html> <html lang="en"> <head> <title>Code coverage report for src/Request.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../prettify.css" /> <link rel="stylesheet" href="../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../index.html">all files</a> / <a href="index.html">src/</a> Request.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Statements</span> <span class='fraction'>61/61</span> </div> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Branches</span> <span class='fraction'>44/44</span> </div> <div class='fl pad1y space-right2'> <span class="strong">100% </span> <span class="quiet">Functions</span> <span 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lang-js">'use strict'; &nbsp; var _ = require('underscore'), Class = require('class.extend'), DEFAULT_OPTS; &nbsp; DEFAULT_OPTS = { logRequest: true, }; &nbsp; module.exports = Class.extend({ &nbsp; init: function(evt, context, opts) { this._started = new Date().getTime(); this._event = evt; this._context = context; this._query = this._event.queryStringParameters || {}; this._pathParams = this._event.pathParameters || {}; this._headers = this._event.headers || {}; this._opts = _.extend({}, DEFAULT_OPTS, opts); &nbsp; if (this._opts.logRequest) { this.logRequest(_.extend({ event: 'api-request', path: evt.path, queryParams: this._query, }, this._opts.additionalRequestLoggingData)); } }, &nbsp; logRequest: function(reqObj) { // eslint-disable-next-line no-console console.log(JSON.stringify(reqObj)); }, &nbsp; _parseBody: function(throwError) { // By default we just squash any errors while parsing the body, but if the user // wants an error to be thrown, they can pass a flag to indicate this. if (this._getContentTypeEssence() === 'application/json') { try { return JSON.parse(this._event.body); } catch(err) { if (throwError) { throw err; } return null; } } &nbsp; return null; }, &nbsp; /** * Returns the type and subtype, e.g. 'application/json', of the MIME type found in the * Content-Type header. * * @see https://mimesniff.spec.whatwg.org/#mime-type-essence * @return {string} The essence of the MIME or `undefined` if the Content-Type header * is not found */ _getContentTypeEssence: function() { var contentType = this.header('Content-Type'); &nbsp; return _.isString(contentType) ? contentType.replace(/;.*/, '').trim().toLowerCase() : undefined; }, &nbsp; getEvent: function() { return this._event; }, &nbsp; getContext: function() { return this._context; }, &nbsp; validateQueryParams: function(rules) { var invalidFields = []; &nbsp; _.each(rules, function(rule, name) { var isValid = true, has = this.hasQueryParam(name), val = this.query(name), asNumber = Number(val); &nbsp; if (has &amp;&amp; !_.isUndefined(rule.pattern) &amp;&amp; !rule.pattern.test(val)) { this._query[name] = undefined; isValid = false; } &nbsp; if (has &amp;&amp; !_.isUndefined(rule.min) &amp;&amp; (_.isNaN(asNumber) || asNumber &lt; rule.min)) { this._query[name] = undefined; isValid = false; } &nbsp; if (has &amp;&amp; !_.isUndefined(rule.max) &amp;&amp; (_.isNaN(asNumber) || asNumber &gt; rule.max)) { this._query[name] = undefined; isValid = false; } &nbsp; if (rule.required &amp;&amp; (!this.hasQueryParam(name) || _.isEmpty(this.query(name)))) { isValid = false; } &nbsp; if (isValid === false) { invalidFields.push(name); } }.bind(this)); &nbsp; if (!_.isEmpty(invalidFields)) { return { isValid: false, msg: 'Invalid fields: ' + invalidFields.join(', ') }; } &nbsp; return { isValid: true }; }, &nbsp; hasPathParam: function(k) { return !_.isUndefined(this.pathParam(k)); }, &nbsp; renamePathParam: function(from, to) { // This is helpful in a scenario where you have two different types of operations // that use a path param at the same location in the URL, so APIGW only allows you // to use a single name for the param, but in the code it would make more sense if // the param were named something different. this._pathParams[to] = this._pathParams[from]; delete this._pathParams[from]; }, &nbsp; pathParam: function(k) { return this._pathParams[k]; }, &nbsp; hasQueryParam: function(k) { return !_.isUndefined(this.query(k)); }, &nbsp; query: function(k) { return this._query[k]; }, &nbsp; context: function(k) { return this._context[k]; }, &nbsp; body: function() { return this._event.body; }, &nbsp; parsedBody: function(throwError) { if (_.isUndefined(this._parsedBody)) { this._parsedBody = this._parseBody(throwError); } &nbsp; return this._parsedBody; }, &nbsp; isBase64Encoded: function() { return !!this._event.isBase64Encoded; }, &nbsp; header: function(k) { var userKey = (k || '').toLowerCase(); &nbsp; return _.find(this._headers, function(val, key) { return key.toLowerCase() === userKey; }); }, &nbsp; path: function() { return this._event.path; }, &nbsp; method: function() { return this._event.httpMethod; }, &nbsp; started: function() { return this._started; }, &nbsp; }); &nbsp;</pre></td></tr> </table></pre> <div class='push'></div><!-- for sticky footer --> </div><!-- /wrapper --> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Mon Dec 17 2018 16:37:45 GMT-0500 (EST) </div> </div> <script src="../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../sorter.js"></script> </body> </html>