Some refactoring
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3 changed files with 282 additions and 232 deletions
201
lib/bing.js
201
lib/bing.js
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@ -16,81 +16,94 @@ var request = require('request'),
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*/
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var Bing = function (options) {
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if (!(this instanceof Bing)) return new Bing(options);
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if (!(this instanceof Bing)) return new Bing(options);
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var defaults = {
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var defaults = {
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//Bing Search API URI
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rootUri: "https://api.datamarket.azure.com/Bing/Search/v1/",
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//Bing Search API URI
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rootUri: "https://api.datamarket.azure.com/Bing/Search/v1/",
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//Account Key
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accKey: null,
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//Account Key
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accKey: null,
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//Bing UserAgent
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userAgent: 'Bing Search Client for Node.js',
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//Bing UserAgent
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userAgent: 'Bing Search Client for Node.js',
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//Request Timeout
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reqTimeout: 5000,
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//Request Timeout
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reqTimeout: 5000,
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// Number of results (limited to 50 by API)
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top: 50,
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// Number of results (limited to 50 by API)
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top: 50,
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// Number of skipped results (pagination)
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skip: 0
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// Number of skipped results (pagination)
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skip: 0
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};
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};
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//merge options passed in with defaults
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this.options = _.extend(defaults, options);
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//merge options passed in with defaults
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this.options = _.extend(defaults, options);
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this.searchVertical = function (query, vertical, options, callback) {
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if (typeof options === 'function') {
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callback = options;
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}
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if (typeof callback != 'function') {
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throw "Error: Callback function required!";
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}
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this.searchVertical = function (query, vertical, options, callback) {
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// Create a copy of the options, to avoid permanent overwrites
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var opts = JSON.parse(JSON.stringify(this.options));
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if (typeof options === 'function') {
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callback = options;
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}
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if (typeof callback != 'function') {
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throw "Error: Callback function required!";
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}
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if (typeof options === 'object') {
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_.extend(opts, options);
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}
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// Create a copy of the options, to avoid permanent overwrites
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var opts = JSON.parse(JSON.stringify(this.options));
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var reqUri = opts.rootUri + vertical + "?$format=json&" + qs.stringify({
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"Query": "'" + query + "'"
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}) + "&$top=" + opts.top + "&$skip=" + opts.skip + (opts.sources ? "&Sources=%27" + opts.sources + "%27" : '') + (opts.newssortby ? "&NewsSortBy=%27" + opts.newssortby + "%27" : '') + (opts.newscategory ? "&NewsCategory=%27" + opts.newscategory + "%27" : '') + (opts.newslocationoverride ? "&NewsLocationOverride=%27" + opts.newslocationoverride + "%27" : '') + (opts.market ? "&Market=%27" + opts.market + "%27" : '') + (opts.adult ? "&Adult=%27" + opts.adult + "%27" : '') + (opts.imagefilters ? '&' + qs.stringify({
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"ImageFilters": "'" + opts.imagefilters + "'"
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}) : '') + (opts.videofilters ? '&' + qs.stringify({
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"VideoFilters": "'" + opts.videofilters + "'"
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}) : '');
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if (typeof options === 'object') {
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_.extend(opts, options);
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}
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request({
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uri: reqUri,
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method: opts.method || "GET",
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headers: {
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"User-Agent": opts.userAgent
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},
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auth: {
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user: opts.accKey,
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pass: opts.accKey
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},
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timeout: opts.reqTimeout
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var reqUri = opts.rootUri
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+ vertical
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+ "?$format=json&" + qs.stringify({ "Query": "'" + query + "'" })
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+ "&$top=" + opts.top
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+ "&$skip=" + opts.skip
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+ (opts.sources ? "&Sources=%27" + opts.sources + "%27" : '')
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+ (opts.newssortby ? "&NewsSortBy=%27" + opts.newssortby + "%27" : '')
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+ (opts.newscategory ? "&NewsCategory=%27" + opts.newscategory + "%27" : '')
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+ (opts.newslocationoverride
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? "&NewsLocationOverride=%27" + opts.newslocationoverride + "%27"
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: '')
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+ (opts.market ? "&Market=%27" + opts.market + "%27" : '')
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+ (opts.adult ? "&Adult=%27" + opts.adult + "%27" : '')
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+ (opts.imagefilters
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? '&' + qs.stringify({ "ImageFilters": "'" + opts.imagefilters + "'" })
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: '')
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+ (opts.videofilters
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? '&' + qs.stringify({ "VideoFilters": "'" + opts.videofilters + "'" })
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: '');
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}, function (err, res, body) {
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request({
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uri: reqUri,
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method: opts.method || "GET",
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headers: {
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"User-Agent": opts.userAgent
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},
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auth: {
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user: opts.accKey,
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pass: opts.accKey
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},
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timeout: opts.reqTimeout
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if (res && res.statusCode !== 200) {
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err = new Error(body);
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} else {
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}, function (err, res, body) {
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// Parse body, if body
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body = typeof body === 'string' ? JSON.parse(body) : body;
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}
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if (res && res.statusCode !== 200) {
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err = new Error(body);
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} else {
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callback(err, res, body);
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});
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};
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// Parse body, if body
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body = typeof body === 'string' ? JSON.parse(body) : body;
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}
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callback(err, res, body);
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});
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};
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};
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@ -118,7 +131,7 @@ var Bing = function (options) {
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* @function
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*/
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Bing.prototype.web = function (query, options, callback) {
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this.searchVertical(query, "Web", options, callback);
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this.searchVertical(query, "Web", options, callback);
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};
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// Alias Bing.search to Bing.web
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@ -140,7 +153,7 @@ Bing.prototype.search = Bing.prototype.web;
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* @function
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*/
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Bing.prototype.composite = function (query, options, callback) {
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this.searchVertical(query, "Composite", options, callback);
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this.searchVertical(query, "Composite", options, callback);
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};
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/**
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@ -157,7 +170,7 @@ Bing.prototype.composite = function (query, options, callback) {
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* @function
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*/
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Bing.prototype.news = function (query, options, callback) {
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this.searchVertical(query, "News", options, callback);
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this.searchVertical(query, "News", options, callback);
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};
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/**
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@ -174,18 +187,21 @@ Bing.prototype.news = function (query, options, callback) {
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* @function
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*/
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Bing.prototype.video = function (query, options, callback) {
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if (options && typeof options === 'object' && options.videofilters && typeof options.videofilters === 'object') {
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var filterQuery = '';
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var filters = Object.keys(options.videofilters);
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filters.map(function (key, i) {
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filterQuery += capitalizeFirstLetter(key) + ':';
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filterQuery += capitalizeFirstLetter(options.videofilters[key]);
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if (i < filters.length - 1)
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filterQuery += '+';
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});
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options.videofilters = filterQuery;
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}
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this.searchVertical(query, "Video", options, callback);
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if (options
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&& typeof options === 'object'
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&& options.videofilters
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&& typeof options.videofilters === 'object') {
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var filterQuery = Object.keys(options.videofilters)
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.map(function(key){
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return capitalise(key) + ':'
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+ capitalise(options.videofilters[key]);
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})
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.join('+');
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options.videofilters = filterQuery;
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}
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this.searchVertical(query, "Video", options, callback);
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};
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@ -205,22 +221,35 @@ Bing.prototype.video = function (query, options, callback) {
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* @function
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*/
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Bing.prototype.images = function (query, options, callback) {
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if (options && typeof options === 'object' && options.imagefilters && typeof options.imagefilters === 'object') {
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var filterQuery = '';
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var filters = Object.keys(options.imagefilters);
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filters.map(function (key, i) {
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filterQuery += capitalizeFirstLetter(key) + ':';
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filterQuery += capitalizeFirstLetter(options.imagefilters[key]);
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if (i < filters.length - 1)
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filterQuery += '+';
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});
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options.imagefilters = filterQuery;
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}
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this.searchVertical(query, "Image", options, callback);
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if (options
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&& typeof options === 'object'
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&& options.imagefilters
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&& typeof options.imagefilters === 'object') {
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var filterQuery = Object.keys(options.imagefilters)
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.map(function(key){
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return capitalise(key) + ':'
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+ capitalise(options.imagefilters[key]);
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})
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.join('+');
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options.imagefilters = filterQuery;
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}
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this.searchVertical(query, "Image", options, callback);
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};
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function capitalizeFirstLetter(s) {
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return s.charAt(0).toUpperCase() + s.slice(1);
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/**
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* Capitalises the first word of the passed string
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*
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* @param {String} s String to be capitalised
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*
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* @funtion
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*/
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function capitalise(s) {
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return s.charAt(0).toUpperCase() + s.slice(1);
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}
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module.exports = Bing;
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