javascript - Extract Yelp's rating -


i have locations.json file store titles, locations (lat, long), , phone numbers. issue i'm facing right might seem trivial others beginner couldn't work way like. want extract ratings yelp's api v3 , add locations.rating array. code have below appends whole response object return yelp, when tried console.log (response.businesses[0].rating) able print out rating. how make return rating? in advance.

var yelpphonesearch = "https://api.yelp.com/v3/businesses/search/phone?phone="; var cors_anywhere_url = 'https://cors-anywhere.herokuapp.com/';  // yelp v3 api doesn't support cors, need use 3rd party proxy service var locations = []; $.getjson('/locations.json', function(data){   (var = 0; < data.length; i++) {     var schools = {};     schools.title = data[i].title;     schools.location = data[i].location;     schools.phone = data[i].phone;     schools.rating = $.ajax({       "async": true,       "crossdomain": true,       "url": cors_anywhere_url + yelpphonesearch + data[i].phone,       "method": "get",       "headers": {         "authorization": "bearer " + yelptoken.access_token,         "cache-control": "public, max-age=31536000",       }     }).done(function(response){       // console.log(response);       var rating = response.businesses[0].rating;       return rating;     });     // push infos locations array     locations.push(schools);   } });

using jquery promises (which regular promises except guaranteed available in old browsers) can rewrite code so

var yelpphonesearch = "https://api.yelp.com/v3/businesses/search/phone?phone="; var cors_anywhere_url = 'https://cors-anywhere.herokuapp.com/';  // yelp v3 api doesn't support cors, need use 3rd party proxy service  $.getjson('/locations.json') .then(function(data){     return $.when.apply($, data.map(function(school) {         return $.ajax({             "async": true,             "crossdomain": true,             "url": cors_anywhere_url + yelpphonesearch + school.phone,             "method": "get",             "headers": {                 "authorization": "bearer " + yelptoken.access_token,                 "cache-control": "public, max-age=31536000",             }         }).then(function(response) {             return {                 title: school.title,                 location: school.location,                 phone: school.phone,                 rating: response.businesses[0].rating             };         });     })); }).then(function() {     var locations = [].slice.call(arguments);     /* here locations array of      {         title,         location,         phone,         rating     }     */ });

note: because of asynchronous nature of $.ajax can't access array of results outside of last .then because asynchronous code asynchronous

for completeness - es2015+ native promises, code be

$.getjson('/locations.json').then(data =>      promise.all(data.map(school =>          $.ajax({             "async": true,             "crossdomain": true,             "url": cors_anywhere_url + yelpphonesearch + school.phone,             "method": "get",             "headers": {                 "authorization": "bearer " + yelptoken.access_token,                 "cache-control": "public, max-age=31536000",             }         }).then(response => ({             title: school.title,             location: school.location,             phone: school.phone,             rating: response.businesses[0].rating         }))     )) ).then(locations => {     /* here locations array of      {         title,         location,         phone,         rating     }     */ });

if need access locations in other parts of code, , assuming code in question not taken function (i.e. vars global scoped)

var yelpphonesearch = "https://api.yelp.com/v3/businesses/search/phone?phone="; var cors_anywhere_url = 'https://cors-anywhere.herokuapp.com/';  // yelp v3 api doesn't support cors, need use 3rd party proxy service  var locations = $.getjson('/locations.json') .then(function(data){     return $.when.apply($, data.map(function(school) {         return $.ajax({             "async": true,             "crossdomain": true,             "url": cors_anywhere_url + yelpphonesearch + school.phone,             "method": "get",             "headers": {                 "authorization": "bearer " + yelptoken.access_token,                 "cache-control": "public, max-age=31536000",             }         }).then(function(response) {             return {                 title: school.title,                 location: school.location,                 phone: school.phone,                 rating: response.businesses[0].rating             };         });     })); }).then(function() {     return [].slice.call(arguments); });

now, in code ever need use locations, you'll need access result using typical promise methodology

locations.then(function(value) {     // in here,  value array of locations });

without seeing how using locations in actual code, may not easy above, because, once deal asynchronous code, need deal properly


Comments

Post a Comment

Popular posts from this blog

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m...
Read more

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

sql server - Why does Linq-to-SQL add unnecessary COUNT()? -

here tables: create table customer ( cid int primary key, name varchar(32) ) create table ord ( oid int primary key, cid int foreign key references customer, address varchar(20) ) here's linq-to-sql statement: var aaa = c in db.customer select new { c, o = c.ord.tolist() }; and here's inexplicable query generated linq-to-sql: select [t0].[cid] [cid], [t0].[name] [name], [t1].[oid] [oid], [t1].[cid] [cid2], [t1].[address] [address], (select count(*) [dbo].[ord] [t2] [t2].[cid] = [t0].[cid]) [value] [dbo].[customer] [t0] left outer join [dbo].[ord] [t1] on [t1].[cid] = [t0].[cid] order [t0].[cid], [t1].[oid] i want understand how rid of count(*) part. it's entirely uncalled for! linq needs count(*) in order determine number of entries returned o = c.ord.tolist() .
Read more