Pulling JSON data with a 3rd party library swift 4 - json

Question

I am using a 3rd party GitHub library in my Xcode folder. Its giving me access to Yelps API where i would like to get search results within my app. I am successfully downloading converting the data into a JSON string.
But i'm stuck on the logic of Decoding the JSON string so that i can access the actual parameters, such as name, display_address and price. I have use "Decode" before, but never through a 3rd party library. I'm sure its possible and i'm probably just a step or two steps away, but my inexperience is impeding that right now. Any help. Thank you
Here is my function to get the JSON data and below is the response i get
func getYelp() {
let yelpAPIClient = CDYelpAPIClient(apiKey: "MY_API_KEY")
yelpAPIClient.cancelAllPendingAPIRequests()
CDYelpFusionKitManager.shared.apiClient = yelpAPIClient
CDYelpFusionKitManager.shared.apiClient.searchBusinesses(byTerm: "Bars",
location: "Hollywood, California",
latitude: nil,
longitude: nil,
radius: 10000,
categories: [CDYelpBusinessCategoryFilter.bars],
locale: CDYelpLocale.english_unitedStates,
limit: 5,
offset: 0,
sortBy: CDYelpBusinessSortType.distance,
priceTiers: [CDYelpPriceTier.twoDollarSigns],
openNow: true,
openAt: nil,
attributes: nil) { (response) in
if let response = response,
let businesses = response.businesses?.toJSONString(),
businesses.count > 0 {
print(businesses)
}
}
}
Here's the data:
[
{
"name" : "The Know Where Bar",
"coordinates" : {
"latitude" : 34.101480000000002,
"longitude" : -118.3127424
},
"rating" : 4.5,
"price" : "$$",
"review_count" : 170,
"display_phone" : "[phone]",
"location" : {
"state" : "CA",
"address3" : "",
"address1" : "5634 Hollywood Blvd",
"city" : "Los Angeles",
"display_address" : [
"5634 Hollywood Blvd",
"Los Angeles, CA 90028"
],
"zip_code" : "90028",
"country" : "US"
},
"id" : "KOj4TvBuvRLXlBuG2vrZeQ",
"categories" : [
{
"title" : "Cocktail Bars",
"alias" : "cocktailbars"
},
{
"title" : "Jazz & Blues",
"alias" : "jazzandblues"
},
{
"title" : "Pubs",
"alias" : "pubs"
}
],
"transactions" : [
],
"distance" : 2232.7094070718849,
"phone" : "[phone]",
"image_url" : "https:\/\/s3-media3.fl.yelpcdn.com\/bphoto\/Ehus0C-bAoA-6fNbwGpSYA\/o.jpg",
"is_closed" : false,
"url" : "https:\/\/www.yelp.com\/biz\/the-know-where-bar-los-angeles?adjust_creative=xVfmfDi4k3F3Jm9zaJU1CA&utm_campaign=yelp_api_v3&utm_medium=api_v3_business_search&utm_source=xVfmfDi4k3F3Jm9zaJU1CA"
},
{
"name" : "Lost Property Bar",
"coordinates" : {
"latitude" : 34.1019182,
"longitude" : -118.32650390000001
},
"rating" : 4.5,
"price" : "$$",
"review_count" : 143,
"display_phone" : "[phone]",
"location" : {
"state" : "CA",
"address3" : "",
"address1" : "1704 N Vine St",
"city" : "Hollywood",
"address2" : "",
"display_address" : [
"1704 N Vine St",
"Hollywood, CA 90028"
],
"zip_code" : "90028",
"country" : "US"
},
"id" : "CBYwPYYEFbpCefJ4rdiyPw",
"categories" : [
{
"title" : "Pubs",
"alias" : "pubs"
},
{
"title" : "Cocktail Bars",
"alias" : "cocktailbars"
}
],
"transactions" : [
],
"distance" : 1145.5564586880064,
"phone" : "[phone]",
"image_url" : "https:\/\/s3-media1.fl.yelpcdn.com\/bphoto\/pswDPAX_3p73JbPEXwThag\/o.jpg",
"is_closed" : false,
"url" : "https:\/\/www.yelp.com\/biz\/lost-property-bar-hollywood?adjust_creative=xVfmfDi4k3F3Jm9zaJU1CA&utm_campaign=yelp_api_v3&utm_medium=api_v3_business_search&utm_source=xVfmfDi4k3F3Jm9zaJU1CA"
},
{
"name" : "Sunset & Vinyl",
"coordinates" : {
"latitude" : 34.098346200000002,
"longitude" : -118.32679779999999
},
"rating" : 4.5,
"price" : "$$",
"review_count" : 42,
"display_phone" : "[phone]",
"location" : {
"state" : "CA",
"city" : "Los Angeles",
"address1" : "1521 Vine St",
"address2" : "",
"display_address" : [
"1521 Vine St",
"Los Angeles, CA 90028"
],
"zip_code" : "90028",
"country" : "US"
},
"id" : "RKSPAI90ITxbnq1-L_F5NA",
"categories" : [
{
"title" : "Cocktail Bars",
"alias" : "cocktailbars"
},
{
"title" : "Speakeasies",
"alias" : "speakeasies"
},
{
"title" : "Lounges",
"alias" : "lounges"
}
],
"transactions" : [
],
"distance" : 916.67964443671087,
"phone" : "[phone]",
"image_url" : "https:\/\/s3-media3.fl.yelpcdn.com\/bphoto\/w91DLpKmUGuXTF-zauYAWA\/o.jpg",
"is_closed" : false,
"url" : "https:\/\/www.yelp.com\/biz\/sunset-and-vinyl-los-angeles?adjust_creative=xVfmfDi4k3F3Jm9zaJU1CA&utm_campaign=yelp_api_v3&utm_medium=api_v3_business_search&utm_source=xVfmfDi4k3F3Jm9zaJU1CA"
},
{
"name" : "A Simple Bar",
"coordinates" : {
"latitude" : 34.129899999999999,
"longitude" : -118.34882
},
"rating" : 5,
"price" : "$$",
"review_count" : 168,
"display_phone" : "[phone]",
"location" : {
"state" : "CA",
"address3" : "",
"address1" : "3256 Cahuenga Blvd W",
"city" : "Los Angeles",
"display_address" : [
"3256 Cahuenga Blvd W",
"Los Angeles, CA 90068"
],
"zip_code" : "90068",
"country" : "US"
},
"id" : "qD3-5yqSyPiz-VpJtPsnkg",
"categories" : [
{
"title" : "Bars",
"alias" : "bars"
}
],
"transactions" : [
],
"distance" : 4136.336282884502,
"phone" : "[phone]",
"image_url" : "https:\/\/s3-media2.fl.yelpcdn.com\/bphoto\/JYcRYDteiyjLh3dSAj7fCg\/o.jpg",
"is_closed" : false,
"url" : "https:\/\/www.yelp.com\/biz\/a-simple-bar-los-angeles?adjust_creative=xVfmfDi4k3F3Jm9zaJU1CA&utm_campaign=yelp_api_v3&utm_medium=api_v3_business_search&utm_source=xVfmfDi4k3F3Jm9zaJU1CA"
},
{
"name" : "The Woods",
"coordinates" : {
"latitude" : 34.098860000000002,
"longitude" : -118.34478
},
"rating" : 4,
"price" : "$$",
"review_count" : 456,
"display_phone" : "[phone]",
"location" : {
"state" : "CA",
"address3" : "",
"address1" : "1533 N La Brea Ave",
"city" : "Hollywood",
"address2" : "",
"display_address" : [
"1533 N La Brea Ave",
"Hollywood, CA 90028"
],
"zip_code" : "90028",
"country" : "US"
},
"id" : "UEim6Xi_sm78yDUpSfI-OQ",
"categories" : [
{
"title" : "Lounges",
"alias" : "lounges"
}
],
"transactions" : [
],
"distance" : 968.92997694605617,
"phone" : "[phone]",
"image_url" : "https:\/\/s3-media3.fl.yelpcdn.com\/bphoto\/wUQYIlojm2d41ZL38zDMgg\/o.jpg",
"is_closed" : false,
"url" : "https:\/\/www.yelp.com\/biz\/the-woods-hollywood?adjust_creative=xVfmfDi4k3F3Jm9zaJU1CA&utm_campaign=yelp_api_v3&utm_medium=api_v3_business_search&utm_source=xVfmfDi4k3F3Jm9zaJU1CA"
}
]

Answer 1

The 3rd party library already does all the decoding for you. Don't convert the response back to a JSON string.
response.businesses is an array of CDYelpBusiness objects, which are defined like this:
public var id: String?
public var name: String?
public var imageUrl: URL?
public var isClosed: Bool?
public var url: URL?
public var price: String?
public var phone: String?
public var displayPhone: String?
public var photos: [String]?
public var hours: [CDYelpHour]?
public var rating: Double?
public var reviewCount: Int?
public var categories: [CDYelpCategory]?
public var distance: Double?
public var coordinates: CDYelpCoordinates?
public var location: CDYelpLocation?
public var transactions: [String]?
Try iterating over them and accessing their properties like this:
for business in response.businesses {
print(business.name)
}