{"id":20078,"date":"2022-11-08T16:26:41","date_gmt":"2022-11-08T10:56:41","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-how-to-encode-this-json-reply-from-food-api\/"},"modified":"2022-11-08T16:26:41","modified_gmt":"2022-11-08T10:56:41","slug":"solved-how-to-encode-this-json-reply-from-food-api","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-how-to-encode-this-json-reply-from-food-api\/","title":{"rendered":"[Solved] how to encode this JSON reply from Food API"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

\n
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<\/div>\n
\n
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You have some response and this response’s value is most likely of type Data<\/code>, so you need to decode<\/strong> it to some Swift type.<\/p>\n

\n

Since Swift 4 you can easily use Decodable<\/code> protocol for decoding Data<\/code> to your custom model conforming to this protocol.<\/p>\n

So let’s create simple struct for simple json<\/p>\n

Json:<\/p>\n

let data = Data(\"\"\"\n{\n    \"property\": \"someName\"\n}\n\"\"\".utf8)\n<\/code><\/pre>\n
Model:<\/p>\n
struct Model: Decodable {\n    let property: String\n}\n<\/code><\/pre>\n
\n
Each property also has to be Decodable<\/code>, so if you have different decodable struct, you can use it as property’s type and you can even use it for array of this type, or for example some dictionary<\/p>\n
Json:<\/p>\n
let data = Data(\"\"\"\n{\n    \"items\": [\n        { \"title\": \"name1\"\u00a0},\n        { \"title\": \"name2\" },\n        { \"title\": \"name3\" }\n    ]\n}\n\"\"\".utf8)\n<\/code><\/pre>\n
Model:<\/p>\n
struct Model: Decodable {\n    let items: [Item]\n}\n\nstruct Item: Decodable {\n    let title: String\n}\n<\/code><\/pre>\n
Do you see that pattern? So try to implement it in your case by yourself.<\/p>\n
\n
Now the last part: decoding. For decoding Data<\/code> you can simply use JSONDecoder<\/code><\/a> and its decode<\/code> method. Just specify type of output and pass Data<\/code> object<\/p>\n
Note that decoding can throw error, so you should put it to do-try-catch block<\/p>\n
guard let data = response.result.value else { ... }\n\ndo {\n    response.result.value!\n    let models = try JSONDecoder().decode([Model].self, from: data)\n} catch { print(error) }\n<\/code><\/pre>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            <\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved how to encode this JSON reply from Food API <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] You have some response and this response’s value is most likely of type Data, so you need to decode it to some Swift type. Since Swift 4 you can easily use Decodable protocol for decoding Data to your custom model conforming to this protocol. So let’s create simple struct for simple json Json: let … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[356,522],"class_list":["post-20078","post","type-post","status-publish","format-standard","hentry","category-solved","tag-json","tag-swift"],"yoast_head":"\n[Solved] how to encode this JSON reply from Food API - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-how-to-encode-this-json-reply-from-food-api\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] how to encode this JSON reply from Food API - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You have some response and this response’s value is most likely of type Data, so you need to decode it to some Swift type. 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