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annotate Functions/ReadJson.swift @ 0:668fd7e0d121

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author Dennis Concepción Martín <66180929+denniscm190@users.noreply.github.com>
date Tue, 05 Jan 2021 16:43:09 +0000
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Dennis Concepción Martín <66180929+denniscm190@users.noreply.github.com>
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1 //
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2 // ReadJson.swift
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3 // LazyBear
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4 //
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5 // Created by Dennis Concepción Martín on 31/12/20.
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6 //
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7
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8 import SwiftUI
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9
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10 import SwiftUI
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11
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12 // With this function I parse the local JSON file to read it and create a list with its items.
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13 let companiesData: [CompanyData] = load("companies.json")
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14
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15 func load<T: Decodable>(_ filename: String) -> T {
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16 let data: Data
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17
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18 guard let file = Bundle.main.url(forResource: filename, withExtension: nil)
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19 else {
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20 fatalError("Couldn't find \(filename) in main bundle.")
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21 }
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22
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23 do {
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24 data = try Data(contentsOf: file)
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25 } catch {
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26 fatalError("Couldn't load \(filename) from main bundle:\n\(error)")
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27 }
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28
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29 do {
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30 let decoder = JSONDecoder()
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31 return try decoder.decode(T.self, from: data)
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32 } catch {
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33 fatalError("Couldn't parse \(filename) as \(T.self):\n\(error)")
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34 }
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35 }