88 lines
3.4 KiB
Swift
88 lines
3.4 KiB
Swift
// The Swift Programming Language
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// https://docs.swift.org/swift-book
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import Foundation
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public class OpenFoodFactsClient {
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let version: Int = 0
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public var prod: Bool = false
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var baseURL: URL? {
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if prod {
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return URL(string: "https://world.openfoodfacts.org/api/v\(version)")
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} else {
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return URL(string: "https://world.openfoodfacts.net/api/v\(version)")
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}
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}
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public init() {}
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public func getProductByBarcode(_ barcode: String) async throws -> ProductResponse {
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guard let endpoint = baseURL?.appendingPathComponent("product/\(barcode)") else { throw OFFError.invalidURL }
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var request = URLRequest(url: endpoint)
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request.setValue("application/json", forHTTPHeaderField: "accept")
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let (data, response) = try await URLSession.shared.data(for: request)
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guard let response = response as? HTTPURLResponse, response.statusCode == 200 else {
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throw OFFError.invalidResponse
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}
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do {
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return try JSONDecoder().decode(ProductResponse.self, from: data)
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}
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}
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public struct SearchQuery {
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public let additivesTags: String?
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public let allergensTags: String?
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public let brandsTags: String?
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public let categoriesTags: String?
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public let countriesTagsEn: String?
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public let embCodesTags: String?
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public let labelsTags: String?
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public let manufacturingPlacesTags: String?
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public let nutritionGradesTags: String?
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public let originsTags: String?
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public let packagingTagsDe: String?
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public let purchasePlacesTags: String?
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}
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// public func search(_ productName: String, queryParams: SearchQuery? = nil) async throws -> SearchResponse {
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// let qp = Mirror(reflecting: queryParams ?? {})
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// var s: String = "?product_name=\(productName)&"
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// for case let (label?, value) in qp.children {
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// s += label.camelCaseToSnakeCase() + "=" + (value as! String) + "&"
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// }
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// guard let endpoint = baseURL?.appendingPathComponent("search\(s)") else { throw OFFError.invalidURL }
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// var request = URLRequest(url: endpoint)
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// request.setValue("application/json", forHTTPHeaderField: "accept")
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// let (data, response) = try await URLSession.shared.data(for: request)
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// guard let response = response as? HTTPURLResponse, response.statusCode == 200 else {
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// throw OFFError.invalidResponse
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// }
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// do {
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// return try JSONDecoder().decode(SearchResponse.self, from: data)
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// }
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// }
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//https://wiki.openfoodfacts.org/API/Read/Search#Parameters
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public func search(query: PerlSearchQuery) async throws -> SearchResponse {
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let endpoint = URL(string: "https://world.openfoodfacts.org/cgi/search.pl?\(query.makeToRequest())")!
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print(endpoint)
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let request = URLRequest(url: endpoint)
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// request.setValue("application/json", forHTTPHeaderField: "accept")
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let (data, response) = try await URLSession.shared.data(for: request)
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guard let response = response as? HTTPURLResponse, response.statusCode == 200 else {
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throw OFFError.invalidResponse
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}
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do {
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return try JSONDecoder().decode(SearchResponse.self, from: data)
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}
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}
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}
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enum OFFError: Error {
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case invalidURL, invalidResponse
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}
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