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JayachandraA/reading_local_json_file.swift

Created December 28, 2018 10:47
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  1. JayachandraA created this gist Dec 28, 2018.
    28 changes: 28 additions & 0 deletions reading_local_json_file.swift
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,28 @@

    if let resource = Bundle.main.url(forResource: "US zip (postal) codes", withExtension: "json"),
    let postalCodesData = try? Data(contentsOf: resource, options: Data.ReadingOptions.alwaysMapped){
    do{
    let decodedObject = try JSONDecoder().decode(PostalCodeResponse.self, from: postalCodesData)
    DispatchQueue.main.async { [weak self] in
    // update UI
    }
    }catch let parsingError {
    print(parsingError)
    }
    }



    //helpers
    struct PostalCode: Codable {
    var city: String
    var loc: [Double]
    var pop: Int
    var state: String
    var _id: String
    }


    struct PostalCodeResponse: Codable {
    var codes: [PostalCode]
    }