GOONetwork is a small library that provides a convenient way to decode JSON from a URL using the decodeJSON method.
- In Xcode select File > Add Packages.
- Enter this project's URL: https://github.com/goojoob/GOONetwork.git
- macOS 12+
- iOS 13.0+
- Xcode 12.0+
To use GOONetwork, import the library in your code:
import Foundation
import GOONetworkThe decodeJSON method is available on the GOONetwork struct. It has the following signature:
public struct GOONetwork {
static public func decodeJSON<T: Decodable>(fromUrl: String) async throws -> T?
}To use decodeJSON, pass the URL of the JSON you want to decode as a string to the fromUrl parameter. The decodeJSON method returns a decoded optional object of type T asynchronously.
struct Product: Decodable {
let title: String
let description: String
}
let jsonUrl = "https://example.com/data.json"
let decodedObject: Product? = try await GOONetwork.decodeJSON(fromUrl: jsonUrl)The decodeJSON method throws an error if something goes wrong during the decoding process. The following errors can be thrown:
NetworkError.urlError: This error is thrown if the provided URL is not valid.NetworkError.responseError: This error is thrown if the HTTP response status code is not 200.NetworkError.dataError: This error is thrown if there is an error getting the data from the provided URL.NetworkError.decodeError: This error is thrown if there is an error decoding the JSON.
You can catch these errors using a catch block in your code. For example:
do {
let decodedObject: Product? = try await GOONetwork.decodeJSON(fromUrl: jsonUrl)
} catch let err as NetworkError {
// Handle the error here
}
This work is licensed under a Creative Commons Attribution 4.0 International license (CC BY 4.0).
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