andr3a88

import UIKit

/// A type eraser to erase the concrete types of your encodable objects
struct AnyEncodable: Encodable {
    private let encodeClosure: (Encoder) throws -> Void

    init<T: Encodable>(_ value: T) {
        encodeClosure = { encoder in
            try value.encode(to: encoder)
        }

andr3a88

/// Creates an AWS AppSync-compatible RequestBody `payload` for subscriptions.
/// This is necessary due to the different payload used by Apollo
/// Credit to:
/// - https://community.apollographql.com/t/using-apollo-with-appsync-directly-on-ios/324/4
/// - https://docs.aws.amazon.com/appsync/latest/devguide/real-time-websocket-client.html#header-parameter-format-based-on-appsync-api-authorization-mode
/// - https://github.com/lingfengmarskey/NetworkSample
///
/// AppSync payload:
/// {
///    "id": "subscriptionId",