TwilioEncoding.swift

struct TwilioEncoding: ParameterEncoding {
    static var totallyNormal = TwilioEncoding()
    
    // Twilio requires this weird encoding for arrays
    func encode(_ urlRequest: URLRequestConvertible, with parameters: Parameters?) throws -> URLRequest {
        var request = try URLEncoding().encode(urlRequest, with: parameters)
        if let data = request.httpBody, let string = String(data: data, encoding: .utf8) {
            let replaced = string.replacingOccurrences(of: "%5B%5D=", with: "=")
            request.httpBody = replaced.data(using: .utf8)
        }
        return request
    }
}