Alamofire: Send JSON with Array of Dictionaries

Question

I have a data structure that looks like this in JSON:

[{
    \"value\": \"1\",
    \"optionId\": \"be69fa23-6eca-4e1b-8c78-c01daaa43c88\"
}, {
    \"value\":         


        

Answer 1

I have the same issue and resolved this way:

I created a new struct implementing the Alamofire's ParameterEncoding protocol:

struct JSONArrayEncoding: ParameterEncoding {
    private let array: [Parameters]

    init(array: [Parameters]) {
        self.array = array
    }

    func encode(_ urlRequest: URLRequestConvertible, with parameters: Parameters?) throws -> URLRequest {
        var urlRequest = try urlRequest.asURLRequest()

        let data = try JSONSerialization.data(withJSONObject: array, options: [])

        if urlRequest.value(forHTTPHeaderField: "Content-Type") == nil {
            urlRequest.setValue("application/json", forHTTPHeaderField: "Content-Type")
        }

        urlRequest.httpBody = data

        return urlRequest
    }
}

Then, I can do this:

let parameters : [Parameters] = bodies.map( { $0.bodyDictionary() })
Alamofire.request(url, method: .post, encoding: JSONArrayEncoding(array: parameters), headers: headers).responseArray { ... }

It worked for me. Hope can help someone else.