How to send multiple JSON objects as a stream using alamofire

问题

I want to send multiple different JSON object in a single request, i felt streaming the multiple JSON objects like a file in a single request would be better, so kindly let me know if it is possible, if so kindly give me an idea of how to do it using Alamofire, Below is the formate of the raw body (application/json) data that i want to post

{"a":23214,"b":54674,"c":"aa12234","d":4634}
{"a":32214,"b":324674,"c":"as344234","d":23434}
{"a":567214,"b":89674,"c":"sdf54234","d"34634}

I tried the below code, but it didn't work as the body param is not in the correct format, that's the reason i want to try sending the multiple JSON objects as a stream in a single request, Kindly advice

let SendParams = [
      ["a":1234, "b":2345, "c":3456], ["a":2345, "b":3456, "c":4567], ["a":3456, "b":4567, "c":5678]
    ]
_ = Alamofire.request(url, method: .post, parameters: params, encoding: JSONEncoding, headers: header)

回答1:

JSON format is not correct for your request, JSON is always key-value pair, where key is always String, and value is any Object. In your example need to set key at top level for object of type Array as below:

let SendParams = [
                    "key" :[["a":1234, "b":2345, "c":3456], ["a":2345, "b":3456, "c":4567], ["a":3456, "b":4567, "c":5678]]
                ]
_ = Alamofire.request(url, method: .post, parameters: SendParams, encoding: JSONEncoding.default, headers: headers).responseJSON { (response) in}

Serialise the array and set as httpBody of URLRequest object:

    let url = YOUR_POST_API_URL
    var request = URLRequest(url: URL(string: url)!)
    request.httpMethod = "POST"
    request.setValue("application/json", forHTTPHeaderField: "Content-Type")

    let values = [
        ["a":1234, "b":2345, "c":3456], ["a":2345, "b":3456, "c":4567], ["a":3456, "b":4567, "c":5678]
    ]
    request.httpBody = try! JSONSerialization.data(withJSONObject: values)

    Alamofire.request(request)
        .responseJSON { response in
            // do whatever you want here
            switch response.result {
            case .failure(let error):
                print(error)

                if let data = response.data, let responseString = String(data: data, encoding: .utf8) {
                    print(responseString)
                }
            case .success(let responseObject):
                print(responseObject)
            }
    }

来源：https://stackoverflow.com/questions/48495353/how-to-send-multiple-json-objects-as-a-stream-using-alamofire

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json

xcode

alamofire

swift4