How POST QList of int to my webservice in qt?

Question

I have an QList of int and I want with post request send it to web service

QList<int> list;
QUrlQuery query ;
QNetworkReply* reply= postRequest(query,"www.myapi.com/api/Book/SaveDigits");//a method that will send POST request
connect(reply,SIGNAL(finished()),this,SLOT(getListFinished()));

but I don't know how add this list of interger to QUrlQuery?

I had before post Class Data like below?

QUrlQuery postData;
postData.addQueryItem("UserName",userName());
postData.addQueryItem("Password",password());

I use aps.net webapi2 for my webservice

 [HttpPost]
 public async Task<IHttpActionResult> SaveDigits(UserInfo userInfo)
 {
 }

above code works for post data as `UserInfo' class but when i want to save List it don't work

 [HttpPost]
 public async Task<IHttpActionResult> SaveDigits(List<int> list)
 {
 }

But how can i send QList<int> ?

my question is how add list of integers to qurlquery? post request is method that will post data — mohsen, Mar 26 '18 at 19:08
I think you are looking for [this](https://stackoverflow.com/questions/2599423/how-can-i-post-data-to-a-url-using-qnetworkaccessmanager) — Mohammad Kanan, Mar 26 '18 at 19:13
but `QUrlQuery` takes `_key_/_value_` item pairs .. lists are not `_key_/_value_` pairs ? — Mohammad Kanan, Mar 26 '18 at 19:23
@MohammadKanan yes,I want this,how do this?how post list of int? — mohsen, Mar 26 '18 at 19:25
Since you want to post integers only, use `QNetworkReply *QNetworkAccessManager::post(const QNetworkRequest &request, const QByteArray &data)` directly. i. e. manager->post(url, data). Convert your QList to QByteArray or use QByteArray instead of QList from begin. — user3606329, Mar 26 '18 at 19:27

score 2 · Accepted Answer · answered Mar 26 '18 at 21:04

2

You can call addQueryItem() with the same key multiple times, the values won't overwrite each others.

Assuming you want the key to be called "digit", you can use something like this:

for(int value : list) {
    query.addQueryItem("digit", QString::number(value));
}

On the server side, most web service frameworks are smart enough to turn the key with multiple values into an array or a list.

answered Mar 26 '18 at 21:04

Aurélien Gâteau

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It don't work.I use asp.net webapi2 for my webservic. – mohsen Mar 27 '18 at 07:27
Ok.now it works.I have changed the parameter of action method as Class now it works – mohsen Mar 27 '18 at 07:37

How POST QList of int to my webservice in qt?

1 Answers1