http request get/post

[Damian7546]

Hi,
I try send post request form qt appliacation . I need send request like below:

curl --request POST \
--url http://192.168.1.33:22222/req \
--header 'Content-Type: application/json' \
--header 'deviceType: arf tuf_r1' \
--data '{
"number":"33"
}'

The post function should look like below :

void NetworkWorker::post(QString location)
{
    QJsonObject obj;
    obj["number"] = "33";
    
    QNetworkRequest request =  QNetworkRequest(QUrl(location));
    request.setHeader(QNetworkRequest::ContentTypeHeader, "Content-Type: application/json");
    request.setRawHeader("deviceType", "arf tuf_r1");
    
    QNetworkReply *reply = manager.post(request, QJsonDocument(obj).toJson());
    connect(reply,&QNetworkReply::readyRead,this,&NetworkWorker::_readyRead);
}

does my function in qt correspond to curl notation? I'm not sure about the header .....

[JonB]

@Damian7546

connect(&manager, &QNetworkAccessManager::finished, [](QNetworkReply* reply)->void { reply->deleteLater(); } );

[JonB]

@Damian7546 I am not an expert here, but it looks right to me... :)

[Damian7546]

@JonB Thanks for response, What do you think when I should delete reply object ? It necessery ? If function will be called cyclicly that may be crash my app , without delete reply ?

[JonB]

@Damian7546

connect(&manager, &QNetworkAccessManager::finished, [](QNetworkReply* reply)->void { reply->deleteLater(); } );

[Damian7546]

@JonB said in http request get/post:

connect(&manager, &QNetworkAccessManager::finished, [](QNetworkReply* reply)->void { reply->deleteLater(); } );

In NetworkWorker constructor it may be ?

I get warrning:
Pass a context object as 3rd connect parameter [clazy-connect-3arg-lambda]

[JonB]

@Damian7546 said in http request get/post:

In NetworkWorker constructor it may be ?

No, because reply does not exist there.

Pass a context object as 3rd connect parameter [clazy-connect-3arg-lambda]

Ignore or pass I guess this or maybe &manager as context object for slot to shut it up.

[Damian7546]

@JonB ok, please tell me if the notation below
connect(&manager, &QNetworkAccessManager::finished, this, [&](){reply->deleteLater();});

inside my function where reply object is created ,works the same like yours proposition ?

[JonB]

@Damian7546 Yep, looks fine.

[Damian7546]

@JonB Unfortunatelly when I use my solution my app crashed...

@JonB
This is the samereply : ? - which one i markd on red color:

[JonB]

@Damian7546
Look in the debugger for the reason for the crash. Make sure reply is not null. Make sure you have not deleted it more than once. You may be able to attach to its QObject::destroyed() signal to see when that happens.

[Damian7546]

@JonB Your solution works. ...