qt rest api
QUrl url;
url.setScheme(“http”);
url.setHost(“api.thingspeak.com”);
url.setPath(“/channels/”+CHNum+”/feeds.json”);
url.setQuery(“api_key=”+RDKey+”&results=10”);
request.setUrl(url);
reply=nwManager->get(request);qt rest api
QUrl url;
url.setScheme(“http”);
url.setHost(“api.thingspeak.com”);
url.setPath(“/channels/”+CHNum+”/feeds.json”);
url.setQuery(“api_key=”+RDKey+”&results=10”);
request.setUrl(url);
reply=nwManager->get(request);qt rest api
QUrl myurl;
myurl.setScheme(“http”); //https also applicable
myurl.setHost(“api.thingspeak.com”);
myurl.setPath(“/update.json”);qt rest api
QObject::connect(restclient, SIGNAL(finished(QNetworkReply*)), this, SLOT(replyFinished(QNetworkReply *)));qt rest api
QUrlQuery querystr;
querystr.addQueryItem(“api_key”,WRKey);
querystr.addQueryItem(“field1”,”25”);
querystr.addQueryItem(“field2”,”72”);
querystr.addQueryItem(“field3”,”900”);
myurl.setScheme(“https”);
myurl.setHost(“api.thingspeak.com”);
myurl.setPath(“/update”);
myurl.setQuery(querystr);
request.setUrl(myurl);
reply = restclient->get(myurl);
qDebug() << reply->readAll();qt rest api
{
“api_key”:”XXXXXXXX XXXXXXXX”,
“field1”:”25”,
“field2”:”72”,
“field3”:”900”
}qt rest api
QJsonDocument jsdoc;
jsdoc = QJsonDocument::fromJson(reply->readAll());
QJsonObject jsobj = jsdoc.object();
QJsonArray jsarr = jsobj[“feeds”].toArray();
foreach (const QJsonValue &value, jsarr) {
QJsonObject jsob = value.toObject();
qDebug() << jsob[“entry_id”].toInt();
qDebug() << jsob[“field1”].toString();
qDebug() << jsob[“field2”].toString();
qDebug() << jsob[“field3”].toString();
qDebug() << jsob[“created_at”].toString();
}
reply->deleteLater();qt rest api
QNetworkRequest request;
request.setUrl(myurl);
request.setHeader(QNetworkRequest::ContentTypeHeader,
”application/json”);qt rest api
//Prepare querystr similar to above steps
request.setHeader(QNetworkRequest::ContentTypeHeader, “application/x-www-form-urlencoded”);
QByteArray postdata = Qvariant(querystr).toByteArray();
restclient->post(myurl,postdata);qt rest api
QNetworkAccessManager *restclient; //in class
restclient = new QNetworkAccessManager(this); //constructor
QNetworkReply *reply = restclient->post(request,payload);
qDebug() << reply->readAll();qt rest api
QVariantMap feed;
feed.insert(“api_key”,WRKey);
feed.insert(“field1”,QVariant(tval).toString());
feed.insert(“field2”,QVariant(hval).toString());
feed.insert(“field3”,Qvariant(pval).toString());
QByteArray payload=QJsonDocument::fromVariant(feed).toJson();Copyright © 2021 Codeinu
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