CUrl to QNetworkRequest

neosettler

Greetings,

Could anyone help out converting :

curl -i
-u USERNAME
-H 'Content-type: application/json'
-d '{"secret": "YOUR_APP_KEY"}'
https://mysite.com/{YOUR_APPID}/tokens

to a QNetworkRequest?

Here is what a have so far:

QUrl l_url(QString("https:// mysite.com/%1/tokens").arg(APP_ID));
QNetworkRequest l_request(l_url);
l_request.setRawHeader("u", "mymail@gmail.com");
QString l_secret = "{\"secret\": \"" + QByteArray(API_SECRET) + "\"}";
l_request.setRawHeader("d", l_secret.toUtf8());
l_request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");

    QNetworkReply *l_reply = m_QNetworkAccessManager->get(l_request);
connect(l_reply, SIGNAL(finished()), this, SLOT(OnNetworkDataReceived()));

I’m receiving error 401 type so clearly, I’m not getting the expected json data.

Thank you,

eyllanesc

See the curl help:

curl -h

Output

...
 -d, --data <data>   HTTP POST data
...

So you shouldn't use get but post:

QUrl l_url(QString("https:// mysite.com/%1/tokens").arg(APP_ID));
l_url.setUserName("USERNAME");

QNetworkRequest l_request(l_url);
l_request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");

QJsonObject obj;
obj["secret"] = QByteArray(API_SECRET);
QJsonDocument doc(obj);
QByteArray data = doc.toJson();


QNetworkReply *l_reply = m_QNetworkAccessManager->post(l_request, data);

neosettler

Thank you for your input eyllanesc,

I forgot to mentioned that this is supposed to be an HTTP Basic Authentication in order to create a user authentication token.

The response body should looks like this:

{
"token": "AUTHENTICATION_TOKEN",
"refreshToken": "REFRESH_TOKEN"
}

With your suggestion the server replied: Internal Server Error

Are we sure it's a post?

Bonnie

@neosettler
I don't think "u" / "d" would be the correct header name.
Add -v to you curl command to print the request header.
And you should know the method and the header names from that.
[ADDED]
I've done some tests myself, it seems the -u option will encode the username:password to base64 and create a Basic Auth header.
So the password is also needed.
I think you can:

Try @eyllanesc ‘s code again, but change setUserName("USERNAME") to setUserInfo("USERNAME:PASSWORD").
If the above doesn't work, then set the Authorization header yourself like:

l_request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
l_request.setRawHeader("Authorization", "Basic " + QByteArray("USERNAME:PASSWORD").toBase64());
QNetworkReply *l_reply = m_QNetworkAccessManager->post(l_request, "{\"secret\": \"" + QByteArray(API_SECRET) + "\"}");

neosettler

Thank you guys, all your inputs made this challenge a success:

@Bonnie I tried your suggestions and here is the working code:

QUrl l_url(QString("https://mysite.com/%1/tokens").arg(API_ID));
QJsonObject l_secret;
l_secret["secret"] = API_SECRET;
QJsonDocument l_document(l_secret);
QByteArray l_data = l_document.toJson();
QNetworkRequest l_request(l_url);
l_request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
l_request.setRawHeader("Authorization", "Basic " + QByteArray("username:password").toBase64());
QNetworkReply *l_reply = m_QNetworkAccessManager->post(l_request, l_data);
connect(l_reply, SIGNAL(finished()), this, SLOT(OnNetworkDataReceived()));

This is the way,

Thank you so much!
Cheers,

neosettler

I thought I was getting the hang of it but I'm not out of the woods. It seems simple enough but the documentation is rather confusing:
https://quixel.github.io/megascans-api-docs/downloading-assets/

This is an attempt at the next step after getting the AccessToken... and I'm not quite sure how to integrate the following into the url:

POST /downloads
{
"asset": "asset id"
}

here is what I've got so far:

QString l_url = QString("http://downloadf.megascans.se/download/%1?url=https://megascans.se/v1/downloads").arg(l_id);

QJsonObject l_object;
l_object["asset"] = l_id;
QJsonDocument l_document(l_object);
QByteArray l_data = l_document.toJson();

QNetworkRequest l_request(l_url);
QString l_header = "Bearer " + m_AccessToken;
l_request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
l_request.setRawHeader("authorization", l_header.toLocal8Bit());
QNetworkReply *l_reply = m_QNetworkAccessManager->post(l_request, l_data);

server replied: Method Not Allowed.

I'm running out of ideas. Any help would be appreciated.
Thank you,

Bonnie

@neosettler From my understanding, you're messing up two steps.
Step 1: post

QString l_url = QString("https://megascans.se/v1/downloads")
...
QNetworkReply *l_reply = m_QNetworkAccessManager->post(l_request, l_data);

You should read "id" from the response as DOWNLOAD_ID.

Step 2: get

QString l_url = QString("http://downloadf.megascans.se/download/%1?url=https%3A%2F%2Fmegascans.se%2Fv1%2Fdownloads").arg(DOWNLOAD_ID);
...
QNetworkReply *l_reply = m_QNetworkAccessManager->get(l_request);

The response should be a binary zip file.

neosettler

Yet another leap forward, thank you Bonnie.