QgsFileDownloader Class Reference

QgsFileDownloader is a utility class for downloading files. More...

#include <qgsfiledownloader.h>

Inheritance diagram for QgsFileDownloader:

Public Slots
void	cancelDownload ()
	Call to abort the download and delete this object after the cancellation has been processed.
void	startDownload ()
	Called to start the download.

Signals
void	downloadCanceled ()
	Emitted when the download was canceled by the user.
void	downloadCompleted (const QUrl &url)
	Emitted when the download has completed successfully.
void	downloadError (QStringList errorMessages)
	Emitted when an error makes the download fail.
void	downloadExited ()
	Emitted always when the downloader exits.
void	downloadProgress (qint64 bytesReceived, qint64 bytesTotal)
	Emitted when data are ready to be processed.

Public Member Functions
	QgsFileDownloader (const QUrl &url, const QString &outputFileName, const QString &authcfg=QString(), bool delayStart=false, Qgis::HttpMethod httpMethod=Qgis::HttpMethod::Get, const QByteArray &data=QByteArray())
	QgsFileDownloader.

Protected Member Functions
	~QgsFileDownloader () override

Detailed Description

QgsFileDownloader is a utility class for downloading files.

To use this class, it is necessary to pass the URL and an output file name as arguments to the constructor, the download will start immediately.

The download is asynchronous.

The object will destroy itself when the request completes, errors or is canceled. An optional authentication configuration can be specified.

Note

This class was part of the GUI library from QGIS 2.18.1 until QGIS 3.0

Definition at line 45 of file qgsfiledownloader.h.

Constructor & Destructor Documentation

QgsFileDownloader()

QgsFileDownloader::QgsFileDownloader	(	const QUrl &	url,
		const QString &	outputFileName,
		const QString &	authcfg = QString(),
		bool	delayStart = false,
		Qgis::HttpMethod	httpMethod = Qgis::HttpMethod::Get,
		const QByteArray &	data = QByteArray()
	)

QgsFileDownloader.

Parameters

url	the download URL
outputFileName	file name where the downloaded content will be stored
authcfg	optionally apply this authentication configuration
delayStart	if true, the download will not be commenced immediately and must be triggered by a later call to startDownload(). This can be useful if connections need to be made to the downloader and there's a chance the download will emit signals before these connections have been made.
httpMethod	Method for the HTTP request : GET or POST, since QGIS 3.22
data	If the request is POST, some data can be added, since QGIS 3.22

Definition at line 30 of file qgsfiledownloader.cpp.

~QgsFileDownloader()

QgsFileDownloader::~QgsFileDownloader ( )

overrideprotected

Definition at line 44 of file qgsfiledownloader.cpp.

Member Function Documentation

cancelDownload

void QgsFileDownloader::cancelDownload ( )

slot

Call to abort the download and delete this object after the cancellation has been processed.

See also

downloadCanceled()

Definition at line 102 of file qgsfiledownloader.cpp.

downloadCanceled

void QgsFileDownloader::downloadCanceled ( )

signal

Emitted when the download was canceled by the user.

See also

cancelDownload()

downloadCompleted

void QgsFileDownloader::downloadCompleted ( const QUrl &  url )

signal

Emitted when the download has completed successfully.

downloadError

void QgsFileDownloader::downloadError ( QStringList  errorMessages )

signal

Emitted when an error makes the download fail.

downloadExited

void QgsFileDownloader::downloadExited ( )

signal

Emitted always when the downloader exits.

downloadProgress

void QgsFileDownloader::downloadProgress ( qint64  bytesReceived, qint64  bytesTotal  )

signal

Emitted when data are ready to be processed.

startDownload

void QgsFileDownloader::startDownload ( )

slot

Called to start the download.

Definition at line 53 of file qgsfiledownloader.cpp.

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The documentation for this class was generated from the following files:

• /build/qgis-3.40.0+99sid/src/core/network/qgsfiledownloader.h
• /build/qgis-3.40.0+99sid/src/core/network/qgsfiledownloader.cpp