QRedis provides a modern Qt client library for communicating with a Redis server. The code compiles exclusively with Qt 5, ensuring years of compatibility down the road.
To compile QRedis, the following requirements must be met:
- GCC or Microsoft Visual C++
- Qt 5+
It is not necessary to have Redis installed in order to build the client library. However, you will be unable to run the test suite.
QRedis uses CMake for building the client library, which simplifies the necessary steps across all supported platforms. Assuming you have Qt 5 installed in a location that CMake can find, the client library can be built with the following steps:
-
Open a terminal and navigate to the directory containing the QRedis source code.
-
Create a new directory that will contain the object and binary files produced by the build system and change to that directory:
mkdir build cd build -
Run CMake, which will produce the appropriate Makefile for your platform:
cmake .. -
On Unix-based build systems (including MSYS and Cygwin), run:
makeFor Microsoft Visual C++, run:
nmake
In order to send commands to a Redis server, you need to create an instance of the Client class and connect to the server. For example, if Redis is running on the same server as your application, your code might look something like this:
#include <qredis/client.h>
QRedis::Client client;
client.connectToHost("localhost");
Once the connection is complete, the client will emit the connected() signal. You can then begin executing commands. For example, to send the PING command:
QRedis::Command * command = client.sendCommand("PING");
The sendCommand() method returns a Command *, which provides signals to indicate when the command has completed or when an error occurs.