Astarte Stream Qt5 Test

Astarte Qt5 SDK based data stream test.

Requirements

• Astarte Qt5 SDK and Qt5 devel tools

Getting started

Choosing a Device ID

A Base64 url-encoded uuid should be used, you can use astartectl to generate one:

astartectl utils device-id generate-random

Configuring the application

Create a configuration directory using the given template (astarte-device-DEVICE_ID_HERE-conf), substituting the previously generated device ID to DEVICE_ID_HERE. Make sure to have your realm's private key at hand. Then customize the following fields:

• pairingJwt: If you don't already have an Astarte pairing JWT, you can generate one with: astartectl utils gen-jwt pairing -k <realm_private_key>
• pairingUrl: the URL of the Astarte Pairing endpoint. It should be something like https://<api url>/pairing.
• realm: the name of the Astarte realm.
• persistencyDir: When using Docker, allows to save the container's persistency through a Docker Volume.

Build and run

Build the application using following commands:

$ qmake .
$ make

Then run the application with:

./stream-qt5-test --device <your device ID>

Several options are available:

• --device allows to set the device ID;
• --function allows to choose the data generation function (one between sin, noisesin, randomspikessin, saw, rect, sinc, random, x and a default one);
• --interval allows to set the sending interval;
• --scale allows to scale the generated result;
• --interface allows to specify the Astarte interface installed on the device;
• --path allows to specify the mapping endpoint for the interface.

Using the Docker image

Make sure to have astartectl installed and your realm's private key at hand.

Pull the image with:

docker pull astarte/astarte-stream-qt5-test:1.0.4

If you are running the container on a different machine than your Astarte instance, you can invoke the application with:

docker run -e "DEVICE_ID=$(astartectl utils device-id generate-random)" -e "PAIRING_URL=<your pairing url>" -e "REALM=<realm name>" -e "PAIRING_JWT=$(astartectl utils gen-jwt pairing -k <realm private key>)" -e astarte/astarte-stream-qt5-test:1.0.4

Otherwise, to make localhost work, you need to specify an additional docker option:

docker run --net="host" -e "DEVICE_ID=$(astartectl utils device-id generate-random)" -e "PAIRING_URL=http://localhost:4003" -e "REALM=<realm name>" -e "PAIRING_JWT=$(astartectl utils gen-jwt pairing -k <realm private key>)" -e astarte/astarte-stream-qt5-test:1.0.4

Both commands will generate a random datastream from a brand new, random Device ID.

You can have the same Device ID send longer streams of data by saving the container's persistency through a Docker Volume. If you wish to do so, simply add -v /persistency:<your persistency path> to your docker run invocation.

You can refer to the previous section for more details on which variables (function, interface, etc...) can be passed to the container.