Scheduling things on a Tesla using Azure pt. 3; the Tesla API

In the previous post we took a look at how the initial just-for-my-own-car implementation was refactored into a version that supported many cars using a database instead of hardcoded values. It also showed that the LogicApp based implementation lost its merrits, and everything was moved into Java code. In this part we’ll take a look at the Tesla API that is used to make the car do things.

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Going electric; scheduling the AC on a Tesla

The last few blogs had a “not my usual content” text here, but this one is about software development. As it turns out Tesla is missing a -for me- very critical piece of functionality; being able to start the airconditioning (AC) system at a certain time. It is possible to turn on the AC immediately via the app using the fan icon (see the image below), but not automatically at 06:00, while I’m still counting sheep in my bed.

TeslaAppFirstScreen

But to my amazement, every Tesla car is accessible via the internet through a REST API. This API is what the Tesla app uses to access the vehicle. Using this API is not officially supported, but Tesla does not seem to mind people accessing it.

Okay! That is interesting! I’m a software engineer, I can handle a REST API…

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