Using a SMA Solar Power API

I have been given API documentation and credentials to use SMA API’s to access data from my Solar Power setup. I have json files presumably with example code - looks like its apache licensed. I can convert the to YAML and include in my my configuration.YAML file with out getting an error. Pretty good start i thought. However i don’t set how i can capture the data returned by these API calls. I presume i have to get them into arrays and use templates to populate sensors. I do not expect a complete answer based upon this poorly described predicament! However if someone could point me in the right direction so i can figure it out that would be great. All i want is total power generation from my solar system so i can turn stuff on for free. I have looked at the API for HA tutorials on youtube, which are sort of helpful.