Extend existing plot data using Python

Hi – I’m new to plotly so excuse my ignorance. I’m creating an IOT application which requires periodically uploaded data into the plotly Chard-Studio cloud and graphing the results. The device itself does not have the cpu / memory capacity to graph the data on-box and although I am able to upload the data but I can’t get the plot fileopt=‘extend’ option to work. Despite trying different syntax, I am only able to create new Grids and Plots but not add data to an existing ones. The code is written in python. Does anyone have a working code snipped available which I can use as guidance? Is this even possible?

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