Data Converter to CSV bar chart attempt failed - need advice

Need Help With My Project
1

Hi

Is it possible to use device datas tream CSV strings in the server side Data Converter decoding the CSV virtual to values that can be
used to display a bar chart with say 12 bars with with each of the CSV values converted to 12 integers for each bar. So the x bar will be months and the Y axis will be the total for each month. Is that possible?

2

Hello @linktek. We did not add read/upload CSV support to Data Converter feature. In theory, you could try writing custom JavaScript code to read a CSV file. But that’s just theoretical.

3

My data converter panel shows the messages in the message panel but the javascript code does not seem to run or active …

I wonder if the js code get executed immeditaly after initiating a data converter or if there is a activation delay on the server side?

My js code looks as follows

function initialize(context) {
const { handler } = context;
handler.useBlynkAuthToken();
}

function handleRequest(context) {
const { request, server } = context;
const { uri, headers, body, isSecure } = request;

// Authenticate the device
const device = server.authenticateDevice(headers[‘Authorization’]);

// Parse incoming JSON payload
const data = JSON.parse(new TextDecoder().decode(body));
const { V190, V191 } = data;

// Update datastreams with new values
device.setDataStreamValue(‘V190’, V190);
device.setDataStreamValue(‘V191’, V191);

return { status: 200, body: ‘Datastreams updated’ };
}

say active but nothing happening even with the
code http code in my ESP32 device