How to create email using matlab analysis in thingspeak?

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Hi Team

I am creating an email using Matlab Analysis to my Thingspeak channel. Now i am getting this error "

Specify a valid read API key, or make the channel public to avoid specifying the read API key.

". My channel is set to private for now and dont want to change it to public channel. What could be the reason for this error?

Create an email alert with HTTP POST - MATLAB Send Alert[^]

What I have tried:

data = thingSpeakRead(941028, "NumMinutes", 100);
aveTemp = mean(data(:,7));
apiKey = 'PFZRTJ2JYTXW519I';
alertURL = "https://api.thingspeak.com/alerts/send";
options = weboptions("HeaderFields",["ThingSpeak-Alerts-API-Key", apiKey]);
alertBody = sprintf("The temperature is %0.2fF.", aveTemp);

if avg_temperature > 60.0
    webwrite(alertURL, "body", alertBody, "subject", alertSubject, options);
end

Posted 12-Jan-20 21:12pm

gcogco10

Updated 13-Jan-20 2:46am

v2

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Richard MacCutchan 13-Jan-20 4:35am

The message is telling you what you need to do.

gcogco10 13-Jan-20 4:51am

Hi mate, i changed the channel to public and was not getting that error anymore.

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ZurdoDev · Answer 1 · 2020-01-13T02:46:00

Solution 1

As mentioned in the error, you either need to access it with a Read API key or make it public. From the comments, it sounds like you made it public.

Posted 13-Jan-20 2:46am

ZurdoDev

Comments

gcogco10 13-Jan-20 8:47am

@ZurdoDev, I did made it public and I am no longer getting that error.

ZurdoDev 13-Jan-20 8:49am

But that also means it's public now, which you may or may not want. Your decision.