Covid-19 Twitter Sentiment Graph
The sentiment being expressed about Covid-19 plotted on a line graph over time.
This is a generic Twitter sentiment graph really and any topics can be selected as the source. The sentiment is shown averaged over 20, 100 and 1000 Tweets on the same graph for comparison. This has been created using the Twitter Stream node. You'll need a free Twitter developer account, and you'll need to set up a free Twitter application to obtain credentials needed by the Twitter Stream node. The standard twitter node can also be used but the json data format is different I believe so the flow will have to be updated accordingly.
Note: This may just be me, but the Twitter Steam node seems to be a bit tricky sometimes, and really doesn't like being deployed without valid credentials. I've had it crash NodeRED a number of times if deployed with blank credentials. To fix I had to change directory to ~/.node-red and remove the "twit" folder (and therefore the node) and start again.
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