I don't have a "React" option when doing #16 on Lab 4 in the 2.5 hour class on Observability Fundamentals. I thought I followed the instructions, but don't remember starting React. What did I miss?
the React part of the application runs on the browser and is served by the Node.js backend that you started on step 14.
Please check if you have configured the apm_server_js setting in /home/elastic/petclinic/frontend/config.js to use the Public DNS of your lab machine, otherwise the RUM agent cannot send information from the client's browser to the APM Server that is running on your lab instance. These are the steps 12 and 13.
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