I want to get realtime measurement using supported measurements in angular using web sdk
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The tutorial application has some samples on how to use realtime within angular. You can scaffold the tutorial application using:
c8ycli new my-app tutorial as described multiple times within the documentation: Tutorials - Cumulocity IoT Guides
Cumulocity IoT Web Development Tutorial - Part 3: Query data from Cumulocity IoT - This tutorial might help you.