creating monitor dashboard using cloud run service logs

[sgrverma231]

I need assistance in creating a dashboard in GCP. I have one service running on cloud run. When an event triggers we print object in log statement with message. In this message we have few fields with values. We wanted to show the sum of the one value of that field each time it get logged in gcp.

Ex:

{record:{"testRecord":{"id":"815582a0f344179be1d","totalAmount":2.00,"totalvalue":0.50}}}

I want the sum of totalAmount field value each time it logged. Is there a way we can aggregate it and show on the monitoring dasboard via some chart ?