how to get a graceful shutdown of an HTTP server by gin web framework
Please see the example: https://github.com/gin-gonic/gin/blob/dfe37ea6f1b9127be4cff4822a1308b4349444e0/examples/graceful-shutdown/graceful-shutdown/server.go#L1-L48
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Please see the example: https://github.com/gin-gonic/gin/blob/dfe37ea6f1b9127be4cff4822a1308b4349444e0/examples/graceful-shutdown/graceful-shutdown/server.go#L1-L48