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middleware.go
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/
middleware.go
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package main
import (
"log"
"github.com/tr4cks/power/modules"
"github.com/gin-gonic/gin"
)
func ServerStateMiddleware(module modules.Module, logErr *log.Logger) gin.HandlerFunc {
return func(c *gin.Context) {
powerState, ledState := module.State()
if powerState.Err != nil {
logErr.Printf("Failed to retrieve POWER state: %s", powerState.Err)
}
if ledState.Err != nil {
logErr.Printf("Failed to retrieve LED state: %s", ledState.Err)
}
c.Set("power", powerState.Value)
c.Set("led", ledState.Value)
c.Next()
}
}
func ConditionalMiddleware(predicate func(*gin.Context) bool, middleware gin.HandlerFunc) gin.HandlerFunc {
return func(c *gin.Context) {
if predicate(c) {
middleware(c)
} else {
c.Next()
}
}
}