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|
package middleware
import (
"finance/backend/internal/logger"
"net/http"
"time"
"github.com/gin-gonic/gin"
)
// Logger is middleware for logging HTTP requests
func Logger(log *logger.Logger) gin.HandlerFunc {
return func(c *gin.Context) {
// Start timer
start := time.Now()
// Process request
c.Next()
// Calculate latency
latency := time.Since(start)
// Log request
log.LogRequest(
c.Request.Method,
c.Request.URL.Path,
c.ClientIP(),
c.Request.UserAgent(),
c.Writer.Status(),
latency,
)
}
}
// ErrorHandler is middleware for handling errors
func ErrorHandler(log *logger.Logger) gin.HandlerFunc {
return func(c *gin.Context) {
c.Next()
// Handle errors after request is processed
if len(c.Errors) > 0 {
for _, e := range c.Errors {
log.Error(e.Err)
}
// Return last error to client if response wasn't already sent
if !c.Writer.Written() {
c.JSON(http.StatusInternalServerError, gin.H{
"error": c.Errors.Last().Error(),
})
}
}
}
}
// NotFoundHandler handles 404 errors
func NotFoundHandler(c *gin.Context) {
c.JSON(http.StatusNotFound, gin.H{
"error": "Resource not found",
})
}
// MethodNotAllowedHandler handles 405 errors
func MethodNotAllowedHandler(c *gin.Context) {
c.JSON(http.StatusMethodNotAllowed, gin.H{
"error": "Method not allowed",
})
}
// RecoveryWithLogger recovers from any panics and logs errors
func RecoveryWithLogger(log *logger.Logger) gin.HandlerFunc {
return func(c *gin.Context) {
defer func() {
if err := recover(); err != nil {
log.Errorf("Panic recovered: %v", err)
c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{
"error": "Internal server error",
})
}
}()
c.Next()
}
}
|
