72 lines
1.8 KiB
Go
Executable File
72 lines
1.8 KiB
Go
Executable File
package ginserver
|
|
|
|
import (
|
|
"github.com/kratisto/mam-contract/internal/utils"
|
|
"math/rand"
|
|
"time"
|
|
|
|
"github.com/gin-gonic/gin"
|
|
)
|
|
|
|
const (
|
|
letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
|
letterIdxBits = 6 // 6 bits to represent a letter index
|
|
letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
|
|
letterIdxMax = 63 / letterIdxBits // # of letter indices fitting in 63 bits
|
|
)
|
|
|
|
var src = rand.NewSource(time.Now().UnixNano())
|
|
|
|
func randStringBytesMaskImprSrc(n int) string {
|
|
b := make([]byte, n)
|
|
// A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
|
|
for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
|
|
if remain == 0 {
|
|
cache, remain = src.Int63(), letterIdxMax
|
|
}
|
|
if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
|
|
b[i] = letterBytes[idx]
|
|
i--
|
|
}
|
|
cache >>= letterIdxBits
|
|
remain--
|
|
}
|
|
|
|
return string(b)
|
|
}
|
|
|
|
func GetLoggerMiddleware() gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
correlationID := c.Request.Header.Get(utils.HeaderNameCorrelationID)
|
|
if correlationID == "" {
|
|
correlationID = randStringBytesMaskImprSrc(30)
|
|
c.Writer.Header().Set(utils.HeaderNameCorrelationID, correlationID)
|
|
}
|
|
|
|
logger := utils.GetLogger()
|
|
logEntry := logger.WithField(utils.HeaderNameCorrelationID, correlationID)
|
|
|
|
c.Set(utils.ContextKeyLogger, logEntry)
|
|
}
|
|
}
|
|
|
|
func GetHTTPLoggerMiddleware() gin.HandlerFunc {
|
|
return func(c *gin.Context) {
|
|
start := time.Now()
|
|
|
|
utils.GetLoggerFromCtx(c).
|
|
WithField("method", c.Request.Method).
|
|
WithField("url", c.Request.RequestURI).
|
|
WithField("from", c.ClientIP()).
|
|
Info("start handling HTTP request")
|
|
|
|
c.Next()
|
|
d := time.Since(start)
|
|
|
|
utils.GetLoggerFromCtx(c).
|
|
WithField("status", c.Writer.Status()).
|
|
WithField("duration", d.String()).
|
|
Info("end handling HTTP request")
|
|
}
|
|
}
|