context add RWMutex for key set and get Goroutine safe

context.go

@@ -16,6 +16,7 @@ import (
 	"net/url"
 	"os"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/gin-contrib/sse"
@@ -55,6 +56,9 @@ type Context struct {
 	// Keys is a key/value pair exclusively for the context of each request.
 	Keys map[string]interface{}
 
+	//  RWMutex for Keys Set and Get Goroutine safe
+	m sync.RWMutex
+
 	// Errors is a list of errors attached to all the handlers/middlewares who used this context.
 	Errors errorMsgs
 
@@ -219,6 +223,8 @@ func (c *Context) Error(err error) *Error {
 // Set is used to store a new key/value pair exclusively for this context.
 // It also lazy initializes  c.Keys if it was not used previously.
 func (c *Context) Set(key string, value interface{}) {
+	c.m.Lock()
+	defer c.m.Unlock()
 	if c.Keys == nil {
 		c.Keys = make(map[string]interface{})
 	}
@@ -228,6 +234,8 @@ func (c *Context) Set(key string, value interface{}) {
 // Get returns the value for the given key, ie: (value, true).
 // If the value does not exists it returns (nil, false)
 func (c *Context) Get(key string) (value interface{}, exists bool) {
+	c.m.RLock()
+	defer c.m.RUnlock()
 	value, exists = c.Keys[key]
 	return
 }