util

func DefaultRedisClient ¶

func DefaultRedisClient() (client *redis.Client, err error)

func GinResJSON ¶

func GinResJSON(c *gin.Context, bts []byte)

func IPFreqLimit1 ¶

func IPFreqLimit1(client *redis.Client, dur time.Duration, number int,
	param func(*gin.Context) string) (
	limiter func(*gin.Context), err error)

IPFreqLimit1 generate ip access frequence limiter middleware with redis set, internal error with redis will response 500 to client, overrun limit will response 429

@Parameter  client   redis client to user, can't be nil
@Parameter  dur      record and count ip access in duration, must greater or equal time.Second
@Parameter  number   maxmium access number, must greater than 0
@Parameter  param    function to generate identifier string as suffix
@return     limiter  gin middleware
@return     err      erorr of failed to create middleware

func IPFreqLimit2 ¶

func IPFreqLimit2(client *redis.Client, dur time.Duration, number int,
	param func(*gin.Context) string) (
	limiter func(*gin.Context), err error)

IPFreqLimit2 generate ip access frequence limiter middleware with redis hset, internal error with redis will response 500 to client, overrun limit will response 429

@Parameter  client   redis client to user, can't be nil
@Parameter  dur      record and count ip access in duration, must greater or equal time.Second
@Parameter  number   maxmium access number, must greater than 0
@Parameter  param    function to generate identifier string as suffix
@Return     limiter  gin middleware
@Return     err      erorr of failed to create middleware

func RedisCache ¶

func RedisCache(client *redis.Client, rk string,
	fn func() (interface{}, error), dk string, dur time.Duration) (
	bts []byte, code int, err error)