A function that takes the context, extracts and returns the parameters.

parseRtcParams+snippet.go

func parseRtcParams(c *gin.Context) (channelName, tokentype, uidStr string, role rtctokenbuilder.Role, expireTimestamp uint32, err error) {
  // get param values
  channelName = c.Param("channelName")
  roleStr := c.Param("role")
  tokentype = c.Param("tokentype")
  uidStr = c.Param("uid")
  expireTime := c.DefaultQuery("expiry", "3600")

  if roleStr == "publisher" {
    role = rtctokenbuilder.RolePublisher
  } else {
    role = rtctokenbuilder.RoleSubscriber
  }

  expireTime64, parseErr := strconv.ParseUint(expireTime, 10, 64)
  if parseErr != nil {
    // if string conversion fails return an error
    err = fmt.Errorf("failed to parse expireTime: %s, causing error: %s", expireTime, parseErr)
  }

  // set timestamps
  expireTimeInSeconds := uint32(expireTime64)
  currentTimestamp := uint32(time.Now().UTC().Unix())
  expireTimestamp = currentTimestamp + expireTimeInSeconds

  return channelName, tokentype, uidStr, role, expireTimestamp, err
}