Statistics only contains system stats

[tnqzh123]

I want to get the bandwidth usage data of each user, but I can only get system bandwidth stats by v2ray api stats.

Here's my configuration:

Click here to show configuration

{
  "log": {
    "access": "/var/log/v2ray/access.log",
    "error": "/var/log/v2ray/error.log",
    "loglevel": "debug"
  },
  "stats": { },
  "api": {
    "tag": "api",
    "services": [
      "HandlerService",
      "StatsService"
    ]
  },
  "policy": {
    "level": {
      "0": {
	"statsUserUplink": true,
	"statsUserDownlink": true
      }
    },
    "system": {
      "statsInboundUplink": true,
      "statsInboundDownlink": true,
      "statsOutboundUplink": true,
      "statsOutboundDownlink": true
    }
  },
  "inbounds": [{
    "tag": "WebSocket",
    "port": 10086,
    "protocol": "vmess",
    "listen": "127.0.0.1",
    "settings": {
      "clients": [
	{
          "email": "Alice",
	  "id": "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa",
	  "level": 0,
	  "alterId": 0
	}
      ]
    },
    "streamSettings": {
      "network": "ws",
      "wsSettings": {
        "path": "/"
      }
    }
  },
  {
    "port": 8080,
    "listen": "127.0.0.1",
    "protocol": "dokodemo-door",
    "settings": {
      "address": "127.0.0.1",
      "networks": [
        "TCP"
      ]
    },
    "tag": "in_api"
  }],
  "outbounds": [{
    "protocol": "freedom",
    "settings": {},
    "tag": "freedom"
  },
  {
    "protocol": "blackhole",
    "settings": {},
    "tag": "blocked"
  }],
  "routing": {
    "rules": [
      {
        "type": "field",
	"inboundTag": [ "in_api" ],
	"outboundTag": "api"
      }
    ],
    "domainStrategy": "AsIs"
  }
}

and v2ray api stats output:

    Value       Name
1   53.56KB     inbound>>>WebSocket>>>traffic>>>downlink
2   27.09KB     inbound>>>WebSocket>>>traffic>>>uplink
3   487.00B     inbound>>>in_api>>>traffic>>>downlink
4   346.00B     inbound>>>in_api>>>traffic>>>uplink
5   0           outbound>>>blocked>>>traffic>>>downlink
6   0           outbound>>>blocked>>>traffic>>>uplink
7   50.72KB     outbound>>>freedom>>>traffic>>>downlink
8   24.35KB     outbound>>>freedom>>>traffic>>>uplink

Total: 156.55KB

I tried v2ray api stats StatsService.QueryStats 'pattern: "" reset: false', but it returns nothing.

How can I get bandwidth usage statistics by user?

I use V2Fly v5.16.1.