| --- |
| title: APISIX 变量 |
| keywords: |
| - Apache APISIX |
| - API 网关 |
| - APISIX variable |
| description: 本文介绍了 Apache APISIX 支持的变量。 |
| --- |
| |
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| |
| ## 描述 |
| |
| APISIX 除了支持 [NGINX 变量](http://nginx.org/en/docs/varindex.html)外,自身也提供了一些变量。 |
| |
| ## 变量列表 |
| |
| | 变量名称 | 来源 | 描述 | 示例 | |
| |---------------------|----------- |--------------------------------------------------------------------------------- | ---------------- | |
| | balancer_ip | core | 上游服务器的 IP 地址。 | 192.168.1.2 | |
| | balancer_port | core | 上游服务器的端口。 | 80 | |
| | consumer_name | core | 消费者的名称。 | | |
| | consumer_group_id | core | 消费者所在的组的 ID。 | | |
| | graphql_name | core | GraphQL 的 [operation name](https://graphql.org/learn/queries/#operation-name)。 | HeroComparison | |
| | graphql_operation | core | GraphQL 的操作类型。 | mutation | |
| | graphql_root_fields | core | GraphQL 最高级别的字段。 | ["hero"] | |
| | mqtt_client_id | mqtt-proxy | MQTT 协议中的客户端 ID。 | | |
| | route_id | core | APISIX 路由的 ID。 | | |
| | route_name | core | APISIX 路由的名称。 | | |
| | service_id | core | APISIX 服务的 ID。 | | |
| | service_name | core | APISIX 服务的名称。 | | |
| | redis_cmd_line | Redis | Redis 命令的内容。 | | |
| | resp_body | core | 在 logger 插件中,如果部分插件支持记录响应的 body 信息,比如配置 `include_resp_body: true`,那可以在 log format 中使用该变量。| | |
| | rpc_time | xRPC | 在 RPC 请求级别所花费的时间。 | | |
| |
| 当然,除上述变量外,你也可以创建自定义[变量](./plugin-develop.md#register-custom-variable)。 |