Open API Guide

Nacos 2.X is compatible with Nacos 1.X OpenAPI, please refer to the document Nacos1.X OpenAPI.

Attension: OpenAPIs which do not specify a supported version, will be supported since 2.2.0.

Documentation Conventions
- API unified return body format
- API error code summary
Configuration Management
Service Discovery
Namespace
Cluster
Connection Load Management

Documentation Conventions

API unified return body format

In Nacos 2.X, the response to all interface requests is a return body of type json, which has the same format

{
  "code": 0,
  "message": "success",
  "data": {}
}

The meanings of the fields in the return body are shown in the following table

name	type	description
`code`	`int`	Error code，`0` means the execution succeeded, non-`0` means the execution failed in one of the cases
`message`	`String`	Error code prompt message, execution success as "`success`"
`data`	`Any`	Return data, detailed error message in case of execution failure

Since the code field is the same as the message field in case of successful execution, only the data field of the returned data will be introduced in the subsequent introduction of the returned results of the interface

API error code summary

The error codes and corresponding prompt messages in the return body of the API interface are summarized in the following table

Error Code	message	meaning
`0`	`success`	Successful execution
`10000`	`parameter missing`	Missing parameters
`10001`	`access denied`	Access Denied
`10002`	`data access error`	Data access error
`20001`	`'tenant' parameter error`	`tenant` parameter error
`20002`	`parameter validate error`	Parameter validation error
`20003`	`MediaType Error`	`MediaType` error for HTTP requests
`20004`	`resource not found`	Resource not found
`20005`	`resource conflict`	Resource access conflicts
`20006`	`config listener is null`	Listening configuration is empty
`20007`	`config listener error`	Listening configuration error
`20008`	`invalid dataId`	Invalid `dataId` (authentication failure)
`20009`	`parameter mismatch`	Request parameter mismatch
`21000`	`service name error`	`serviceName` error
`21001`	`weight error`	`weight` error
`21002`	`instance metadata error`	Instance `metadata` error
`21003`	`instance not found`	`instance` not found
`21004`	`instance error`	`instance` error
`21005`	`service metadata error`	Service `metadata` error
`21006`	`selector error`	`selector` error
`21007`	`service already exist`	Service already exists
`21008`	`service not exist`	Service does not exist
`21009`	`service delete failure`	Service instance exists, service deletion failed
`21010`	`healthy param miss`	`healthy` parameter miss
`21011`	`health check still running`	Health check is still running
`22000`	`illegal namespace`	`namespace` is illegal
`22001`	`namespace not exist`	Namespace does not exist
`22002`	`namespace already exist`	Namespace already exists
`23000`	`illegal state`	`state` is illegal
`23001`	`node info error`	Node information error
`23002`	`node down failure`	Node offline operation error
...	...	...
30000	`server error`	Other internal errors

Configuration Management

Get configuration

Description

Get the specified configuration

Request Method

GET

Request URL

/nacos/v2/cs/config

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace, default is `public`
`group`	`String`	Y	Config group name
`dataId`	`String`	Y	Config name
`tag`	`String`	N	Tag

Return Data

Parameter	Type	Description
`data`	`String`	Config content

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/cs/config?dataId=nacos.example&group=DEFAULT_GROUP&namespaceId=public'

Response Example

{
      "code": 0,
      "message": "success",
      "data": "contentTest"
}

Publish configuration

Description

Publish the specified configuration

Update the configuration when it already exists

Request Method

POST

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/cs/config

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace, default is `public`
`group`	`String`	Y	Config group
`dataId`	`String`	Y	Config name
`content`	`String`	Y	Config content
`tag`	`String`	N	Tag
`appName`	`String`	N	Application name
`srcUser`	`String`	N	Source user
`configTags`	`String`	N	Configure Tag list, can be multiple, comma separated
`desc`	`String`	N	Config description
`use`	`String`	N	-
`effect`	`String`	N	-
`type`	`String`	N	Config type
`schema`	`String`	N	-

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'dataId=nacos.example' \
  -d 'group=DEFAULT_GROUP' \
  -d 'namespaceId=public' \
  -d 'content=contentTest' \
  -X POST 'http://127.0.0.1:8848/nacos/v2/cs/config'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Delete configuration

Description

Delete the specified configuration

Request Method

DELETE

Request URL

/nacos/v2/cs/config

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace, default is `public`
`group`	`String`	Y	Config group name
`dataId`	`String`	Y	Config name
`tag`	`String`	N	Tag

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -X DELETE 'http://127.0.0.1:8848/nacos/v2/cs/config?dataId=nacos.example&group=DEFAULT_GROUP&namespaceId=public'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Query list of history configuration

Description

Get a list of historical versions of the specified configuration

Request Method

GET

Request URL

/nacos/v2/cs/history/list

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace, default is `public`
`group`	`String`	Y	Config group name
`dataId`	`String`	Y	Config name
`pageNo`	`int`	N	Current page, default is `1`
`pageSize`	`int`	N	Number of page entries, default is `100`, maximum is `500`

Return Data

Parameter	Type	Description
`data`	`Object`	Paging Search Results
`data.totalCount`	`int`	Total
`data.pageNumber`	`int`	Current page
`data.pagesAvailable`	`int`	Total number of pages
`data.pageItems`	`Object[]`	List of historical configuration items, refer to Historical configuration item

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/cs/history/list?dataId=nacos.example&group=com.alibaba.nacos&namespaceId='

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"totalCount": 1,
		"pageNumber": 1,
		"pagesAvailable": 1,
		"pageItems": [
			{
                "id": "203",
                "lastId": -1,
                "dataId": "nacos.example",
                "group": "com.alibaba.nacos",
                "tenant": "",
                "appName": "",
                "md5": "9f67e6977b100e00cab385a75597db58",
  				"content": "contentTest",
                "srcIp": "0:0:0:0:0:0:0:1",
                "srcUser": null,
                "opType": "I",
                "createdTime": "2010-05-04T16:00:00.000+0000",
                "lastModifiedTime": "2020-12-05T01:48:03.380+0000"
			}
		]
	}
}

Query the history details of the configuration

Description

Get the historical configuration of the specified version

Request Method

GET

Request URL

/nacos/v2/cs/history

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace, default is `public`
`group`	`String`	Y	Config group name
`dataId`	`String`	Y	Config name
`nid`	`long`	Y	History configuration id

Return Data

Parameter	Type	Description
`data`	`Object`	Historical configuration item
`data.id`	`String`	Config `id`
`data.lastId`	`int`
`data.dataId`	`String`	Config name
`data.group`	`String`	config group
`data.tenant`	`String`	Tenant (namespace)
`data.appName`	`String`	Application name
`data.md5`	`String`	The md5 value of config content
`data.content`	`String`	Config content
`data.srcIp`	`String`	Source ip
`data.srcUser`	`String`	Source user
`data.opType`	`String`	Operator type
`data.createdTime`	`String`	Creation time
`data.lastModifiedTime`	`String`	Last modified time
`data.encryptedDataKey`	`String`

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/cs/history?dataId=nacos.example&group=com.alibaba.nacos&namespaceId=&nid=203'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
        "id": "203",
        "lastId": -1,
        "dataId": "nacos.example",
        "group": "com.alibaba.nacos",
        "tenant": "",
        "appName": "",
        "md5": "9f67e6977b100e00cab385a75597db58",
  		"content": "contentTest",
        "srcIp": "0:0:0:0:0:0:0:1",
        "srcUser": null,
        "opType": "I",
        "createdTime": "2010-05-04T16:00:00.000+0000",
        "lastModifiedTime": "2020-12-05T01:48:03.380+0000"
	}
}

Query the previous version of the configuration

Description

Get the previous version of the specified configuration

Request Method

GET

Request URL

/nacos/v2/cs/history/previous

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace, default is `public`
`group`	`String`	Y	Config group name
`dataId`	`String`	Y	Config name
`id`	`long`	Y	config id

Return Data

Parameter	Type	Description
`data`	`Object`	Historical configuration item, refer to Historical configuration item

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/cs/history/previous?id=309135486247505920&dataId=nacos.example&group=com.alibaba.nacos&namespaceId='

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
        "id": "203",
        "lastId": -1,
        "dataId": "nacos.example",
        "group": "com.alibaba.nacos",
        "tenant": "",
        "appName": "",
        "md5": "9f67e6977b100e00cab385a75597db58",
  		"content": "contentTest",
        "srcIp": "0:0:0:0:0:0:0:1",
        "srcUser": null,
        "opType": "I",
        "createdTime": "2010-05-04T16:00:00.000+0000",
        "lastModifiedTime": "2020-12-05T01:48:03.380+0000"
	}
}

Query the list of configurations under the specified namespace

Description

Get the list of configurations under the specified namespace

Request Method

GET

Request URL

/nacos/v2/cs/history/configs

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	Y	Namespace

Return Data

Parameter	Type	Description
`data`	`Object[]`	Config list
`data.id`	`String`	config `id`
`data.dataId`	`String`	Config name
`data.group`	`String`	Config group
`data.content`	`String`	Config content
`data.md5`	`String`	the md5 value of config content
`data.encryptedDataKey`	`String`
`data.tenant`	`String`	Tenant (namespace)
`data.appName`	`String`	Application name
`data.type`	`String`	config file Type
`data.lastModified`	`long`	Last modified time

Only the dataId, group, tenant, appName, type fields are valid for the configuration information in the returned data, the other fields are default values

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/cs/history/configs?namespaceId='

Response Example

{
	"code": 0,
	"message": "success",
	"data": [
		{
			"id": "0",
			"dataId": "nacos.example",
        	"group": "com.alibaba.nacos",
			"content": null,
			"md5": null,
			"encryptedDataKey": null,
			"tenant": "",
			"appName": "",
			"type": "yaml",
			"lastModified": 0
		}
    ]
}

Service Discovery

Register instance

Description

Request Method

POST

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/ns/instance

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`ip`	`String`	Y	`IP` address
`port`	`int`	Y	Port number
`clusterName`	`String`	N	Cluster name, default is `DEFAULT`
`healthy`	`boolean`	N	Whether to find only healthy instances, default is `true`
`weight`	`double`	N	Instance weights, default is `1.0`
`enabled`	`boolean`	N	Enable or not, default is `true`
`metadata`	`JSON format String`	N	Instance metadata
`ephemeral`	`boolean`	N	Whether it is a temporary instance

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'serviceName=test_service' \
  -d 'ip=127.0.0.1' \
  -d 'port=8090' \
  -d 'weight=0.9' \
  -d 'ephemeral=true' \
  -X POST 'http://127.0.0.1:8848/nacos/v2/ns/instance'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Deregister instance

Description

Deregister a specified instance

Request Method

DELETE

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/ns/instance

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`ip`	`String`	Y	`IP` address
`port`	`int`	Y	Port number
`clusterName`	`String`	N	Cluster name, default is `DEFAULT`
`healthy`	`boolean`	N	Whether to find only healthy instances, default is `true`
`weight`	`double`	N	Instance weights, default is `1.0`
`enabled`	`boolean`	N	Enable or not, default is `true`
`metadata`	`JSON format String`	N	Instance metadata
`ephemeral`	`boolean`	N	Whether it is a temporary instance

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'serviceName=test_service' \
  -d 'ip=127.0.0.1' \
  -d 'port=8090' \
  -d 'weight=0.9' \
  -d 'ephemeral=true' \
  -X DELETE 'http://127.0.0.1:8848/nacos/v2/ns/instance'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Modify instance

Description

Modify instance information

The metadata updated through this interface has a higher priority and has the ability to remember. After the instance removed, it will still exist for a period of time. If the instance is re-registered during this period, the metadata will still be Effective. You can modify the memory time through nacos.naming.clean.expired-metadata.expired-time and nacos.naming.clean.expired-metadata.interval

Request Method

PUT

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/ns/instance

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`ip`	`String`	Y	`IP` address
`port`	`int`	Y	Port number
`clusterName`	`String`	N	Cluster name, default is `DEFAULT`
`healthy`	`boolean`	N	Whether to find only healthy instances, default is `true`
`weight`	`double`	N	Instance weights, default is `1.0`
`enabled`	`boolean`	N	Enable or not, default is `true`
`metadata`	`JSON format String`	N	Instance metadata
`ephemeral`	`boolean`	N	Whether it is a temporary instance

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'serviceName=test_service' \
  -d 'ip=127.0.0.1' \
  -d 'port=8090' \
  -d 'weight=0.9' \
  -d 'ephemeral=true' \
  -X PUT 'http://127.0.0.1:8848/nacos/v2/ns/instance'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Query instance detail

Description

Query the details of a specific instance

Request Method

GET

Request URL

/nacos/v2/ns/instance

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`clusterName`	`String`	N	Cluster name, default is `DEFAULT`
`ip`	`String`	Y	`IP` address
`port`	`int`	Y	Port number

Return Data

Parameter	Type	Description
`data`	`Object`	Instance details information
`data.serviceName`	`String`	Service name
`data.ip`	`String`	`IP` address
`data.port`	`int`	Port number
`data.clusterName`	`String`	Cluster name
`data.weight`	`double`	Instance weight
`data.healthy`	`boolean`	healthy
`data.instanceId`	`String`	Instance `id`
`data.metadata`	`map`	Instance metadata

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/instance?namespaceId=public&groupName=&serviceName=test_service&ip=127.0.0.1&port=8080'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"serviceName": "DEFAULT_GROUP@@test_service",
		"ip": "127.0.0.1",
		"port": 8080,
		"clusterName": "DEFAULT",
		"weight": 1.0,
		"healthy": true,
		"instanceId": null,
		"metadata": {
			"value": "1"
		}
	}
}

Query instances

Description

Query the list of instances under the specified service

Request Method

GET

Request URL

/nacos/v2/ns/instance/list

Request Header

Parameter	Type	Required	Description
`User-Agent`	`String`	N	User agent, default is empty
`Client-Version`	`String`	N	Client version, default is empty

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is empty
`serviceName`	`String`	Y	Service name
`clusterName`	`String`	N	Cluster name, default is `DEFAULT`
`ip`	`String`	N	`IP` address, the default is empty, which means no restrictions on `IP` address
`port`	`int`	N	Port numberThe default is `0`, which means no restriction on port number
`healthyOnly`	`boolean`	N	Whether to get only healthy instances, default is `false`
`app`	`String`	N	Application name, default is empty

Return Data

Parameter	Type	Description
`data`		List of instances of the specified service
`data.name`	`String`	Group name@@Service name
`data.groupName`	`String`	Group name
`data.clusters`	`String`	Cluster name
`data.cacheMillis`	`int`	Cache name
`data.hosts`	`Object[]`	Instance list
`data.hosts.ip`	`String`	Instance `IP`
`data.hosts.port`	`int`	Instance Port number
`data.hosts.weight`	`double`	Instance weight
`data.hosts.healthy`	`boolean`	Instance healthy
`data.hosts.enabled`	`boolean`	Instance is enabled
`data.hosts.ephemeral`	`boolean`	Whether it is a temporary instance
`data.hosts.clusterName`	`String`	Name of the cluster where the instance is located
`data.hosts.serviceName`	`String`	Service name
`data.hosts.metadata`	`map`	Instance metadata
`data.hosts.instanceHeartBeatTimeOut`	`int`	Instance heartbeat timeout time
`data.hosts.ipDeleteTimeout`	`int`	Instance delete timeout time
`data.hosts.instanceHeartBeatInterval`	`int`	Instance heartbeat interval
`data.lastRefTime`	`int`	last refresh time
`data.checksum`	`int`	checksum
`data.allIPs`	`boolean`
`data.reachProtectionThreshold`	`boolean`	Whether the protection threshold is reached
`data.valid`	`boolean`	Valid

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/instance/list?serviceName=test_service&ip=127.0.0.1'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"name": "DEFAULT_GROUP@@test_service",
		"groupName": "DEFAULT_GROUP",
		"clusters": "",
		"cacheMillis": 10000,
		"hosts": [
			{
				"ip": "127.0.0.1",
				"port": 8080,
				"weight": 1.0,
				"healthy": true,
				"enabled": true,
				"ephemeral": true,
				"clusterName": "DEFAULT",
				"serviceName": "DEFAULT_GROUP@@test_service",
				"metadata": {
					"value": "1"
				},
				"instanceHeartBeatTimeOut": 15000,
				"ipDeleteTimeout": 30000,
				"instanceHeartBeatInterval": 5000
			}
		],
		"lastRefTime": 1662554390814,
		"checksum": "",
		"allIPs": false,
		"reachProtectionThreshold": false,
		"valid": true
	}
}

Batch update instance metadata

Description

Batch update instance metadata

If the key corresponding to the metadata does not exist, add the corresponding metadata.

Request Method

PUT

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/ns/instance/metadata/batch

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`consistencyType`	`String`	N	Persistence type, default is empty
`instances`	`JSON format String`	N	Instance list, default is empty
`metadata`	`JSON format String`	Y	Instance metadata

Parameter Description

consistencyType: Persistence type of Instance, when ``persist`'' means update the metadata of persistent Instance; otherwise means update the metadata of temporary Instance

instances: Instance list to be updated, json array, locate an instance by ip+port+ephemeral+cluster, null means update the metadata of all instances under the specified service

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'serviceName=test_service' \
  -d 'consistencyType=ephemeral' \
  -d 'instances=[{"ip":"3.3.3.3","port": "8080","ephemeral":"true","clusterName":"xxxx-cluster"},{"ip":"2.2.2.2","port":"8080","ephemeral":"true","clusterName":"xxxx-cluster"}]' \
  -d 'metadata={"age":"20","name":"cocolan"}' \
  -X PUT 'http://127.0.0.1:8848/nacos/v2/ns/instance/metadata/batch'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Batch delete instance metadata

Description

Batch delete instance metadata

If the key corresponding to the metadata does not exist, then no operation is performed

Request Method

DELETE

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/ns/instance/metadata/batch

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`consistencyType`	`String`	N	Persistence type, default is empty
`instances`	`JSON format String`	N	Instance list, default is empty
`metadata`	`JSON format String`	Y	Instance metadata

Parameter Description

consistencyType: Persistence type of Instance, when ``persist`'' means update the metadata of persistent Instance; otherwise means update the metadata of temporary Instance

instances: Instance list to be updated, json array, locate an instance by ip+port+ephemeral+cluster, null means update the metadata of all instances under the specified service

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'serviceName=test_service' \
  -d 'consistencyType=ephemeral' \
  -d 'instances=[{"ip":"3.3.3.3","port": "8080","ephemeral":"true","clusterName":"xxxx-cluster"},{"ip":"2.2.2.2","port":"8080","ephemeral":"true","clusterName":"xxxx-cluster"}]' \
  -d 'metadata={"age":"20","name":"cocolan"}' \
  -X DELETE 'http://127.0.0.1:8848/nacos/v2/ns/instance/metadata/batch'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Create service

Description

Create a service

Failed to create when service already exists

Request Method

POST

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/ns/service

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`metadata`	`JSON format String`	N	Service metadata, default is empty
`ephemeral`	`boolean`	N	Whether it is a temporary instance, default is `false`
`protectThreshold`	`float`	N	Protection threshold, default is `0`
`selector`	`JSON format String`	N	Selector, default is empty

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'serviceName=nacos.test.1' \
  -d 'ephemeral=true' \
  -d 'metadata={"k1":"v1"}' \
  -X POST 'http://127.0.0.1:8848/nacos/v2/ns/service'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Delete service

Description

Delete the specified service

An error is reported when the service does not exist, and deletion fails when an instance of the service still exists

Request Method

DELETE

Request URL

/nacos/v2/ns/service

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -X DELETE 'http://127.0.0.1:8848/nacos/v2/ns/service?serviceName=nacos.test.1'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Update service

Description

Update the specified service

Error when service does not exist

Request Method

POST

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/ns/service

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`metadata`	`JSON format String`	N	Service metadata, default is empty
`protectThreshold`	`float`	N	Protection threshold, default is `0`
`selector`	`JSON format String`	N	Selector, default is empty

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'serviceName=nacos.test.1' \
  -d 'metadata={"k1":"v2"}' \
  -X PUT 'http://127.0.0.1:8848/nacos/v2/ns/service'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Query service

Description

Query detailed information about a specific service

Error when service does not exist

Request Method

GET

Request URL

/nacos/v2/ns/service

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is empty
`serviceName`	`String`	Y	Service name

Return Data

Parameter	Type	Description
`data`		Service information
`data.namespace`	`String`	Namespace
`data.groupName`	`String`	Group name
`data.serviceName`	`String`	Service name
`data.clusterMap`	`map`	Cluster information
`data.metadata`	`map`	Service metadata
`data.protectThreshold`	`float`	Protection threshold
`data.selector`	`Object`	Selector
`data.ephemeral`	`Boolean`	Whether it is a temporary instance

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/service?serviceName=nacos.test.1'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"namespace": "public",
		"serviceName": "nacos.test.1",
		"groupName": "DEFAULT_GROUP",
		"clusterMap": {},
		"metadata": {},
		"protectThreshold": 0,
		"selector": {
			"type": "none",
			"contextType": "NONE"
		},
		"ephemeral": false
	}
}

Query service list

Description

Check the list of eligible services

Request Method

GET

Request URL

/nacos/v2/ns/service/list

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is empty
`selector`	`JSON format String`	Y	Selector
`pageNo`	`int`	N	Current page, default is `1`
`pageSize`	`int`	N	Number of page, default is `20`, Up to `500`

Return Data

Parameter	Type	Description
`data`		Service list
`data.count`	`String`	Number of services
`data.services`	`String[]`	Service list after paging

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/service/list'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"count": 2,
		"services": [
			"nacos.test.1",
			"nacos.test.2"
		]
	}
}

Query system switches

Description

Query system switches

Request Method

GET

Request URL

/nacos/v2/ns/operator/switches

Return Data

Parameter	Type	Description
`data`	`Object`	System switch information

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/operator/switches'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"masters": null,
		"adWeightMap": {},
		"defaultPushCacheMillis": 10000,
		"clientBeatInterval": 5000,
		"defaultCacheMillis": 3000,
		"distroThreshold": 0.7,
		"healthCheckEnabled": true,
		"autoChangeHealthCheckEnabled": true,
		"distroEnabled": true,
		"enableStandalone": true,
		"pushEnabled": true,
		"checkTimes": 3,
		"httpHealthParams": {
			"max": 5000,
			"min": 500,
			"factor": 0.85
		},
		"tcpHealthParams": {
			"max": 5000,
			"min": 1000,
			"factor": 0.75
		},
		"mysqlHealthParams": {
			"max": 3000,
			"min": 2000,
			"factor": 0.65
		},
		"incrementalList": [],
		"serverStatusSynchronizationPeriodMillis": 2000,
		"serviceStatusSynchronizationPeriodMillis": 5000,
		"disableAddIP": false,
		"sendBeatOnly": false,
		"lightBeatEnabled": true,
		"doubleWriteEnabled": false,
		"limitedUrlMap": {},
		"distroServerExpiredMillis": 10000,
		"pushGoVersion": "0.1.0",
		"pushJavaVersion": "0.1.0",
		"pushPythonVersion": "0.4.3",
		"pushCVersion": "1.0.12",
		"pushCSharpVersion": "0.9.0",
		"enableAuthentication": false,
		"overriddenServerStatus": null,
		"defaultInstanceEphemeral": true,
		"healthCheckWhiteList": [],
		"name": "00-00---000-NACOS_SWITCH_DOMAIN-000---00-00",
		"checksum": null
	}
}

Update system switch

Description

Update system switch

Request Method

PUT

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/ns/operator/switches

Request Body

Parameter	Type	Required	Description
`entry`	`String`	Y	Entry
`value`	`String`	Y	Value
`debug`	`boolean`	N	Whether it takes effect on local machine only,`true` means it takes effect on local machine,`false` means it takes effect on cluster

Return Data

Parameter	Type	Description
`data`	`String`	"ok" indicates successful execution

Example

Request Example

curl -d 'entry=pushEnabled' \
  -d 'value=false' \
  -d 'debug=true' \
  -X PUT 'http://127.0.0.1:8848/nacos/v2/ns/operator/switches'

Response Example

{
      "code": 0,
      "message": "success",
      "data": "ok"
}

Query system metrics

Description

Query system metrics

Request Method

GET

Request URL

/nacos/v2/ns/operator/metrics

Request Parameters

Parameter	Type	Required	Description
`onlyStatus`	`boolean`	N	Show status only, default is `true`

When onlyStatus is set to true, only the string indicating the system status is returned

Return Data

Parameter	Type	Description
`data`	`Object`	System metrics
`data.status`	`String`	System status
`data.serviceCount`	`int`	Number of services
`data.instanceCount`	`int`	Number of instances
`data.subscribeCount`	`int`	Number of subscriptions
`data.raftNotifyTaskCount`	`int`	Number of `Raft` notify task
`data.responsibleServiceCount`	`int`
`data.responsibleInstanceCount`	`int`
`data.clientCount`	`int`	Number of client
`data.connectionBasedClientCount`	`int`	Number of connectionBasedClient
`data.ephemeralIpPortClientCount`	`int`	Number of ephemeralIpPortClient
`data.persistentIpPortClientCount`	`int`	Number of persistentIpPortClient
`data.responsibleClientCount`	`int`
`data.cpu`	`float`	`cpu` utilization
`data.load`	`float`	load
`data.mem`	`float`	Memory usage

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/operator/metrics'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"status": "UP",
		"serviceCount": 2,
		"instanceCount": 2,
		"subscribeCount": 2,
		"raftNotifyTaskCount": 0,
		"responsibleServiceCount": 0,
		"responsibleInstanceCount": 0,
		"clientCount": 2,
		"connectionBasedClientCount": 2,
		"ephemeralIpPortClientCount": 0,
		"persistentIpPortClientCount": 0,
		"responsibleClientCount": 2,
		"cpu": 0,
		"load": -1,
		"mem": 1
	}
}

Update instance health status

Description

Update the health status of the instance

Request Method

PUT

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/ns/health/instance

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`clusterName`	`String`	N	Cluster name, default is `DEFAULT`
`ip`	`String`	Y	`IP` address
`port`	`int`	Y	Port number
`healthy`	`boolean`	Y	healthy

Return Data

Parameter	Type	Description
`data`	`String`	"`ok`" indicates successful execution

Example

Request Example

curl -d 'serviceName=nacos.test.1' \
  -d 'ip=127.0.0.1' \
  -d 'port=8080' \
  -d 'healthy=false' \
  -X PUT 'http://127.0.0.1:8848/nacos/v2/ns/health/instance'

Response Example

{
      "code": 0,
      "message": "success",
      "data": "ok"
}

Query client list (new)

Description

Query the current list of all clients

Request Method

GET

Request URL

/nacos/v2/ns/client/list

Return Data

Parameter	Type	Description
`data`	`String[]`	Client `id` list

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/client/list'

Response Example

{
	"code": 0,
	"message": "success",
	"data": [
		"10.128.164.35:9956#true",
		"1664358687402_127.0.0.1_2300",
		"1664358642902_127.0.0.1_2229",
		"192.168.139.1:49825#true",
		"10.128.164.35:9954#true",
		"192.168.139.1:53556#true"
	]
}

For different versions of the nacos client, there are different ways to create clients.

For nacos client in 1.x version, each Instance will create two clients based on ip+port, corresponding to Instance registration and service subscription, respectively, with clientId in the format ip:port#ephemeral

For nacos client in 2.x version, each Instance establishes a RPC connection, which corresponds to an RPC connection-based client with both registration and subscription functions, with clientId in the format time_ip_port

Query client (new)

Description

Query the details of the specified client

Error when client does not exist

Request Method

GET

Request URL

/nacos/v2/ns/client

Request Parameters

Parameter	Type	Required	Description
`clientId`	`String`	Y	Client `id`

Return Data

Parameter	Type	Description
`data`	`Object`	Client Information
`data.clientId`	`String`	Client `id`
`data.ephemeral`	`boolean`	Whether it is a temporary instance
`data.lastUpdatedTime`	`int`	Last update time
`data.clientType`	`String`	Client type
`data.clientIp`	`String`	Client `IP`
`data.clientPort`	`String`	Client `port`
`data.connectType`	`String`	Connection type
`data.appName`	`String`	Application name
`data.Version`	`String`	Client version

Only when clientType is connection, the connectType, appName and appName fields will be displayed

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/client?clientId=1664527081276_127.0.0.1_4400'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"clientId": "1664527081276_127.0.0.1_4400",
		"ephemeral": true,
		"lastUpdatedTime": 1664527081642,
		"clientType": "connection",
		"connectType": "GRPC",
		"appName": "-",
		"version": "Nacos-Java-Client:v2.1.0",
		"clientIp": "10.128.164.35",
		"clientPort": "4400"
	}
}

Query the registration information of the client (new)

Description

Query the registration information of the specified client

Error when client does not exist

Request Method

GET

Request URL

/nacos/v2/ns/client/publish/list

Request Parameters

Parameter	Type	Required	Description
`clientId`	`String`	Y	Client `id`

Return Data

Parameter	Type	Description
`data`	`Object[]`	List of services registered by the client
`data.namespace`	`String`	Namespace
`data.group`	`String`	Group name
`data.serviceName`	`String`	Service name
`data.registeredInstance`	`Object`	Instances registered under this service
`data.registeredInstance.ip`	`String`	`IP` address
`data.registeredInstance.port`	`int`	Port number
`data.registeredInstance.cluster`	`String`	Cluster name

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/client/publish/list?clientId=1664527081276_127.0.0.1_4400'

Response Example

{
	"code": 0,
	"message": "success",
	"data": [
		{
			"namespace": "public",
			"group": "DEFAULT_GROUP",
			"serviceName": "nacos.test.1",
			"registeredInstance": {
				"ip": "10.128.164.35",
				"port": 9950,
				"cluster": "DEFAULT"
			}
		}
	]
}

Query the subscription information of the client (new)

Description

Query the subscription information of the specified client

Error when client does not exist

Request Method

GET

Request URL

/nacos/v2/ns/client/subscribe/list

Request Parameters

Parameter	Type	Required	Description
`clientId`	`String`	Y	Client `id`

Return Data

Parameter	Type	Description
`data`	`Object[]`	List of services to which the client is subscribed
`data.namespace`	`String`	Namespace
`data.group`	`String`	Group name
`data.serviceName`	`String`	Service name
`data.subscriberInfo`	`Object`	Subscription Information
`data.subscriberInfo.app`	`String`	Application
`data.subscriberInfo.agent`	`String`	Client Information
`data.subscriberInfo.addr`	`String`	Address

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/client/subscribe/list?clientId=1664527081276_127.0.0.1_4400'

Response Example

{
	"code": 0,
	"message": "success",
	"data": [
		{
			"namespace": "public",
			"group": "DEFAULT_GROUP",
			"serviceName": "nacos.test.1",
			"subscriberInfo": {
				"app": "unknown",
				"agent": "Nacos-Java-Client:v2.1.0",
				"addr": "10.128.164.35"
			}
		}
	]
}

Query the client that registered the specified service (new)

Description

Query the client information of the registered specified service

Request Method

GET

Request URL

/nacos/v2/ns/client/service/publisher/list

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	N	Namespace`Id`, default is `public`
`groupName`	`String`	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	`String`	Y	Service name
`ephemeral`	`boolean`	N	Whether it is a temporary instance
`ip`	`String`	N	`IP` address, default is empty, indicates unrestricted `IP` address
`port`	`int`	N	Port number, default is empty, Indicates unrestricted `Port` number

Return Data

Parameter	Type	Description
`data`		Client list
`data.clientId`	`String`	Client `id`
`data.ip`	`String`	Client `IP`
`data.port`	`int`	Client `port`

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/client/service/publisher/list?serviceName=nacos.test.1&ip=&port='

Response Example

{
	"code": 0,
	"message": "success",
	"data": [
		{
			"clientId": "1664527081276_127.0.0.1_4400",
			"ip": "10.128.164.35",
			"port": 9950
		},
		{
			"clientId": "10.128.164.35:9954#true",
			"ip": "10.128.164.35",
			"port": 9954
		}
	]
}

Query the information of clients subscribed to the specified service (new)

Description

Query the clients subscribed to the specified service

Request Method

GET

Request URL

/nacos/v2/ns/client/service/subscriber/list

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	String	N	Namespace`Id`, default is `public`
`groupName`	String	N	Group name, default is `DEFAULT_GROUP`
`serviceName`	String	Y	Service name
`ephemeral`	boolean	N	Whether it is a temporary instance
`ip`	String	N	`IP` address, default is empty, indicates unrestricted `IP` address
`port`	int	N	Port number, default is empty, Indicates unrestricted `Port` number

Return Data

Parameter	Type	Description
`data`		Client list
`data.clientId`	`String`	Client `id`
`data.ip`	`String`	Client `IP`
`data.port`	`int`	Client `port`

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/ns/client/service/subscriber/list?serviceName=nacos.test.1&ip=&port='

Response Example

{
	"code": 0,
	"message": "success",
	"data": [
		{
			"clientId": "1664527125645_127.0.0.1_4443",
			"ip": "10.128.164.35",
			"port": 0
		},
		{
			"clientId": "172.24.144.1:54126#true",
			"ip": "172.24.144.1",
			"port": 54126
		}
	]
}

Namespace

Query namespaces

Description

Query all namespaces

Request Method

GET

Request URL

/nacos/v2/console/namespace/list

Return Data

Parameter	Type	Description
`data`	`Object[]`	Namespaces
`data.namespace`	`String`	Namespace`ID`
`data.namespaceShowName`	`String`	Namespace name
`data.namespaceDesc`	`String`	Namespace description
`data.quota`	`int`	the capacity of Namespace
`data.configCount`	`int`	Number of configs under namespace
`data.type`	`int`	Namespace type

There are 3 types of Namespace, 0 - Global Namespace 1 - Default Private Namespace 2 - Custom Namespace

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/console/namespace/list'

Response Example

{
	"code": 0,
	"message": "success",
	"data": [
		{
			"namespace": "",
			"namespaceShowName": "public",
			"namespaceDesc": null,
			"quota": 200,
			"configCount": 1,
			"type": 0
		}
	]
}

Query namespace

Description

Query information about a specific Namespace

Error when namespace does not exist

Request Method

GET

Request URL

/nacos/v2/console/namespace

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	Y	Namespace`Id`

Return Data

Parameter	Type	Description
`data`	`Object`	Namespace
`data.namespace`	`String`	Namespace `ID`
`data.namespaceShowName`	`String`	Namespace name
`data.namespaceDesc`	`String`	Namespace description
`data.quota`	`int`	the capacity of Namespace
`data.configCount`	`int`	Number of configs under namespace
`data.type`	`int`	Namespace type

There are 3 types of Namespace, 0 - Global Namespace 1 - Default Private Namespace 2 - Custom Namespace

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/console/namespace?namespaceId=test_namespace'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"namespace": "test_namespace",
		"namespaceShowName": "test",
		"namespaceDesc": null,
		"quota": 200,
		"configCount": 0,
		"type": 2
	}
}

Create namespace

Description

Create a namespace

Error when namespace already exists

Request Method

POST

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/console/namespace

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	Y	Namespace`Id`
`namespaceName`	`String`	Y	Namespace name
`namespaceDesc`	`String`	N	Namespace Description

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'namespaceId=test_namespace' \
  -d 'namespaceName=test' \
  -X POST 'http://127.0.0.1:8848/nacos/v2/console/namespace'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Update namespace

Description

Edit namespace

Request Method

PUT

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/console/namespace

Request Body

Parameter	Type	Required	Description
`namespaceId`	`String`	Y	Namespace`Id`
`namespaceName`	`String`	Y	Namespace name
`namespaceDesc`	`String`	N	Namespace Description

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'namespaceId=test_namespace' \
  -d 'namespaceName=test.nacos' \
  -X PUT 'http://127.0.0.1:8848/nacos/v2/console/namespace'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Delete namespace

Description

Delete the specified namespace

Request Method

DELETE

Request URL

/nacos/v2/console/namespace

Request Parameters

Parameter	Type	Required	Description
`namespaceId`	`String`	Y	Namespace`Id`

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'namespaceId=test_namespace' \
  -X DELETE 'http://127.0.0.1:8848/nacos/v2/console/namespace'

Response Example

{
      "code": 0,
      "message": "success",
      "data": true
}

Cluster

Query the current node

Description

Query the current nacos node

Request Method

GET

Request URL

/nacos/v2/core/cluster/node/self

Return Data

Parameter	Type	Description
`data`	`Object`	Current node
`data.ip`	`String`	Node `IP` address
`data.port`	`int`	Node port
`data.state`	`String`	Node status
`data.extendInfo`	`Object`	Node extend information
`data.address`	`String`	Node address （`IP:port`）
`data.failAccessCnt`	`int`	Number of failed access
`data.abilities`	`Object`

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/core/cluster/node/self'

Response Example

{
	"code": 0,
	"message": "success",
	"data": {
		"ip": "10.128.164.35",
		"port": 8848,
		"state": "UP",
		"extendInfo": {
			"lastRefreshTime": 1664521263623,
			"raftMetaData": {
				"metaDataMap": {
					"naming_instance_metadata": {
						"leader": "10.128.164.35:7848",
						"raftGroupMember": [
							"10.128.164.35:7848"
						],
						"term": 12
					},
					"naming_persistent_service_v2": {
						"leader": "10.128.164.35:7848",
						"raftGroupMember": [
							"10.128.164.35:7848"
						],
						"term": 12
					},
					"naming_service_metadata": {
						"leader": "10.128.164.35:7848",
						"raftGroupMember": [
							"10.128.164.35:7848"
						],
						"term": 12
					}
				}
			},
			"raftPort": "7848",
			"readyToUpgrade": true,
			"version": "2.1.0"
		},
		"address": "10.128.164.35:8848",
		"failAccessCnt": 0,
		"abilities": {
			"remoteAbility": {
				"supportRemoteConnection": true
			},
			"configAbility": {
				"supportRemoteMetrics": false
			},
			"namingAbility": {
				"supportJraft": true
			}
		}
	}
}

Query the list of cluster nodes

Description

Query the information of all nodes in the cluster

Request Method

GET

Request URL

/nacos/v2/core/cluster/node/list

Request Parameters

Parameter	Type	Required	Description
`address`	`String`	N	Node address, default is empty
`state`	`String`	N	Node status, default is empty

addresscorresponds to the prefix match condition of the Node address to be queried, and is not restricted when it is empty

statecorresponds to the filter condition of node status and is not restricted when it is empty

Return Data

Parameter	Type	Description
`data`	`Object[]`	Node list, refer to Node info

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/core/cluster/node/list'

Response Example

{
	"code": 0,
	"message": "success",
	"data": [
		{
			"ip": "10.128.164.35",
			"port": 8848,
			"state": "UP",
			"extendInfo": {
				"lastRefreshTime": 1664521263623,
				"raftMetaData": {
					"metaDataMap": {
						"naming_instance_metadata": {
							"leader": "10.128.164.35:7848",
							"raftGroupMember": [
								"10.128.164.35:7848"
							],
							"term": 12
						},
						"naming_persistent_service_v2": {
							"leader": "10.128.164.35:7848",
							"raftGroupMember": [
								"10.128.164.35:7848"
							],
							"term": 12
						},
						"naming_service_metadata": {
							"leader": "10.128.164.35:7848",
							"raftGroupMember": [
								"10.128.164.35:7848"
							],
							"term": 12
						}
					}
				},
				"raftPort": "7848",
				"readyToUpgrade": true,
				"version": "2.1.0"
			},
			"address": "10.128.164.35:8848",
			"failAccessCnt": 0,
			"abilities": {
				"remoteAbility": {
					"supportRemoteConnection": true
				},
				"configAbility": {
					"supportRemoteMetrics": false
				},
				"namingAbility": {
					"supportJraft": true
				}
			}
		}
	]
}

Query the current node health status

Description

Query the current nacos node health status

Request Method

GET

Request URL

/nacos/v2/core/cluster/node/self/health

Return Data

Parameter	Type	Description
`data`	`String`	Current node health status

Node has five states: STARTING, UP, SUSPICIOUS, DOWN and ISOLATION.

Example

Request Example

curl -X GET 'http://127.0.0.1:8848/nacos/v2/core/cluster/node/self/health'

Response Example

{
	"code": 0,
	"message": "success",
	"data": "UP"
}

Switch addressing modes

Description

Switch addressing modes

Request Method

PUT

Content-Type:application/x-www-form-urlencoded

Request URL

/nacos/v2/core/cluster/lookup

Request Body

Parameter	Type	Required	Description
`type`	`String`	Y	Addressing mode

There are two addressing modes: file (file configuration) and address-server (address server)

Return Data

Parameter	Type	Description
`data`	`boolean`	Whether the execution is successful

Example

Request Example

curl -d 'type=file' \
  -X PUT 'http://127.0.0.1:8848/nacos/v2/core/cluster/lookup'

Response Example

{
	"code": 0,
	"message": "success",
	"data": true
}

Connection Load Management

Query the List of Current Node Client Connections

Description

Query the list of client connections on the current Nacos node.

Request Method

GET

Request URL

/nacos/v2/core/loader/current

Return Data

Parameter	Type	Description
`traced`	`Boolean`	Monitoring indicator
`abilityTable`	`Map`	Capability table
`metaInfo`	`Object`	Metadata
`connected`	`Integer`	Connection status
`labels`	`Map`	Labels

Example

Request Example

curl -X GET 'http://localhost:8848/nacos/v2/core/loader/current'

Response Example

{
    "1697424543845_127.0.0.1_11547": {
        "traced": false,
        "abilityTable": null,
        "metaInfo": {
            "connectType": "GRPC",
            "clientIp": "192.168.49.1",
            "localPort": 9848,
            "version": "Nacos-Java-Client:v2.1.0",
            "connectionId": "1697424543845_127.0.0.1_11547",
            "createTime": "2023-10-16T10:49:03.907+08:00",
            "lastActiveTime": 1697424869827,
            "appName": "unknown",
            "tenant": "",
            "labels": {
                "source": "sdk",
                "taskId": "0",
                "module": "config",
                "AppName": "unknown"
            },
            "tag": null,
            "sdkSource": true,
            "clusterSource": false
        },
        "connected": true,
        "labels": {
            "source": "sdk",
            "taskId": "0",
            "module": "config",
            "AppName": "unknown"
        }
    }
}

Reload the Number of Current Node Client Connections

Description

Reload the number of client connections on the current Nacos node.

Request Method

GET

Request URL

/nacos/v2/core/loader/current/reloadCurrent

Request Parameters

Parameter	Type	Required	Description
`count`	`Integer`	Y	ID of connections
`redirectAddress`	`String`	N	Redirect address

Return Data

Parameter	Type	Description
`data`	`String`	Execution result

Example

Request Example

curl -X GET 'http://localhost:8848/nacos/v2/core/loader/reloadCurrent?count=1&redirectAddress=127.0.0.1:8848'

Response Example
```
success
```

Intelligently Balance the Number of Client Connections in the Cluster

Description

Intelligently balance the client connections among all nodes in the Nacos cluster.

Request Method

GET

Request URL

/nacos/v2/core/loader/current/smartReloadCluster

Request Parameters

Parameter	Type	Required	Description
`loaderFactor`	`Float`	N	The loading factor, with a default value of 0.1, determines the number of SDKs per node, calculated as (1 - loaderFactor) * avg ~ (1 + loaderFactor) * avg.
`force`	`String`	N	Force flag

Return Data

Parameter	Type	Description
`data`	`String`	Execution result

Example

Request Example

curl -X GET 'http://localhost:8848/nacos/v2/core/loader/smartReloadCluster?loaderFactor=1'

Response Example
```
Ok
```

Reset a Specific Client Connection

Description

Send a connection reset request based on the SDK connection ID.

Request Method

GET

Request URL

/nacos/v2/core/loader/current/reloadClient

Request Body

Parameter	Type	Required	Description
`connectionId`	`String`	Y	Connection ID
`redirectAddress`	`String`	N	Reset address

Return Data

Parameter	Type	Description
`data`	`String`	Execution result

Example

Request Example

curl -X GET 'http://localhost:8848/nacos/v2/core/loader/reloadClient?connectionId=1&redirectAddress=127.0.0.1:8848'

Response Example
```
success
```

Get SDK Metrics for the Cluster

Description

Get SDK metrics for all nodes in the Nacos cluster.

Request Method

GET

Request URL

/nacos/v2/core/loader/current/cluster

Return Data

Parameter	Type	Description
`total`	`Integer`	Current number of cluster nodes
`min`	`Integer`	Minimum load value
`avg`	`Integer`	Average load value
`max`	`Integer`	Maximum load value
`memberCount`	`Integer`	Number of members in the current node
`metricsCount`	`Integer`	Number of load information
`threshold`	`Float`	Load threshold. The threshold is calculated as: Average load value * 1.1
`detail`	`String`	Contains detailed load information for each node
`detail.address`	`Map<String, String>`	Node address
`detail.metric`	`Map<String, String>`	Metric information
`completed`	`Boolean`	Indicates whether the collection of load information has been completed. If true, it means that load information for all nodes has been collected, otherwise, it is false

Example

Request Example

curl -X GET 'http://localhost:8848/nacos/v2/core/loader/cluster'

Response Example

{
    "1697424543845_127.0.0.1_11547": {
        "traced": false,
        "abilityTable": null,
        "metaInfo": {
            "connectType": "GRPC",
            "clientIp": "192.168.49.1",
            "localPort": 9848,
            "version": "Nacos-Java-Client:v2.1.0",
            "connectionId": "1697424543845_127.0.0.1_11547",
            "createTime": "2023-10-16T10:49:03.907+08:00",
            "lastActiveTime": 1697424869827,
            "appName": "unknown",
            "tenant": "",
            "labels": {
            "source": "sdk",
            "taskId": "0",
            "module": "config",
            "AppName": "unknown"
        },
        "tag": null,
        "sdkSource": true,
        "clusterSource": false
        },
        "connected": true,
        "labels": {
            "source": "sdk",
            "taskId": "0",
            "module": "config",
            "AppName": "unknown"
        }
    }
}