Version: 3.4

Admin API

Description#

The Admin API lets users control their deployed Apache APISIX instance. The architecture design gives an idea about how everything fits together.

Configuration#

When APISIX is started, the Admin API will listen on port 9180 by default and take the API prefixed with /apisix/admin.

Therefore, to avoid conflicts between your designed API and /apisix/admin, you can modify the configuration file /conf/config.yaml to modify the default listening port.

APISIX supports setting the IP access allowlist of Admin API to prevent APISIX from being illegally accessed and attacked. You can configure the IP addresses to allow access in the deployment.admin.allow_admin option in the ./conf/config.yaml file.

The X-API-KEY shown below refers to the deployment.admin.admin_key.key in the ./conf/config.yaml file, which is the access token for the Admin API.

tip

For security reasons, please modify the default admin_key, and check the allow_admin IP access list.

./conf/config.yaml

deployment:
    admin:
        admin_key:
        - name: admin
            key: edd1c9f034335f136f87ad84b625c8f1  # using fixed API token has security risk, please update it when you deploy to production environment
            role: admin
        allow_admin:                    # http://nginx.org/en/docs/http/ngx_http_access_module.html#allow
            - 127.0.0.0/24
        admin_listen:
            ip: 0.0.0.0                 # Specific IP, if not set, the default value is `0.0.0.0`.
            port: 9180                  # Specific port, which must be different from node_listen's port.

Using environment variables#

To configure via environment variables, you can use the ${{VAR}} syntax. For instance:

./conf/config.yaml

deployment:
  admin:
    admin_key:
    - name: admin
      key: ${{ADMIN_KEY}}
      role: admin
    allow_admin:
    - 127.0.0.0/24
    admin_listen:
      ip: 0.0.0.0
      port: 9180

And then run export ADMIN_KEY=$your_admin_key before running make init.

If the configured environment variable can't be found, an error will be thrown.

If you want to use a default value when the environment variable is not set, use ${{VAR:=default_value}} instead. For instance:

./conf/config.yaml

deployment:
  admin:
    admin_key:
    - name: admin
      key: ${{ADMIN_KEY:=edd1c9f034335f136f87ad84b625c8f1}}
      role: admin
    allow_admin:
    - 127.0.0.0/24
    admin_listen:
      ip: 0.0.0.0
      port: 9180

This will find the environment variable ADMIN_KEY first, and if it does not exist, it will use edd1c9f034335f136f87ad84b625c8f1 as the default value.

V3 new feature#

The Admin API has made some breaking changes in V3 version, as well as supporting additional features.

Support new response body format#

Remove action field in response body;
Adjust the response body structure when fetching the list of resources, the new response body structure like:

Return single resource:

{
  "modifiedIndex": 2685183,
  "value": {
    "id": "1",
    ...
  },
  "key": "/apisix/routes/1",
  "createdIndex": 2684956
}

Return multiple resources:

{
  "list": [
    {
      "modifiedIndex": 2685183,
      "value": {
        "id": "1",
        ...
      },
      "key": "/apisix/routes/1",
      "createdIndex": 2684956
    },
    {
      "modifiedIndex": 2685163,
      "value": {
        "id": "2",
        ...
      },
      "key": "/apisix/routes/2",
      "createdIndex": 2685163
    }
  ],
  "total": 2
}

Support paging query#

Paging query is supported when getting the resource list, paging parameters include:

parameter	Default	Valid range	Description
page	1	[1, ...]	Number of pages.
page_size		[10, 500]	Number of resources per page.

The example is as follows:

curl "http://127.0.0.1:9180/apisix/admin/routes?page=1&page_size=10" \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X GET

{
  "total": 1,
  "list": [
    {
      ...
    }
  ]
}

Resources that support paging queries:

Consumer
Consumer Group
Global Rules
Plugin Config
Proto
Route
Service
SSL
Stream Route
Upstream
Secret

Support filtering query#

When getting a list of resources, it supports filtering resources based on name, label, uri.

parameter	parameter
name	Query resource by their `name`, which will not appear in the query results if the resource itself does not have `name`.
label	Query resource by their `label`, which will not appear in the query results if the resource itself does not have `label`.
uri	Supported on Route resources only. If the `uri` of a Route is equal to the uri of the query or if the `uris` contains the uri of the query, the Route resource appears in the query results.

tip

When multiple filter parameters are enabled, use the intersection of the query results for different filter parameters.

The following example will return a list of routes, and all routes in the list satisfy: the name of the route contains the string "test", the uri contains the string "foo", and there is no restriction on the label of the route, since the label of the query is the empty string.

curl 'http://127.0.0.1:9180/apisix/admin/routes?name=test&uri=foo&label=' \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X GET

{
  "total": 1,
  "list": [
    {
      ...
    }
  ]
}

Route#

Routes match the client's request based on defined rules, loads and executes the corresponding plugins, and forwards the request to the specified Upstream.

Route API#

Route resource request address: /apisix/admin/routes/{id}?ttl=0

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/routes	NULL	Fetches a list of all configured Routes.
GET	/apisix/admin/routes/{id}	NULL	Fetches specified Route by id.
PUT	/apisix/admin/routes/{id}	{...}	Creates a Route with the specified id.
POST	/apisix/admin/routes	{...}	Creates a Route and assigns a random id.
DELETE	/apisix/admin/routes/{id}	NULL	Removes the Route with the specified id.
PATCH	/apisix/admin/routes/{id}	{...}	Updates the selected attributes of the specified, existing Route. To delete an attribute, set value of attribute set to null.
PATCH	/apisix/admin/routes/{id}/{path}	{...}	Updates the attribute specified in the path. The values of other attributes remain unchanged.

URI Request Parameters#

parameter	Required	Type	Description	Example
ttl	False	Auxiliary	Request expires after the specified target seconds.	ttl=1

Request Body Parameters#

Parameter	Required	Type	Description	Example
name	False	Auxiliary	Identifier for the Route.	route-xxxx
desc	False	Auxiliary	Description of usage scenarios.	route xxxx
uri	True, can't be used with `uris`	Match Rules	Matches the uri. For more advanced matching see Router.	"/hello"
uris	True, can't be used with `uri`	Match Rules	Matches with any one of the multiple `uri`s specified in the form of a non-empty list.	["/hello", "/word"]
host	False, can't be used with `hosts`	Match Rules	Matches with domain names such as `foo.com` or PAN domain names like `*.foo.com`.	"foo.com"
hosts	False, can't be used with `host`	Match Rules	Matches with any one of the multiple `host`s specified in the form of a non-empty list.	["foo.com", "*.bar.com"]
remote_addr	False, can't be used with `remote_addrs`	Match Rules	Matches with the specified IP address in standard IPv4 format (`192.168.1.101`), CIDR format (`192.168.1.0/24`), or in IPv6 format (`::1`, `fe80::1`, `fe80::1/64`).	"192.168.1.0/24"
remote_addrs	False, can't be used with `remote_addr`	Match Rules	Matches with any one of the multiple `remote_addr`s specified in the form of a non-empty list.	["127.0.0.1", "192.0.0.0/8", "::1"]
methods	False	Match Rules	Matches with the specified methods. Matches all methods if empty or unspecified.	["GET", "POST"]
priority	False	Match Rules	If different Routes matches to the same `uri`, then the Route is matched based on its `priority`. A higher value corresponds to higher priority. It is set to `0` by default.	priority = 10
vars	False	Match Rules	Matches based on the specified variables consistent with variables in Nginx. Takes the form `[[var, operator, val], [var, operator, val], ...]]`. Note that this is case sensitive when matching a cookie name. See lua-resty-expr for more details.	[["arg_name", "==", "json"], ["arg_age", ">", 18]]
filter_func	False	Match Rules	Matches using a user-defined function in Lua. Used in scenarios where `vars` is not sufficient. Functions accept an argument `vars` which provides access to built-in variables (including Nginx variables).	function(vars) return tonumber(vars.arg_userid) % 4 > 2; end
plugins	False	Plugin	Plugins that are executed during the request/response cycle. See Plugin for more.
script	False	Script	Used for writing arbitrary Lua code or directly calling existing plugins to be executed. See Script for more.
upstream	False	Upstream	Configuration of the Upstream.
upstream_id	False	Upstream	Id of the Upstream service.
service_id	False	Service	Configuration of the bound Service.
plugin_config_id	False, can't be used with `script`	Plugin	Plugin config bound to the Route.
labels	False	Match Rules	Attributes of the Route specified as key-value pairs.	{"version":"v2","build":"16","env":"production"}
timeout	False	Auxiliary	Sets the timeout (in seconds) for connecting to, and sending and receiving messages between the Upstream and the Route. This will overwrite the `timeout` value configured in your Upstream.	{"connect": 3, "send": 3, "read": 3}
enable_websocket	False	Auxiliary	Enables a websocket. Set to `false` by default.
status	False	Auxiliary	Enables the current Route. Set to `1` (enabled) by default.	`1` to enable, `0` to disable
create_time	False	Auxiliary	Epoch timestamp (in seconds) of the created time. If missing, this field will be populated automatically.	1602883670
update_time	False	Auxiliary	Epoch timestamp (in seconds) of the updated time. If missing, this field will be populated automatically.	1602883670

Example configuration:

{
    "id": "1",                            # id, unnecessary.
    "uris": ["/a","/b"],                  # A set of uri.
    "methods": ["GET","POST"],            # Can fill multiple methods
    "hosts": ["a.com","b.com"],           # A set of host.
    "plugins": {},                        # Bound plugin
    "priority": 0,                        # If different routes contain the same `uri`, determine which route is matched first based on the attribute` priority`, the default value is 0.
    "name": "route-xxx",
    "desc": "hello world",
    "remote_addrs": ["127.0.0.1"],        # A set of Client IP.
    "vars": [["http_user", "==", "ios"]], # A list of one or more `[var, operator, val]` elements
    "upstream_id": "1",                   # upstream id, recommended
    "upstream": {},                       # upstream, not recommended
    "timeout": {                          # Set the upstream timeout for connecting, sending and receiving messages of the route.
        "connect": 3,
        "send": 3,
        "read": 3
    },
    "filter_func": ""                     # User-defined filtering function
}

Example API usage#

Create a route

curl http://127.0.0.1:9180/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -i -d '
{
    "uri": "/index.html",
    "hosts": ["foo.com", "*.bar.com"],
    "remote_addrs": ["127.0.0.0/8"],
    "methods": ["PUT", "GET"],
    "enable_websocket": true,
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:1980": 1
        }
    }
}'

HTTP/1.1 201 Created
Date: Sat, 31 Aug 2019 01:17:15 GMT
...

Create a route expires after 60 seconds, then it's deleted automatically

curl 'http://127.0.0.1:9180/apisix/admin/routes/2?ttl=60' \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -i -d '
{
    "uri": "/aa/index.html",
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:1980": 1
        }
    }
}'

HTTP/1.1 201 Created
Date: Sat, 31 Aug 2019 01:17:15 GMT
...

Add an upstream node to the Route

curl http://127.0.0.1:9180/apisix/admin/routes/1 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "upstream": {
        "nodes": {
            "127.0.0.1:1981": 1
        }
    }
}'

HTTP/1.1 200 OK
...

After successful execution, upstream nodes will be updated to:

{
    "127.0.0.1:1980": 1,
    "127.0.0.1:1981": 1
}

Update the weight of an upstream node to the Route

curl http://127.0.0.1:9180/apisix/admin/routes/1 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "upstream": {
        "nodes": {
            "127.0.0.1:1981": 10
        }
    }
}'

HTTP/1.1 200 OK
...

After successful execution, upstream nodes will be updated to:

{
    "127.0.0.1:1980": 1,
    "127.0.0.1:1981": 10
}

Delete an upstream node for the Route

curl http://127.0.0.1:9180/apisix/admin/routes/1 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "upstream": {
        "nodes": {
            "127.0.0.1:1980": null
        }
    }
}'

HTTP/1.1 200 OK
...

After successful execution, upstream nodes will be updated to:

{
    "127.0.0.1:1981": 10
}

Replace methods of the Route -- array

curl http://127.0.0.1:9180/apisix/admin/routes/1 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '{
    "methods": ["GET", "POST"]
}'

HTTP/1.1 200 OK
...

After successful execution, methods will not retain the original data, and the entire update is:

["GET", "POST"]

Replace upstream nodes of the Route -- sub path

curl http://127.0.0.1:9180/apisix/admin/routes/1/upstream/nodes \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "127.0.0.1:1982": 1
}'

HTTP/1.1 200 OK
...

After successful execution, nodes will not retain the original data, and the entire update is:

{
    "127.0.0.1:1982": 1
}

Replace methods of the Route -- sub path

curl http://127.0.0.1:9180/apisix/admin/routes/1/methods \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d'["POST", "DELETE", " PATCH"]'

HTTP/1.1 200 OK
...

After successful execution, methods will not retain the original data, and the entire update is:

["POST", "DELETE", "PATCH"]

Disable route

curl http://127.0.0.1:9180/apisix/admin/routes/1 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "status": 0
}'

HTTP/1.1 200 OK
...

After successful execution, status nodes will be updated to:

{
    "status": 0
}

Enable route

curl http://127.0.0.1:9180/apisix/admin/routes/1 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "status": 1
}'

HTTP/1.1 200 OK
...

After successful execution, status nodes will be updated to:

{
    "status": 1
}

Response Parameters#

Currently, the response is returned from etcd.

Service#

A Service is an abstraction of an API (which can also be understood as a set of Route abstractions). It usually corresponds to an upstream service abstraction.

The relationship between Routes and a Service is usually N:1.

Service API#

Service resource request address: /apisix/admin/services/{id}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/services	NULL	Fetches a list of available Services.
GET	/apisix/admin/services/{id}	NULL	Fetches specified Service by id.
PUT	/apisix/admin/services/{id}	{...}	Creates a Service with the specified id.
POST	/apisix/admin/services	{...}	Creates a Service and assigns a random id.
DELETE	/apisix/admin/services/{id}	NULL	Removes the Service with the specified id.
PATCH	/apisix/admin/services/{id}	{...}	Updates the selected attributes of the specified, existing Service. To delete an attribute, set value of attribute set to null.
PATCH	/apisix/admin/services/{id}/{path}	{...}	Updates the attribute specified in the path. The values of other attributes remain unchanged.

Request Body Parameters#

Parameter	Required	Type	Description	Example
plugins	False	Plugin	Plugins that are executed during the request/response cycle. See Plugin for more.
upstream	False	Upstream	Configuration of the Upstream.
upstream_id	False	Upstream	Id of the Upstream service.
name	False	Auxiliary	Identifier for the Service.	service-xxxx
desc	False	Auxiliary	Description of usage scenarios.	service xxxx
labels	False	Match Rules	Attributes of the Service specified as key-value pairs.	{"version":"v2","build":"16","env":"production"}
enable_websocket	False	Auxiliary	Enables a websocket. Set to `false` by default.
hosts	False	Match Rules	Matches with any one of the multiple `host`s specified in the form of a non-empty list.	["foo.com", "*.bar.com"]
create_time	False	Auxiliary	Epoch timestamp (in seconds) of the created time. If missing, this field will be populated automatically.	1602883670
update_time	False	Auxiliary	Epoch timestamp (in seconds) of the updated time. If missing, this field will be populated automatically.	1602883670

Example configuration:

{
    "id": "1",                # id
    "plugins": {},            # Bound plugin
    "upstream_id": "1",       # upstream id, recommended
    "upstream": {},           # upstream, not recommended
    "name": "service-test",
    "desc": "hello world",
    "enable_websocket": true,
    "hosts": ["foo.com"]
}

Example API usage#

Create a service

curl http://127.0.0.1:9180/apisix/admin/services/201  \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -i -d '
{
    "plugins": {
        "limit-count": {
            "count": 2,
            "time_window": 60,
            "rejected_code": 503,
            "key": "remote_addr"
        }
    },
    "enable_websocket": true,
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:1980": 1
        }
    }
}'

HTTP/1.1 201 Created
...

Add an upstream node to the Service

curl http://127.0.0.1:9180/apisix/admin/services/201 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "upstream": {
        "nodes": {
            "127.0.0.1:1981": 1
        }
    }
}'

HTTP/1.1 200 OK
...

After successful execution, upstream nodes will be updated to:

{
    "127.0.0.1:1980": 1,
    "127.0.0.1:1981": 1
}

Update the weight of an upstream node to the Service

curl http://127.0.0.1:9180/apisix/admin/services/201 \
-H'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "upstream": {
        "nodes": {
            "127.0.0.1:1981": 10
        }
    }
}'

HTTP/1.1 200 OK
...

After successful execution, upstream nodes will be updated to:

{
    "127.0.0.1:1980": 1,
    "127.0.0.1:1981": 10
}

Delete an upstream node for the Service

curl http://127.0.0.1:9180/apisix/admin/services/201 \
-H'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "upstream": {
        "nodes": {
            "127.0.0.1:1980": null
        }
    }
}'

HTTP/1.1 200 OK
...

After successful execution, upstream nodes will be updated to:

{
    "127.0.0.1:1981": 10
}

Replace upstream nodes of the Service

curl http://127.0.0.1:9180/apisix/admin/services/201/upstream/nodes \
-H'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "127.0.0.1:1982": 1
}'

HTTP/1.1 200 OK
...

After successful execution, upstream nodes will not retain the original data, and the entire update is:

{
    "127.0.0.1:1982": 1
}

Response Parameters#

Currently, the response is returned from etcd.

Consumer#

Consumers are users of services and can only be used in conjunction with a user authentication system. A Consumer is identified by a username property. So, for creating a new Consumer, only the HTTP PUT method is supported.

Consumer API#

Consumer resource request address: /apisix/admin/consumers/{username}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/consumers	NULL	Fetches a list of all Consumers.
GET	/apisix/admin/consumers/{username}	NULL	Fetches specified Consumer by username.
PUT	/apisix/admin/consumers	{...}	Create new Consumer.
DELETE	/apisix/admin/consumers/{username}	NULL	Removes the Consumer with the specified username.

Request Body Parameters#

Parameter	Required	Type	Description	Example
username	True	Name	Name of the Consumer.
group_id	False	Name	Group of the Consumer.
plugins	False	Plugin	Plugins that are executed during the request/response cycle. See Plugin for more.
desc	False	Auxiliary	Description of usage scenarios.	customer xxxx
labels	False	Match Rules	Attributes of the Consumer specified as key-value pairs.	{"version":"v2","build":"16","env":"production"}
create_time	False	Auxiliary	Epoch timestamp (in seconds) of the created time. If missing, this field will be populated automatically.	1602883670
update_time	False	Auxiliary	Epoch timestamp (in seconds) of the updated time. If missing, this field will be populated automatically.	1602883670

Example Configuration:

{
    "plugins": {},          # Bound plugin
    "username": "name",     # Consumer name
    "desc": "hello world"   # Consumer desc
}

When bound to a Route or Service, the Authentication Plugin infers the Consumer from the request and does not require any parameters. Whereas, when it is bound to a Consumer, username, password and other information needs to be provided.

Example API usage#

curl http://127.0.0.1:9180/apisix/admin/consumers  \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -i -d '
{
    "username": "jack",
    "plugins": {
        "key-auth": {
            "key": "auth-one"
        },
        "limit-count": {
            "count": 2,
            "time_window": 60,
            "rejected_code": 503,
            "key": "remote_addr"
        }
    }
}'

HTTP/1.1 200 OK
Date: Thu, 26 Dec 2019 08:17:49 GMT
...

{"node":{"value":{"username":"jack","plugins":{"key-auth":{"key":"auth-one"},"limit-count":{"time_window":60,"count":2,"rejected_code":503,"key":"remote_addr","policy":"local"}}},"createdIndex":64,"key":"\/apisix\/consumers\/jack","modifiedIndex":64},"prevNode":{"value":"{\"username\":\"jack\",\"plugins\":{\"key-auth\":{\"key\":\"auth-one\"},\"limit-count\":{\"time_window\":60,\"count\":2,\"rejected_code\":503,\"key\":\"remote_addr\",\"policy\":\"local\"}}}","createdIndex":63,"key":"\/apisix\/consumers\/jack","modifiedIndex":63}}

Since v2.2, we can bind multiple authentication plugins to the same consumer.

Response Parameters#

Currently, the response is returned from etcd.

Upstream#

Upstream is a virtual host abstraction that performs load balancing on a given set of service nodes according to the configured rules.

An Upstream configuration can be directly bound to a Route or a Service, but the configuration in Route has a higher priority. This behavior is consistent with priority followed by the Plugin object.

Upstream API#

Upstream resource request address: /apisix/admin/upstreams/{id}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/upstreams	NULL	Fetch a list of all configured Upstreams.
GET	/apisix/admin/upstreams/{id}	NULL	Fetches specified Upstream by id.
PUT	/apisix/admin/upstreams/{id}	{...}	Creates an Upstream with the specified id.
POST	/apisix/admin/upstreams	{...}	Creates an Upstream and assigns a random id.
DELETE	/apisix/admin/upstreams/{id}	NULL	Removes the Upstream with the specified id.
PATCH	/apisix/admin/upstreams/{id}	{...}	Updates the selected attributes of the specified, existing Upstream. To delete an attribute, set value of attribute set to null.
PATCH	/apisix/admin/upstreams/{id}/{path}	{...}	Updates the attribute specified in the path. The values of other attributes remain unchanged.

Request Body Parameters#

In addition to the equalization algorithm selections, Upstream also supports passive health check and retry for the upstream. See the table below for more details:

Name	Optional	Description	Example
type	optional	Load balancing algorithm to be used, and the default value is `roundrobin`.
nodes	required, can't be used with `service_name`	IP addresses (with optional ports) of the Upstream nodes represented as a hash table or an array. In the hash table, the key is the IP address and the value is the weight of the node for the load balancing algorithm. For hash table case, if the key is IPv6 address with port, then the IPv6 address must be quoted with square brackets. In the array, each item is a hash table with keys `host`, `weight`, and the optional `port` and `priority`. Empty nodes are treated as placeholders and clients trying to access this Upstream will receive a 502 response.	`192.168.1.100:80`, `[::1]:80`
service_name	required, can't be used with `nodes`	Service name used for service discovery.	`a-bootiful-client`
discovery_type	required, if `service_name` is used	The type of service discovery.	`eureka`
hash_on	optional	Only valid if the `type` is `chash`. Supports Nginx variables (`vars`), custom headers (`header`), `cookie` and `consumer`. Defaults to `vars`.
key	optional	Only valid if the `type` is `chash`. Finds the corresponding node `id` according to `hash_on` and `key` values. When `hash_on` is set to `vars`, `key` is a required parameter and it supports Nginx variables. When `hash_on` is set as `header`, `key` is a required parameter, and `header name` can be customized. When `hash_on` is set to `cookie`, `key` is also a required parameter, and `cookie name` can be customized. When `hash_on` is set to `consumer`, `key` need not be set and the `key` used by the hash algorithm would be the authenticated `consumer_name`. If the specified `hash_on` and `key` fail to fetch the values, it will default to `remote_addr`.	`uri`, `server_name`, `server_addr`, `request_uri`, `remote_port`, `remote_addr`, `query_string`, `host`, `hostname`, `arg_*`, `arg_*`
checks	optional	Configures the parameters for the health check.
retries	optional	Sets the number of retries while passing the request to Upstream using the underlying Nginx mechanism. Set according to the number of available backend nodes by default. Setting this to `0` disables retry.
retry_timeout	optional	Timeout to continue with retries. Setting this to `0` disables the retry timeout.
timeout	optional	Sets the timeout (in seconds) for connecting to, and sending and receiving messages to and from the Upstream.	`{"connect": 0.5,"send": 0.5,"read": 0.5}`
name	optional	Identifier for the Upstream.
desc	optional	Description of usage scenarios.
pass_host	optional	Configures the `host` when the request is forwarded to the upstream. Can be one of `pass`, `node` or `rewrite`. Defaults to `pass` if not specified. `pass`- transparently passes the client's host to the Upstream. `node`- uses the host configured in the node of the Upstream. `rewrite`- Uses the value configured in `upstream_host`.
upstream_host	optional	Specifies the host of the Upstream request. This is only valid if the `pass_host` is set to `rewrite`.
scheme	optional	The scheme used when communicating with the Upstream. For an L7 proxy, this value can be one of `http`, `https`, `grpc`, `grpcs`. For an L4 proxy, this value could be one of `tcp`, `udp`, `tls`. Defaults to `http`.
labels	optional	Attributes of the Upstream specified as `key-value` pairs.	{"version":"v2","build":"16","env":"production"}
create_time	optional	Epoch timestamp (in seconds) of the created time. If missing, this field will be populated automatically.	1602883670
update_time	optional	Epoch timestamp (in seconds) of the updated time. If missing, this field will be populated automatically.	1602883670
tls.client_cert	optional, can't be used with `tls.client_cert_id`	Sets the client certificate while connecting to a TLS Upstream.
tls.client_key	optional, can't be used with `tls.client_cert_id`	Sets the client private key while connecting to a TLS Upstream.
tls.client_cert_id	optional, can't be used with `tls.client_cert` and `tls.client_key`	Set the referenced SSL id.
keepalive_pool.size	optional	Sets `keepalive` directive dynamically.
keepalive_pool.idle_timeout	optional	Sets `keepalive_timeout` directive dynamically.
keepalive_pool.requests	optional	Sets `keepalive_requests` directive dynamically.

An Upstream can be one of the following types:

roundrobin: Round robin balancing with weights.
chash: Consistent hash.
ewma: Pick the node with minimum latency. See EWMA Chart for more details.
least_conn: Picks the node with the lowest value of (active_conn + 1) / weight. Here, an active connection is a connection being used by the request and is similar to the concept in Nginx.
user-defined load balancer loaded via require("apisix.balancer.your_balancer").

The following should be considered when setting the hash_on value:

When set to vars, a key is required. The value of the key can be any of the Nginx variables without the $ prefix.
When set to header, a key is required. This is equal to "http_key".
When set to cookie, a key is required. This key is equal to "cookie_key". The cookie name is case-sensitive.
When set to consumer, the key is optional and the key is set to the consumer_name captured from the authentication Plugin.
When set to vars_combinations, the key is required. The value of the key can be a combination of any of the Nginx variables like $request_uri$remote_addr.
When no value is set for either hash_on or key, the key defaults to remote_addr.

The features described below requires APISIX to be run on APISIX-Base:

You can set the scheme to tls, which means "TLS over TCP".

To use mTLS to communicate with Upstream, you can use the tls.client_cert/key in the same format as SSL's cert and key fields.

Or you can reference SSL object by tls.client_cert_id to set SSL cert and key. The SSL object can be referenced only if the type field is client, otherwise the request will be rejected by APISIX. In addition, only cert and key will be used in the SSL object.

To allow Upstream to have a separate connection pool, use keepalive_pool. It can be configured by modifying its child fields.

Example Configuration:

{
    "id": "1",                  # id
    "retries": 1,               # retry times
    "timeout": {                # Set the timeout for connecting, sending and receiving messages, each is 15 seconds.
        "connect":15,
        "send":15,
        "read":15
    },
    "nodes": {"host:80": 100},  # Upstream machine address list, the format is `Address + Port`
                                # is the same as "nodes": [ {"host": "host", "port": 80, "weight": 100} ],
    "type":"roundrobin",
    "checks": {},               # Health check parameters
    "hash_on": "",
    "key": "",
    "name": "upstream-for-test",
    "desc": "hello world",
    "scheme": "http"            # The scheme used when communicating with upstream, the default is `http`
}

Example API usage#

Create an Upstream and modify the data in `nodes`#

Create upstream

curl http://127.0.0.1:9180/apisix/admin/upstreams/100  \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -i -X PUT -d '
{
    "type":"roundrobin",
    "nodes":{
        "127.0.0.1:1980": 1
    }
}'

HTTP/1.1 201 Created
...

Add a node to the Upstream

curl http://127.0.0.1:9180/apisix/admin/upstreams/100 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "nodes": {
        "127.0.0.1:1981": 1
    }
}'

HTTP/1.1 200 OK
...

After successful execution, nodes will be updated to:

{
    "127.0.0.1:1980": 1,
    "127.0.0.1:1981": 1
}

Update the weight of a node to the Upstream

curl http://127.0.0.1:9180/apisix/admin/upstreams/100 \
-H'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "nodes": {
        "127.0.0.1:1981": 10
    }
}'

HTTP/1.1 200 OK
...

After successful execution, nodes will be updated to:

{
    "127.0.0.1:1980": 1,
    "127.0.0.1:1981": 10
}

Delete a node for the Upstream

curl http://127.0.0.1:9180/apisix/admin/upstreams/100 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "nodes": {
        "127.0.0.1:1980": null
    }
}'

HTTP/1.1 200 OK
...

After successful execution, nodes will be updated to:

{
    "127.0.0.1:1981": 10
}

Replace the nodes of the Upstream

curl http://127.0.0.1:9180/apisix/admin/upstreams/100/nodes \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PATCH -i -d '
{
    "127.0.0.1:1982": 1
}'

HTTP/1.1 200 OK
...

After the execution is successful, nodes will not retain the original data, and the entire update is:

{
    "127.0.0.1:1982": 1
}

Proxy client request to `https` Upstream service#

Create a route and configure the upstream scheme as https.

curl -i http://127.0.0.1:9180/apisix/admin/routes/1 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "uri": "/get",
    "upstream": {
        "type": "roundrobin",
        "scheme": "https",
        "nodes": {
            "httpbin.org:443": 1
        }
    }
}'

After successful execution, the scheme when requesting to communicate with the upstream will be https.

Send a request to test.

curl http://127.0.0.1:9080/get

{
"args": {},
"headers": {
    "Accept": "*/*",
    "Host": "127.0.0.1",
    "User-Agent": "curl/7.29.0",
    "X-Amzn-Trace-Id": "Root=1-6058324a-0e898a7f04a5e95b526bb183",
    "X-Forwarded-Host": "127.0.0.1"
},
"origin": "127.0.0.1",
"url": "https://127.0.0.1/get"
}

The request is successful, meaning that the proxy Upstream https is valid.

note

Each node can be configured with a priority. A node with low priority will only be used when all the nodes with higher priority have been tried or are unavailable.

As the default priority is 0, nodes with negative priority can be configured as a backup.

For example:

{
  "uri": "/hello",
  "upstream": {
    "type": "roundrobin",
    "nodes": [
      { "host": "127.0.0.1", "port": 1980, "weight": 2000 },
      { "host": "127.0.0.1", "port": 1981, "weight": 1, "priority": -1 }
    ],
    "checks": {
      "active": {
        "http_path": "/status",
        "healthy": {
          "interval": 1,
          "successes": 1
        },
        "unhealthy": {
          "interval": 1,
          "http_failures": 1
        }
      }
    }
  }
}

Node 127.0.0.2 will be used only after 127.0.0.1 is tried or unavailable. It can therefore act as a backup for the node 127.0.0.1.

Response Parameters#

Currently, the response is returned from etcd.

SSL#

SSL API#

SSL resource request address: /apisix/admin/ssls/{id}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/ssls	NULL	Fetches a list of all configured SSL resources.
GET	/apisix/admin/ssls/{id}	NULL	Fetch specified resource by id.
PUT	/apisix/admin/ssls/{id}	{...}	Creates a resource with the specified id.
POST	/apisix/admin/ssls	{...}	Creates a resource and assigns a random id.
DELETE	/apisix/admin/ssls/{id}	NULL	Removes the resource with the specified id.

Request Body Parameters#

Parameter	Required	Type	Description	Example
cert	True	Certificate	HTTPS certificate. This field supports saving the value in Secret Manager using the APISIX Secret resource.
key	True	Private key	HTTPS private key. This field supports saving the value in Secret Manager using the APISIX Secret resource.
certs	False	An array of certificates	Used for configuring multiple certificates for the same domain excluding the one provided in the `cert` field.
keys	False	An array of private keys	Private keys to pair with the `certs`.
client.ca	False	Certificate	Sets the CA certificate that verifies the client. Requires OpenResty 1.19+.
client.depth	False	Certificate	Sets the verification depth in client certificate chains. Defaults to 1. Requires OpenResty 1.19+.
client.skip_mtls_uri_regex	False	An array of regular expressions, in PCRE format	Used to match URI, if matched, this request bypasses the client certificate checking, i.e. skip the MTLS.	["/hello[0-9]+", "/foobar"]
snis	True, only if `type` is `server`	Match Rules	A non-empty array of HTTPS SNI
labels	False	Match Rules	Attributes of the resource specified as key-value pairs.	{"version":"v2","build":"16","env":"production"}
create_time	False	Auxiliary	Epoch timestamp (in seconds) of the created time. If missing, this field will be populated automatically.	1602883670
update_time	False	Auxiliary	Epoch timestamp (in seconds) of the updated time. If missing, this field will be populated automatically.	1602883670
type	False	Auxiliary	Identifies the type of certificate, default `server`.	`client` Indicates that the certificate is a client certificate, which is used when APISIX accesses the upstream; `server` Indicates that the certificate is a server-side certificate, which is used by APISIX when verifying client requests.
status	False	Auxiliary	Enables the current SSL. Set to `1` (enabled) by default.	`1` to enable, `0` to disable

Example Configuration:

{
    "id": "1",           # id
    "cert": "cert",      # Certificate
    "key": "key",        # Private key
    "snis": ["t.com"]    # https SNI
}

See Certificate for more examples.

Global Rule#

Sets Plugins which run globally. i.e these Plugins will be run before any Route/Service level Plugins.

Global Rule API#

Global Rule resource request address: /apisix/admin/global_rules/{id}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/global_rules	NULL	Fetches a list of all Global Rules.
GET	/apisix/admin/global_rules/{id}	NULL	Fetches specified Global Rule by id.
PUT	/apisix/admin/global_rules/{id}	{...}	Creates a Global Rule with the specified id.
DELETE	/apisix/admin/global_rules/{id}	NULL	Removes the Global Rule with the specified id.
PATCH	/apisix/admin/global_rules/{id}	{...}	Updates the selected attributes of the specified, existing Global Rule. To delete an attribute, set value of attribute set to null.
PATCH	/apisix/admin/global_rules/{id}/{path}	{...}	Updates the attribute specified in the path. The values of other attributes remain unchanged.

Request Body Parameters#

Parameter	Required	Description	Example
plugins	True	Plugins that are executed during the request/response cycle. See Plugin for more.
create_time	False	Epoch timestamp (in seconds) of the created time. If missing, this field will be populated automatically.	1602883670
update_time	False	Epoch timestamp (in seconds) of the updated time. If missing, this field will be populated automatically.	1602883670

Consumer group#

Group of Plugins which can be reused across Consumers.

Consumer group API#

Consumer group resource request address: /apisix/admin/consumer_groups/{id}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/consumer_groups	NULL	Fetches a list of all Consumer groups.
GET	/apisix/admin/consumer_groups/{id}	NULL	Fetches specified Consumer group by id.
PUT	/apisix/admin/consumer_groups/{id}	{...}	Creates a new Consumer group with the specified id.
DELETE	/apisix/admin/consumer_groups/{id}	NULL	Removes the Consumer group with the specified id.
PATCH	/apisix/admin/consumer_groups/{id}	{...}	Updates the selected attributes of the specified, existing Consumer group. To delete an attribute, set value of attribute set to null.
PATCH	/apisix/admin/consumer_groups/{id}/{path}	{...}	Updates the attribute specified in the path. The values of other attributes remain unchanged.

Request Body Parameters#

Parameter	Required	Description	Example
plugins	True	Plugins that are executed during the request/response cycle. See Plugin for more.
desc	False	Description of usage scenarios.	customer xxxx
labels	False	Attributes of the Consumer group specified as key-value pairs.	{"version":"v2","build":"16","env":"production"}
create_time	False	Epoch timestamp (in seconds) of the created time. If missing, this field will be populated automatically.	1602883670
update_time	False	Epoch timestamp (in seconds) of the updated time. If missing, this field will be populated automatically.	1602883670

Plugin config#

Group of Plugins which can be reused across Routes.

Plugin Config API#

Plugin Config resource request address: /apisix/admin/plugin_configs/{id}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/plugin_configs	NULL	Fetches a list of all Plugin configs.
GET	/apisix/admin/plugin_configs/{id}	NULL	Fetches specified Plugin config by id.
PUT	/apisix/admin/plugin_configs/{id}	{...}	Creates a new Plugin config with the specified id.
DELETE	/apisix/admin/plugin_configs/{id}	NULL	Removes the Plugin config with the specified id.
PATCH	/apisix/admin/plugin_configs/{id}	{...}	Updates the selected attributes of the specified, existing Plugin config. To delete an attribute, set value of attribute set to null.
PATCH	/apisix/admin/plugin_configs/{id}/{path}	{...}	Updates the attribute specified in the path. The values of other attributes remain unchanged.

Request Body Parameters#

Parameter	Required	Description	Example
plugins	True	Plugins that are executed during the request/response cycle. See Plugin for more.
desc	False	Description of usage scenarios.	customer xxxx
labels	False	Attributes of the Plugin config specified as key-value pairs.	{"version":"v2","build":"16","env":"production"}
create_time	False	Epoch timestamp (in seconds) of the created time. If missing, this field will be populated automatically.	1602883670
update_time	False	Epoch timestamp (in seconds) of the updated time. If missing, this field will be populated automatically.	1602883670

Plugin Metadata#

Plugin Metadata API#

Plugin Metadata resource request address: /apisix/admin/plugin_metadata/{plugin_name}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/plugin_metadata/{plugin_name}	NULL	Fetches the metadata of the specified Plugin by `plugin_name`.
PUT	/apisix/admin/plugin_metadata/{plugin_name}	{...}	Creates metadata for the Plugin specified by the `plugin_name`.
DELETE	/apisix/admin/plugin_metadata/{plugin_name}	NULL	Removes metadata for the Plugin specified by the `plugin_name`.

Request Body Parameters#

A JSON object defined according to the metadata_schema of the Plugin ({plugin_name}).

Example Configuration:

curl http://127.0.0.1:9180/apisix/admin/plugin_metadata/example-plugin  \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -i -X PUT -d '
{
    "skey": "val",
    "ikey": 1
}'

HTTP/1.1 201 Created
Date: Thu, 26 Dec 2019 04:19:34 GMT
Content-Type: text/plain

Plugin#

Plugin API#

Plugin resource request address: /apisix/admin/plugins/{plugin_name}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/plugins/list	NULL	Fetches a list of all Plugins.
GET	/apisix/admin/plugins/{plugin_name}	NULL	Fetches the specified Plugin by `plugin_name`.

Request Body Parameters#

The Plugin ({plugin_name}) of the data structure.

Example API usage:#

curl "http://127.0.0.1:9180/apisix/admin/plugins/list" \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1'

["zipkin","request-id",...]

curl "http://127.0.0.1:9180/apisix/admin/plugins/key-auth" -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1'

{"$comment":"this is a mark for our injected plugin schema","properties":{"header":{"default":"apikey","type":"string"},"hide_credentials":{"default":false,"type":"boolean"},"_meta":{"properties":{"filter":{"type":"array","description":"filter determines whether the plugin needs to be executed at runtime"},"disable":{"type":"boolean"},"error_response":{"oneOf":[{"type":"string"},{"type":"object"}]},"priority":{"type":"integer","description":"priority of plugins by customized order"}},"type":"object"},"query":{"default":"apikey","type":"string"}},"type":"object"}

tip

You can use the /apisix/admin/plugins?all=true API to get all properties of all plugins.

Each Plugin has the attributes name, priority, type, schema, consumer_schema and version.

Defaults to only L7 Plugins. If you need to get attributes of L4 / Stream Plugins, use /apisix/admin/plugins?all=true&subsystem=stream.

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/plugins?all=true	NULL	Fetches all attributes from all Plugins.

Request Arguments#

Name	Description	Default
subsystem	The subsystem of the Plugins.	http

Stream Route#

Route used in the Stream Proxy.

Stream Route API#

Stream Route resource request address: /apisix/admin/stream_routes/{id}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/stream_routes	NULL	Fetches a list of all configured Stream Routes.
GET	/apisix/admin/stream_routes/{id}	NULL	Fetches specified Stream Route by id.
PUT	/apisix/admin/stream_routes/{id}	{...}	Creates a Stream Route with the specified id.
POST	/apisix/admin/stream_routes	{...}	Creates a Stream Route and assigns a random id.
DELETE	/apisix/admin/stream_routes/{id}	NULL	Removes the Stream Route with the specified id.

Request Body Parameters#

Parameter	Required	Type	Description	Example
upstream	False	Upstream	Configuration of the Upstream.
upstream_id	False	Upstream	Id of the Upstream service.
remote_addr	False	IPv4, IPv4 CIDR, IPv6	Filters Upstream forwards by matching with client IP.	"127.0.0.1" or "127.0.0.1/32" or "::1"
server_addr	False	IPv4, IPv4 CIDR, IPv6	Filters Upstream forwards by matching with APISIX Server IP.	"127.0.0.1" or "127.0.0.1/32" or "::1"
server_port	False	Integer	Filters Upstream forwards by matching with APISIX Server port.	9090
sni	False	Host	Server Name Indication.	"test.com"
protocol.name	False	String	Name of the protocol proxyed by xRPC framework.	"redis"
protocol.conf	False	Configuration	Protocol-specific configuration.

To learn more about filtering in stream proxies, check this document.

Secret#

Secret means Secrets Management, which could use any secret manager supported, e.g. vault.

Secret API#

Secret resource request address: /apisix/admin/secrets/{secretmanager}/{id}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/secrets	NULL	Fetches a list of all secrets.
GET	/apisix/admin/secrets/{manager}/{id}	NULL	Fetches specified secrets by id.
PUT	/apisix/admin/secrets/{manager}	{...}	Create new secrets configuration.
DELETE	/apisix/admin/secrets/{manager}/{id}	NULL	Removes the secrets with the specified id.
PATCH	/apisix/admin/secrets/{manager}/{id}	{...}	Updates the selected attributes of the specified, existing secrets. To delete an attribute, set value of attribute set to null.
PATCH	/apisix/admin/secrets/{manager}/{id}/{path}	{...}	Updates the attribute specified in the path. The values of other attributes remain unchanged.

Request Body Parameters#

When {secretmanager} is vault:

Parameter	Required	Type	Description
uri	True	URI	URI of the vault server.
prefix	True	string	key prefix
token	True	string	vault token.

Example Configuration:

{
    "uri": "https://localhost/vault",
    "prefix": "/apisix/kv",
    "token": "343effad"
}

Example API usage:

curl -i http://127.0.0.1:9180/apisix/admin/secrets/vault/test2 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "uri": "http://xxx/get",
    "prefix" : "apisix",
    "token" : "apisix"
}'

HTTP/1.1 200 OK
...

{"key":"\/apisix\/secrets\/vault\/test2","value":{"id":"vault\/test2","token":"apisix","prefix":"apisix","update_time":1669625828,"create_time":1669625828,"uri":"http:\/\/xxx\/get"}}

Response Parameters#

Currently, the response is returned from etcd.

Proto#

Proto is used to store protocol buffers so that APISIX can communicate in gRPC.

See grpc-transcode plugin doc for more examples.

Proto API#

Proto resource request address: /apisix/admin/protos/{id}

Request Methods#

Method	Request URI	Request Body	Description
GET	/apisix/admin/protos	NULL	List all Protos.
GET	/apisix/admin/protos/{id}	NULL	Get a Proto by id.
PUT	/apisix/admin/protos/{id}	{...}	Create or update a Proto with the given id.
POST	/apisix/admin/protos	{...}	Create a Proto with a random id.
DELETE	/apisix/admin/protos/{id}	NULL	Delete Proto by id.

Request Body Parameters#

Parameter	Required	Type	Description	Example
content	True	String	content of `.proto` or `.pb` files	See here
create_time	False	Epoch timestamp (in seconds) of the created time. If missing, this field will be populated automatically.	1602883670
update_time	False	Epoch timestamp (in seconds) of the updated time. If missing, this field will be populated automatically.	1602883670

Description#

Configuration#

tip

Using environment variables#

V3 new feature#

Support new response body format#

Support paging query#

Support filtering query#

tip

Route#

Route API#

Request Methods#

URI Request Parameters#

Request Body Parameters#

Example API usage#

Response Parameters#

Service#

Service API#

Request Methods#

Request Body Parameters#

Example API usage#

Response Parameters#

Consumer#

Consumer API#

Request Methods#

Request Body Parameters#

Example API usage#

Response Parameters#

Upstream#

Upstream API#

Request Methods#

Request Body Parameters#

Example API usage#

Create an Upstream and modify the data in nodes#

Proxy client request to https Upstream service#

note

Response Parameters#

SSL#

SSL API#

Request Methods#

Request Body Parameters#

Global Rule#

Global Rule API#

Request Methods#

Request Body Parameters#

Consumer group#

Consumer group API#

Request Methods#

Request Body Parameters#

Plugin config#

Plugin Config API#

Request Methods#

Request Body Parameters#

Plugin Metadata#

Plugin Metadata API#

Request Methods#

Request Body Parameters#

Plugin#

Plugin API#

Request Methods#

Request Body Parameters#

Example API usage:#

tip

Request Methods#

Request Arguments#

Stream Route#

Stream Route API#

Request Methods#

Request Body Parameters#

Secret#

Secret API#

Request Methods#

Request Body Parameters#

Response Parameters#

Proto#

Proto API#

Request Methods#

Request Body Parameters#

Create an Upstream and modify the data in `nodes`#

Proxy client request to `https` Upstream service#