Version: 2.7

http-logger

Summary#

Name
Attributes
How To Enable
Test Plugin
Metadata
Disable Plugin

Name#

http-logger is a plugin which push Log data requests to HTTP/HTTPS servers.

This will provide the ability to send Log data requests as JSON objects to Monitoring tools and other HTTP servers.

Attributes#

Name	Type	Requirement	Default	Valid	Description
uri	string	required			The URI of the `HTTP/HTTPS` server.
auth_header	string	optional	""		Any authorization headers.
timeout	integer	optional	3	[1,...]	Time to keep the connection alive after sending a request.
name	string	optional	"http logger"		A unique identifier to identity the logger.
batch_max_size	integer	optional	1000	[1,...]	Set the maximum number of logs sent in each batch. When the number of logs reaches the set maximum, all logs will be automatically pushed to the `HTTP/HTTPS` service.
inactive_timeout	integer	optional	5	[1,...]	The maximum time to refresh the buffer (in seconds). When the maximum refresh time is reached, all logs will be automatically pushed to the `HTTP/HTTPS` service regardless of whether the number of logs in the buffer reaches the maximum number set.
buffer_duration	integer	optional	60	[1,...]	Maximum age in seconds of the oldest entry in a batch before the batch must be processed.
max_retry_count	integer	optional	0	[0,...]	Maximum number of retries before removing from the processing pipe line.
retry_delay	integer	optional	1	[0,...]	Number of seconds the process execution should be delayed if the execution fails.
include_req_body	boolean	optional	false	[false, true]	Whether to include the request body. false: indicates that the requested body is not included; true: indicates that the requested body is included.
concat_method	string	optional	"json"	["json", "new_line"]	Enum type: `json` and `new_line`. json: use `json.encode` for all pending logs. new_line: use `json.encode` for each pending log and concat them with "\n" line.

How To Enable#

The following is an example of how to enable the http-logger for a specific route. You could generate a mock HTTP server at mockbin to view the logs.

curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '{      "plugins": {            "http-logger": {                "uri": "http://mockbin.org/bin/:ID"            }       },      "upstream": {           "type": "roundrobin",           "nodes": {               "127.0.0.1:1980": 1           }      },      "uri": "/hello"}'

Test Plugin#

success:

$ curl -i http://127.0.0.1:9080/helloHTTP/1.1 200 OK...hello, world

Metadata#

Name	Type	Requirement	Default	Valid	Description
log_format	object	optional	{"host": "$host", "@timestamp": "$time_iso8601", "client_ip": "$remote_addr"}		Log format declared as JSON object. Only string is supported in the `value` part. If the value starts with `$`, it means to get `APISIX` variables or Nginx variable.

Note that the metadata configuration is applied in global scope, which means it will take effect on all Route or Service which use http-logger plugin.

APISIX Variables

Variable Name	Description	Usage Example
route_id	id of `route`	$route_id
route_name	name of `route`	$route_name
service_id	id of `service`	$service_id
service_name	name of `service`	$service_name
consumer_name	username of `consumer`	$consumer_name

Example#

curl http://127.0.0.1:9080/apisix/admin/plugin_metadata/http-logger -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '{    "log_format": {        "host": "$host",        "@timestamp": "$time_iso8601",        "client_ip": "$remote_addr"    }}'

It is expected to see some logs like that:

{"host":"localhost","@timestamp":"2020-09-23T19:05:05-04:00","client_ip":"127.0.0.1","route_id":"1"}{"host":"localhost","@timestamp":"2020-09-23T19:05:05-04:00","client_ip":"127.0.0.1","route_id":"1"}

Disable Plugin#

Remove the corresponding json configuration in the plugin configuration to disable the http-logger. APISIX plugins are hot-reloaded, therefore no need to restart APISIX.

$ curl http://127.0.0.1:2379/apisix/admin/routes/1  -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d value='{    "uri": "/hello",    "plugins": {},    "upstream": {        "type": "roundrobin",        "nodes": {            "127.0.0.1:1980": 1        }    }}'