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			URI of the 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,...]	Max size of each batch
inactive_timeout	integer	optional	5	[1,...]	Maximum age in seconds when the buffer will be flushed if inactive
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		Whether to include the request body
concat_method	string	optional	"json"		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 on how to enable the http-logger for a specific route.

curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
      "plugins": {
            "http-logger": {
                "uri": "http://127.0.0.1:80/postendpoint?param=1",
            }
       },
      "upstream": {
           "type": "roundrobin",
           "nodes": {
               "127.0.0.1:1980": 1
           }
      },
      "uri": "/hello"
}'

Test Plugin

success:

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

Metadata

Name	Type	Requirement	Default	Valid	Description
log_format	object	optional			Log format declared as JSON object. Only string is supported in the `value` part. If the value starts with `$`, the value is 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.

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
        }
    }
}'

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