Module ngx_stream_mqtt_preread_module
| Example Configuration Directives mqtt_preread Embedded Variables |
The ngx_stream_mqtt_preread_module module (1.23.4) allows
extracting information from the CONNECT message
of the Message Queuing Telemetry Transport protocol (MQTT) versions
3.1.1
and
5.0,
for example, a username or a client ID.
This module is available as part of our commercial subscription.
Example Configuration
mqtt_preread on; return $mqtt_preread_clientid;
Directives
| Syntax: |
mqtt_preread |
|---|---|
| Default: |
mqtt_preread off; |
| Context: |
stream, server |
Enables extracting information from the MQTT CONNECT message at the preread phase.
Embedded Variables
$mqtt_preread_clientid-
the
clientidvalue from the CONNECT message $mqtt_preread_username-
the
usernamevalue from the CONNECT message