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mqtt-proxy.md

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Summary

Name

The plugin mqtt-proxy only works in stream model, it help you to dynamic load balance by client_id of MQTT.

And this plugin both support MQTT protocol 3.1.* and 5.0.

Attributes

Name Type Requirement Default Valid Description
protocol_name string required Name of protocol, shoulds be MQTT in normal.
protocol_level integer required Level of protocol, it should be 4 for MQTT 3.1.*. it should be 5 for MQTT 5.0.
upstream.ip string required IP address of upstream, will forward current request to.
upstream.port number required Port of upstream, will forward current request to.

How To Enable

To enable this plugin, we need to enable the stream_proxy configuration in conf/config.yaml first. For example, the following configuration represents listening on the 9100 TCP port.

    ...
    router:
        http: 'radixtree_uri'
        ssl: 'radixtree_sni'
    stream_proxy:                 # TCP/UDP proxy
      tcp:                        # TCP proxy port list
        - 9100
    dns_resolver:
    ...

Then send the MQTT request to port 9100.

Creates a stream route, and enable plugin mqtt-proxy.

curl http://127.0.0.1:9080/apisix/admin/stream_routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "remote_addr": "127.0.0.1",
    "plugins": {
        "mqtt-proxy": {
            "protocol_name": "MQTT",
            "protocol_level": 4,
            "upstream": {
                "ip": "127.0.0.1",
                "port": 1980
            }
        }
    }
}'

Delete Plugin

$ curl http://127.0.0.1:2379/v2/keys/apisix/stream_routes/1 -X DELETE

The mqtt-proxy plugin has been deleted now.