The append_path property

You might also want to always append the listen_path to the elected upstream target. To do so, use the append_path boolean property by configuring an API like this:

{
    "name": "My API",
    "proxy": {
        "append_path" : true,
        "listen_path": "/service/*",
        "upstreams" : {
            "balancing": "roundrobin",
            "targets": [
                {"target": "http://my-api.com/example"}
            ]
        },
    }
}

Enabling this flag instructs Janus that when proxying this API, it should always include the matching URI prefix in the upstream request's URI. For example, the following client's request to the API configured as above:

GET /service/path/to/resource HTTP/1.1
Host: my-api.com

Will cause Janus to send the following request to your upstream service:

GET /example/service/path/to/resource HTTP/1.1
Host: my-api.com