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lamda function

Default

By default, device and user, keep in the header, like the following

X-Device-ID: FB360513-78C1-4F27-BDC2-09848A20C474
X-User-ID: 10341243

Customized

in the httptables-manager，a field of table role_types, the name is lamda, keep in the getattr function

  • User
    • "return ngx.req.get_headers()['X-User-ID']"
  • Device
    • "return ngx.req.get_headers()['X-Device-ID']"

lamda is a lua expression, tells httptables how to get data, you can modify it according to your needs.

Dev&Debug

httptables integrated a debugging tool, to test lamda string

[vagrant@vagrant-172-28-32-105 ~]$ curl -d "lamda=return ngx.req.get_headers()['X-Test-ID']" -H "X-Test-ID: hello,httptables" "http://127.0.0.1:8001/admin/lamda"
hello,httptables

If you have more needs, please create a new issues.