product-microgateway
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Migrate from external authz to external processing filter
Describe your problem(s)
Currently enforcer is communicated with ext_authz filter in the router. As envoy has a new filter, external processing filter[1] is solely written for the purpose of intercepting request/response, let's migrate to external processing filter once it's production ready.
[1] https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_filters/ext_proc_filter