golang: add callback method for http plugin config destruction (#38597) #7
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…proxy#38597) This enables fine grained control over the lifecycle of golang filter config in sync with C++. Some use cases store states and resources in the config object that needs to be cleaned when config is deleted or renewed. The current design uses a Config interface, to minimise changes and avoid breaking existing code. I have an alternative design that adds a Destroy function in the StreamFilterConfigParser interface instead of introducing an interface. Let me know what you think, given the current go api is not considered stable and breaking change should be acceptable. Fixes envoyproxy#38557 Signed-off-by: François JACQUES <fjacques@murex.com>
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This enables fine grained control over the lifecycle of golang filter config in sync with C++.
Some use cases store states and resources in the config object that needs to be cleaned when config is deleted or renewed. The current design uses a Config interface, to minimise changes and avoid breaking existing code.
I have an alternative design that adds a Destroy function in the StreamFilterConfigParser interface instead of introducing an interface. Let me know what you think, given the current go api is not considered stable and breaking change should be acceptable.
Fixes envoyproxy#38557
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