3232ab5ea3
We wrap the reset of the process trace meta data in the after clause of a try-after-end expression to be sure we never get any lingering incorrect meta data. |
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| rebar.config | ||
emqx_resource
The emqx_resource is a behavior that manages configuration specs and runtime states
for resources like mysql or redis backends.
It is intended to be used by the emqx_bridges and all other resources that need CRUD operations to their configs, and need to initialize the states when creating.
There can be foreign references between resource instances via resource-id. So they may find each other via this Id.
The main idea of the emqx resource is to put all the general code in a common lib, including
the config operations (like config validation, config dump back to files), and the state management.
And we put all the specific codes to the callback modules.
See
test/emqx_connector_demo.erlfor a minimalemqx_resourceimplementation;test/emqx_resource_SUITE.erlfor examples ofemqx_resourceusage.