emqx/apps/emqx_resource
Kjell Winblad 67acdf0888 feat: add clickhouse database bridge
This commit adds a Clickhouse bridge to EMQX 5. The bridge is similar to
the Clickhouse bridge in the 4.4, but adds the possibility to use
different formats (such as JSON) for values to be inserted.
2023-03-02 12:22:11 +01:00
..
i18n Merge pull request #9892 from zmstone/0202-docs-cosmetic 2023-02-02 15:43:58 +01:00
include perf: avoid getting metrics (gen_server:call) for each resource lookup 2023-02-10 19:40:37 +01:00
src feat: add clickhouse database bridge 2023-03-02 12:22:11 +01:00
test test: drop custom loop_wait in favor of snabkaffe's ?retry 2023-02-24 18:16:35 +03:00
README.md feat: add test cases for batching query 2022-08-10 00:34:35 +08:00
rebar.config fix: drop no longer supported dialyzer option 2022-12-16 13:45:05 +03:00

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.erl for a minimal emqx_resource implementation;
  • test/emqx_resource_SUITE.erl for examples of emqx_resource usage.