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emqx/apps/emqx_resource
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Thales Macedo Garitezi cc8631223e fix(schema): avoid `function_clause` error when compacting errors 
Fixes https://emqx.atlassian.net/browse/EMQX-10168

The bridge probe API displayed the typecheck errors for the new
timeout duration types correctly, but when an user tried to create the
bridge anyway a `function_clause` error was raised when trying to
compact hocon errors:

```
09:47:19.045 [warning] [exception: :error, path: '/bridges', reason: {:case_clause, {:error, {:config_update_crashed, :function_clause}}}, stacktrace: [{:emqx_bridge_api, :create_or_update_bridge, 4, [file: '/home/thales/dev/emqx/emqx/apps/emqx_bridge/src/emqx_bridge_api.erl', line: 602]}, {:minirest_handler, :apply_callback, 3, [file: '/home/thales/dev/emqx/emqx/deps/minirest/src/minirest_handler.erl', line: 111]}, {:minirest_handler, :handle, 2, [file: '/home/thales/dev/emqx/emqx/deps/minirest/src/minirest_handler.erl', line: 44]}, {:minirest_handler, :init, 2, [file: '/home/thales/dev/emqx/emqx/deps/minirest/src/minirest_handler.erl', line: 27]}, {:cowboy_handler, :execute, 2, [file: '/home/thales/dev/emqx/emqx/deps/cowboy/src/cowboy_handler.erl', line: 41]}, {:cowboy_stream_h, :execute, 3, [file: '/home/thales/dev/emqx/emqx/deps/cowboy/src/cowboy_stream_h.erl', line: 318]}, {:cowboy_stream_h, :request_process, 3, [file: '/home/thales/dev/emqx/emqx/deps/cowboy/src/cowboy_stream_h.erl', line: 302]}, {:proc_lib, :init_p_do_apply, 3, [file: 'proc_lib.erl', line: 240]}]]
```

This fixes the issue so that both APIs return more friendly error messages.
 		2023-06-07 10:34:58 -03:00
..
include refactor(resource): rename `request_timeout` -> `request_ttl` 2023-06-01 13:01:53 -03:00
src Merge pull request #10930 from thalesmg/max-int-timeout-v50 2023-06-05 12:51:36 -03:00
test fix(schema): avoid `function_clause` error when compacting errors 2023-06-07 10:34:58 -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

README.md

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.