AshHooks.Errors (AshHooks v1.0.0)

Splode error hierarchy for ash_hooks.

Inbound pipeline failures surface as :invalid-class errors (bad signature, missing secret, stale timestamp, unknown event type, malformed payload). Anything unrecognized lands in :unknown.

Summary

Types

class()

class_module()

error_class()

t()

Functions

from_reason(other, opts)

Maps a provider callback's reason atom (the {:error, reason} shape the behaviour returns) to its splode error, passing opts through to exception/1.

splode_error?(arg1, splode)

traverse_errors(error_or_errors, fun)

Traverses errors, calling fun for each leaf error, and returns a nested map of results grouped by each error's path.

unwrap!(result, opts \\ nil)

Raises an error if the result is an error, otherwise returns the result

Types

class()

@type class() :: %{
  :__struct__ => class_module(),
  :__exception__ => true,
  :errors => [t()],
  :class => error_class(),
  :bread_crumbs => [String.t()],
  :vars => Keyword.t(),
  :stacktrace => Splode.Stacktrace.t() | nil,
  :context => map(),
  optional(atom()) => any()
}

class_module()

@type class_module() :: AshHooks.Errors.Unknown | AshHooks.Errors.Invalid

error_class()

@type error_class() :: :unknown | :invalid

t()

@type t() :: %{
  :__struct__ => module(),
  :__exception__ => true,
  :class => error_class(),
  :bread_crumbs => [String.t()],
  :vars => Keyword.t(),
  :stacktrace => Splode.Stacktrace.t() | nil,
  :context => map(),
  optional(atom()) => any()
}

Functions

from_reason(other, opts)

@spec from_reason(atom(), Keyword.t()) :: struct()

Maps a provider callback's reason atom (the {:error, reason} shape the behaviour returns) to its splode error, passing opts through to exception/1.

Raises on an unmapped reason — that is a programming error on the caller's side, not webhook input.

splode_error?(arg1, splode)

traverse_errors(error_or_errors, fun)

Traverses errors, calling fun for each leaf error, and returns a nested map of results grouped by each error's path.

See Splode.traverse_errors/2 for full documentation.

Example

iex> Elixir.AshHooks.Errors.traverse_errors(error, fn error ->
...>   Exception.message(error)
...> end)
%{name: ["name is required"]}

unwrap!(result, opts \\ nil)

Raises an error if the result is an error, otherwise returns the result

Alternatively, you can use the defsplode macro, which does this automatically.

Options

:error_opts - Options to pass to to_error/2 when converting the returned error
:unknown_error_opts - Options to pass to the unknown error if the function returns only :error. not necessary if your function always returns {:error, error}.

Examples

def function(arg) do

case do_something(arg) do
  :success -> :ok
  {:success, result} -> {:ok, result}
  {:error, error} -> {:error, error}
end

end

def function!(arg) do

YourErrors.unwrap!(function(arg))

end