Re-added common errors.

.rubocop_todo.yml

@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2025-09-21 15:55:34 UTC using RuboCop version 1.80.2.
+# on 2025-09-30 11:28:27 UTC using RuboCop version 1.80.2.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -20,7 +20,7 @@ Metrics/BlockLength:
 # Offense count: 1
 # Configuration parameters: CountComments, CountAsOne.
 Metrics/ClassLength:
-  Max: 132
+  Max: 135
 
 # Offense count: 2
 # Configuration parameters: AllowedMethods, AllowedPatterns.

methods/_errors/common.json

@@ -0,0 +1,32 @@
+{
+    "errors": {
+        "ratelimited": "The request has been ratelimited. Refer to the Retry-After header for when to retry the request.",
+        "unknown_method": "This method is currently not available.",
+        "access_denied": "Access to a resource specified in the request is denied.",
+        "account_inactive": "Authentication token is for a deleted user or workspace when using a bot token.",
+        "deprecated_endpoint": "The endpoint has been deprecated.",
+        "ekm_access_denied": "Administrators have suspended the ability to post a message.",
+        "enterprise_is_restricted": "The method cannot be called from an Enterprise.",
+        "is_bot": "This method cannot be called by a legacy bot.",
+        "method_deprecated": "The method has been deprecated.",
+        "missing_scope": "The token used is not granted the specific scope permissions required to complete this request.",
+        "not_allowed_token_type": "The token type used in this request is not allowed.",
+        "not_authed": "No authentication token provided.",
+        "no_permission": "The workspace token used in this request does not have the permissions necessary to complete the request. Make sure your app is a member of the conversation it's attempting to post a message to.",
+        "org_login_required": "The workspace is undergoing an enterprise migration and will not be available until migration is complete.",
+        "token_expired": "Authentication token has expired.",
+        "token_revoked": "Authentication token is for a deleted user or workspace or the app has been removed when using a user token.",
+        "two_factor_setup_required": "Two factor setup is required.",
+        "accesslimited": "Access to this method is limited on the current network.",
+        "fatal_error": "The server could not complete your operation(s) without encountering a catastrophic error. It's possible some aspect of the operation succeeded before the error was raised.",
+        "invalid_arg_name": "The method was passed an argument whose name falls outside the bounds of accepted or expected values. This includes very long names and names with non-alphanumeric characters other than _. If you get this error, it is typically an indication that you have made a very malformed API call.",
+        "invalid_array_arg": "The method was passed an array as an argument. Please only input valid strings.",
+        "invalid_charset": "The method was called via a POST request, but the charset specified in the Content-Type header was invalid. Valid charset names are: utf-8 iso-8859-1.",
+        "invalid_form_data": "The method was called via a POST request with Content-Type application/x-www-form-urlencoded or multipart/form-data, but the form data was either missing or syntactically invalid.",
+        "invalid_post_type": "The method was called via a POST request, but the specified Content-Type was invalid. Valid types are: application/json application/x-www-form-urlencoded multipart/form-data text/plain.",
+        "missing_post_type": "The method was called via a POST request and included a data payload, but the request did not include a Content-Type header.",
+        "request_timeout": "The method was called via a POST request, but the POST data was either missing or truncated.",
+        "service_unavailable": "The service is temporarily unavailable.",
+        "team_added_to_org": "The workspace associated with your request is currently undergoing migration to an Enterprise Organization. Web API and other platform operations will be intermittently unavailable until the transition is complete."
+    }
+}

tasks/lib/slack_api/methods_generator.rb

@@ -32,6 +32,10 @@ def generate!
 
     private
 
+    def common_errors
+      @common_errors ||= JSON.load_file('methods/_errors/common.json')['errors']
+    end
+
     def process_method(data)
       args, fields = parse_args(data)
 
@@ -45,7 +49,7 @@ def process_method(data)
         desc: strip_markdown(data['desc']),
         args: args,
         response: response,
-        errors: errors
+        errors: common_errors.merge(errors).sort.to_h
       }.merge(fields)
 
       patch_filename = "methods/_patches/#{data['group']}/#{data['name']}.json"

tasks/methods.rake

@@ -7,7 +7,10 @@ namespace :api do
     task :validate do
       schema = File.read('schemas/methods.json')
       validator = SlackApi::SpecValidator.new(schema)
-      Dir.glob('methods/**/*.json').grep_v(%r{/_patches\b}).each do |file|
+      Dir.glob('methods/**/*.json')
+        .grep_v(%r{/_patches\b})
+        .grep_v(%r{/_errors\b})
+        .each do |file|
         puts file
         abort "Invalid file format: #{file}" unless validator.valid?(file)
       end