Class: GraphQL::Schema::RescueMiddleware
- Inherits:
-
Object
- Object
- GraphQL::Schema::RescueMiddleware
- Defined in:
- lib/graphql/schema/rescue_middleware.rb
Overview
- Store a table of errors & handlers
- Rescue errors in a middleware chain, then check for a handler
- If a handler is found, use it & return a ExecutionError
- If no handler is found, re-raise the error
Instance Attribute Summary collapse
-
#rescue_table ⇒ Hash
readonly
{class => proc}
pairs for handling errors.
Instance Method Summary collapse
-
#call(*args) ⇒ Object
Implement the requirement for MiddlewareChain.
-
#initialize ⇒ RescueMiddleware
constructor
A new instance of RescueMiddleware.
-
#remove_handler(*error_classes) ⇒ Object
Remove the handler for
error_classs
. -
#rescue_from(*error_classes) {|err| ... } ⇒ Object
Constructor Details
#initialize ⇒ RescueMiddleware
Returns a new instance of RescueMiddleware.
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# File 'lib/graphql/schema/rescue_middleware.rb', line 11 def initialize @rescue_table = {} end |
Instance Attribute Details
#rescue_table ⇒ Hash (readonly)
Returns {class => proc}
pairs for handling errors.
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# File 'lib/graphql/schema/rescue_middleware.rb', line 10 def rescue_table @rescue_table end |
Instance Method Details
#call(*args) ⇒ Object
Implement the requirement for MiddlewareChain
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# File 'lib/graphql/schema/rescue_middleware.rb', line 33 def call(*args) begin yield rescue StandardError => err attempt_rescue(err) end end |
#remove_handler(*error_classes) ⇒ Object
Remove the handler for error_classs
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# File 'lib/graphql/schema/rescue_middleware.rb', line 28 def remove_handler(*error_classes) error_classes.map{ |error_class| rescue_table.delete(error_class) } end |
#rescue_from(*error_classes) {|err| ... } ⇒ Object
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# File 'lib/graphql/schema/rescue_middleware.rb', line 22 def rescue_from(*error_classes, &block) error_classes.map{ |error_class| rescue_table[error_class] = block } end |