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Contents
# frozen_string_literal: true
module GraphQL
class Schema
# In early GraphQL versions, errors would be "automatically"
# rescued and replaced with `"Internal error"`. That behavior
# was undesirable but this middleware is offered for people who
# want to preserve it.
#
# It has a couple of differences from the previous behavior:
#
# - Other parts of the query _will_ be run (previously,
# execution would stop when the error was raised and the result
# would have no `"data"` key at all)
# - The entry in {Query::Context#errors} is a {GraphQL::ExecutionError}, _not_
# the originally-raised error.
# - The entry in the `"errors"` key includes the location of the field
# which raised the errors.
#
# @example Use CatchallMiddleware with your schema
# # All errors will be suppressed and replaced with "Internal error" messages
# MySchema.middleware << GraphQL::Schema::CatchallMiddleware
#
module CatchallMiddleware
MESSAGE = "Internal error"
# Rescue any error and replace it with a {GraphQL::ExecutionError}
# whose message is {MESSAGE}
def self.call(parent_type, parent_object, field_definition, field_args, query_context)
yield
rescue StandardError
GraphQL::ExecutionError.new(MESSAGE)
end
end
end
end
Version data entries
175 entries across 175 versions & 2 rubygems