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from importlib import import_module
from typing import Any, Dict
from ariadne import ObjectType, convert_kwargs_to_snake_case, convert_camel_case_to_snake
from graphql import GraphQLResolveInfo
from makefun import with_signature
from .. import state
mutation = ObjectType("Mutation")
def make_resolver(mutation_name):
"""Dynamically generate a resolver for the mutation named in the
schema by 'mutation_name'.
Dynamic generation is provided using the package 'makefun' (via the
decorator 'with_signature'), which provides signature-preserving
function wrappers; it provides several improvements over, say,
functools.wraps.
:raise Exception:
encapsulating ConfigErrors, or internal errors
"""
class_name = mutation_name.replace('create', '', 1).replace('delete', '', 1)
func_base_name = convert_camel_case_to_snake(class_name)
resolver_name = f'resolve_create_{func_base_name}'
func_sig = '(obj: Any, info: GraphQLResolveInfo, data: Dict)'
@mutation.field(mutation_name)
@convert_kwargs_to_snake_case
@with_signature(func_sig, func_name=resolver_name)
async def func_impl(*args, **kwargs):
try:
if 'data' not in kwargs:
return {
"success": False,
"errors": ['missing data']
}
data = kwargs['data']
session = state.settings['app'].state.vyos_session
mod = import_module(f'api.graphql.recipes.{func_base_name}')
klass = getattr(mod, class_name)
k = klass(session, data)
k.configure()
return {
"success": True,
"data": data
}
except Exception as error:
return {
"success": False,
"errors": [str(error)]
}
return func_impl
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