below, along with their types. The `items` key maps to a list of matching
`{cls_name}` objects.
'''
-_MODULE_PYDOC = '''Arvados API client documentation skeleton
-
-This module documents the methods and return types provided by the Arvados API
-client. Start with `ArvadosAPIClient`, which documents the methods available
-from the API client objects constructed by `arvados.api`. The implementation is
-generated dynamically at runtime when the client object is built.
+_MODULE_PYDOC = '''Arvados API client reference documentation
+
+This module provides reference documentation for the interface of the
+Arvados API client, including method signatures and type information for
+returned objects. However, the functions in `arvados.api` will return
+different classes at runtime that are generated dynamically from the Arvados
+API discovery document. The classes in this module do not have any
+implementation, and you should not instantiate them in your code.
+
+If you're just starting out, `ArvadosAPIClient` documents the methods
+available from the client object. From there, you can follow the trail into
+resource methods, request objects, and finally the data dictionaries returned
+by the API server.
'''
_SCHEMA_PYDOC = '''
'''
_MODULE_PRELUDE = '''
+import googleapiclient.discovery
+import googleapiclient.http
+import httplib2
import sys
-from typing import Any, Dict, List
+from typing import Any, Dict, Generic, List, Optional, TypeVar
if sys.version_info < (3, 8):
from typing_extensions import TypedDict
else:
from typing import TypedDict
+
+# ST represents an API response type
+ST = TypeVar('ST', bound=TypedDict)
'''
+_REQUEST_CLASS = '''
+class ArvadosAPIRequest(googleapiclient.http.HttpRequest, Generic[ST]):
+ """Generic API request object
+
+ When you call an API method in the Arvados Python SDK, it returns a
+ request object. You usually call `execute()` on this object to submit the
+ request to your Arvados API server and retrieve the response. `execute()`
+ will return the type of object annotated in the subscript of
+ `ArvadosAPIRequest`.
+ """
+
+ def execute(self, http: Optional[httplib2.Http]=None, num_retries: int=0) -> ST:
+ """Execute this request and return the response
+
+ Arguments:
+
+ * http: httplib2.Http | None --- The HTTP client object to use to
+ execute the request. If not specified, uses the HTTP client object
+ created with the API client object.
+
+ * num_retries: int --- The maximum number of times to retry this
+ request if the server returns a retryable failure. The API client
+ object also has a maximum number of retries specified when it is
+ instantiated (see `arvados.api.api_client`). This request is run
+ with the larger of that number and this argument. Default 0.
+ """
-_TYPE_MAP = {
+'''
+
+# Annotation represents a valid Python type annotation. Future development
+# could expand this to include other valid types like `type`.
+Annotation = str
+_TYPE_MAP: Mapping[str, Annotation] = {
# Map the API's JavaScript-based type names to Python annotations.
# Some of these may disappear after Arvados issue #19795 is fixed.
'Array': 'List',
class Method:
- def __init__(self, name: str, spec: Mapping[str, Any]) -> None:
+ def __init__(
+ self,
+ name: str,
+ spec: Mapping[str, Any],
+ annotate: Callable[[Annotation], Annotation]=str,
+ ) -> None:
self.name = name
self._spec = spec
+ self._annotate = annotate
self._required_params = []
self._optional_params = []
for param_name, param_spec in spec['parameters'].items():
returns = get_type_annotation(self._spec['response']['$ref'])
except KeyError:
returns = 'Dict[str, Any]'
+ returns = self._annotate(returns)
return inspect.Signature(parameters, return_annotation=returns)
def doc(self, doc_slice: slice=slice(None)) -> str:
if class_name in _DEPRECATED_RESOURCES:
docstring += _DEPRECATED_NOTICE
methods = [
- Method(key, meth_spec)
+ Method(key, meth_spec, 'ArvadosAPIRequest[{}]'.format)
for key, meth_spec in spec['methods'].items()
if key not in _ALIASED_METHODS
]
for name, resource_spec in resources:
print(document_resource(name, resource_spec), file=args.out_file)
- print('''class ArvadosAPIClient:''', file=args.out_file)
+ print(
+ _REQUEST_CLASS,
+ '''class ArvadosAPIClient(googleapiclient.discovery.Resource):''',
+ sep='\n', file=args.out_file,
+ )
for name, _ in resources:
class_name = classify_name(name)
docstring = f"Return an instance of `{class_name}` to call methods via this client"