[UNSTABLE] [Dependencies] Apply changes required by the upgrade of Co…

…nnexion to version 3.1.x.

Signed-off-by: Giacomo Marciani <[email protected]>

cli/requirements.txt

@@ -16,8 +16,9 @@ aws-cdk.core~=1.164
 aws_cdk.aws-cloudwatch~=1.164
 aws_cdk.aws-lambda~=1.164
 boto3>=1.16.14
-connexion~=3.1
+connexion~=3.1.0
 flask>=2.2.5,<2.3
+a2wsgi~=1.10.7
 jinja2~=3.0
 jmespath~=0.10
 jsii==1.85.0

cli/setup.py

@@ -49,6 +49,7 @@ def readme():
     "werkzeug==3.1.3",
     "connexion~=3.1",
     "flask>=2.2.5,<2.3",
+    "a2wsgi~=1.10.7",
     "jmespath~=0.10",
     "jsii==1.85.0",
 ]

cli/src/pcluster/api/encoder.py

@@ -11,13 +11,13 @@
 import datetime
 
 import six
-from connexion.apps.flask_app import FlaskJSONEncoder
+from connexion.apps.flask import Jsonifier
 
 from pcluster.api.models.base_model_ import Model
 from pcluster.utils import to_iso_timestr
 
 
-class JSONEncoder(FlaskJSONEncoder):
+class JSONEncoder(Jsonifier):
     """Make the model objects JSON serializable."""
 
     include_nulls = False
@@ -34,5 +34,6 @@ def default(self, obj):  # pylint: disable=arguments-renamed
                 dikt[attr] = value
             return dikt
         elif isinstance(obj, datetime.date):
+            # FIXME Expected type 'datetime', got 'date' instead. This issue exists before the upgrade from Connexion 2 to Connexion 3
             return to_iso_timestr(obj)
-        return FlaskJSONEncoder.default(self, obj)
+        return Jsonifier.default(self, obj)

cli/src/pcluster/api/flask_app.py

@@ -10,7 +10,7 @@
 
 import connexion
 from connexion import ProblemException
-from connexion.decorators.validation import ParameterValidator
+from connexion.validators.parameter import ParameterValidator
 from flask import Response, jsonify, request
 from werkzeug.exceptions import HTTPException
 
@@ -74,7 +74,7 @@ def __init__(self, swagger_ui: bool = False, validate_responses=False):
         assert_valid_node_js()
         options = {"swagger_ui": swagger_ui}
 
-        self.app = connexion.FlaskApp(__name__, specification_dir="openapi/", skip_error_handlers=True)
+        self.app = connexion.FlaskApp(__name__, specification_dir="openapi/")
         self.flask_app = self.app.app
         self.flask_app.json_encoder = encoder.JSONEncoder
         self.app.add_api(