Add DC logging

Pipfile

@@ -26,6 +26,7 @@ djangorestframework = "*"
 certifi = ">2022.9.24"
 django-cors-headers = "*"
 typing-extensions = ">=3.7.4"
+dc-logging-utils = {file = "https://github.com/DemocracyClub/dc_logging/archive/refs/heads/lambda-ingest.zip"}
 
 [dev-packages]
 pre-commit = "*"
@@ -50,7 +51,6 @@ python_version = "3.10"
 allow_prereleases = true
 
 [scripts]
-
 collectstatic = "python manage.py collectstatic -c --noinput"
 pytest = "pytest"
 coveralls = "coveralls"

api_endpoints/v1_postcode_lookup/app.py

@@ -1,5 +1,6 @@
 import os
 
+from dc_logging_client import DCWidePostcodeLoggingClient
 from mangum import Mangum
 from middleware import MIDDLEWARE
 from starlette.applications import Starlette
@@ -13,9 +14,24 @@
 
 init_sentry()
 
+if logger_arn := os.environ.get("LOGGER_ARN"):
+    POSTCODE_LOGGER = DCWidePostcodeLoggingClient(function_arn=logger_arn)
+else:
+    POSTCODE_LOGGER = DCWidePostcodeLoggingClient(
+        function_arn="fake", fake=True
+    )
+
 
 def get_postcode_response(request: Request):
     postcode = request.path_params["postcode"]
+
+    # Log this request
+    POSTCODE_LOGGER.entry_class(
+        postcode=postcode,
+        dc_product=POSTCODE_LOGGER.dc_product.ec_api,
+        calls_devs_dc_api=True,
+    )
+
     try:
         response = client.get_postcode_response(request, postcode)
     except DevsDCException as error:

template.yaml

@@ -75,6 +75,11 @@ Parameters:
     Description: "The domain the app is on."
     Type: String
 
+  AppLoggerArn:
+    Default: AppLoggerArn
+    Description: "The ARN of the Lambda function to log to"
+    Type: AWS::SSM::Parameter::Value<String>
+
 Resources:
   DependenciesLayer:
     Type: AWS::Serverless::LayerVersion
@@ -110,6 +115,7 @@ Resources:
           DC_API_TOKEN: !Ref AppDCAPIToken
           SAM_LAMBDA_CONFIG_ENV: !Ref AppSamLambdaConfigEnv
           APP_DOMAIN: !Ref AppDomain
+          LOGGER_ARN: !Ref AppLoggerArn
       Events:
         HTTPRequests:
           Type: Api