Enhanced code for exception handling

- Modified README
- Added exception handling
- Modified Changelog

CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+### [0.1.6] - 2022-06-14
+
+### Changed
+
+- Added exception handling
+- Enhanced docs
+
+
 ### [0.1.5] - 2022-06-14
 
 ### Changed

README.md

@@ -80,6 +80,8 @@ the repository.
 
 Simply download the `Terraform` code attached in the release and unzip it.
 
+> <span style="color:red;font-size:large">Note:</span> Make sure your function execution role has required permission to invoke your `Lambda` function else concurrent call executions might fail.
+
 ```bash
 wget https://github.com/satyamsoni2211/LambdaWarmerPy/releases/download/${release}/terraform_code.zip
 unzip terraform_code.zip -d terraform_code/
@@ -105,6 +107,9 @@ TransactionCompsAPI:
   Type: "AWS::Serverless::Function"
   Properties:
     FunctionName: fake-function
+    Policies:
+        - LambdaInvokePolicy:
+            FunctionName: "fake-function"
     Events:
       WarmerSchedule: # add this event to the same template
         Type: Schedule
@@ -118,11 +123,16 @@ TransactionCompsAPI:
 
 In case you want to include concurrent executions, you may add below to include concurrent invocations.
 
+> <span style="color:red;font-size:large">Note:</span> Using concurrency would also require you to add sufficient permissions to the role to call `lambda:invokeFunction` action on the `Lambda` function. Below code snippet includes policy to grant action to the role.
+
 ```yaml
 TransactionCompsAPI:
   Type: "AWS::Serverless::Function"
   Properties:
     FunctionName: fake-function
+    Policies:
+        - LambdaInvokePolicy:
+            FunctionName: "fake-function"
     Events:
       WarmerSchedule: # add this event to the same template
         Type: Schedule

release

@@ -1 +1 @@
-0.1.5
+0.1.6

setup.py

@@ -4,7 +4,7 @@
     long_description = fr.read()
 setup(
     name="py_lambda_warmer",
-    version="0.1.5",
+    version="0.1.6",
     description="Warmer Utility for Lambda Function",
     long_description=long_description,
     long_description_content_type='text/markdown',

warmer.py

@@ -57,8 +57,8 @@ def call_function_concurrently(concurrent_calls: int, flag: str):
         for f in as_completed(map_):
             try:
                 print(f.result())
-            except:
-                pass
+            except Exception as e:
+                print(f"got exception while executing function: {e}")
 
 
 def warmer(flag="warmer", _concurrency=1):