aws-samples / chalice-workshop

Contains tutorials, slides, and code for the AWS Chalice workshop.

AWS Chalice Workshop

This repository contains code for the AWS Chalice workshop. You can read the rendered content on ReadTheDocs at: http://chalice-workshop.readthedocs.io/en/latest/

Repo Layout

• docs/ - The step-by-step documentation for completing each tutorial in the workshop. This is a sphinx project and can be used to generate both html as well as a pdf of the guide.
• code/ - The code to use for the workshop. Each tutorial will have a final/ directory reflecting the end code for application once the tutorial is complete.

Building the Docs

Install requirements:

$ pip install -r requirements.txt

Build html docs:

$ make html

chalice-workshop's Issues

Update all code to use python3.7

Python 2.7 is officially deprecated as of Jan 1st. 2020. We should update code to use python3 and remove references to python2.

Also, looking at our pypi stats for Chalice, a majority of downloads/installs use python3 so I think it's reasonable to no longer support both py2 and py3 in the workshop code (https://pypistats.org/packages/chalice). It also simplifies the code for customers to not have to follow additional code paths/modules to support python2 and 3.

todo-app/final: App code does not have permission to access DB when deployed

Running the application using the API endpoint non-locally, leads to a permission failure when running a simple "list" request.

botocore.exceptions.ClientError: An error occurred (AccessDeniedException) when calling the Query operation: User: arn:aws:sts::xxxxxxxx:assumed-role/portal-app-dev/portal-app-dev is not authorized to perform: dynamodb:Query on resource: arn:aws:dynamodb:eu-west-1:xxxxxxxx:table/todo-app-56e56944-c8d5-4722-9bbb-2e77c5a9a138

Adding the AmazonDynamoDBFullAccess to the permission for the Lambda role, fixed the problem.

So it looks as if the chalice deploy does not add the correct permissions to the role.

Can't find slides/ in the repo

Looking forward to slides checkin

Amendments to Readme

1. Correct Readme text to say pip install -r requirements-dev.txt etc.
2. Add note to ignore suggestion to update pip, when running the requirements-dev.txt, requirements.txt pip commands

todo-app/final: utils.py needs check on table existence before accessing, or Exception handler

List of table entries
`python users.py -l

Traceback (most recent call last):
File "users.py", line 86, in
main()
File "users.py", line 80, in main
list_users(args.stage)
File "users.py", line 53, in list_users
for item in table.scan()['Items']:
File "xxx/venv/lib/python3.8/site-packages/boto3/resources/factory.py", line 520, in do_action
response = action(self, *args, **kwargs)
File "xxx/venv/lib/python3.8/site-packages/boto3/resources/action.py", line 83, in call
response = getattr(parent.meta.client, operation_name)(*args, **params)
File "xxx/venv/lib/python3.8/site-packages/botocore/client.py", line 316, in _api_call
return self._make_api_call(operation_name, kwargs)
File "xxx/venv/lib/python3.8/site-packages/botocore/client.py", line 635, in _make_api_call
raise error_class(parsed_response, operation_name)
botocore.errorfactory.ResourceNotFoundException: An error occurred (ResourceNotFoundException) when calling the Scan operation: Requested resource not found
`

force Python 3.6 for OSX

In https://github.com/aws-samples/chalice-workshop/docs/source/env-setup.rst

git checkout f2a764e /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/python.rb did not work

Digging the git history found that 'git checkout f2a764ef9 /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/python.rb' works.

Change f2a764e to f2a764ef9

Not able to create user using command "python users.py -c"

Getting the following error for the command "python users.py -c"

(venv38) Thirumals-Air-2:vfc-lambda thirumal$ python users.py -c
Username: thirumal
Password: 
Traceback (most recent call last):
  File "users.py", line 85, in <module>
    main()
  File "users.py", line 77, in main
    create_user(args.stage)
  File "users.py", line 25, in create_user
    password_fields = encode_password(password)
  File "users.py", line 40, in encode_password
    hashed = hashlib.pbkdf2_hmac('sha256', password, salt, rounds)
TypeError: a bytes-like object is required, not 'str'