Final_Project/
├── architecture_diagram/
│   ├── Final_Project_architecture_diagram.png
│   └── Project_Proposal.png
├── aws_config/
│   ├── API_Gateway_role_with_policies.png
│   ├── Cognito_auth_role_with_policies.png
│   ├── Cognito_unauth_role_with_policies.png
│   ├── Lambda_role_with_policies.png
│   └── Lex_role_with_policies.png
├── config/
│   └── config.ini
├── lambda_batch_process/
│   ├── config.yaml
│   ├── pushing-files-s3.py
│   └── requirements.txt
├── lambda_files_for_dashboard/
│   ├── config.yaml
│   ├── requirements.txt
│   └── s3-trigger.py
├── lambda_reddit_news/
│   ├── config.yaml
│   ├── lambda_function.py
│   └── requirements.txt
├── lambda_reddit_sentiment/
│   ├── config.yaml
│   ├── lambda_function.py
│   └── requirements.txt
├── lambda_reddit_stock/
│   ├── config.yaml
│   ├── lambda_function.py
│   └── requirements.txt
├── lambda_stock_current/
│   ├── config.yaml
│   ├── lambda_function.py
│   └── requirements.txt
├── lambda_stock_prediction/
│   ├── config.yaml
│   ├── lambda_function.py
│   └── requirements.txt
├── LSTM_model/
│   ├── Dockerfile
│   ├── main.py
│   └── requirements.txt
├── README.md
└── Static-Website-Deploy/
    ├── about.html
    ├── architecture.html
    ├── contact.html
    ├── css/
    │   ├── clean-blog.css
    │   └── clean-blog.min.css
    ├── dashboard.html
    ├── home.html
    ├── img/
    │   ├── img.jpeg
    │   └── project.png
    ├── index.html
    ├── register.html
    ├── script/
    │   ├── amazon-cognito-identity.min.js
    │   ├── amazon-cognito-identity.min.js.map
    │   ├── aws-cognito-sdk.min.js
    │   ├── aws-cognito-sdk.min.js.map
    │   ├── aws-sdk-2.487.0.min.js
    │   ├── jquery.min.js
    │   └── jquery.min.map
    └── vendor/
        ├── bootstrap/
        ├── fontawesome-free/
        └── jquery/

• Introduction
• Setup
• TestCases

Scalable Data Pipeline for collecting stock data from Reddit API and Yahoo Finance, generating text entities(stock names) & sentiment analysis, current stock prices, historical stock performance trend & stock forecast and deploying them on the cloud to run completely on a Serverless Infrastructure on-demand. Facilitated this service by creating interactive chatbot for user interaction using Amazon Lex and integrated into static website hosted on S3. Stock forecast is done using LSTM model.

The pipeline requires an Amazon Web Services account to deploy and run. Signup for an AWS Account here. The pipeline uses the folllowing AWS Services:

• Lambda
• S3
• CloudWatch
• Comprehend
• Amazon Lex

Create new roles on the AWS IAM Console by taking reference from images found at aws_config/ on this repository to allow access to all required AWS Services.

Clone this repo to your local machine using https://github.com/goyal07nidhi/Team6_CSYE7245_Spring2021.git

All scripts make use of the configparser Python library to easily pass configuration data to running scripts/deployed packages. This allows for easy replication of code with zero modifications to Python scripts. Find configuration file can be found in config/config.ini directory on this repository. Modify the file with your environment variables and place it on your S3 bucket under the config directory like so YourS3BucketName/config/config.ini ; All packages and scripts are designed to read the configuration values from this path.

[aws]
ACCESS_KEY = <Enter your access key>
SECRET_KEY = <Enter your secret key>
BUCKET = <Enter your bucket name >
REGION_NAME = <Enter your region name >

[reddit]
CLIENT_ID = <Enter your reddit api client id >
CLIENT_SECRET_ID = <Enter your reddit api client secret id >
USERNAME = <Enter your reddit api username>
PASSWORD = <Enter your reddit api password>

The pipeline uses AWS Lambda Functions for Serverless Computing. All directories on this repo marked with the prefix lambda_ are Lambda functions that have to be deployed on AWS. All functions follow a common deployment process.

Python Lambda is toolkit to easily package and deploy serverless code to AWS Lambda. Packaging is requried since AWS Lambda functions only ship with basic Python libraries and do not contain external libraries. Any external libraries to be used will be have to be packaged into a .zip and deployed to AWS Lambda. More information about Python Lambda can be found here

All lambda_ directories contain a config.yaml file with the configuration information required to deploy the Lambda package to AWS. Configure the file with your access keys, secret access keys and function name before packaging and deploying the Python code. An example is as follows

region: us-east-1

function_name: lambda_function
handler: service.handler
description: Deployed lambda Function
runtime: python3.7
role: <Enter the role name created earlier>

# if access key and secret are left blank, boto will use the credentials
# defined in the [default] section of ~/.aws/credentials.
aws_access_key_id: <Enter your Access Keys>
aws_secret_access_key: <Enter your Secret Access Keys>

timeout: 15
memory_size: 1024

environment_variables:
    ip_bucket: <enter_your_S3_Bucket>
    s3_key: <s3_file_key>

# Build options
build:
  source_directories: lib

Create a Virtual Environment and install all Python dependencies mentioned in requirements.txt.

Create a new Lambda function on your AWS Lambda Console. For deploying lambda, zip the contents of the directory and upload the file to the Lambda console and make the necessary changes like lambda handler name & function, the environment variables from the lambda console:

Key: Value
ip_bucket: <enter_your_S3_Bucket>
s3_key: <s3_file_key>

Trigger the lambda function by cloud watch scheduler for lambda_batch_process and lambda_files_for_dashboard functions.

Although - you can do this with python-lambda as well, but we are using the above method.

1. Configuring User Pool
   • Go to AWS Cognito Service and create a user pool with defaults
   • Copy the generated pool-id
   • Go to App Clients and click Add on app client
   • Create an app client by giving App client name and uncheck the Generate client secret. Note the App client id
2. Configure an Identity Pool
   • Go to AWS Cognito service and create identity pool by entering the Identity Pool name and expand Authenication providers select cognito tab and provide the User Pool ID and App client id generated in step 1
   • Note the IAM Roles created in the next Your Cognito identities require access to your resources page
   • After creating Identity Pool, go to edit Identity Pool and note the Identity pool ID
3. Allow AWS Resource Access to Identity Pool Role
   • Go to IAM service and attach AmazonS3FullAccess policy to the IAM Roles created in Step 2

• Sign in to the AWS Management Console and open the Amazon Lex console at here.
• On the Bots page, choose Create and provide the necessary information like IAM service for LexBots , and then choose Create.
• The console makes the necessary requests to Amazon Lex to save the configuration. Wait for confirmation that your bot was built.
• The console then displays the bot editor window, now you can create intent and test the bot.

• Sample utterances: Here we put input for the intent.
• Lambda initialization and validation: If intent require any lambda function to trigger the intent, we put the lambda function here: eg, Lambda function: lambda_reddit_news
  Version or alias: Latest
• Slots: Here we can give event name for the intent.
• Fulfillment: Here we have two options:
  1. AWS Lambda function - choose this option when we are creating lambda function for the intent response
  2. Return parameters to client - here we can directly assign responses in the form of messages for the intent.
• After providing all above information, we save the intent and build the bot.

1. Welcome_Intent
2. Choice_Input_Intent
3. Reddit_News_Intent
4. Reddit_Stock_Intent
5. Reddit_Sentiment_Intent
6. Stock_Info_Intent
7. Stock_Historical_Intent
8. Stock_Prediction_Intent
9. Bye_Intent

We also implemented error handling for the chatbox.

• Clarification prompts: If the chatbox couldn’t understand the user’s utterances, it will throw an error.
  Error message: Sorry, can you please repeat that?

• Hang-up phrase: If the chatbox couldn’t find the correct utterances by the user, it will throw an error.
  Error message: Sorry, I could not understand. Goodbye.

After building the bot, we created alias name for bot and publish the bot. We are integrating this bot into our static website for interactive communication.

The pipeline requires six lambdas to run on AWS to facilitate value in Amazon Lex.

• Create an S3 bucket
• In Set Permissions/Block all public access section and unselect the first 2 permissions
• Go to Properties section and enable Static website hosting. Enter Index document as index.html
• In Permissions tab, go to CORS configuration and paste the below code

[
    {
        "AllowedHeaders": [
            "*"
        ],
        "AllowedMethods": [
            "PUT",
            "POST",
            "DELETE",
            "GET"
        ],
        "AllowedOrigins": [
            "*"
        ],
        "ExposeHeaders": []
    }
]

• Upload all the files required to the bucket and make them public
• We can view the webpage using the end-point in Properties/Static website hosting

Time-series forecasting models are the models that are capable to predict future values based on previously observed values. Time-series forecasting is widely used for non-stationary data. Non-stationary data are called the data whose statistical properties e.g. the mean and standard deviation are not constant over time but instead, these metrics vary over time.

Long short-term memory (LSTM) is an artificial recurrent neural network (RNN) architecture used in the field of deep learning. LSTM models are able to store information over a period of time. This characteristic is extremely useful when we deal with Time-Series or Sequential Data. When using an LSTM model we are free and able to decide what information will be stored and what discarded.

We are taking 5 years of data for multiple companies and applying the LSTM model on data and predicting the Stock price for the next 90 days. The results are stored in S3

In this directory, we have Dockerfile under the LSTM_model directory, a blueprint for our development environment, and requirements.txt that lists the python dependencies.

For using the model, follow these steps:

1. git clone this repo
2. cd Final_Project/LSTM_model/
3. docker build -t nidhi2019/stock-analysis-lstm-model:latest .

docker pull nidhi2019/stock-analysis-lstm-model

docker run -it --rm -p 5000:5000 nidhi2019/stock-analysis-lstm-model

All Test Cases have been documented here

Chatbot can be accessed using this web application: Web Application

Team Members

Nidhi Goyal
Kanika Damodarsingh Negi
Rishvita Reddy Bhumireddy

https://docs.aws.amazon.com/lexv2/latest/dg/lambda.html
https://medium.com/@sumindaniro/user-authentication-and-authorization-with-aws-cognito-d204492dd1d0
https://docs.aws.amazon.com/lex/latest/dg/lambda-input-response-format.html
https://docs.aws.amazon.com/comprehend/latest/dg/functionality.html
https://github.com/nficano/python-lambda