Serply.io Serverless Notifications

Serply.io + Slack + AWS + Python CDK

Main Services

• Serply.io - SERP API
• Slack (Commands, Bolt)
• AWS CDK (Python)
• AWS API Gateway
• AWS Lambda (Python)
• AWS DynamoDB
• AWS EventBridge Scheduler
• AWS SSM Parameter Store

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Installation

cdk deploy --profile cloudchemy --outputs-file ./cdk.out/serply.outputs.json

Generate Slack manifest

python3 install.py slack

Install Slack app

Set .env variables

AWS_PROFILE=acme
SERPLY_API_KEY=
SLACK_BOT_TOKEN=
SLACK_SIGNING_SECRET=

Store secrets on AWS SSM Parameter Store

python3 install.py secrets

Slack Command Examples

Creating a SERP Scheduled Notification

/serply serp google.com "google+search" daily

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AWS CDK (Python)

The cdk.json file tells the CDK Toolkit how to execute your app.

This project is set up like a standard Python project. The initialization process also creates a virtualenv within this project, stored under the .venv directory. To create the virtualenv it assumes that there is a python3 (or python for Windows) executable in your path with access to the venv package. If for any reason the automatic creation of the virtualenv fails, you can create the virtualenv manually.

To manually create a virtualenv on MacOS and Linux:

$ python3 -m venv .venv

After the init process completes and the virtualenv is created, you can use the following step to activate your virtualenv.

source .venv/bin/activate

If you are a Windows platform, you would activate the virtualenv like this:

% .venv\Scripts\activate.bat

Once the virtualenv is activated, you can install the required dependencies.

$ pip install -r requirements.txt

At this point you can now synthesize the CloudFormation template for this code.

$ cdk synth

To add additional dependencies, for example other CDK libraries, just add them to your setup.py file and rerun the pip install -r requirements.txt command.

Useful commands

• cdk ls list all stacks in the app
• cdk synth emits the synthesized CloudFormation template
• cdk deploy deploy this stack to your default AWS account/region
• cdk diff compare deployed stack with current state
• cdk docs open CDK documentation

Enjoy!

cdk synth --no-staging > template.yaml --profile cloudchemy