twitter-dm-notif

AWS stack to retrieve Twitter DM and send notification

This stack utilize AWS lambda, dynamodb and SES to retrieve Twitter DM and send email notification.

Prerequisites:

• Set up AWS account so we can deploy the above resources.

• S3 bucket with write access so we can upload artifacts. S3 versioing shall be enabled for the s3 bucket.

• Set up Twitter appllication to get Twitter API key and access token. Once Twitter API key and access token is avaialbe, please install key/secrets in AWS SSM. The consumer keys can be found on application's Details https://dev.twitter.com/apps (under "OAuth settings")

The access tokens of applications's Details page is located at https://dev.twitter.com/apps (located under "Your access token") The name conventions of those key/secrets is:

"/third-party/twitter/consumer-key",

"/third-party/twitter/consumer-secret",

"/third-party/twitter/access-token",

"/third-party/twitter/access-token-secret",

Configuration:

• Install twitter key/secrets in AWS SSM

You can use this command to set those parameters. For example,

$ aws ssm put-parameter --name "/third-party/twitter/consumer-key" --type SecureString --value

$ aws ssm put-parameter --name "/third-party/twitter/consumer-secret" --type SecureString --value

$ aws ssm put-parameter --name "/third-party/twitter/access-token" --type SecureString --value

$ aws ssm put-parameter --name "/third-party/twitter/access-token-secret" --type SecureString --value

You can use this command to confirm those parameters are set correctly

$ aws ssm get-parameter --name "/third-party/twitter/consumer-key" --with-decryption

$ aws ssm get-parameter --name "/third-party/twitter/consumer-secret" --with-decryption

$ aws ssm get-parameter --name "/third-party/twitter/access-token" --with-decryption

$ aws ssm get-parameter --name "/third-party/twitter/access-token-secret" --with-decryption

• Configure email address in AWS SES

https://docs.aws.amazon.com/ses/latest/DeveloperGuide/send-email-set-up.html

Once sender/reciepent email addresses are verified in AWS SES, you can specify them in cloud formation:

RECEPIENTEMAILADDRESS, SENDEMAILADDRESS

Package and deploy

• package lambda and lambda layer and upload to S3 bucket. It will output S3 version of artifacts once those artifacts are uploaded.

$ ./package_deploy.sh

• deploy cloud formation stack.

You can deploy vis cloud formation console or use the follwoing command:

$ aws cloudformation deploy --template ./twitter-dm-notif-lambda.cfn.yml --stack-name twitter-dm-notif-stack
--profile
--parameter-overrides SharedBucketName=< s3 artifact bucket>
TwitterDMNotifLambdaArtifactS3Version=
TwitterDMNotifLambdaLayerArtifactS3Version=