This project simulates an attestation service that can sign and make available MessageSent events for transport to remote domains ala CCTP.
This is for fun, don't deploy anywhere important.
Inject signing key, e.g.
# private key for ganache test account 10
aws secretsmanager create-secret --name sk2 --secret-string "0xf9832eeac47db42efeb2eca01e6479bfde00fda8fdd0624d45efd0e4b9ddcd3b"
Note the account 10 key aboce assumes a ganache test envionment was seeded via plate retire drum shallow still rain total december smoke company dance genius
Set the AWS_REGION environment variable prior to running AWS commands.
cd inf
cdk deploy
To clean up:
cdk destroy
aws dynamodb delete-table --table-name attestations
This is the lambda code that reads from the queue and writes the signed message hash to the database.
event looks like:
{
"Records": [
{
"messageId": "8f22ce80-8564-4b6c-903b-2b1ff74333a7",
"receiptHandle": "AQEBn8W3GfKyHxEYAKN6n5ADUd26t0Q9pJrE5W7xYQbDTy4M6S+yeZo0/X8K5XVZoDoTgYWvqIeodCySRCWsl5FE6mNvrKVIhkGYyyLNZqPe4nXbmIz8sqNkP6Lh55RZdrbDCV20BfASuw/SeVL3i6W1MF8MlO1NYjD94Ynf8DPw2uMpFZr+eWxFXnyqzDHaJ45vGxl+VRrke13vOrcSujTdPSL4eRk3jdr/SxYSMWRR63NppvWmxXXcJ+ZuB7sadYI9VKZtqUABEEPlDLcpD+BSZzbXpXzsoTOxp7A0ccRV/PPqla57FaTQWxUKxNDT+ERlLeggB4yVPa0uxt24EG5JQ+35LcEqIX1cJ4uuLcndf5C6OZFCVIdaZPdoM5mllZhnx/THYgpbwQsbJgxC8Eud5Q==",
"body": "{\"message\":\"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\",\"txnHash\":\"0x9b69e5d511597fbded301af4f84d6287945db45ed93c08e615188354071ef84e\"}",
"attributes": {
"ApproximateReceiveCount": "1",
"SentTimestamp": "1677194819123",
"SenderId": "AIDATLMAJ6XMODUWTB7S7",
"ApproximateFirstReceiveTimestamp": "1677194819135"
},
"messageAttributes": {},
"md5OfBody": "a3acadde5a3d7afca69bf58701c4ebfe",
"eventSource": "aws:sqs",
"eventSourceARN": "arn:aws:sqs:us-east-1:nnnnnnnnnnnn:qqqqqq",
"awsRegion": "us-east-1"
}
]
}
Run ls.js using node. Note that you must set the environment variables in .env first:
- CONTRACT_ADDR - this is the deployed address of the Transport contract on the ethereum network
- RAW_Q_URL - this is the queue url created when the infrastructure stack is deployed
- EVENT_ENDPOINT - endpoint events are available from for the ethereum network Transporter contract event subscription.
The queue url is available as a stack output, as is the attest api url:
aws cloudformation describe-stacks --query 'Stacks[?StackName==`InfStack`][].Outputs[?OutputKey==`qUrl`].OutputValue' --output text
aws cloudformation describe-stacks --query 'Stacks[?StackName==`InfStack`][].Outputs[?OutputKey==`attestApiUrl`].OutputValue' --output text
aws dynamodb query --table-name attestations --region us-east-1 --key-condition-expression "msgHash = :hashval" --expression-attribute-values '{":hashval":{"S":"0x60c1276a0d88019dd227999a1673a5a4ff90dbee845b1b2d6915b1516379b9a3"}}'
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