Initial lambda

[DanielSass]

What needs to be done

Build a lambda function that connects with various AWS infra in order to determine when to call the core diff functionality on two eICR/RR pairs.

Why it needs to be done

This how we're going to be running in prod.

Acceptance Criteria

• Lambda entry point is an SQS Event (similar to refiner)
• Lambda reads event to get an s3 key (example message in meeting notes)
• Lambda grabs the s3 document (shape in the technical notes) using the event data

For each eICR/RR pair in the document:

• Lambda checks dynamo for a previous document
• Lambda stores current event info in dynamo for future processing.
• Lambda calls core diff functionality if applicable (based on dynamo data)
• Lambda writes output (augmented eICR + JSON output) to output s3
• Lambda updates dynamo

When finished processing all files in the document

• Lambda writes the DIDComplete to s3

Technical Notes

• We might need to revisit storage architecture with the new requirement for batch processing
• s3 document input will look like:

{
"Files" : [
{"eicr": "RefinerOutputV2/{persistence_id}/SDDH/COVID19/refined_eICR.xml",
 "rr": "RefinerOutputV2/{persistence_id}/SDDH/COVID19/refined_RR.xml"
 "setid":"xyz",
 "version":123
},
{"eicr": "RefinerOutputV2/{persistence_id}/SDDH/COVID19/refined_eICR.xml",
 "rr": "RefinerOutputV2/{persistence_id}/SDDH/COVID19/refined_RR.xml"
 "setid":"xyz",
 "version":123
}
]
}

Additional context

[OPTIONAL, delete if not needed]
Include any additional context or information here that doesn't fit into other parts of the template