Report Recorder

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Listens to all events and generates up the report

Known Issues / Todo

⛅ This page is draft and is subject to rapid change, and may not be fully accurate or complete

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Events Consumed

Events Produced

Diagrams

c4code-mesh-statusreporter-recorder

C4:

Link to this diagram directly: /nhs-notify-digital-letters/diagrams/c4code-mesh-statusreporter-recorder.html

architecture-beta
    group statusRecorder(cloud)[ReportStatusRecorder]
    service report1Event(aws:res-amazon-eventbridge-event)[DigitalLetterRead Event]
    service report2Event(aws:res-amazon-eventbridge-event)[PrintingDispatched Event]
    service report3Event(aws:res-amazon-eventbridge-event)[NHSAppMessageRequested Event]
    service firehose(aws:arch-amazon-data-firehose)[Firehose] in statusRecorder
    service transformLambda(logos:aws-lambda)[Event Transformer] in statusRecorder
    service parquet(logos:aws-s3)[Parquet Append only storage] in statusRecorder
    service stepFunction(aws:arch-aws-step-functions)[Ingestion Step Function] in statusRecorder
    service athena(aws:arch-amazon-athena)[Ingestion query] in statusRecorder
    service glue(aws:arch-aws-glue)[Glue Event Record] in statusRecorder
    junction j1
    junction j2

    j2:B -- T:j1
    report1Event:R -- L:j2
    report2Event:R -- L:j1
    report3Event:R -- B:j1

    j1:R --> L:firehose
    transformLambda:B --> T:firehose
    firehose:R --> L:parquet
    stepFunction:B --> T:athena
    parquet:R --> L:glue
    athena:B --> T:glue

sequence-nhsapp-callback

C4:

Link to this diagram directly: /nhs-notify-digital-letters/diagrams/sequence-nhsapp-callback.html

    sequenceDiagram
    participant nhsapp as NHSApp
    participant apig as API Gateway
    participant sqs as SQS<br/>Callback Queue
    participant lambda as Lambda<br/>NHS App Callback Handler
    participant ddb as DynamoDB<br/>Items With TTL
    participant eb as Event Bridge

    nhsapp ->> apig: POST /callback
    activate apig
    apig ->> sqs: Send message
    apig -->> nhsapp: 200 OK
    deactivate apig
    sqs ->> lambda: Invoke asynchronously
    activate lambda
    lambda ->> ddb: Delete TTL
    lambda ->> eb: DigitalLetterRead event
    deactivate lambda