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Create dynamo.StreamRecord to avoid json.Unmarshall issue #38

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merged 1 commit into from
Jan 8, 2017
Merged

Create dynamo.StreamRecord to avoid json.Unmarshall issue #38

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25 changes: 18 additions & 7 deletions dynamo/dynamo.go
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@ import (
"encoding/json"

"github.com/apex/go-apex"
"github.com/aws/aws-sdk-go/service/dynamodbstreams"
"github.com/aws/aws-sdk-go/service/dynamodb"
)

// Event represents a Dynamo event with one or more records.
Expand All @@ -15,12 +15,23 @@ type Event struct {

// Record represents a single Dynamo record.
type Record struct {
EventID string `json:"eventID"`
EventName string `json:"eventName"`
EventSource string `json:"eventSource"`
EventVersion string `json:"eventVersion"`
AWSRegion string `json:"awsRegion"`
Dynamodb *dynamodbstreams.StreamRecord `json:"dynamodb"`
EventID string `json:"eventID"`
EventName string `json:"eventName"`
EventSource string `json:"eventSource"`
EventVersion string `json:"eventVersion"`
AWSRegion string `json:"awsRegion"`
Dynamodb *StreamRecord `json:"dynamodb"`
}

// StreamRecord represents a Dynamo stream records
type StreamRecord struct {
ApproximateCreationDateTime int64
Keys map[string]*dynamodb.AttributeValue
NewImage map[string]*dynamodb.AttributeValue
OldImage map[string]*dynamodb.AttributeValue
SequenceNumber string
SizeBytes int64
StreamViewType string
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these ones don't need tags as well?

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No, tags are not required since the JSON keys have the same casing.

Example:

{
  "eventID": "a4667189b69049238be6e19dca1b0b68",
  "eventName": "INSERT",
  "eventVersion": "1.1",
  "eventSource": "aws:dynamodb",
  "awsRegion": "us-east-1",
  "dynamodb": {
    "ApproximateCreationDateTime": 1483834200,
    "Keys": {
      "id": {
        "S": "123"
      }
    },
    "NewImage": {
      "id": {
        "S": "123"
      },
      "name": {
        "S": "bob"
      }
    },
    "SequenceNumber": "123456700000000012345678901",
    "SizeBytes": 100,
    "StreamViewType": "NEW_IMAGE"
  },
  "eventSourceARN": "arn:aws:dynamodb:us-east-1:123456789012:table\/table_name\/stream\/2017-01-01T00:00:00.000"
}

docs

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weird ok cool

}

// Handler handles Dynamo events.
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