Update reduceCapacity to support new data shape

mapbox / dyno

simple dynamodb client

MIT License

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When using batch operations the stats are not returned correctly.

For example, this request:

batchWriteAll({
  RequestItems: { ... },
  ReturnConsumedCapacity: 'INDEXES',
  ReturnItemCollectionMetrics: 'SIZE'
})

causes AWS to return the following data structure:

{
  ConsumedCapacity: [{
    TableName: 'table',
    CapacityUnits: 8,
    Table: { CapacityUnits: 4 },
    GlobalSecondaryIndexes: { index: { CapacityUnits: 4 } }
  }]
}

which is then transformed by reduceCapacity inside sendAll to this:

{
  ConsumedCapacity: {
    TableName: undefined
  }
}

This PR fixes that problem.

Items: Array<Map<Map>> Count: Integer ScannedCount: Integer LastEvaluatedKey: Map<Map> ConsumedCapacity: Map TableName: String CapacityUnits: Float ReadCapacityUnits: Float WriteCapacityUnits: Float Table: map ReadCapacityUnits: Float WriteCapacityUnits: Float CapacityUnits: Float LocalSecondaryIndexes: Map<Map> ReadCapacityUnits: Float WriteCapacityUnits: Float CapacityUnits: Float GlobalSecondaryIndexes: Map<Map> ReadCapacityUnits: Float WriteCapacityUnits: Float CapacityUnits: Float

mapbox / dyno

Update reduceCapacity to support new data shape #157