AWS DynamoDB Batch Get Request - iOS

后端未结

关注

 3  846

深忆病人 2021-01-03 08:29

I can perform a simple Get request on a singular table within AWS dynamoDB however when I expand it to a Batch Request across multiple tables I continue to get

3条回答

被撕碎了的回忆 (楼主)

2021-01-03 08:58

Swift 3
I was able to get the BatchGet request work with the following code. Hope this helps someone else who's struggling with the lack of Swift Docs.

This code assumes that you've configured your AWSServiceConfiguration in the AppDelegate application didFinishLaunchingWithOptions method.

let DynamoDB = AWSDynamoDB.default()

    // define your primary hash keys
    let hashAttribute1 = AWSDynamoDBAttributeValue()
    hashAttribute1?.s = "NDlFRTdDODEtQzNCOC00QUI5LUFFMzUtRkIyNTJFNERFOTBF"

    let hashAttribute2 = AWSDynamoDBAttributeValue()
    hashAttribute2?.s = "MjVCNzU3MUQtMEM0NC00NEJELTk5M0YtRTM0QjVDQ0Q1NjlF"

    let keys: Array = [["userID": hashAttribute1], ["userID": hashAttribute2]]

    let keysAndAttributesMap = AWSDynamoDBKeysAndAttributes()
    keysAndAttributesMap?.keys = keys as? [[String : AWSDynamoDBAttributeValue]]
    keysAndAttributesMap?.consistentRead = true
    let tableMap = ["Your-Table-Name" : keysAndAttributesMap]
    let request = AWSDynamoDBBatchGetItemInput()
    request?.requestItems = tableMap as? [String : AWSDynamoDBKeysAndAttributes]
    request?.returnConsumedCapacity = AWSDynamoDBReturnConsumedCapacity.total
    DynamoDB.batchGetItem(request!) { (output, error) in
        if output != nil {
            print("Batch Query output?.responses?.count:", output!.responses!)
        }
        if error != nil {
            print("Batch Query error:", error!)
        }
    }

0 讨论(0)

查看其它3个回答

AWS DynamoDB Batch Get Request - iOS

Swift 3