[英]Dynamodb get item is erroring out
使用javascript aws sdk
我的表定義如下:
resources:
Resources:
ImagesTable:
Type: "AWS::DynamoDB::Table"
Properties:
AttributeDefinitions:
- AttributeName: "deviceId"
AttributeType: "S"
- AttributeName: "timeStamp"
AttributeType: "N"
KeySchema:
- AttributeName: "deviceId"
KeyType: "HASH"
- AttributeName: "timeStamp"
KeyType: "RANGE"
ProvisionedThroughput:
ReadCapacityUnits: 1
WriteCapacityUnits: 1
TableName: ${self:custom.settings.${self:custom.myStage}.ITEMS_DYNAMODB_TABLE}
StreamSpecification:
StreamViewType: NEW_IMAGE
我嘗試運行查詢並獲取所有與字符串匹配的設備。
我的params對象是
const params: DynamoDB.DocumentClient.GetItemInput = {
TableName: eventLogTable,
Key: {deviceId: 'device12345'}
};
我的電話是
return this.client.get(params).promise()
.then(result => {
return result;
});
在日志文件中,我看到以下錯誤:
2019-06-21T17:23:27.878Z cc865442-8604-4f5c-8099-72eba87d9b2b query params right before going in { TableName: 'sls-basic-operations-items-dev',
Key: { deviceId: 'device12345' } }
2019-06-21T17:23:27.904Z cc865442-8604-4f5c-8099-72eba87d9b2b { ValidationException: The provided key element does not match the schema
不明顯我的錯誤是什么? 有什么想法嗎?
看來這里出了問題,是您在使用dynamodb客戶端Get操作時僅指定了哈希鍵。 由於您的表具有范圍鍵(排序鍵),因此,您還應該在Getitem請求中指定該范圍。如果您只想使用哈希鍵搜索記錄,則應使用查詢操作。 params = {TableName:'eventLogTable',KeyConditionExpression:'#deviceId =:deviceId'}; DynamoDB.DocumentClient.query(參數,
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