如何解决DynamoDB查询ISO日期
我是Dynamo的新手,一直在尝试查询数据库的范围。
我正在这样查询Lambda中的ISO日期字符串:
const start = event['queryStringParameters']['startDate'];
const end = event['queryStringParameters']['endDate'];
let params = {
TableName: "Parcel",KeyConditionExpression: "#trackNo = :trackNo AND #ShipmentDate BETWEEN :start AND :end",ExpressionAttributeNames: {
"#trackNo": "TrackingNumber","#ShipmentDate": "ShipmentDate"
},ExpressionAttributeValues: {
":trackNo": "TrackingNumber",":start": start,":end": end
}
但是我没有得到该范围内的任何记录...
我已经搜索了几个小时...我不知道如何执行此查询。
示例数据:
{
"Carrier": "FedEx","ShipmentDate": "2019-09-02","TrackingNumber": "TN_2019-09-02"
}
功能扫描范例:
let params = {
TableName: "Parcel",FilterExpression: "#ShipmentDate BETWEEN :start AND :end",ExpressionAttributeNames: {
"#ShipmentDate": "ShipmentDate"
},ExpressionAttributeValues: {
":start": start,":end": end
}
};
try {
const data = await documentClient.scan(params).promise();
responseBody = JSON.stringify(data);
statusCode = 200;
} catch (err) {
responseBody = `Unable to get shipments: ${err}`
statusCode = 403;
}
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