我正在使用 Dynamose 库方法并自动生成具有当前架构的数据库表，但是我无法在 AWS 中创建 DynamoDB 数据模型，我验证了可视化工具，该表不存在，我想知道是否可以获取数据模型或仅定义何时连接。
这是架构：
import { Schema } from 'dynamoose';
export const NotificationSchema = new Schema({
id: {
type: String,
hashKey: true,
},
targetId: {
type: String,
index: {
type: 'global',
rangeKey: 'status',
},
},
userId: {
type: String,
index: {
type: 'global',
rangeKey: 'status',
},
},
content: {
type: String,
},
status: {
type: String,
},
createAt: {
type: String,
},
});
这是工作台中的元数据：
但元数据未显示
content{
"AttributeDefinitions": [
{
"AttributeName": "id",
"AttributeType": "S"
},
{
"AttributeName": "targetId",
"AttributeType": "S"
},
{
"AttributeName": "userId",
"AttributeType": "S"
},
{
"AttributeName": "status",
"AttributeType": "S"
}
],
"TableName": "aws-nestjs-starter-dev-notification-table",
"KeySchema": [
{
"AttributeName": "id",
"KeyType": "HASH"
}
],
"TableStatus": "ACTIVE",
"CreationDateTime": {},
"ProvisionedThroughput": {
"LastIncreaseDateTime": {},
"LastDecreaseDateTime": {},
"NumberOfDecreasesToday": 0,
"ReadCapacityUnits": 1,
"WriteCapacityUnits": 1
},
"TableSizeBytes": 381,
"ItemCount": 4,
"TableArn": "arn:aws:dynamodb:ddblocal:000000000000:table/aws-nestjs-starter-dev-notification-table",
"GlobalSecondaryIndexes": [
{
"IndexName": "targetIdGlobalIndex",
"KeySchema": [
{
"AttributeName": "targetId",
"KeyType": "HASH"
},
{
"AttributeName": "status",
"KeyType": "RANGE"
}
],
"Projection": {
"ProjectionType": "ALL"
},
"IndexStatus": "ACTIVE",
"ProvisionedThroughput": {
"ReadCapacityUnits": 1,
"WriteCapacityUnits": 1
},
"IndexSizeBytes": 378,
"ItemCount": 3,
"IndexArn": "arn:aws:dynamodb:ddblocal:000000000000:table/aws-nestjs-starter-dev-notification-table/index/targetIdGlobalIndex"
},
{
"IndexName": "userIdGlobalIndex",
"KeySchema": [
{
"AttributeName": "userId",
"KeyType": "HASH"
},
{
"AttributeName": "status",
"KeyType": "RANGE"
}
],
"Projection": {
"ProjectionType": "ALL"
},
"IndexStatus": "ACTIVE",
"ProvisionedThroughput": {
"ReadCapacityUnits": 1,
"WriteCapacityUnits": 1
},
"IndexSizeBytes": 378,
"ItemCount": 3,
"IndexArn": "arn:aws:dynamodb:ddblocal:000000000000:table/aws-nestjs-starter-dev-notification-table/index/userIdGlobalIndex"
}
]
}
我需要在可视化工具上验证此表或获取 json 导出，我使用命令创建了一个音乐表，并且可以在可视化工具中看到，我想要这种格式：
{
"ModelName": "Music Library Data Model",
"ModelMetadata": {
"Author": "Amazon Web Services, Inc.",
"DateCreated": "Sep 05, 2019, 11:50 AM",
"DateLastModified": "Jun 30, 2023, 02:19 AM",
"Description": "This data model represents an Amazon DynamoDB schema for a music library application ",
"Version": "3.0",
"AWSService": "Amazon DynamoDB"
},
"DataModel": [
{
"TableName": "Songs",
"KeyAttributes": {
"PartitionKey": {
"AttributeName": "Id",
"AttributeType": "S"
},
"SortKey": {
"AttributeName": "Metadata",
"AttributeType": "S"
}
},
"NonKeyAttributes": [
{
"AttributeName": "DownloadMonth",
"AttributeType": "S"
},
{
"AttributeName": "TotalDownloadsInMonth",
"AttributeType": "S"
},
{
"AttributeName": "Title",
"AttributeType": "S"
},
{
"AttributeName": "Artist",
"AttributeType": "S"
},
{
"AttributeName": "TotalDownloads",
"AttributeType": "S"
},
{
"AttributeName": "DownloadTimestamp",
"AttributeType": "S"
}
],
"TableFacets": [
{
"FacetName": "SongDetails",
"KeyAttributeAlias": {
"PartitionKeyAlias": "SongId",
"SortKeyAlias": "Metadata"
},
"NonKeyAttributes": [
"Title",
"Artist",
"TotalDownloads"
],
"TableData": [
{
"Id": {
"S": "1"
},
"Metadata": {
"S": "Details"
},
"Title": {
"S": "Wild Love"
},
"Artist": {
"S": "Argyboots"
},
"TotalDownloads": {
"S": "3"
}
},
{
"Id": {
"S": "2"
},
"Metadata": {
"S": "Details"
},
"Title": {
"S": "Example Song Title"
},
"Artist": {
"S": "Jorge Souza"
},
"TotalDownloads": {
"S": "4"
}
}
],
"DataAccess": {
"MySql": {}
}
},
{
"FacetName": "Downloads",
"KeyAttributeAlias": {
"PartitionKeyAlias": "SongId",
"SortKeyAlias": "Metadata"
},
"NonKeyAttributes": [
"DownloadTimestamp"
],
"TableData": [
{
"Id": {
"S": "1"
},
"Metadata": {
"S": "Dld-9349823681"
},
"DownloadTimestamp": {
"S": "2018-01-01T00:00:07"
}
},
{
"Id": {
"S": "1"
},
"Metadata": {
"S": "Dld-9349823682"
},
"DownloadTimestamp": {
"S": "2018-01-01T00:01:08"
}
},
{
"Id": {
"S": "1"
},
"Metadata": {
"S": "Dld-9349823683"
},
"DownloadTimestamp": {
"S": "2018-01-01T00:20:10"
}
},
{
"Id": {
"S": "2"
},
"Metadata": {
"S": "Dld-9349823684"
},
"DownloadTimestamp": {
"S": "2018-01-02T00:00:00"
}
},
{
"Id": {
"S": "2"
},
"Metadata": {
"S": "Dld-9349823685"
},
"DownloadTimestamp": {
"S": "2018-01-03T00:00:02"
}
},
{
"Id": {
"S": "2"
},
"Metadata": {
"S": "Dld-9349836234"
},
"DownloadTimestamp": {
"S": "2018-01-04T01:00:03"
}
},
{
"Id": {
"S": "2"
},
"Metadata": {
"S": "Dld-9349823686"
},
"DownloadTimestamp": {
"S": "2018-01-05T01:10:03"
}
}
],
"DataAccess": {
"MySql": {}
}
}
],
"LocalSecondaryIndexes": [],
"GlobalSecondaryIndexes": [
{
"IndexName": "DownloadsByMonth",
"KeyAttributes": {
"PartitionKey": {
"AttributeName": "DownloadMonth",
"AttributeType": "S"
},
"SortKey": {
"AttributeName": "TotalDownloadsInMonth",
"AttributeType": "S"
}
},
"Projection": {
"ProjectionType": "ALL"
}
}
],
"TableData": [
{
"Id": {
"S": "1"
},
"Metadata": {
"S": "Month-01-2018"
},
"DownloadMonth": {
"S": "01-2018"
},
"TotalDownloadsInMonth": {
"S": "3"
}
},
{
"Id": {
"S": "2"
},
"Metadata": {
"S": "Month-01-2018"
},
"DownloadMonth": {
"S": "01-2018"
},
"TotalDownloadsInMonth": {
"S": "4"
}
}
],
"DataAccess": {
"MySql": {}
},
"BillingMode": "PROVISIONED",
"ProvisionedCapacitySettings": {
"ProvisionedThroughput": {
"ReadCapacityUnits": 5,
"WriteCapacityUnits": 5
},
"AutoScalingRead": {
"ScalableTargetRequest": {
"MinCapacity": 1,
"MaxCapacity": 10,
"ServiceRole": "AWSServiceRoleForApplicationAutoScaling_DynamoDBTable"
},
"ScalingPolicyConfiguration": {
"TargetValue": 70
}
},
"AutoScalingWrite": {
"ScalableTargetRequest": {
"MinCapacity": 1,
"MaxCapacity": 10,
"ServiceRole": "AWSServiceRoleForApplicationAutoScaling_DynamoDBTable"
},
"ScalingPolicyConfiguration": {
"TargetValue": 70
}
}
}
}
]
}
使用以下命令我得到这个：
λ aws dynamodb describe-table --table-name aws-nestjs-starter-dev-notification-table --endpoint-url http://localhost:8000{
"Table": {
"AttributeDefinitions": [
{
"AttributeName": "id",
"AttributeType": "S"
},
{
"AttributeName": "targetId",
"AttributeType": "S"
},
{
"AttributeName": "userId",
"AttributeType": "S"
},
{
"AttributeName": "status",
"AttributeType": "S"
}
],
"TableName": "aws-nestjs-starter-dev-notification-table",
"KeySchema": [
{
"AttributeName": "id",
"KeyType": "HASH"
}
],
缺少内容属性。
Dynamoose 存储整个架构，并使用架构到对象映射。 DynamoDB 是一种无服务器服务，忽略非关键属性。
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