无法通过JSON在Localstack创建DynamoDB表的问题

我的DynamoDB JSON配置文件内容： #

{"AttributeDefinitions": [{"AttributeName": "pk","AttributeType": "S"},{"AttributeName": "sk","AttributeType": "S"}],"TableName": "MYTABLE","KeySchema": [{"AttributeName": "pk","KeyType": "HASH"},{"AttributeName": "sk","KeyType": "RANGE"}],"GlobalSecondaryIndexes": [{"IndexName": "GSIReverseIndex","KeySchema": [{"AttributeName": "pk","KeyType": "RANGE"},{"AttributeName": "sk","KeyType": "RANGE"}],"Projection": {"ProjectionType": "ALL","NonKeyAttributes": [""]},"ProvisionedThroughput": {"ReadCapacityUnits": 1,"WriteCapacityUnits": 1}}],"BillingMode": "PROVISIONED","ProvisionedThroughput": {"ReadCapacityUnits": 1,"WriteCapacityUnits": 1},"StreamSpecification": {"StreamEnabled": true,"StreamViewType": "NEW_AND_OLD_IMAGES"},"TableClass": "STANDARD"}

执行的创建表命令： #

aws dynamodb create-table --endpoint-url http://localhost:4566 --region us-east-1 --cli-input-file file:///MY_TABLE.json

遇到的错误： #

aws: error: the following arguments are required: --attribute-definitions, --table-name, --key-schema

问题原因及解决办法 #

1. AWS CLI参数版本不兼容：AWS CLI v2已经废弃了--cli-input-file参数，改用--cli-input-json来指定包含配置参数的JSON文件。你当前使用的旧参数导致CLI无法解析JSON中的配置，从而错误提示缺少必填参数。

修正后的命令：

aws dynamodb create-table --endpoint-url http://localhost:4566 --region us-east-1 --cli-input-json file:///MY_TABLE.json

2. 检查JSON文件路径：确认file:///MY_TABLE.json是正确的文件路径。如果是当前目录下的文件，建议使用相对路径写法file://./MY_TABLE.json；绝对路径要确保文件确实存在于对应位置。

3. 修复GSI的KeySchema配置：你的JSON中GSI的配置存在逻辑错误——GSIReverseIndex的两个键类型都是RANGE，而DynamoDB要求所有索引（包括GSI）必须包含一个HASH类型的主键。后续创建表时会因此报错，需要修改为：

"GlobalSecondaryIndexes": [
  {
    "IndexName": "GSIReverseIndex",
    "KeySchema": [
      {"AttributeName": "sk","KeyType": "HASH"},
      {"AttributeName": "pk","KeyType": "RANGE"}
    ],
    "Projection": {"ProjectionType": "ALL"},
    "ProvisionedThroughput": {"ReadCapacityUnits": 1,"WriteCapacityUnits": 1}
  }
]

另外注意Projection中NonKeyAttributes设为空数组没有意义，当ProjectionType为ALL时可以直接省略这个字段。

内容的提问来源于stack exchange，提问作者Shadowman