node.js - 亚马逊网络服务 : Delete item on DynamoDB Database from Lambda Function

Question

如何通过 Lambda 函数从 DynamoDB 数据库中删除项目。我知道如何放置和元素。这是工作代码:

dynamo.putItem({
            "TableName": "Table",
            "Item": item
        }, function(err, data) {
            if (err) {
                console.log("Failure: " + err);
                context.succeed("Failure!");
                context.done();
            } else {
                console.log("Success!");
                context.succeed("Success!");
                context.done();
            }
        });

Answer 1

这对我有用...省略了 lambda 样板文件...

    var tableName = "Users"
dynamodb.deleteItem({
    "TableName": tableName, 
    "Key" : {
        "UserId": event.UserId
    }
}, function (err, data) {
    if (err) {
        context.fail('FAIL:  Error deleting item from dynamodb - ' + err);
    }
    else {
        console.log("DEBUG:  deleteItem worked. ");
        context.succeed(data);
    }
});