我的Lambda脚本是:
var AWS = require("aws-sdk");
var DOC = require("dynamodb-doc");
AWS.config.update({region: "us-west-1"});
var docClient = new DOC.DynamoDB();
var dynamodb = new AWS.DynamoDB();
exports.handler = function(event, context) {
var params = {};
params.TableName = "Emails";
params.ConditionalOperator = "AND";
params.ScanFilter = {
Machinekey:{
ComparisonOperator:"EQ",
AttributeValueList: [{S: "okok"}]
}
};
params.Select= "COUNT";
//params.IndexName = "Machinekey-index";
//params.KeyConditions = docClient.Condition("EmailId", "NOT_NULL");
//params.QueryFilter = docClient.Condition("Machinekey", "EQ","ARUZE-010415_15112442NLHIYTLY-A23V3.9");
dynamodb.scan(params, function(err, data) {
if (err) {
console.log(err, err.stack);
} else {
//console.log(data);
context.succeed(data.Count);
}
});
};
执行日志的结果:
[ValidationException:ConditionalOperator只能在Filter或Expected有两个或更多元素时使用] 消息:' ConditionalOperator只能在Filter或Expected有两个或多个元素时使用', 代码:' ValidationException', 时间:2015年6月10日星期三03:12:34 GMT + 0000(UTC), statusCode:400, 可重试:false,
拜托,帮助我!
答案 0 :(得分:0)
您指定ConditionalOperator = "AND";
,但是当前查询只包含一个条件(Machinekey ==" okok")时,您不需要这样做。如果您有两个或更多条件,则只需要ConditionalOperator
。
尝试评论ConditionalOperator
并再次尝试:
var params = {};
params.TableName = "Emails";
//params.ConditionalOperator = "AND";
params.ScanFilter = {
Machinekey:{
ComparisonOperator:"EQ",
AttributeValueList: [{S: "okok"}]
}
};
params.Select= "COUNT";
...