我想从特定主键值的Node.js访问Amazon数据服务器的数据。该数据是可用的形式:如何从node.js访问dynamo数据库
{
"Count": 9862,
"Items": [
{
"Admin": {
"S": "false"
},
"UserId": {
"S": "e9633477-978e-4956-ab34-cc4b8bbe4adf"
},
"Age": {
"N": "76.24807963806055"
},
"Promoted": {
"S": "true"
},
"UserName": {
"S": "e9633477"
},
"Registered": {
"S": "true"
}
},
{
"Admin": {
"S": "false"
},
"UserId": {
"S": "acf3eff7-36d6-4c3f-81dd-76f3a8071bcf"
},
"Age": {
"N": "64.79224276370684"
},
"Promoted": {
"S": "true"
},
"UserName": {
"S": "acf3eff7"
},
"Registered": {
"S": "true"
}
},
每次当我制作的代码请求:
app.get('/Mydetails/:tablename/:id', function(req, res){
console.log('Table is ' + req.params.tablename);
var element = {TableName: req.params.tablename, Key:{UserID:{"S": '"'+req.params.id+'"' }}};
console.log('Id is "' + req.params.id + '"');
dynamodb.getItem(element, function(err, data){
if(err){
console.log('Error occurred: '+err);
}else{
console.log('succeed');
res.json(data);
}
});
那么它提供了以下错误:
**ValidationException: The provided key element does not match the schema.**
不过我曾尝试这也是 -
var element = {TableName: req.params.tablename, Key:{UserId:{"S": +req.params.id}}};
任何想法?任何帮助将不胜感激。
你为什么在这里使用+号+ req.params.id?这会将id更改为一个数字(在第二种情况下),您的模式显示userId是一个字符串。 –