CODEWITHSUNDEEP
node.jsamazon-web-servicesamazon-dynamodb
user2503775
user2503775

Reputation: 4367

unable to create table in dynamodb-local - aws

I'm using dynamoDB-local with nodejs code.

I have the following code:

var aws = require("aws-sdk")
aws.config.update({"accessKeyId": "aaa",
                   "secretAccessKey": "bbb",
                   "region": "us-east-1"})

var awsdb = new aws.DynamoDB({ endpoint: new aws.Endpoint("http://localhost:8000") });

awsdb.createTable({
  TableName: 'myTbl',
  AttributeDefinitions: [
    { AttributeName: 'aaa', AttributeType: 'S' },
  ],
  KeySchema:[
    { AttributeName: 'aaa', KeyType: 'HASH' }
  ]
}, function() { 
    awsdb.listTables(function(err, data) {
      console.log(data)
  });
});

But it isn't creating the table. I'm getting { TableNames: [] } in logs. err is null.

Upvotes: 1

Views: 3586

Answers (2)

Johnny Wu
Johnny Wu

Reputation: 862

It seems like you are missing the required ProvisionedThroughput parameter in the CreateTable request. So what is happening is the CreateTable returns a validation error and ListTables executes successfully without returning any tables (The "err" variable in your code seems to be for the ListTables call)

E.g. the following is working for me

var aws = require("aws-sdk")
aws.config.update({"accessKeyId": "aaa",
  "secretAccessKey": "bbb",
  "region": "us-east-1"})
var awsdb = new aws.DynamoDB({ endpoint: new aws.Endpoint("http://localhost:8000") });

awsdb.createTable({
  TableName: 'myTbl',
  AttributeDefinitions: [
       { AttributeName: 'aaa', AttributeType: 'S' },
       ],
  KeySchema:[
       { AttributeName: 'aaa', KeyType: 'HASH' }
  ],
  ProvisionedThroughput: {ReadCapacityUnits: 1, WriteCapacityUnits: 1},
}, function(err, data) {
  if (err) 
    console.log(err, err.stack); // an error occurred
  else {
    awsdb.listTables(function(err, data) {
      console.log(data)
    });
  }
});

Upvotes: 3

aaaristo
aaaristo

Reputation: 2169

After you issue a createTable you have to wait until the table is effectively created. Once the table is created it will appear in your listTables call. You can wait by using the describeTable call.

http://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB.html#createTable-property

CreateTable is an asynchronous operation. Upon receiving a CreateTable request, DynamoDB immediately returns a response with a TableStatus of CREATING.

You can use the DescribeTable API to check the table status.

Upvotes: 0

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