/
utils.js
120 lines (99 loc) · 3.98 KB
/
utils.js
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var BbPromise = require('bluebird');
var AWS = require('aws-sdk');
var credentials = new AWS.SharedIniFileCredentials({
profile: 'default'
});
AWS.config.credentials = credentials;
var Utils = function() {};
Utils.getTableSchema = function(_table_name, _region) {
return new BbPromise(function(resolve) {
AWS.config.update({
region: _region
});
var dynamodb = new AWS.DynamoDB();
var params = {
TableName: _table_name
};
dynamodb.describeTable(params, function(err, data) {
if (err) console.log(err, err.stack);
else {
var _table = data.Table;
delete _table.TableStatus;
delete _table.CreationDateTime;
delete _table.TableSizeBytes;
delete _table.ItemCount;
delete _table.ProvisionedThroughput.NumberOfDecreasesToday;
delete _table.TableArn;
if (_table.GlobalSecondaryIndexes != undefined) {
for (var i = 0; i < _table.GlobalSecondaryIndexes.length; i++) {
delete _table.GlobalSecondaryIndexes[i].IndexStatus;
delete _table.GlobalSecondaryIndexes[i].ProvisionedThroughput.NumberOfDecreasesToday;
delete _table.GlobalSecondaryIndexes[i].IndexSizeBytes;
delete _table.GlobalSecondaryIndexes[i].ItemCount;
delete _table.GlobalSecondaryIndexes[i].IndexArn;
}
}
if (_table.LocalSecondaryIndexes != undefined) {
for (var j = 0; j < _table.LocalSecondaryIndexes.length; j++) {
delete _table.LocalSecondaryIndexes[j].IndexStatus;
delete _table.LocalSecondaryIndexes[j].ProvisionedThroughput.NumberOfDecreasesToday;
delete _table.LocalSecondaryIndexes[j].IndexSizeBytes;
delete _table.LocalSecondaryIndexes[j].ItemCount;
delete _table.LocalSecondaryIndexes[j].IndexArn;
}
}
resolve(_table);
}
});
});
};
Utils.createTable = function(_params, _region) {
return new BbPromise(function(resolve) {
AWS.config.update({
region: _region
});
var dynamodb = new AWS.DynamoDB();
dynamodb.createTable(_params, function(err, data) {
if (err) console.log(err, err.stack);
else resolve(data);
});
});
};
Utils.setDefaultProfile = function(_profile) {
var _credentials = new AWS.SharedIniFileCredentials({
profile: _profile
});
AWS.config.credentials = _credentials;
};
Utils.migrateAll = function(_tables, _from_region, _to_region, _profile) {
return new BbPromise(function(resolve) {
var tablesArray = _tables.split(',');
var tables_promises = [];
if (!_profile) {
Utils.setDefaultProfile(_profile);
}
for (var i = 0; i < tablesArray.length; i++) {
tables_promises.push(Utils.getTableSchema(tablesArray[i], _from_region));
}
BbPromise.all(tables_promises)
.then(function(results) {
console.log("Table schema retreival done");
var promises_all_tables = [];
for (var j = 0; j < results.length; j++) {
promises_all_tables.push(Utils.createTable(results[j], _to_region));
}
BbPromise.all(promises_all_tables)
.then(function(results) {
console.log("Tables creation done");
resolve("success"); //retrun as success
})
.catch(function(e) {
resolve(e);
});
})
.catch(function(e) {
console.log(e);
});
});
};
module.exports = Utils;