Hey @Gunasekaranv ! Thanks for posting this! I'm not aware of any community drivers for cosmo db and we don't have it on our road map as of right now. However we'd love this contribution! Here's more info on it: https://github.com/cube-js/cube.js/blob/master/CONTRIBUTING.md#implementing-driver

Hi @paveltiunov , i written Cosmos driver
`const CosmosClient = require("@azure/cosmos").CosmosClient;
const BaseDriver = require('@cubejs-backend/query-orchestrator/driver/BaseDriver');
const SqlString = require('sqlstring');
//const { promisify } = require('util');

const applyParams = (query, params) => {
return SqlString.format(query, params);
};
class CosmosDriver extends BaseDriver {
constructor(config) {
super();

this.config = {
  endpoint: process.env.CUBEJS_DB_HOST,
  key: process.env.CUBEJS_DB_KEY,
  databaseId: process.env.CUBEJS_DB_NAME,
  containerId: process.env.CUBEJS_DB_CONTAINERID,
  ...config
};

this.client = new CosmosClient(this.config);
this.database = this.client.database(this.config.databaseId);
this.container = this.database.container(this.config.containerId);

}

testConnection() {
return this.query('SELECT *from c', []);
}
sleep(ms) {
return new Promise((resolve) => {
setTimeout(() => resolve(), ms);
});
}

query(query, values) {
try {
console.log(query);
const queryString = applyParams(
query,
(values || []).map(s => (typeof s === 'string' ? {
toSqlString: () => SqlString.escape(s).replace(/\\([_%])/g, '\$1').replace(/\'/g, '''')
} : s))
);
while (true) {
console.log(queryString);
const queryExecution = this.container.items
.query(queryString)
.fetchAll();
const status = queryExecution.QueryExecution.Status.State;
if (status === 'FAILED') {
throw new Error(queryExecution.QueryExecution.Status.StateChangeReason);
}
if (status === 'CANCELLED') {
throw new Error('Query has been cancelled');
}
if (
status === 'SUCCEEDED'
) {
let results = this.container.items
.query(queryString)
.fetchAll();
const [header, ...tableRows] = results.ResultSet.Rows;
allRows.push(...(allRows.length ? results.ResultSet.Rows : tableRows));
if (!columnInfo) {
columnInfo = results.ResultSet.ResultSetMetadata.ColumnInfo
}
return allRows.map(r =>
columnInfo
.map((c, i) => ({ [c.Name]: r.Data[i].VarCharValue }))
.reduce((a, b) => ({ ...a, ...b }), {})
);
}
this.sleep(500);
}
} catch (err) {
console.log(err.message);
}
}
}

module.exports = CosmosDriver;
`
but i am getting below error so please help me out,
Error:

Error while loading DB schema
TypeError: Cannot read property 'then' of undefined at CosmosDriver.tablesSchema (E:\Developements\cubejs\voca\node_modules@cubejs-backend\cosmosdb-driver\node_modules@cubejs-backend\query-orchestrator\driver\BaseDriver.js:74:29) at E:\Developements\cubejs\voca\node_modules@cubejs-backend\server-core\core\DevServer.js:51:41 at processTicksAndRejections (internal/process/task_queues.js:97:5) at async E:\Developements\cubejs\voca\node_modules@cubejs-backend\server-core\core\DevServer.js:29:9

@Gunasekaranv Were you able to connect the CosmosDB with CubeJS?