This repository has sample Javascript language code to interact with Cassandra API of Azure Cosmos DB in form of creation, query and cleanup of data.

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azure-cosmos-db-cassandra-nodejs-getting-started's Introduction

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Azure Cosmos DB is a globally distributed multi-model database. One of the supported APIs is the Cassandra API.

azure-cosmos-db-cassandra-nodejs-getting-started

Developing a Node.js app with Cassandra API using Azure Cosmos DB

Azure Cosmos DB is a globally distributed multi-model database. One of the supported APIs is the Cassandra API. This sample walks you through creation of keyspace, table, inserting and querying the data.

Running this sample

Before you can run this sample, you must have the following perquisites:
- An active Azure Cassandra API account - If you don't have an account, refer to the Create a Cassandra API account article.
- Node.js version v0.10.29 or higher.
- Git.
- Node.js driver for apache cassandra // to install the driver - run npm install cassandra-driver

Clone this repository:

git clone [email protected]:Azure-Samples/Azure-Samples/azure-cosmos-db-cassandra-node-getting-started.git cosmosdb

Change directories to the repo:
```
cd cosmosdb
```
Install npm dependencies:
```
npm install
```
Next, substitute the contactPoint, username, password, and Azure region in config.js with your Cosmos DB account's values from the Azure portal. Find REGION on the Overview page as Read locations. The remaining settings are on the Settings -> Connection string page.
```
module.exports = {
    username: 'USERNAME',
    password:
      'PRIMARY-PASSWORD',
    contactPoint: 'CONTACT-POINT',
    keySpace: "uprofile",
    localDataCenter: "REGION"
};
```
Run uprofile.js in a terminal to start your start your node application:
```
npm start
```

About the code

The code included in this sample is intended to get you quickly started with a Node.js console application that connects to Azure Cosmos DB with the Cassandra API.

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Sample doesn't work anymore - Time to update!!

it has 3 fields and looks like you are trying to add 4 that raises a undefined error..

 {
            query: 'INSERT INTO  uprofile.user  (user_id, user_name , user_bcity) VALUES (?,?,?)',
            params: [1, 'LyubovK', 'Dubai', '2017-10-3132']
        },

After removing dates in query,

There was an error Logged batches are not supported by the service yet. Please use unlogged batches instead. ResponseError: Logged batches are not supported by the service yet. Please use unlogged batches instead.
    at FrameReader.readError (C:\Workspace\cassandracosmos\node_modules\cassandra-driver\lib\readers.js:326:15)
    at Parser.parseBody (C:\Workspace\cassandracosmos\node_modules\cassandra-driver\lib\streams.js:194:66)
    at Parser._transform (C:\Workspace\cassandracosmos\node_modules\cassandra-driver\lib\streams.js:137:10)
    at Parser.Transform._read (_stream_transform.js:190:10)
    at Parser.Transform._write (_stream_transform.js:178:12)
    at doWrite (_stream_writable.js:410:12)
    at writeOrBuffer (_stream_writable.js:394:5)
    at Parser.Writable.write (_stream_writable.js:294:11)
    at Protocol.ondata (_stream_readable.js:663:20)
    at Protocol.emit (events.js:182:13)

I came-up with below sample which works currently...
https://gist.github.com/prashanthmadi/afba93b4871fd8e79f22e13ecf05ecfc

Missing information in Readme.md causing sample not to work

Please provide us with the following information:

This issue is for a: (mark with an `x`)

- [X] bug report -> please search issues before submitting
- [ ] feature request
- [X] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Minimal steps to reproduce

The Readme.txt states wrongly that you just need to adapt config.js.
In uprofile.js there is this code:

var ssl_option = {
  cert : fs.readFileSync("path\to\cert"),
  secureProtocol: 'TLSv1_2_method'
};

Either extend the guide in readme.txt or offer this code as alternative

// For SSL provide a certificate:
// var ssl_option = {
//   cert : fs.readFileSync("path\to\cert"),
//   secureProtocol: 'TLSv1_2_method'
//  };
// For SSL without validation use:
process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";
var ssl_option = { rejectUnauthorized: false };

Any log messages given by the failure

Expected/desired behavior

Working sample

OS and Version?

Windows 7, 8 or 10. Linux (which distribution). macOS (Yosemite? El Capitan? Sierra?)

Versions

Mention any other details that might be useful

Thanks! We'll be in touch soon.

Could you please Provide code snippet for Typescript

Please provide us with the following information:

Can't use above code while using Typescript

This issue is for a: (mark with an `x`)

- [ ] bug report -> please search issues before submitting
- [x] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Minimal steps to reproduce

Any log messages given by the failure

Expected/desired behavior

OS and Version?

Windows 7, 8 or 10. Linux (which distribution). macOS (Yosemite? El Capitan? Sierra?)

Versions

Mention any other details that might be useful

Thanks! We'll be in touch soon.

azure-samples / azure-cosmos-db-cassandra-nodejs-getting-started Goto Github PK

azure-cosmos-db-cassandra-nodejs-getting-started's Introduction

Developing a Node.js app with Cassandra API using Azure Cosmos DB

Running this sample

About the code

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Versions

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