Cassandra DataTables Using RESTful API

CASSANDRA Data Tables as REST API

Problem Scope1

This project will provide a GUI and a service layer on top of Cassandra, exposing data(and services) via REST API.

● Exposes Cassandra data tables as a REST API for huge volumes of data.

● Build a web-based user interface to expose the API and enable querying.

● Enable pagination of results for convenience and readability of the user.

PROCESS MODEL

Automatically organize data into tables using Cassandra.

Display results with pagination

Assemble collected data.

Provide REST API for querying the database.

Display contents of database in user friendly format.

Logical Flow

Home Page Rest call Backend Server

Parsing

Cassandra Query

ProcessingRealtime O/P with pagination

Implementation Details

Populate the cassandra databaseo Build cassandra keyspaces and column family o Populate the database according to the data

provided.

Query inputo Queries are received using RESTFUL API calls.o The REST query is parsed and converted into a

database query and then the database is queried.

Displaying Results

o Details related to queries are retrieved from the database.

o Error handling in case of invalid queries is done.

o Pagination is done to handle large data. One page is displayed at a time.

o UI is built using Jinja2 and HTML, bootstrap.

List of APIs provided

◦QueryColumnFamily◦CreateKeyspace ◦DropKeyspace ◦ListKeyspace ◦CreateColumnFamily◦DropColumnFamily◦ListColumnFamily

Technologies Used

★ User Interface○Jinja2○Bootstrap, HTML.

★ REST APIs○ Flask

★ Communication to cassandra ○Python Driver○Cql Engine

Benefits for the stakeholders

Efficient handling of large data.

A simple User Interface for querying the data.

Using REST APIs makes querying simpler and robust.

Provides a better interface for retrieved data with pagination.

DEMO

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HOMEPAGE

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KeySpace Operations

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Creating KeySpace

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Dropping a KeySpace

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Listing KeySpaces

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ColumnFamily Operations

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Listing ColumnFamily

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Query Cassandra Result

Thanks!ANY QUESTIONS?