# AWS Quantum Ledger Database QLDB

### Overview of AWS QLBD

AWS QLDB

* provides a **centralized ledger** for auditing and record keeping purposes
    
* Offers **Verifiability** - verifies integrity of past records
    
* is **Scalable**
    
* is **Serverless**
    
* can be provisoned with **AWS CloudFormation (IaC)** with additional user level control from client side with **IAM & ACL**
    
* can **trigger AWS Lambda events** to process other *downstream workflows*
    
* can integrate with **other AWS PaaS Services**
    

### PYTHON client API for AWS QLDB

AWS QLDB supports low-level python client (AWS SDK for Python *Boto 3* API)

Using Python, one can perform following operations on Amazon QLDB

* Create a New Ledger
    
* Test Connectivity to the Ledger
    
* Create Tables, Indexes, and Sample Data
    
* Query the Tables in a Ledger
    
* Modify Documents in a Ledger
    
* View the Revision History for a Document
    
* Verify a Document in a Ledger
    

Please refer to the [link](https://docs.aws.amazon.com/qldb/latest/developerguide/getting-started.python.tutorial.html) for more details.

# AWS Managed Blockchain AMB

Please refer [Live demo link](https://www.youtube.com/watch?v=WAIOBeQA2QQ) from 12MINS onward

### Key Concepts of AMB

Please Refer [Link for AMB Client Template](https://github.com/awslabs/amazon-managed-blockchain-client-templates)

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