QIMB

QIMB is a zero management, platform agnostic message bus.

• Serverless architecture powered 100% on AWS services such as SQS, SNS and Lambda
• Zero management
• Easy setup
• Cross platform
• Publish/Subscribe pattern (multicast and unicast message without knowing subscribers)
• Direct message (unicast to known receiver)
• Guarantied message delivery
• Push delivery (using http hooks)
• Pull delivery
• Scaleable
• Fault tolerant

Delivery semantics

Icons

Application	AWS API Gateway	AWS Lambda	AWS SNS	AWS SQS	HTTP Request

Publish/Subscribe Multicast

1. Subscribers subscribe to Message Types (Red, Orange, Purple)
2. Publishers send messages to QiMB using the Message Type

• Publishers do not know the subscribers (or if there are any)

3. Message gets delivered to all subscribers of the Message Type

• If there are no subscribers when message is published, the message will never be delivered
• All subscribers are guarenteed to receive the message
• Messages may be delivered out of order

Push Delivery

• Multicast messages can optionally be delivered through a HTTP web hook to decrease latency
  • Approx 150 - 250 ms latency

Publish/Subscribe Unicast

1. Subscribers subscribe Message Types to Buckets

• e.g. Message Type "OrderCompleted" to Bucket "OrderDetails"

2. Publishers send messages to QiMB using the Message Type

• Publishers do not know the subscribers (or if there are any)

3. Message gets delivered to one subscriber of the Bucket

• If there are no subscribers when message is published, the message will eventually be delivered
• Only one subscriber is guarenteed to receive the message
• Messages may be delivered out of order

Direct Message

1. Subscribers subscribe to Direct Messages
2. Publishers send messages to QiMB using the Node ID of the subscriber

• Publishers needs to know the subcriber

3. Message gets delivered to the subscriber with the Node ID

• If there are no subscribers when message is published, the message will eventually be delivered
• Message is guarenteed to be delivered to the subscriber
• Messages may be delivered out of order

Build deployment package with SAM

• Build the visual studio solution
• Open \Qimb.Framework\package in command line and use the AWS cli to build a deployment package

aws cloudformation package --template-file app.yaml --output-template-file CloudFormationTamplate.yml --s3-bucket [s3-bucket] --profile [profile]

• Deploy the generated file CloudFormationTamplate.yml using CloudFormation