DIGIT Core
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2.9-LTS
2.9-LTS
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    • Why DIGIT?
    • Principles
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      • Service Architecture
      • Technology Architecture
        • Open Source Tools
      • Infrastructure Architecture
      • Deployment Architecture
    • API Specifications
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        • Signed Audit Performance Testing Results
      • API Gateway
        • Configuring Gateway Rate Limiting
      • Boundary Service
        • Migrate Old Boundary Data - Steps
      • Email Notification Service
      • Encryption Service
        • Encryption Client Library
        • User Data Security Architecture
        • Guidelines for supporting User Privacy in a module
      • FileStore Service
      • ID Generation Service
      • Indexer Service
        • Indexer Configuration
      • Internal Gateway
      • Location
      • Localization Service
        • Configuring Localization
          • Setup Base Product Localisation
          • Configure SMS and Email
      • MDMS V2 (Master Data Management Service)
        • Adopt New MDMS - Steps
        • MDMS (Master Data Management Service)
          • Setting up Master Data
            • MDMS Overview
            • MDMS Rewritten
            • Configuring Tenants
            • Configuring Master Data
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      • OTP Service
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        • Persister Configuration
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        • Setting Up SMS Gateway
          • Using The Generic GET & POST SMS Gateway Interface
      • User
        • User Session Management
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      • URL Shortening Service
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        • Setting Up Workflows
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      • Libraries
        • Tracer Library
        • Encryption Client
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      • Quick Setup (AWS)
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      • Backend Developer Guide
        • Section 0: Prep
          • Development Pre-requisites
          • Design Inputs
            • High Level Design
            • Low Level Design
          • Development Environment Setup
        • Section 1: Create Project
          • Generate Project Using API Specs
          • Create Database
          • Configure Application Properties
          • Import Core Models
          • Implement Repository Layer
          • Create Validation & Enrichment Layers
          • Implement Service Layer
          • Build The Web Layer
        • Section 2: Integrate Persister & Kafka
          • Add Kafka Configuration
          • Implement Kafka Producer & Consumer
          • Add Persister Configuration
          • Enable Signed Audit
        • Section 3: Integrate Microservices
          • Integrate IDGen Service
          • Integrate User Service
          • Add MDMS Configuration
          • Integrate MDMS Service
          • Add Workflow Configuration
          • Integrate Workflow Service
          • Integrate URL Shortener Service
        • Section 4: Integrate Billing & Payment
          • Custom Calculator Service
          • Integrate Calculator Service
          • Payment Back Update
        • Section 5: Other Advanced Integrations
          • Add Indexer Configuration
          • Certificate Generation
        • Section 6: Run Final Application
        • Section 7: Build & Deploy Instructions
        • FAQs
      • UI Developer Guide
        • DIGIT-UI
          • UI Components Standardisation
            • DIGIT UI Core React Components
            • DIGIT UI Core Flutter Components
              • Input Field
              • Radio
              • Toggle
              • Button
              • Dropdown
              • Checkbox
              • Toast
              • Info Card
            • DIGIT UI Components v0.2.0
              • Foundation
                • Typography
                • Colour Pallete
                • Spacer
              • Atom
                • Accordion
                • Button
                • Checkbox
        • DIGIT UI Development Pre-requisites
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        • Local Development Setup
        • Run Application
        • Build & Deploy
        • Pre-defined Screens In DIGIT-UI
          • Create Screen (FormComposer)
          • Inbox/Search Screen
          • Workflow Component
        • Create a New UI Module/Package
          • Project Structure
          • Install Dependency
          • Module.js
          • Import Required Components
          • Common Hooks
        • Employee Module Setup
          • Write Employee Module Code
          • Create Form - Create Screen
        • Citizen Module Setup
          • Sample screenshots
          • Citizen Landing Screen
          • Write Citizen Module Code
        • Customisation
          • Integrate External Web Application/UI With DIGIT UI
          • Utility - Pre-Process MDMS Configuration
          • CSS Customisation
          • Kibana Dashboard Integration With DSS Module
          • Login Page
        • Setup Monitoring Tools
        • Android Web View & How To Generate APK
        • FAQs
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          • Create Form Screen
        • Build Deploy & Publish
          • Build & Deploy Flutter Web Application
          • Generate Android APKs & App Bundles
          • Publishing App Bundle To Play Store
        • State Management With Provider & Bloc
          • Provider State Management
          • BloC State Management
        • Best Practices & Tips
        • Troubleshooting
    • Operations Guide
      • DIGIT - Infra Overview
      • Kubernetes
        • RBAC Management
        • Database Dump - Playground
      • Setup Jenkins - Docker way
      • GitOps
        • Git Client installation
        • GitHub organization creation
        • Adding new SSH key to it
        • GitHub repo creation
        • GitHub Team creation
        • Enabling Branch protection:
        • CODEOWNER Reviewers
        • Adding Users to the Git
        • Setting up an OAuth with GitHub
        • Fork (Fork the mdms,config repo with a tenant-specific branch)
      • Working with Kubernetes
        • Installation of Kubectl
      • Containerizing application using Docker
        • Creation of Dockerhub account
      • Infra Provisioning Using Terraform
        • Installation of Terraform
      • Customise Existing Terraform Templates
      • Cert-Manager
        • Obtaining SSL certificates with the help of cluster-issuer
      • Moving Docker Images
      • Pre and post deployment checklist
      • Multi-tenancy Setup
      • Availability
        • Infrastructure
        • Backbone services
          • Database
          • Kafka
          • Kafka Connect
          • Elastic search
            • Elastic Search Rolling Upgrade
            • ElasticSearch Direct Upgrade
        • Core services
        • DIGIT apps
        • DSS dashboard
      • Observability
        • ES-Curator - Clear Old Logs/indices
        • Monitoring
        • Environment Changes
        • Tracing
        • Jaeger Tracing Setup
        • Logging
        • eGov Monitoring & Alerting Setup
        • eGov Logging Setup
      • Performance
        • What to monitor?
          • Infrastructure
          • Backbone services
          • Core services
        • Identifying bottlenecks
        • Solutions
      • Handling errors
      • Security
      • Reliability and disaster recovery
      • Privacy
      • Skillsets/hiring
      • Incident management processes
      • Kafka Troubleshooting Guide
        • How to clean up Kafka logs
        • How to change or reset consumer offset in Kafka?
      • SRE Rituals
      • FAQs
        • I am unable to login to the citizen or employee portal. The UI shows a spinner.
        • My DSS dashboard is not reflecting accurate numbers? What can I do?
      • Deployment using helm
        • Helm Installation
        • Helm chart creation
        • Helm chart customization
      • How to Dump Elasticsearch Indexes
      • Deploy Nginx-Ingress-Controller
      • Deployment Job Pipeline Setup
      • OAuth2-Proxy Setup
      • Jira Ticket Creation
    • Implementation Guide
    • Security & Privacy Guide
      • Security & Privacy Guidelines For Product Developers
      • Security & Privacy Guidelines For Solution Implementing Agencies
      • Security & Privacy Guidelines For Program Owners
  • 🚀Accelerators
    • UI Frameworks
      • Service Build Updates
    • Integrations
      • Payment
      • Notification
      • Transaction
      • Verification
      • View
      • Calculation
    • Concepts
      • Deployment - Key Concepts
        • Security Practices
        • Readiness & Liveness
        • Resource Requests & Limits
        • Deploying DIGIT Services
        • Deployment Architecture
        • Routing Traffic
        • Backbone Deployment
    • API Playground
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      • API Checklist
      • Security Checklist
        • Security Guidelines Handbook
        • Security Flow - Exemplar
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  1. Platform
  2. Architecture

Service Architecture

Microservice reusable building blocks architecture

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Last updated 3 months ago

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DIGIT consists of several reusable building blocks on top of which one can develop a citizen service delivery solution. Read on to learn more about the microservice building blocks architecture.

Microservice - Building Blocks

To develop a new service, one needs to create a microservice and make it available through the API gateway. The API gateway calls the for authentication and the for authorisation. The service developer can configure the roles and map the roles and actions using the .

- The service user interface can be developed as part of the Citizen Dashboard or can be an independent solution. The citizen can log in using a mobile number and OTP. They can apply for a new service using the service UI. The allows users to upload relevant documentation.

The stores the submitted application asynchronously into the registry. The PII data is encrypted using the before storing. All changes are digitally signed and logged using the (ongoing). The transforms and enriches the application data. The also strips the PII data and sends it to the .

The executes configured queries on the stripped data and makes the aggregated data available to the for the administrator or employee view. The views are in accordance with the user role access which is also configurable.

The generates a demand based on the calculation logic for the given service delivery. Based on this demand, a bill is generated against which the payment has to be made. The citizen can either make an online payment or can pay at the counter (offline payment). The is called for online payments and this is integrated with third-party service providers. The service routes the citizen to the service provider's website and then back to the citizen's UI once the payment is successful.

The is the payment registry and records all the successful payments. For offline payments, a record is made in the collection service after the collection of the Cash/Cheque/DD/RTGS. The allowed payment modes are configurable. The PDF service is used to generate receipts based on a configurable template.

The service then triggers the to assign tasks for verification and approval. Workflows can be configured. The Employee Service allows employee registrations and enables them to log in using the Employee Dashboard. The dashboard displays the list of pending applications as per the employee's role. The employee can perform actions on these applications using the employee UI for the service.

As the status changes or actions are taken on the applications the relevant sends the updates to the applicant. Once the application is approved, the applicant can download the final certificate which is generated using .

DIGIT has multi-tenant configuration capabilities. The allows the configuration of the tenant hierarchy and maps multiple tenants like Country, State, District or State, Department, and Sub Department. Each tenant can have their own configurations for service, roles, workflows etc. This allows for variations across different agencies in tune with the local context.

The facilitates the support of multiple languages in DIGIT. This service stores the translations in multiple languages.

🖥️
Citizen Dashboard
File Store Service
Persister Service
Encryption Service
Signed Audit Service
Indexer Service
Indexer Service
Analytics Data Store(ElasticSearch)
Dashboard Backend Service
Dashboard Frontend
Billing Service
Payment Gateway Service
Collection service
Workflow Service
SMS and Email Notification Service
PDF Service
Location Service
Language Service
User Service
Access Service
Master Data Management Service
DIGIT Services
End to End Citizen Flow