Developer Tutorials
Step-by-step guides and code samples to help you master our tools for blockchain, AI, and decentralized web3 systems.
Featured Topics
Getting Started
Learn the basics of identity management, smart contract deployment, and API client initialization.
View TutorialAPI Integration
Implement authentication flows, data validation, and secure communication protocols using our SDKs.
View TutorialBest Practices
Optimize performance and security in production environments using our recommended patterns and workflows.
View TutorialGetting Started
Initialize Your Workspace
-
1
Create an API key by logging into the developer portal dashboard
-
2
Clone our starter repository from GitHub (instructions in the SDK documentation)
-
3
Follow the setup guide for your preferred language and framework
-
4
Run the sample application to verify installation success
- Python:
pip install nnblefeia-sdk
- Node.js:
npm install @nnblefeia/identity-sdk
- Java:
implementation 'com.noblefeia:core:3.4.1'
// Initialize SDK with API key
import { IdentityClient } from '@nnblefeia/identity-sdk'
const client = new IdentityClient({
apiKey: 'your-api-key-from-dashboard',
environment: 'sandbox'
});
// Create a new identity
const { identityId } = await client.createIdentity({
metadata: {
name: 'Example Project',
description: 'Test identity for tutorial'
},
blockchain: 'ethereum'
});
API Integration
Authentication Flow
- • Configure SDK with your API credentials
- • Use
client.authenticate()
to establish session - • Store returned access tokens securely
- • Include tokens in API request headers
- • Refresh tokens automatically with
client.refreshToken()
Error Handling
- • 401 Unauthorized: Invalid or missing credentials
- • 429 Too Many Requests: Rate limiting exceeded
- • 503 Service Unavailable: Temporary API maintenance
- • Always use try/catch or .catch() for graceful recovery
- • Retry failed requests with exponential backoff strategy
Security Best Practices
- • Never expose API keys in client-side code
- • Use environment variables for credentials
- • Enable IP whitelisting in production
- • Rotate keys regularly at least every 90 days
- • Implement rate limits for production traffic
Testing Workflows
- • Use sandbox environments for experimentation
- • Create disposable test identities first
- • Monitor API requests in the developer dashboard
- • Include test coverage for all new integrations
- • Simulate edge cases with load/stress testing
Best Practices
Performance Optimization
- Bulk operations for identity management
- Caching frequently requested credentials
- Asynchronous processing for long operations
Security Recommendations
- Never commit API secrets to version control
- Regularly audit access logs in developer console
- Mandatory encryption for all sensitive data
Advanced Topics

Distributed Deployment Patterns
Learn how to deploy identity services across multiple blockchain networks simultaneously for redundancy and scalability.
Read More
Zero-Knowledge Verification
Implement cryptographic verification without exposing any identity information through our privacy-preserving API layer.
Read More
Enterprise Solutions
Connect large-scale enterprise operations using our bulk identity management tools and reporting APIs.
Read More
AI-Driven Workflows
Implement machine-learned verification patterns for automated identity authentication operations.
Read MoreJoin the Community
Participate in our open development process, contribute to documentation, or ask questions in our forums.