Best Practices
Enterprise best practices for DeepV-ADK integration.Security
API Key Management
Store API keys securely: ``typescript
// DO: Use environment variables
const client = new DeepVClient({
apiKey: process.env.DEEPV_API_KEY
});
// DON'T: Hardcode API keys
const client = new DeepVClient({
apiKey: 'sk_live_1234567890' // NEVER DO THIS
});
`
Key Rotation
Rotate API keys regularly:
`bash
Generate new key
curl -X POST https://api.deepv36.com/v1/keys \
-H "Authorization: Bearer CURRENT_KEY"
Update application
Delete old key after verification
`
Data Encryption
Encrypt sensitive data in transit and at rest:
`typescript
import { encrypt, decrypt } from './encryption';
// Encrypt before storing
const encryptedSSN = encrypt(applicantData.ssn);
await database.save({ ...applicantData, ssn: encryptedSSN });
// Decrypt before sending to DeepV
const decryptedSSN = decrypt(storedData.ssn);
await client.analyze({ applicantData: { ...storedData, ssn: decryptedSSN } });
`
Performance
Connection Pooling
Reuse client instances:
`typescript
// DO: Create once, reuse
let clientInstance: DeepVClient;
export function getClient() {
if (!clientInstance) {
clientInstance = new DeepVClient({
apiKey: process.env.DEEPV_API_KEY,
timeout: 30000
});
}
return clientInstance;
}
// DON'T: Create new client for each request
function analyze() {
const client = new DeepVClient({ apiKey: process.env.DEEPV_API_KEY });
// ...
}
`
Request Batching
Batch requests when possible:
`typescript
// DO: Batch multiple analyses
const results = await client.analyzeBatch({
applicants: applicants.map(a => ({ id: a.id, data: a }))
});
// DON'T: Multiple individual requests
for (const applicant of applicants) {
await client.analyze({ applicantData: applicant }); // Inefficient
}
`
Caching
Cache results appropriately:
`typescript
import Redis from 'ioredis';
const redis = new Redis();
async function analyzeWithCache(applicantData: ApplicantData) {
const cacheKey = analysis:${applicantData.id};
const cached = await redis.get(cacheKey);
if (cached) {
return JSON.parse(cached);
}
const result = await client.analyze({ applicantData });
// Cache for 1 hour
await redis.setex(cacheKey, 3600, JSON.stringify(result));
return result;
}
`
Error Handling
Comprehensive Error Handling
`typescript
async function robustAnalyze(applicantData: ApplicantData) {
try {
return await client.analyze({ applicantData });
} catch (error) {
if (error.code === 'RATE_LIMIT_EXCEEDED') {
// Wait and retry
await delay(error.retryAfter * 1000);
return robustAnalyze(applicantData);
}
if (error.code === 'INVALID_INPUT') {
// Log validation error
logger.error('Validation failed', { error, applicantData });
throw new ValidationError(error.message);
}
if (error.code === 'NETWORK_ERROR') {
// Retry with exponential backoff
return retryWithBackoff(() => client.analyze({ applicantData }));
}
// Log unexpected error
logger.error('Unexpected error', { error });
// Fallback to manual review
await flagForManualReview(applicantData);
throw error;
}
}
`
Circuit Breaker Pattern
Prevent cascading failures:
`typescript
import CircuitBreaker from 'opossum';
const breaker = new CircuitBreaker(
async (applicantData: ApplicantData) => {
return await client.analyze({ applicantData });
},
{
timeout: 5000,
errorThresholdPercentage: 50,
resetTimeout: 30000
}
);
breaker.fallback(async (applicantData: ApplicantData) => {
// Fallback logic
await flagForManualReview(applicantData);
return { decision: 'REVIEW', reason: 'Service temporarily unavailable' };
});
`
Data Validation
Input Validation
Validate before sending to API:
`typescript
import Joi from 'joi';
const applicantSchema = Joi.object({
firstName: Joi.string().required().min(1).max(100),
lastName: Joi.string().required().min(1).max(100),
ssn: Joi.string().pattern(/^\d{3}-\d{2}-\d{4}$/).required(),
email: Joi.string().email().required(),
phone: Joi.string().pattern(/^\d{3}-\d{4}$/).optional()
});
async function validateAndAnalyze(applicantData: ApplicantData) {
const { error, value } = applicantSchema.validate(applicantData);
if (error) {
throw new ValidationError(error.message);
}
return await client.analyze({ applicantData: value });
}
`
Output Validation
Validate API responses:
`typescript
function validateResponse(response: AnalysisResult) {
if (!response.riskScore || response.riskScore < 0 || response.riskScore > 1000) {
throw new Error('Invalid risk score in response');
}
if (!['APPROVE', 'DECLINE', 'REVIEW'].includes(response.decision)) {
throw new Error('Invalid decision in response');
}
return response;
}
`
Monitoring
Logging
Comprehensive logging:
`typescript
import { Logger } from './logger';
const logger = new Logger('deepv-integration');
async function monitoredAnalyze(applicantData: ApplicantData) {
const startTime = Date.now();
logger.info('Starting analysis', {
applicantId: applicantData.id,
timestamp: new Date().toISOString()
});
try {
const result = await client.analyze({ applicantData });
logger.info('Analysis completed', {
applicantId: applicantData.id,
decision: result.decision,
riskScore: result.riskScore,
duration: Date.now() - startTime
});
return result;
} catch (error) {
logger.error('Analysis failed', {
applicantId: applicantData.id,
error: error.message,
duration: Date.now() - startTime
});
throw error;
}
}
`
Metrics
Track key metrics:
`typescript
import { Metrics } from './metrics';
const metrics = new Metrics();
async function trackedAnalyze(applicantData: ApplicantData) {
const timer = metrics.startTimer('deepv.analysis.duration');
try {
const result = await client.analyze({ applicantData });
metrics.increment('deepv.analysis.success');
metrics.increment(deepv.decision.${result.decision.toLowerCase()});
metrics.gauge('deepv.risk_score', result.riskScore);
return result;
} catch (error) {
metrics.increment('deepv.analysis.error');
metrics.increment(deepv.error.${error.code});
throw error;
} finally {
timer.stop();
}
}
`
Testing
Unit Testing
`typescript
import { describe, it, expect, jest } from '@jest/globals';
describe('DeepV Integration', () => {
it('should analyze applicant successfully', async () => {
const mockClient = {
analyze: jest.fn().mockResolvedValue({
riskScore: 750,
decision: 'APPROVE'
})
};
const result = await analyzeApplicant(mockClient, applicantData);
expect(result.decision).toBe('APPROVE');
expect(mockClient.analyze).toHaveBeenCalledWith({
applicantData
});
});
it('should handle rate limiting', async () => {
const mockClient = {
analyze: jest.fn()
.mockRejectedValueOnce({ code: 'RATE_LIMIT_EXCEEDED', retryAfter: 1 })
.mockResolvedValueOnce({ riskScore: 750, decision: 'APPROVE' })
};
const result = await analyzeApplicant(mockClient, applicantData);
expect(result.decision).toBe('APPROVE');
expect(mockClient.analyze).toHaveBeenCalledTimes(2);
});
});
`
Integration Testing
`typescript
describe('DeepV Integration Tests', () => {
const testClient = new DeepVClient({
apiKey: process.env.DEEPV_TEST_API_KEY,
environment: 'test'
});
it('should perform real analysis', async () => {
const result = await testClient.analyze({
applicantData: testApplicantData
});
expect(result).toHaveProperty('riskScore');
expect(result).toHaveProperty('decision');
});
});
`
Compliance
Data Retention
Implement proper data retention policies:
`typescript
async function analyzeWithRetention(applicantData: ApplicantData) {
const result = await client.analyze({ applicantData });
// Store result with retention policy
await database.save({
...result,
applicantId: applicantData.id,
createdAt: new Date(),
expiresAt: new Date(Date.now() + 90 24 60 60 1000) // 90 days
});
return result;
}
`
Audit Logging
Maintain audit trails:
`typescript
async function auditedAnalyze(
applicantData: ApplicantData,
userId: string
) {
await auditLog.create({
action: 'ANALYSIS_REQUESTED',
userId,
applicantId: applicantData.id,
timestamp: new Date()
});
const result = await client.analyze({ applicantData });
await auditLog.create({
action: 'ANALYSIS_COMPLETED',
userId,
applicantId: applicantData.id,
decision: result.decision,
timestamp: new Date()
});
return result;
}
``
Next Steps
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