eCloudLife eInvoice — OpenData / OpenFinance Integration

Standard deliverables

• Protocol analysis & threat matrix for the mobile app network flows
• OpenAPI (Swagger) specification for all endpoints
• Production-ready API server code (Node.js / Express or Python / FastAPI)
• Client SDK examples (JavaScript / Python) and Postman collection
• Automated test scripts and CI instructions
• Deployment guide and minimal infra (Docker / Kubernetes templates)

Sample API: invoice ingestion

POST /api/v1/invoices/upload
Content-Type: multipart/form-data
Authorization: Bearer <API_KEY>

Form fields:
 - file: image/jpeg | image/png | application/pdf
 - source: 'mobile' | 'web' | 'bulk'
 - metadata: { 'device_id': '...', 'user_id': '...' }

Response 202 Accepted:
{ 'job_id': 'job_abc123', 'status': 'processing' }

GET /api/v1/invoices/job/job_abc123
Response 200:
{
  'job_id':'job_abc123',
  'status':'done',
  'invoices':[{
    'invoice_id':'inv_20250101_001',
    'vendor':'Store ABC',
    'date':'2025-01-01',
    'total':125.40,
    'tax':20.40,
    'items':[{'name':'Coffee','qty':1,'price':45.00}],
    'raw_ocr_text':'...'
  }]
}

Reconciliation & exports

Endpoints for matching invoices to payments, generating monthly tax reports, and exporting XLSX/CSV/PDF for accounting systems.

Core technical benefits

• OpenAPI-first design for easy onboarding
• Stateless, scalable REST endpoints with idempotency for uploads
• Secure storage: encrypted at rest, per-tenant keys and retention policies
• GDPR / local privacy compliance support (consent records, data minimization)
• Webhook callbacks for job completion, prize match, and claim events

Typical integration flow (summary)

1. Client registers and receives API key / OAuth client
2. Upload invoice images or push structured invoice data
3. System performs OCR → vendor normalization → tax/line parsing
4. Auto-match to payments & prizes; generate reconciliation rows
5. Export or sync to accounting / payroll systems via Open Data connectors

API Integration Instructions (developer checklist)

1. Provide test account & sample invoices (10–50 files) so we can map vendor formats.
2. Decide authentication mode: API Key (fast) or OAuth2 (recommended for multi-user apps).
3. Configure webhook URL for async job notifications and prize-claim callbacks.
4. Agree on PII retention policy and region (data residency).
5. Run validation: we deliver Postman / cURL examples and a script to run integration tests.

Code sample (Node.js - invoice upload)

// upload.js (Node.js + fetch)
import fs from 'fs'
import fetch from 'node-fetch'

const file = fs.createReadStream('./sample-invoice.jpg')
const form = new FormData()
form.append('file', file)
form.append('source', 'mobile')

const res = await fetch('https://api.your-domain.com/api/v1/invoices/upload', {
  method: 'POST',
  headers: { 'Authorization': 'Bearer YOUR_API_KEY' },
  body: form
})
const json = await res.json()
console.log(json)

About our studio

We are a technical service studio specializing in App interface integration and authorized API integration. Our core strengths: protocol analysis, interface refactoring, OpenData/OpenFinance connectors, third-party interface integration, automated data scripting and full documentation delivery. Team members have deep product, mobile and fintech experience — we deliver production-ready API source code, OpenAPI specs, SDKs and test plans.

• Cross-platform: Android + iOS protocol analysis
• Compliance-first: privacy, KYC notes and retention policies
• Transparent pricing: projects start at $300

Contact

To request a proposal, share the appPackageId, sample invoices, and integration goals. We will respond with a tailored plan and fixed quote.

Contact Us