API Integration and Middleware DevelopmentVishal Gupta
Connect your platform to payment, KYC, CRM, telephony and third-party APIs reliably, with webhooks, retries and clean error handling.
Introductory price for my first Contra clients.
What's included
Integration design: which APIs, what data moves, and what happens when a call fails
Middleware or API layer in Node.js, NestJS or Python
Webhooks with idempotent processing and retries, so a duplicate callback cannot double-charge or double-post
OpenAPI documentation your team can work from
Monitoring and alerting on the integration points
Proof
Identity verification integrated with multiple providers in a multi-tenant architecture, improving the KYC process by 79 percent. Third-party hotel distribution APIs, payment webhooks, and calling integrations with RingCentral and Plivo.
Starting at$1,800
Duration3 weeks
Tags
Node.js
PostgreSQL
Python
API Integration
Backend Engineer
REST API
Service provided by
Vishal Gupta proMumbai, India
- 6
- Followers
API Integration and Middleware DevelopmentVishal Gupta
Starting at$1,800
Duration3 weeks
Tags
Node.js
PostgreSQL
Python
API Integration
Backend Engineer
REST API
Connect your platform to payment, KYC, CRM, telephony and third-party APIs reliably, with webhooks, retries and clean error handling.
Introductory price for my first Contra clients.
What's included
Integration design: which APIs, what data moves, and what happens when a call fails
Middleware or API layer in Node.js, NestJS or Python
Webhooks with idempotent processing and retries, so a duplicate callback cannot double-charge or double-post
OpenAPI documentation your team can work from
Monitoring and alerting on the integration points
Proof
Identity verification integrated with multiple providers in a multi-tenant architecture, improving the KYC process by 79 percent. Third-party hotel distribution APIs, payment webhooks, and calling integrations with RingCentral and Plivo.
$1,800