01
External API integration
The platform integrates with an external SSL certificate provider, requiring application logic to translate customer-facing workflows into vendor API operations and handle the resulting lifecycle states.
Security & Digital Services
UseSSL
A digital services platform integrating SSL certificate workflows, external vendor APIs, customer accounts, SSO, payments, order management, automated billing, and service operations.
01 — Overview
Project details
A digital services platform connecting customers, SSL certificate products, external certificate providers, payments, orders, accounts, and billing workflows.
02 — The problem
The challenge
The application sits between customers and external certificate infrastructure, so the system has to coordinate product selection, customer information, external API operations, payment state, order state, and billing without losing track of where an operation currently stands.
03 — The approach
How I approached it
I worked across the application and integration layers, connecting the customer-facing product experience with backend workflows, external APIs, authentication, payments, invoicing, and administrative operations.
04 — Engineering
Engineering breakdown
The important parts of the project were not just the interface, but the systems and decisions behind it.
02
Customer and order workflows
Customer accounts, product orders, certificate lifecycle operations, and service states need to remain connected so that users and administrators can understand what is happening with an order.
03
Payments and billing
The system integrates payment processing with order management and automated invoice generation, keeping financial operations connected to the underlying service workflow.
04
Operational tooling
Administrative workflows provide visibility and control over customers, products, orders, and service operations rather than requiring every task to be handled manually at the infrastructure level.
05
Key engineering work
- SSL certificate lifecycle workflows
- External vendor API integration
- Customer accounts
- SSO integration
- Payment processing
- Order management
- Automated billing
- Administrative operations
06
Key decisions
- Keep external vendor operations behind application-level service boundaries.
- Separate payment state from service fulfillment state.
- Treat billing and order records as part of the operational workflow.
- Use server-side integrations for sensitive vendor and payment operations.
07
Results
- Connected customer-facing purchasing with downstream SSL service workflows.
- Reduced manual steps around ordering, billing, and certificate operations.
- Created a single platform for customer and administrative service management.
08
What I learned
- Integration-heavy applications need explicit state boundaries between external systems.
- Payment success does not automatically mean service fulfillment is complete.
- Operational visibility is a product requirement, not merely an admin convenience.
09 — Stack
Technologies
Next.jsTypeScriptReactPrismaMySQLDockerCloudinaryStripeKhaltiResendREST APIsSSO
10 — Visuals
Project gallery
Selected visual highlights from the UseSSL project.
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