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Fintech Application API Design

Fintech application API design ek specialized software engineering domain hai jo financial…

Overview

Fintech Application API Design — Quick Facts

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Property: Detail

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Full Name: Fintech Application API Design

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Category: Software Architecture / API…

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Domain: Financial Technology (Fintech)

Topic 1

Infobox

🎨 | Property | Detail | |---|---| | Full Name | Fintech Application API Design | | Category…

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Itihaas

✏️ Fintech APIs ka evolution traditional banking ke SOAP/XML web services se shuru hua.…

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Core Concepts

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/v1/payments — payments collection

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/v1/payments/{payment_id} — single…

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/v1/customers/{customer_id}/account…

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Plural nouns use karo resources ke…

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Authentication aur Authorization

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Authorization Code Flow —…

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Client Credentials Flow —…

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PKCE (Proof Key for Code Exchange)…

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Publishable Key — client-side safe…

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Payment API Design Patterns

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Webhook payload me event type,…

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Webhook signature verification…

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Retry logic implement karo…

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Idempotent webhook handlers banao…

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API Security

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Card numbers (PAN) kabhi plain…

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Tokenization use karo — real card…

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API logs me sensitive data mask…

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TLS 1.2+ enforce karo sabhi…

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Versioning aur Rate Limiting

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Minimum 6-12 months notice before…

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Deprecation headers return karo:…

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Migration guides provide karo

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Old version par warning logs…

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Sandbox aur Testing

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Production-identical endpoints…

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Test credentials (API keys) alag…

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Simulated responses — success,…

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Test card numbers / test bank…

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Comparison Table

🎨 | Feature | REST API | GraphQL | gRPC | |---|---|---|---| | Protocol | HTTP/1.1, HTTP/2 |…

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API Request Flow Diagram

✏️ `mermaid sequenceDiagram participant Client as Merchant App participant Gateway as API…

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Challenges aur Solutions

🖌️ Challenge 1: Idempotency at Scale Problem: Millions of concurrent requests me idempotency…

Comparison

Comparison Table

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Protocol: HTTP/1.1, HTTP/2

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Data Format: JSON

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Use Case in Fintech: Public APIs,…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Fintech Application API Design ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Fintech Application API Design ka 'Full Name' kya hai?

Complete! 🎉

Fintech Application API Design Complete!

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