API Architecture Overview Template
Documenting the API strategy, gateway architecture, versioning approach, and governance model
The API Architecture Overview template provides a structured approach to documenting the API strategy, gateway architecture, versioning approach, and governance model.
Template Sections
This template includes 7 sections.
API Strategy
Describe the overall API strategy, design philosophy (REST, GraphQL, gRPC), and target consumers (internal teams,...
API Architecture Diagram
Diagram section
API Design Principles
State the principles governing API design (e.g., RESTful conventions, consistent naming, contract-first design)
API Versioning Strategy
Document the versioning scheme (URL path, header, query param), deprecation timeline, and sunset policy
API Security Controls
Document authentication mechanisms (OAuth2, API keys, mTLS), rate limiting, and authorisation model
API Performance Requirements
Define latency targets (P50, P95, P99), throughput limits, and availability requirements for the API layer
API Governance Checklist
Define the review checklist for new API designs before they are approved and published
Section Details
Block Types Used
| Section | Block Type | Purpose |
|---|---|---|
| API Strategy | Rich Text | Describe the overall API strategy, design philosophy (REST, GraphQL, gRPC), and... |
| API Architecture Diagram | Diagram | Diagram section |
| API Design Principles | Principle | State the principles governing API design (e.g., RESTful conventions,... |
| API Versioning Strategy | API Versioning Strategy | Document the versioning scheme (URL path, header, query param), deprecation... |
| API Security Controls | Security Control | Document authentication mechanisms (OAuth2, API keys, mTLS), rate limiting, and... |
| API Performance Requirements | Non-Functional Requirement | Define latency targets (P50, P95, P99), throughput limits, and availability... |
| API Governance Checklist | Governance Checklist | Define the review checklist for new API designs before they are approved and... |
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