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World Congress 2026 Europe • Jul 10, 2026 • Session details

An Opinionated Guide to Bulletproof APIs

Rustam Mehmandarov

Returning generic HTTP errors is a dangerous anti-pattern. Discover structured, language-agnostic patterns to isolate cross-cutting concerns and build genuinely bulletproof APIs.

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#1 about 6 min

Separating internal domain models from external API models

Leaking internal complexities into external endpoints creates severe integration challenges and unknowingly exposes architectural implementations.

#2 about 5 min

Keeping business logic clean with API gatekeepers

Isolating authentication, validation, and sanitization from raw endpoint queries prevents dirty input from polluting the core application.

#3 about 3 min

Standardizing endpoint authorization and access control

Handling identity verification implicitly through robust control frameworks mitigates the fragility of complex code-level conditional checking.

#4 about 3 min

Moving beyond logging to comprehensive API observability

Injecting correlation identifiers and contextual traces into requests enhances system debugging limits without compromising or exposing restricted user information.

#5 about 2 min

Exposing liveness and readiness probes for platforms

Automated deployment tools rely on distinct health endpoints to safely direct request traffic and manage service initialization states.

#6 about 4 min

Keeping API documentation accurate via living contracts

Integrating functional interface frameworks natively within code blocks prevents stale documentation artifacts and continuously standardizes client-facing descriptions.

#7 about 2 min

Strategies for API versioning and handling deprecations

Instituting structured versioning logic alongside explicit sunset timelines provides clear off-ramps against ballooning technical debt.

#8 about 4 min

Providing actionable machine-readable problem details for errors

Mapping server exceptions onto formal HTTP condition templates eliminates arbitrary 200 statuses and obscure stack trace drops.

#9 about 3 min

Reviewing production-grade API patterns and resources

Deploying language-agnostic frameworks unifies engineering reliability objectives across contrasting internal capabilities and technical infrastructures.

Matching moments

1:40 min

Summarizing key engineering lessons for platform API development

Anto Anto · WWC 2024

9:56 min

Final code walk-through and audience Q&A session

Germán Álvarez · LIVE

3:10 min

Understanding the core concepts of API design

Alen Pokos · LIVE

3:32 min

Designing outstanding APIs with simplicity, safety, and evolvability

Anto Anto · WWC 2024

4:43 min

Best practices for implementing microservice architectures successfully

Michael Eisenbart · LIVE

6:44 min

Designing a resilient API gateway architecture

Lars Hesel Christensen +1 · LIVE

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