---
title: "Aseem Aggawral (@aseemaggarwal) | Hashnode"
description: "Aspiring Data Scientist | AI Enthusiast | Documenting my journey and sharing what I learn. Read the latest articles by Aseem Aggawral on Hashnode."
url: "https://hashnode.com/@aseemaggarwal"
---

@aseemaggarwal

# Aseem Aggawral

@aseemaggarwal · Joined September 2025

Aspiring Data Scientist | AI Enthusiast | Documenting my journey and sharing what I learn.

### [10 - Guardrails, Redis Cache, Response Pipeline, and Safe Error Handling](https://aseemtech.hashnode.dev/10-guardrails-redis-cache-response-pipeline-and-safe-error-handling?utm_source=hashnode&utm_medium=feed)

Learn how FastAPI AI backends use guardrails, Redis cache, response validation, safe errors, and pipelines to return reliable AI responses.

16 min read · [aseemtech.hashnode.dev](https://aseemtech.hashnode.dev/10-guardrails-redis-cache-response-pipeline-and-safe-error-handling?utm_source=hashnode&utm_medium=feed)

[Aug 6](https://hashnode.com/posts/10-guardrails-redis-cache-response-pipeline-and-safe-error-handling/6a74abf410993cfe7cc13a59)

### [09 - Provider Abstraction: Ollama, OpenAI, Model Registry, and Inference Router](https://aseemtech.hashnode.dev/09-provider-abstraction-ollama-openai-model-registry-and-inference-router?utm_source=hashnode&utm_medium=feed)

FastAPI AI backend provider abstraction with Ollama, OpenAI, model registry, inference routing, fallback, retries, and circuit breakers.

19 min read · [aseemtech.hashnode.dev](https://aseemtech.hashnode.dev/09-provider-abstraction-ollama-openai-model-registry-and-inference-router?utm_source=hashnode&utm_medium=feed)

[Aug 6](https://hashnode.com/posts/09-provider-abstraction-ollama-openai-model-registry-and-inference-router/6a7495dae139c2b6290eb3bb)

### [08 - AI Integration Architecture: From Model Call to Enterprise Pipeline](https://aseemtech.hashnode.dev/08-ai-integration-architecture-from-model-call-to-enterprise-pipeline?utm_source=hashnode&utm_medium=feed)

Learn how a FastAPI AI backend handles schemas, guardrails, caching, provider routing, fallback, validation, and observability.

9 min read · [aseemtech.hashnode.dev](https://aseemtech.hashnode.dev/08-ai-integration-architecture-from-model-call-to-enterprise-pipeline?utm_source=hashnode&utm_medium=feed)

[Jul 28](https://hashnode.com/posts/08-ai-integration-architecture-from-model-call-to-enterprise-pipeline/6a6920c5ae755cf76fdd9ad9)

### [07 - Dependency Injection in FastAPI: The Backbone of Clean Backend Design](https://aseemtech.hashnode.dev/07-dependency-injection-in-fastapi-the-backbone-of-clean-backend-design?utm_source=hashnode&utm_medium=feed)

Learn how FastAPI dependency injection keeps backend code clean, testable, and scalable with routes, use cases, repositories, and AI services.

8 min read · [aseemtech.hashnode.dev](https://aseemtech.hashnode.dev/07-dependency-injection-in-fastapi-the-backbone-of-clean-backend-design?utm_source=hashnode&utm_medium=feed)

[Jul 28](https://hashnode.com/posts/07-dependency-injection-in-fastapi-the-backbone-of-clean-backend-design/6a6918419afb6a5f617c51bd)

### [06 - Authentication in FastAPI: Register, Login, JWT, and Protected Routes](https://aseemtech.hashnode.dev/06-authentication-in-fastapi-register-login-jwt-and-protected-routes?utm_source=hashnode&utm_medium=feed)

Learn how FastAPI handles registration, login, password hashing, JWT access tokens, protected routes, roles, and audit logging.

9 min read · [aseemtech.hashnode.dev](https://aseemtech.hashnode.dev/06-authentication-in-fastapi-register-login-jwt-and-protected-routes?utm_source=hashnode&utm_medium=feed)

[Jul 28](https://hashnode.com/posts/06-authentication-in-fastapi-register-login-jwt-and-protected-routes/6a690ae099b1b4f678cc10a9)