Building a Code Translator with Haystack, FastAPI and Gradio

Overview

Master the art of building an intelligent code translation system from scratch. In this course path, you'll develop a robust LLM-powered code translator using Haystack, expose it via a FastAPI backend, and craft an interactive Gradio UI—gaining hands-on skills in modern agentic AI engineering.

Syllabus

Course 1: Laying the Foundations for Code Translation with Haystack
Course 2: Exposing Your Code Translator with FastAPI
Course 3: Creating a User-Friendly Interface with Gradio

Courses

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3 hours
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In the first Course, you will develop the core translation pipeline using Haystack's NLP components with an underlying LLM. You will implement the translation routine along with dedicated routines to preprocess incoming code and postprocess the translated output, setting a strong foundation for further enhancements.
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3 hours
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This course teaches you how to expose your Haystack-powered code translation pipeline as a web service using FastAPI. You'll build a clean, maintainable API backend that makes your translation service accessible to other applications.
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3 hours
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The final Course of this path culminates by developing an interactive Gradio interface that connects seamlessly to your backend API. You will build a polished UI that provides real-time feedback, interactive selection for language pairs—all coordinated with your backend API.