Pipeline Examples

This directory contains real-world examples demonstrating constellation-lang patterns and best practices.

Examples by Category

Text Processing

• Text Cleaning Pipeline - Normalize and clean user input
• Content Analysis Pipeline - Analyze text for metrics and keywords

Data Processing

• Data Statistics Pipeline - Calculate summary statistics on numeric data
• List Processing Pipeline - Filter and transform lists with lambdas

ML Pipelines

• Batch Data Enrichment - Enrich Candidates with context data
• Scoring Pipeline - Multi-factor scoring with conditional logic

Running Examples

Quick Start

The easiest way to run these examples is with the VSCode extension. Copy the code, paste into a .cst file, and press Ctrl+Shift+R.

In VSCode

1. Copy the code block to a .cst file
2. Press Ctrl+Shift+R to run
3. Enter inputs when prompted

Via HTTP API

curl -X POST http://localhost:8080/run \
  -H "Content-Type: application/json" \
  -d '{
    "source": "<paste source code here>",
    "inputs": { ... }
  }'

Prerequisites

Server Required

Both the VSCode extension and HTTP API methods require a running Constellation server.

Make sure the server is running:

make server

Example Complexity Guide

Example	Difficulty	Concepts Covered
Text Cleaning	Beginner	Basic functions, chaining
Data Statistics	Beginner	List functions, multiple outputs
Content Analysis	Intermediate	Record types, field access
List Processing	Intermediate	Higher-order functions, lambdas
Batch Enrichment	Intermediate	Candidates, merge, projection
Scoring Pipeline	Advanced	Conditionals, type algebra, custom types

Learning Path

Start with the Beginner examples (Text Cleaning, Data Statistics) to understand the basics, then progress to Intermediate patterns (List Processing, Batch Enrichment) before tackling the Advanced Scoring Pipeline.

Next Steps

After working through these examples:

• Check the Standard Library Reference for all available functions
• Read the constellation-lang Reference for complete syntax
• Build your own custom modules following the Getting Started Guide