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⚡ AI Lessons
Dev.to · ThaSha
⚡ AI Lesson
3mo ago
DataWeave partition() for Bulk API Responses: Stop Returning Silent 200 OKs
Our bulk import API returned 200 OK on every request. Nobody noticed that 40% of records were failing...
Dev.to · ThaSha
🧠 Large Language Models
⚡ AI Lesson
3mo ago
Building LLM Prompts From Enterprise Data in DataWeave: 2 Traps That Garbled My AI Output
I connected a MuleSoft API to an LLM last quarter for a support ticket classifier. The API call was...
Dev.to · ThaSha
⚡ AI Lesson
3mo ago
DataWeave match/case: Replace If/Else Chains and Avoid the Missing Else Crash
I replaced a 40-line if/else chain with 4 match/case lines last month. Then I forgot the else clause...
Dev.to · ThaSha
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3mo ago
Multi-Level GroupBy in DataWeave: 2 Traps That Break Your Nested Aggregations
I spent 2 days building a 3-level sales report in DataWeave. Region to country to product, with...
Dev.to · ThaSha
⚡ AI Lesson
3mo ago
The DataWeave <~ Operator: How Angle Brackets in Customer Notes Broke 200 Orders
A customer typed "" in their notes field. It broke 200 XML orders and I spent 3 hours finding a...
Dev.to · ThaSha
⚡ AI Lesson
3mo ago
DataWeave 2.5 Generics: How Call-Site Type Parameters Caught 3 Production Bugs
I maintained a shared DataWeave utility library across 12 Mule apps for 2 years. Functions like topN,...
Dev.to · ThaSha
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3mo ago
DataWeave Custom Functions: The Module Trap That Wastes Hours
TL;DR Your fun declaration works inline but breaks with "Unable to resolve reference" when moved to...
Dev.to · ThaSha
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3mo ago
DataWeave XML to JSON: Handle Attributes, Namespaces, and Arrays
I built a legacy migration last year converting XML responses to JSON. The automatic conversion lost...
DeepCamp AI