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# 100 APIs, 1000 Headaches: Overcoming Data Transformation Challenges in API Integration


- **Event:** Conference India 2026

## Description

As the system architecture become increasingly dependant on external and internal APIs, data transformation can quickly become a nightmare. Transforming the data for one system to the another becomes complex and hard to maintain. This talk dives into the challenges I faced managing over 100+ API integrations, where traditional JavaScript approaches led to a tangled web of complex, error-prone code. I'll explore what were the challenges of such API integrations at scale and how the development of a custom domain-specific language (DSL) for JSON transformation solved those challenges. How this solution dramatically simplified our codebase, improved maintainability, and boosted performance. As the JSON templating language I created is Open Source, anyone can use or fork this language to solve their own data transformation challenges. After this talk, you'll leave with more confidence with the knowledge of a new approach to bring order to API integration chaos

## Speaker

### [Pradeep Sharma](https://www.wearedevelopers.com/@pradeep-sharma)

Developer Relations Specialist


## Related talks at this congress

- [How We Cut Our API's p99 Latency from Minutes to Under a Second](https://www.wearedevelopers.com/events/conference-india-2026/sessions/1987-how-we-cut-our-api-s) — Deepak Agrawal
- [The 200,000 line code repository: My AI wrote 1000 lines. I needed 100.](https://www.wearedevelopers.com/events/conference-india-2026/sessions/2035-the-200-000-line) — Hardik Gupta
- [AI at the Door, Turning ‘Tech Debt Panic’ into ‘Tech Debt Repairs’](https://www.wearedevelopers.com/events/conference-india-2026/sessions/2043-ai-at-the-door) — Prerit Munjal
- [IAM as a Platform Service](https://www.wearedevelopers.com/events/conference-india-2026/sessions/2052-iam-as-a-platform) — Ramesh Babu K M

## Watch remotely

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## Links

- [Get tickets](https://www.wearedevelopers.com/conference-india/tickets)