Postman for API Fundamentals Training in Marina Bay, Singapore

This course is designed to help non-technical professionals—particularly from Business, Customer Success, Operations, Product, and FinTech domains—develop a clear and practical understanding of APIs using Postman.

The training focuses on core API fundamentals, hands-on usage of Postman, and real-world troubleshooting techniques, enabling participants to confidently analyze API behavior, validate responses, and collaborate effectively with engineering teams.
The course intentionally avoids deep programming, heavy automation, or CI/CD ownership, making it ideal for professionals who work with APIs rather than build them.

API Foundations & Hands-On Basics

API Concepts for Business & FinTech Professionals

• What APIs are and why they matter in fintech products
• Real-world examples: payments, KYC, wallets, transactions
• REST APIs explained without code
• API lifecycle from a business perspective
• Common API terminology (endpoint, method, payload, headers)

Hands-on

Getting Started with Postman Interface

• Postman workspace overview
• Collections, requests, history
• Understanding GET, POST, PUT, DELETE in business terms
• Sending your first API request

Hands-on

Requests & Responses Deep Dive

• URL structure, query parameters, path variables
• Headers vs Body (explained visually)
• Understanding HTTP status codes (200, 400, 401, 403, 500)
• Reading and interpreting JSON responses
• Identifying business-impacting API errors

Hands-on

Authentication & Authorization

• Why authentication is critical in fintech APIs
• API Keys, Bearer Tokens, OAuth (conceptual, not coding)
• How auth failures look in Postman
• Token expiry and common auth issues

Hands-on

Environments, Troubleshooting & Real-World Usage

Environments & Variables

• What environments are (dev, staging, prod)
• Variables explained simply
• Switching environments safely
• Avoiding production mistakes

Hands-on

Practical API Troubleshooting Techniques

• Debugging failed API calls
• Identifying whether the issue is:
• Request-related
• Authentication-related
• Data-related
• Backend/system-related
• How to capture evidence for engineering teams
• Best practices for raising API issues internally

Hands-on

Working with Real Business Use Cases

• Payments API walkthrough
• Customer onboarding / KYC API example
• Transaction status & reconciliation APIs
• Pagination, filtering, and search APIs

Hands-on

• Execute real-world API flows end-to-end
• Validate data accuracy for business use

Intro to Tests & Scripts (Awareness Only)

• What Postman tests are (high-level)
• Reading existing tests (not writing complex code)
• When automation is useful vs not needed
• Understanding what engineering teams automate

Hands-on

Collaboration, Reporting & Best Practices

• Sharing collections with teams
• Exporting API call evidence
• Using Postman for cross-team communication
• Best practices for non-technical stakeholders