Why It Matters
Postman is the standard tool for testing Salesforce REST and SOAP APIs. Whether you’re debugging a connected app OAuth flow, testing a custom Apex REST endpoint, or exploring the Salesforce REST API during solution design, Postman makes it straightforward.
Collections let you save and share API call sequences — auth flow, then SOQL query, then composite request. For architects, this is how you validate integration designs before writing a single line of Apex.
Alternatives
- Insomnia — lighter-weight API client
- cURL — command-line, no GUI
- Workbench — Salesforce-specific, built-in REST explorer