Last reviewed against v0.9.0 source: internal/tools/http_runner.go, frontend/src/components/Tools/HTTPClient/RunCollectionModal.tsx

Collection runner

Run a collection or folder with N iterations against an environment. Sequential or parallel mode. JSON or HTML report.

Run a whole collection (or a folder within one) with N iterations against a chosen environment.

Behavior

Each iteration runs every request in sequential order, or in parallel with a configurable concurrency cap.
Pre-request and post-response scripts fire per request in both modes.
Test assertions roll up into the run report.
A global stop on first fail flag short-circuits.

The runner exports as JSON or HTML. Pick the format from the modal footer when the run completes.