Save results as a CI artifact¶

Write a JSON results file alongside the default table output. Use it for artifact storage, dashboards, Slack notifications, or downstream parsing.

Write a JSON file¶

lmn run -H https://api.example.com/health --output-file results.json

The ASCII table is still printed to stdout. --output-file writes the machine-readable report in addition.

JSON-only output (suppress table)¶

lmn run -H https://api.example.com/health --output json

In a config file¶

run:
  host: https://api.example.com/health
  method: get
  output_file: lmn-result.json

Upload as a GitHub Actions artifact¶

- name: Run load test
  run: lmn run -f lmn.yaml --output-file lmn-result.json

- name: Upload result
  if: always()
  uses: actions/upload-artifact@v4
  with:
    name: lmn-result
    path: lmn-result.json
    retention-days: 14

Use if: always() so the artifact is uploaded even when thresholds fail — that is when you most need the report.

Upload as a GitLab CI artifact¶

load-test:
  script:
    - lmn run -f lmn.yaml --output-file lmn-result.json
  artifacts:
    when: always
    paths:
      - lmn-result.json
    expire_in: 14 days

Parse results in shell¶

lmn run -f lmn.yaml --output json | jq '.latency.p99'

See CLI Reference for all output flags.