{"id":47674118,"url":"https://github.com/talek-solutions/lmn","last_synced_at":"2026-04-07T06:02:20.895Z","repository":{"id":345932768,"uuid":"1173830252","full_name":"talek-solutions/lmn","owner":"talek-solutions","description":" Fast HTTP load testing CLI written in Rust — dynamic request templates, threshold-gated CI exits, and configurable load 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align=\"center\"\u003eLumen\u003c/h1\u003e\n\n\u003cp align=\"center\"\u003e\n  Fast HTTP load testing CLI — dynamic templates, threshold-gated CI, and load curves.\n\u003c/p\u003e\n\n\u003cp align=\"center\"\u003e\n  \u003ca href=\"https://github.com/talek-solutions/lmn/actions/workflows/ci.yml\"\u003e\u003cimg src=\"https://github.com/talek-solutions/lmn/actions/workflows/ci.yml/badge.svg\" alt=\"CI\" /\u003e\u003c/a\u003e\n  \u003ca href=\"https://crates.io/crates/lmn\"\u003e\u003cimg src=\"https://img.shields.io/crates/v/lmn.svg\" alt=\"crates.io\" /\u003e\u003c/a\u003e\n  \u003ca href=\"LICENSE\"\u003e\u003cimg src=\"https://img.shields.io/badge/license-Apache--2.0-blue.svg\" alt=\"License\" /\u003e\u003c/a\u003e\n  \u003ca href=\"https://lmn.talek.cloud/\"\u003e\u003cimg src=\"https://img.shields.io/badge/docs-online-blue.svg\" alt=\"Docs\" /\u003e\u003c/a\u003e\n\u003c/p\u003e\n\n\u003e Full documentation at [lmn.talek.cloud](https://lmn.talek.cloud/)\n\n---\n\n## Why Lumen\n\nMost load testers answer \"how fast is my API?\" Lumen also answers \"did this release break performance?\" — by letting you define pass/fail thresholds and wiring the exit code into CI.\n\n```bash\nlmn run -H https://api.example.com/orders \\\n  --header \"Authorization: Bearer ${API_TOKEN}\" \\\n  -f lmn.yaml\n# exits 0 if thresholds pass, 2 if they fail\n```\n\n```yaml\n# lmn.yaml\nexecution:\n  request_count: 1000\n  concurrency: 50\n\nthresholds:\n  - metric: error_rate\n    operator: lt\n    value: 0.01        # \u003c 1% errors\n  - metric: latency_p99\n    operator: lt\n    value: 500.0       # p99 \u003c 500ms\n```\n\n---\n\n## Installation\n\n```bash\ncargo install lmn\n```\n\n**Docker (zero-install):**\n\n```bash\ndocker run --rm ghcr.io/talek-solutions/lmn:latest run -H http://host.docker.internal:3000/api\n```\n\nHomebrew and pre-built binaries: see [Installation docs](https://lmn.talek.cloud/getting-started/installation/).\n\n---\n\n## Quick Start\n\n```bash\n# 100 GET requests, see latency table\nlmn run -H https://httpbin.org/get\n\n# POST with an inline JSON body\nlmn run -H https://httpbin.org/post -M post -B '{\"name\":\"alice\"}'\n\n# Run from a YAML config file\nlmn run -f lmn.yaml\n```\n\nSee the [Quickstart guide](https://lmn.talek.cloud/getting-started/quickstart/) for a full walkthrough.\n\n---\n\n## Features\n\n- **[Dynamic request bodies](https://lmn.talek.cloud/guides/request-bodies/)** — per-request random data from typed JSON templates\n- **[Threshold-gated CI](https://lmn.talek.cloud/guides/thresholds-ci/)** — exit code `2` on p99/error-rate/throughput failures; wires into any pipeline\n- **[Load curves](https://lmn.talek.cloud/guides/load-curves/)** — staged virtual user ramp-up with linear or step profiles\n- **[Auth \u0026 headers](https://lmn.talek.cloud/guides/headers-auth/)** — `${ENV_VAR}` secret injection, `.env` auto-load, repeatable headers\n- **[Response tracking](https://lmn.talek.cloud/recipes/response-template/)** — extract and aggregate fields from response bodies (e.g. API error codes)\n- **[JSON output](https://lmn.talek.cloud/reference/json-output/)** — machine-readable report for dashboards and CI artifacts\n- **Config files** — full YAML config with CLI flag precedence\n\n---\n\n## Observability\n\nStream traces to any OpenTelemetry-compatible backend:\n\n```bash\nexport OTEL_EXPORTER_OTLP_ENDPOINT=http://my-collector:4318\nlmn run -H https://api.example.com\n```\n\nStart a local Tempo + Grafana stack from `lmn-cli/`:\n\n```bash\ndocker compose up -d\n# Grafana at http://localhost:3000 → Explore → Tempo\n```\n\n---\n\n## Reference\n\n- [CLI reference](https://lmn.talek.cloud/reference/cli/) — full flag and config reference\n- [Template placeholders](https://lmn.talek.cloud/reference/template-placeholders/) — request and response template reference\n- [JSON output schema](https://lmn.talek.cloud/reference/json-output/) — machine-readable report structure\n\n---\n\n## Project Structure\n\n```\nlmn/\n├── lmn-core/     # engine, templates, HTTP, thresholds (library crate)\n└── lmn-cli/      # CLI entry point, OTel setup (binary crate)\n```\n\n```bash\ncargo build\ncargo test\n```\n\n---\n\n## License\n\nApache-2.0 — see [LICENSE](LICENSE).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftalek-solutions%2Flmn","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftalek-solutions%2Flmn","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftalek-solutions%2Flmn/lists"}