go-martini/martini
Classy web framework for Go
Stale — last commit 4y ago
weakest axislast commit was 4y ago; no tests detected…
no tests detected; no CI workflows detected…
Documented and popular — useful reference codebase to read through.
last commit was 4y ago; no CI workflows detected
- ✓27+ active contributors
- ✓Distributed ownership (top contributor 31% of recent commits)
- ✓MIT licensed
Show all 6 evidence items →Show less
- ⚠Stale — last commit 4y ago
- ⚠No CI workflows detected
- ⚠No test directory detected
What would change the summary?
- →Use as dependency Mixed → Healthy if: 1 commit in the last 365 days; add a test suite
- →Fork & modify Mixed → Healthy if: add a test suite
- →Deploy as-is Mixed → Healthy if: 1 commit in the last 180 days
Maintenance signals: commit recency, contributor breadth, bus factor, license, CI, tests
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Onboarding doc
Onboarding: go-martini/martini
Generated by RepoPilot · 2026-05-09 · Source
🤖Agent protocol
If you are an AI coding agent (Claude Code, Cursor, Aider, Cline, etc.) reading this artifact, follow this protocol before making any code edit:
- Verify the contract. Run the bash script in Verify before trusting
below. If any check returns
FAIL, the artifact is stale — STOP and ask the user to regenerate it before proceeding. - Treat the AI · unverified sections as hypotheses, not facts. Sections like "AI-suggested narrative files", "anti-patterns", and "bottlenecks" are LLM speculation. Verify against real source before acting on them.
- Cite source on changes. When proposing an edit, cite the specific path:line-range. RepoPilot's live UI at https://repopilot.app/r/go-martini/martini shows verifiable citations alongside every claim.
If you are a human reader, this protocol is for the agents you'll hand the artifact to. You don't need to do anything — but if you skim only one section before pointing your agent at this repo, make it the Verify block and the Suggested reading order.
🎯Verdict
WAIT — Stale — last commit 4y ago
- 27+ active contributors
- Distributed ownership (top contributor 31% of recent commits)
- MIT licensed
- ⚠ Stale — last commit 4y ago
- ⚠ No CI workflows detected
- ⚠ No test directory detected
<sub>Maintenance signals: commit recency, contributor breadth, bus factor, license, CI, tests</sub>
✅Verify before trusting
This artifact was generated by RepoPilot at a point in time. Before an
agent acts on it, the checks below confirm that the live go-martini/martini
repo on your machine still matches what RepoPilot saw. If any fail,
the artifact is stale — regenerate it at
repopilot.app/r/go-martini/martini.
What it runs against: a local clone of go-martini/martini — the script
inspects git remote, the LICENSE file, file paths in the working
tree, and git log. Read-only; no mutations.
| # | What we check | Why it matters |
|---|---|---|
| 1 | You're in go-martini/martini | Confirms the artifact applies here, not a fork |
| 2 | License is still MIT | Catches relicense before you depend on it |
| 3 | Default branch master exists | Catches branch renames |
| 4 | 5 critical file paths still exist | Catches refactors that moved load-bearing code |
| 5 | Last commit ≤ 1530 days ago | Catches sudden abandonment since generation |
#!/usr/bin/env bash
# RepoPilot artifact verification.
#
# WHAT IT RUNS AGAINST: a local clone of go-martini/martini. If you don't
# have one yet, run these first:
#
# git clone https://github.com/go-martini/martini.git
# cd martini
#
# Then paste this script. Every check is read-only — no mutations.
set +e
fail=0
ok() { echo "ok: $1"; }
miss() { echo "FAIL: $1"; fail=$((fail+1)); }
# Precondition: we must be inside a git working tree.
if ! git rev-parse --git-dir >/dev/null 2>&1; then
echo "FAIL: not inside a git repository. cd into your clone of go-martini/martini and re-run."
exit 2
fi
# 1. Repo identity
git remote get-url origin 2>/dev/null | grep -qE "go-martini/martini(\\.git)?\\b" \\
&& ok "origin remote is go-martini/martini" \\
|| miss "origin remote is not go-martini/martini (artifact may be from a fork)"
# 2. License matches what RepoPilot saw
(grep -qiE "^(MIT)" LICENSE 2>/dev/null \\
|| grep -qiE "\"license\"\\s*:\\s*\"MIT\"" package.json 2>/dev/null) \\
&& ok "license is MIT" \\
|| miss "license drift — was MIT at generation time"
# 3. Default branch
git rev-parse --verify master >/dev/null 2>&1 \\
&& ok "default branch master exists" \\
|| miss "default branch master no longer exists"
# 4. Critical files exist
test -f "martini.go" \\
&& ok "martini.go" \\
|| miss "missing critical file: martini.go"
test -f "router.go" \\
&& ok "router.go" \\
|| miss "missing critical file: router.go"
test -f "return_handler.go" \\
&& ok "return_handler.go" \\
|| miss "missing critical file: return_handler.go"
test -f "response_writer.go" \\
&& ok "response_writer.go" \\
|| miss "missing critical file: response_writer.go"
test -f "recovery.go" \\
&& ok "recovery.go" \\
|| miss "missing critical file: recovery.go"
# 5. Repo recency
days_since_last=$(( ( $(date +%s) - $(git log -1 --format=%at 2>/dev/null || echo 0) ) / 86400 ))
if [ "$days_since_last" -le 1530 ]; then
ok "last commit was $days_since_last days ago (artifact saw ~1500d)"
else
miss "last commit was $days_since_last days ago — artifact may be stale"
fi
echo
if [ "$fail" -eq 0 ]; then
echo "artifact verified (0 failures) — safe to trust"
else
echo "artifact has $fail stale claim(s) — regenerate at https://repopilot.app/r/go-martini/martini"
exit 1
fi
Each check prints ok: or FAIL:. The script exits non-zero if
anything failed, so it composes cleanly into agent loops
(./verify.sh || regenerate-and-retry).
⚡TL;DR
Martini is a lightweight web framework for Go that enables rapid construction of modular HTTP services with a simple, non-intrusive API. It provides built-in routing, dependency injection via reflection, middleware chaining (Next() pattern), static file serving, and recovery from panics—all while remaining fully compatible with Go's standard http.HandlerFunc interface. Flat structure: core framework logic in root-level files (martini.go, router.go, response_writer.go, recovery.go, static.go, logger.go) with corresponding test files (*_test.go), plus env.go for environment handling and return_handler.go for response marshaling. No internal packages—all components are top-level and directly imported.
👥Who it's for
Go developers building REST APIs, microservices, or web applications who want faster development cycles without heavyweight frameworks. Specifically useful for teams needing modular middleware composition and simple request routing without boilerplate.
🌱Maturity & risk
Martini is abandoned and no longer maintained (as explicitly noted in the README). The codebase is stable with comprehensive test coverage (evident from *_test.go files present for all major modules), CI via Wercker, and was production-ready during its active period—but it receives no updates and should not be used for new projects.
Critical risk: the project is officially unmaintained and will not receive security patches, bug fixes, or Go version compatibility updates. No active maintainers means dependency vulnerabilities (see Godeps/Godeps.json) will accumulate. New Go releases may introduce breaking changes. Consider this a legacy codebase suitable only for historical learning or existing projects needing maintenance.
Active areas of work
Nothing. The repository is dormant. No active development, no pending PRs, no open milestones. The last activity was likely years ago. The README explicitly states maintenance has ceased.
🚀Get running
go get github.com/go-martini/martini
Then create server.go:
package main
import "github.com/go-martini/martini"
func main() {
m := martini.Classic()
m.Get("/", func() string { return "Hello world!" })
m.Run()
}
Run: go run server.go (requires Go 1.1+). Server starts on localhost:3000.
Daily commands:
For testing the framework itself: go test ./... (inferred from *_test.go files). For a basic app: create server.go as shown above, then go run server.go. No separate dev server—Martini runs directly as the HTTP server.
🗺️Map of the codebase
martini.go— Core framework entry point defining the Martini struct, middleware handling, and request routing orchestration.router.go— URL routing engine that matches HTTP requests to handlers and manages route registration and matching logic.return_handler.go— Implements Martini's signature feature: automatic return value handling that converts function returns into HTTP responses.response_writer.go— Wraps http.ResponseWriter to track response state (status code, written bytes) for middleware inspection.recovery.go— Panic recovery middleware that gracefully handles panics in handlers and logs them for debugging.logger.go— Request logging middleware providing HTTP request/response lifecycle visibility.static.go— Static file serving middleware enabling efficient delivery of CSS, JavaScript, and assets.
🧩Components & responsibilities
- Martini (Core Instance) (Go structs, reflection, sync.RWMutex for thread-safe Map operations) — Orchestrates middleware chain, dependency injection container, and request routing; entry point for all HTTP requests
- Failure mode: If injection container or middleware chain fails, request fails with 500; panic in middleware caught by recovery
- Router (Regex pattern matching, string parsing, slice management) — Matches incoming HTTP request URLs to registered route patterns and extracts path parameters
- Failure mode: No matching route returns 404; malformed route patterns may panic at registration time
- Return Handler (Reflection to inspect return types, type assertion) — Converts handler function return values into HTTP responses (status codes, headers, bodies)
- Failure mode: Unsupported return type causes panic or falls through to default behavior
- Response Writer Wrapper (io.Writer wrapping, http.ResponseWriter interface implementation) — Intercepts and tracks HTTP response writes to allow middleware to inspect/modify status and headers
- Failure mode: If headers already written, further attempts to set status code are silently ignored by http package
- Logger & Recovery Middleware (fmt, log, reflect, runtime.Stack() for panic capture) — Provide request/response logging and panic recovery with stack traces for observability and graceful error handling
- Failure mode: Log writer failure does not crash handler; recovery middleware prevents server crashes but logs to stderr
🔀Data flow
HTTP Client→Martini.ServeHTTP— Raw HTTP request arrives from listener socketMartini.ServeHTTP→Middleware chain (logger, recovery)— Request flows through registered middleware in order for logging and panic handling setupMiddleware→Router.Match— Request URL and method forwarded to router for pattern matchingRouter.Match→Handler function— Route matched; parameters injected via dependency container and handler executedHandler function→Return Handler— Handler returns value(s) and/or writes directly to ResponseWriterReturn Handler→ResponseWriter— Return values converted to HTTP status code and body; written to ResponseWriter wrapperResponseWriter→HTTP Client— Status, headers, and body flushed to client connectionRecovery Middleware→ResponseWriter (fallback)— If panic occurs, recovery middleware catches it, logs stack trace, and writes 500 response
🛠️How to make changes
Add a new HTTP route
- Open martini.go and use the m.Get(), m.Post(), m.Put(), m.Delete() methods to register a handler (
martini.go) - Define a handler function that returns (string, int) or accepts injected http.ResponseWriter parameters (
martini.go) - Router will automatically match incoming requests to your handler via router.go pattern matching (
router.go)
Add custom middleware
- Define a middleware function that accepts *http.Request or http.ResponseWriter as parameters (
martini.go) - Register it via m.Use() in your application setup to execute it for all requests (
martini.go) - Middleware runs in order; use response_writer.go to check if response was already written (
response_writer.go)
Implement dependency injection
- Define a type you want injected (e.g., a database connection or config struct) (
martini.go) - Call m.Map(instance) to register it in the container before defining routes (
martini.go) - Add the type as a parameter in any handler function; Martini will auto-inject it (
martini.go)
Serve static files
- Call m.Use(martini.Static("public")) in your main setup to serve a directory (
static.go) - Place CSS, JS, and images in the public/ directory (or your chosen path) (
static.go) - Static middleware will intercept matching requests and return files with proper caching headers (
static.go)
🔧Why these technologies
- Go interfaces & reflection — Enable automatic dependency injection and type-safe handler invocation without boilerplate registration
- net/http standard library — Leverage Go's native HTTP primitives rather than reimplementing; minimal external dependencies
- Middleware chain pattern — Provide composable request/response hooks (logging, recovery, static files) without coupling to core router
⚖️Trade-offs already made
-
Automatic return value handling instead of explicit response writing
- Why: Reduces boilerplate and allows handlers to be pure functions
- Consequence: Less explicit control over response details; developer must understand return type conventions
-
Reflection-based dependency injection
- Why: Enables type-safe, zero-configuration injection of dependencies into handler signatures
- Consequence: Minor runtime overhead on each request; less transparent than explicit function parameters
-
Single-threaded request processing per goroutine
- Why: Simplifies middleware ordering and state management within a single request lifetime
- Consequence: No per-request parallelization; all middleware and handlers execute sequentially
🚫Non-goals (don't propose these)
- Built-in authentication or authorization (users must add custom middleware)
- ORM or database abstraction (requires external packages or custom injection)
- WebSocket support (HTTP-only framework, though users can layer WebSocket elsewhere)
- Template rendering (no built-in HTML templating; users integrate html/template or third-party engines)
- Form parsing (relies on standard net/http; users extend with middleware)
- Active maintenance (framework is officially unmaintained as of latest README)
⚠️Anti-patterns to avoid
- Opaque reflection-based injection (Medium) —
martini.go (dependency injection via Map and type inference): Developers cannot easily trace which types are injected into handlers; static analysis tools cannot determine dependencies. Injection failures only discovered at runtime. - Silent type assertion failures (Medium) —
return_handler.go (return value type switching): If a handler returns an unexpected type, the framework may silently ignore it or panic; no compile-time type checking. - Global middleware ordering dependency (Low) —
martini.go (middleware slice iteration): Middleware execution order is strictly sequential and order-dependent (e.g., logger before recovery). Developers must remember correct registration sequence; no documentation at call site. - undefined: undefined
🪤Traps & gotchas
(1) Reflection-based injection: Handlers must use exact type names for dependency injection (e.g., *http.Request, martini.Context) or parameters won't be injected—debugging this is non-obvious. (2) No built-in HTTPS: martini.Run() only binds HTTP; for HTTPS you must manually configure tls.ListenAndServe(). (3) Godeps dependency management: Uses old Godeps system (see Godeps/Godeps.json)—modern Go modules weren't available when this was active. (4) Next() in middleware: Calling Next() is optional but order matters; middleware registered later wraps earlier ones, creating a stack. (5) Go version: Requires Go 1.1+, but modern Go (1.18+) may have compatibility issues with reflection patterns—untested.
🏗️Architecture
💡Concepts to learn
- Dependency Injection via Reflection — Martini's core innovation—handlers declare parameters by type and the framework auto-injects them (http.Request, ResponseWriter, custom services). Understanding martini.go's Context.invoke() is essential to using the framework.
- Middleware Chaining with Next() — Handlers are composable via Next() calls, creating a stack-like execution model. Mastering this in recovery.go and logger.go examples is critical for building reliable request pipelines.
- ResponseWriter Wrapping — response_writer.go wraps http.ResponseWriter to track status/size before data is sent. This pattern enables post-hoc inspection needed for logging and recovery—foundational middleware technique.
- Panic Recovery in Goroutines — recovery.go demonstrates safe panic catching in HTTP handlers. Go's defer + recover pattern is non-obvious when used in middleware; understanding this prevents silent crashes in production.
- Router Path Templating — router.go implements URL pattern matching (e.g., /user/:id) with parameter extraction. Knowing how patterns compile and match is essential for building complex REST APIs.
- Static File Serving with Default Documents — static.go serves files but also enables single-page app routing (returning index.html for missing paths). This pattern is crucial for modern JS frameworks (React, Angular) running on Martini.
- Environment-Driven Configuration — env.go (Development/Production/Test modes) shows how to toggle middleware based on runtime context. This pattern is important for managing logs verbosity and security features across deployment stages.
🔗Related repos
gin-gonic/gin— Modern successor to Martini pattern; faster routing via radix trees, similar middleware chaining but with better performance—recommended alternative for new Go projectsgorilla/mux— Alternative router focused solely on routing; no dependency injection, often paired with other middleware packages in Go ecosystemmartini-contrib/binding— Official companion middleware repo (now unmaintained) providing request body unmarshaling and validation—extends Martini's core functionalitymartini-contrib/render— Official companion middleware for template rendering and JSON response marshaling—shows how to build plugins for Martinicodegangsta/cli— Related project by same author; demonstrates Go CLI patterns that complement Martini for service tooling
🪄PR ideas
To work on one of these in Claude Code or Cursor, paste:
Implement the "<title>" PR idea from CLAUDE.md, working through the checklist as the task list.
Add comprehensive integration tests for static file serving with edge cases
The static.go file handles static file serving but static_test.go likely lacks coverage for edge cases like directory traversal attempts, symlinks, missing files with custom error handlers, and cache header behavior. This is a high-value security and reliability concern for a web framework.
- [ ] Review static_test.go to identify missing test cases (directory traversal, symlinks, MIME types, 304 Not Modified responses)
- [ ] Add tests for malicious path patterns like '../../../etc/passwd'
- [ ] Add tests for conditional requests (If-Modified-Since, ETag handling)
- [ ] Add tests for concurrent static file requests
- [ ] Update static.go if edge cases reveal bugs
Migrate from Godeps to go.mod and set up GitHub Actions CI
The repo uses legacy Godeps dependency management (see Godeps/Godeps.json) and wercker.yml for CI. Modern Go projects use go.mod, and wercker is deprecated. Migrating to go.mod and adding GitHub Actions (e.g., test matrix for Go 1.18+) would improve maintainability and reliability for future contributors, especially since the README notes the framework is no longer maintained.
- [ ] Create go.mod from Godeps/Godeps.json using 'go mod init' and 'go mod tidy'
- [ ] Remove Godeps/ directory and wercker.yml
- [ ] Create .github/workflows/test.yml with matrix testing for Go 1.18, 1.19, 1.20+
- [ ] Verify all tests pass with 'go test ./...'
- [ ] Update README.md to reference GitHub Actions status badge instead of wercker
Add missing documentation and examples for recovery.go panic handling behavior
The recovery.go file provides panic recovery middleware (evident from recovery_test.go), but the main README lacks documentation on how to use it, customize error responses, or integrate it with the logger. This is critical functionality that new users need to understand.
- [ ] Review recovery.go and recovery_test.go to understand the panic recovery mechanism and error formatting
- [ ] Add a 'Panic Recovery' section to README.md with code examples showing default behavior
- [ ] Document how to customize recovery responses (e.g., JSON vs HTML error output)
- [ ] Document interaction with logger.go (how panics are logged)
- [ ] Add examples showing recovery middleware integration in a typical martini.Classic() setup
🌿Good first issues
- Add comprehensive middleware examples to README: Create a documented handler showing all Context injection patterns (e.g., injecting *http.Request, http.ResponseWriter, custom services). Currently martini.go has Context struct but no worked example in root README.
- Extend static.go test coverage: static_test.go exists but likely lacks tests for edge cases (empty directories, symlinks, permission errors, 304 Not Modified for caching). Add tests and fix any bugs found.
- Document the dependency injection system in CONTRIBUTING or docs: Write a guide explaining how reflection-based parameter injection works in martini.go (Context.invoke). Many contributors struggle with this non-obvious pattern.
⭐Top contributors
Click to expand
Top contributors
📝Recent commits
Click to expand
Recent commits
22fa469— Merge pull request #408 from korolr/patch-1 (Miguel Molina)d14d8e0— Update README_ru_RU.md (korolr)fe605b5— Fix typo in german translation (#399) (Henning Vogt)c257c41— Properly support closenotifier (#398) (umcodemonkey)0c6ad59— Update README.md (Miguel Molina)b174c4f— Merge pull request #375 from rvu95/patch-1 (Miguel Molina)65ad2ee— Merge pull request #379 from orthographic-pedant/spell_check/compatible (Miguel Molina)777b15c— Merge pull request #382 from joseluisq/master (Miguel Molina)493e81a— Merge pull request #388 from avelino/patch-1 (Miguel Molina)168ae7f— Merge pull request #394 from ikrauchanka/patch-1 (Miguel Molina)
🔒Security observations
The Martini framework presents significant security risks due to being unmaintained. The codebase likely contains unpatched vulnerabilities in routing, static file handling, and middleware implementation. Security concerns include potential path traversal, injection attacks, missing security headers, and information disclosure through error messages. The framework should not be used for new projects or sensitive applications. Existing implementations should be prioritized for migration to maintained alternatives such as Gin, Echo, or Chi, with additional security hardening in the interim.
- High · Unmaintained Framework —
README.md, martini.go. The Martini framework is explicitly marked as no longer maintained in the README. This means security vulnerabilities discovered in the framework will not receive patches or updates, creating a persistent security risk for any applications built with it. Fix: Migrate to an actively maintained Go web framework such as Gin, Echo, or Chi. If migration is not immediately possible, implement additional security layers and conduct regular security audits. - High · Potential Unvalidated Input in Router —
router.go. The router.go file likely contains path matching and parameter extraction logic. Without seeing the implementation details, unmaintained routers frequently have path traversal or injection vulnerabilities through route parameters. Fix: Review router parameter handling for proper validation and sanitization. Implement strict input validation for all route parameters. Consider using parameterized routing with type constraints. - Medium · Static File Serving Risk —
static.go. The static.go file handles static file serving. Unmaintained code in this area may be vulnerable to path traversal attacks (e.g., '../../../etc/passwd') if not properly validated. Fix: Ensure all file path requests are validated and canonicalized. Implement a whitelist of allowed directories. Use filepath.Clean() and verify resolved paths remain within intended directories. - Medium · Recovery Mechanism Implementation —
recovery.go. The recovery.go module handles panic recovery. If improperly implemented, it may expose sensitive stack traces or internal details in error messages visible to clients. Fix: Ensure recovery handlers do not expose sensitive information in production. Log detailed errors server-side only. Return generic error messages to clients. Implement proper error response sanitization. - Medium · Missing Security Headers —
martini.go, middleware. No evidence of security header middleware (Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Strict-Transport-Security) in the file structure. This leaves applications vulnerable to common web attacks. Fix: Implement security header middleware that sets appropriate headers for all responses. Include CSP, HSTS, X-Frame-Options, X-Content-Type-Options, and X-XSS-Protection headers. - Low · Dependency Management —
Godeps/Godeps.json. The Godeps directory indicates use of an older Go dependency management tool (Godeps). Modern Go uses go.mod which provides better dependency tracking and vulnerability scanning. Fix: Migrate to go.mod/go.sum for dependency management. Use 'go mod init' to convert the project. This enables automatic vulnerability detection with 'go list -m all'.
LLM-derived; treat as a starting point, not a security audit.
👉Where to read next
- Open issues — current backlog
- Recent PRs — what's actively shipping
- Source on GitHub
Generated by RepoPilot. Verdict based on maintenance signals — see the live page for receipts. Re-run on a new commit to refresh.