{"id":21404769,"url":"https://github.com/fakundo/go-middleware","last_synced_at":"2025-06-26T22:35:25.292Z","repository":{"id":57570787,"uuid":"346507484","full_name":"fakundo/go-middleware","owner":"fakundo","description":"Middleware for Go event handlers","archived":false,"fork":false,"pushed_at":"2021-03-25T10:17:36.000Z","size":4,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-03-16T16:48:41.758Z","etag":null,"topics":["event-handler","golang","middleware"],"latest_commit_sha":null,"homepage":"","language":"Go","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/fakundo.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2021-03-10T22:18:49.000Z","updated_at":"2023-06-13T13:57:35.000Z","dependencies_parsed_at":"2022-09-10T22:00:13.382Z","dependency_job_id":null,"html_url":"https://github.com/fakundo/go-middleware","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/fakundo/go-middleware","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fakundo%2Fgo-middleware","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fakundo%2Fgo-middleware/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fakundo%2Fgo-middleware/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fakundo%2Fgo-middleware/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/fakundo","download_url":"https://codeload.github.com/fakundo/go-middleware/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fakundo%2Fgo-middleware/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":262151861,"owners_count":23266929,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["event-handler","golang","middleware"],"created_at":"2024-11-22T16:18:00.799Z","updated_at":"2025-06-26T22:35:25.266Z","avatar_url":"https://github.com/fakundo.png","language":"Go","readme":"\n## go-middleware\n\nMiddleware for Go functions.\n\nWorks perfectly with `socket.io` event handlers – \nhttps://github.com/googollee/go-socket.io\n\n### Installation\n\n`go get github.com/fakundo/go-middleware`\n\n### Usage\n\nCreate middleware\n\n```go\nimport (\n  middleware \"github.com/fakundo/go-middleware\"\n  socketio \"github.com/googollee/go-socket.io\"\n)\n\nvar requireAuth = middleware.Create(func(s socketio.Conn, next func()) {\n  if authorized(s) {\n    next()\n  } else {\n    s.emit(\"error\", AuthError)\n  }\n})\n```\n\nUse it\n\n```go\nimport socketio \"github.com/googollee/go-socket.io\"\n\nio, _ = socketio.NewServer(nil)\n\nio.OnEvent(\"/\", \"some-event\", requireAuth(func(s socketio.Conn) {\n  // some event handler code\n}))\n\n\nio.OnEvent(\"/\", \"another-event\", requireAuth(func(s socketio.Conn, arg string) {\n  // another event handler code\n}))\n```\n\n### Middleware composition\n\n```go\nimport middleware \"github.com/fakundo/go-middleware\"\n\n...\n\nio.OnEvent(\"/\", \"event\", middleware.Use(someMiddleware, requireAuth, func(s socketio.Conn) {\n  // event handler code\n}))\n```\n\n### About middleware behaviour\n\n- *currently* the decorated function type must be `interface` (exactly like `socket.io` event handlers)\n- the origin function and middleware can have different number of arguments, middleware will only take required arguments, and the last argument is always `next`\n- `next()` calls the origin function\n- the origin function may return something, so `next()` will return that too\n\n### License\n\nMIT\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffakundo%2Fgo-middleware","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffakundo%2Fgo-middleware","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffakundo%2Fgo-middleware/lists"}