{"id":19419522,"url":"https://github.com/eexit/vresolver","last_synced_at":"2025-08-17T07:03:43.736Z","repository":{"id":136625189,"uuid":"191626162","full_name":"eexit/vresolver","owner":"eexit","description":"Simple and flexible way to fetch your app 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V(ersion) Resolver [![Build Status](https://travis-ci.org/eexit/vresolver.svg?branch=master)](https://travis-ci.org/eexit/vresolver) [![codecov](https://codecov.io/gh/eexit/vresolver/branch/master/graph/badge.svg)](https://codecov.io/gh/eexit/vresolver)\n\nSimple and flexible way to fetch your app version.\n\nWether your app is a CLI or runs in background and generate logs, it's never been as easy to fetch your app version with this lib.\n\nSupported resolvers:\n\n- Environment variable\n- [AWS ECS Metadata File](https://blog.eexit.net/aws-ecs-seamlessly-handle-app-versioning/)\n- Fallback\n- Composite\n\n### Example\n\n```go\nimport \"github.com/eexit/vresolver\"\n\n// Tries to fetch the version from the runtime ECS container\n// and fallbacks to \"bulk-version\" otherwise\nversion := vresolver.Compose(\n\tvresolver.Env,\n\tvresolver.ECS,\n\tvresolver.Fallback(\"bulk-version\"),\n)(vresolver.ECSMetadataFileEnvVar)\n\n```\n\n## Installation\n\n```bash\n$ go get -u github.com/eexit/vresolver\n```\n\n## Test\n\n```bash\n$ go test -v -race ./...\n```\n\n## Custom resolver\n\nYou can build a custom resolver as long as it matches the following type:\n\n```go\ntype Resolver func(input string) string\n```\n\nFor instance, let's create a `Panic` resolver, that panics if no version is resolved:\n\n```go\n// Panic panics when app has no version\nfunc Panic(input string) string {\n\tif input == \"\" {\n\t\tpanic(\"no app version was resolved\")\n\t}\n\treturn input\n}\n\nversion := vresolver.Compose(vresolver.Env, Panic)(\"MY_APP_VERSION\")\n```\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Feexit%2Fvresolver","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Feexit%2Fvresolver","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Feexit%2Fvresolver/lists"}