{"id":23613695,"url":"https://github.com/freckle/amazonka-mtl","last_synced_at":"2025-11-06T09:30:34.503Z","repository":{"id":194402694,"uuid":"690613908","full_name":"freckle/amazonka-mtl","owner":"freckle","description":null,"archived":false,"fork":false,"pushed_at":"2023-10-24T19:26:05.000Z","size":34,"stargazers_count":1,"open_issues_count":1,"forks_count":0,"subscribers_count":8,"default_branch":"main","last_synced_at":"2024-04-25T22:30:37.162Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Haskell","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/freckle.png","metadata":{"files":{"readme":"README.lhs","changelog":"CHANGELOG.md","contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2023-09-12T14:27:39.000Z","updated_at":"2023-11-02T16:39:08.000Z","dependencies_parsed_at":null,"dependency_job_id":"46004aa2-6241-4c72-a29e-1fa6317e267d","html_url":"https://github.com/freckle/amazonka-mtl","commit_stats":null,"previous_names":["freckle/amazonka-mtl"],"tags_count":2,"template":false,"template_full_name":"freckle/haskell-library-template","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/freckle%2Famazonka-mtl","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/freckle%2Famazonka-mtl/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/freckle%2Famazonka-mtl/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/freckle%2Famazonka-mtl/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/freckle","download_url":"https://codeload.github.com/freckle/amazonka-mtl/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":239491352,"owners_count":19647811,"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":[],"created_at":"2024-12-27T17:18:48.319Z","updated_at":"2025-11-06T09:30:34.446Z","avatar_url":"https://github.com/freckle.png","language":"Haskell","funding_links":[],"categories":[],"sub_categories":[],"readme":"# amazonka-mtl\n\n[![Hackage](https://img.shields.io/hackage/v/amazonka-mtl.svg?style=flat)](https://hackage.haskell.org/package/amazonka-mtl)\n[![Stackage Nightly](http://stackage.org/package/amazonka-mtl/badge/nightly)](http://stackage.org/nightly/package/amazonka-mtl)\n[![Stackage LTS](http://stackage.org/package/amazonka-mtl/badge/lts)](http://stackage.org/lts/package/amazonka-mtl)\n[![CI](https://github.com/freckle/amazonka-mtl/actions/workflows/ci.yml/badge.svg)](https://github.com/freckle/amazonka-mtl/actions/workflows/ci.yml)\n\nMTL-style type-class and deriving-via newtypes for Amazonka.\n\n## Example\n\nThis package allows incorporation of AWS actions into any MTL-style function,\n\n\u003c!--\n```haskell\n{-# OPTIONS_GHC -Wno-unused-top-binds #-}\n\nmodule Main (main) where\n\nimport Prelude\n\nimport Amazonka.S3 (BucketName)\nimport Control.Monad.Reader (MonadReader)\nimport Text.Markdown.Unlit ()\n```\n--\u003e\n\n```haskell\nimport Amazonka.Data.Text (ToText(..))\nimport Amazonka.S3.ListObjects\nimport Amazonka.S3.Types.Object\nimport Blammo.Logging\nimport Conduit\nimport Control.Lens hiding ((.=))\nimport Control.Monad.AWS as AWS\n```\n\n\u003c!--\n```haskell\ndata Settings = Settings\n  { settingsBucketName :: BucketName\n  }\n\nclass HasSettings env where\n  settingsL :: Lens' env Settings\n\ninstance HasSettings Settings where\n  settingsL = id\n```\n--\u003e\n\n```haskell\nsomeAction\n  :: ( MonadIO m\n     , MonadLogger m\n     , MonadAWS m\n     , MonadReader env m\n     , HasSettings env\n     )\n  =\u003e m ()\nsomeAction = do\n  Settings {..} \u003c- view settingsL\n\n  keys \u003c-\n    runConduit\n      $ paginate (newListObjects settingsBucketName)\n      .| concatMapC (^. listObjectsResponse_contents)\n      .| concatC\n      .| mapC (^. object_key . to toText)\n      .| iterMC (\\k -\u003e logDebug $ k :# [])\n      .| sinkList\n\n  logInfo $ \"Bucket contents\" :# [\"keys\" .= keys]\n```\n\n\u003c!--\n```haskell\nmain :: IO ()\nmain = pure ()\n```\n--\u003e\n\nThis package also provides a number of options for execution:\n\n- Through a concrete transformer: `Control.Monad.AWS.EnvT`\n- Through your own reader env and deriving-via: `Control.Monad.AWS.ViaReader`\n\nThis package also provides mechanisms for mocking AWS in tests:\n\n- Through a concrete transformer: `Control.Monad.AWS.MockT`\n- Through your own reader env and deriving-via: `Control.Monad.AWS.ViaMock`\n\nPlease see the [documentation on hackage][hackage] for all the details.\n\n[hackage]: https://hackage.haskell.org/package/amazonka-mtl\n\n## Development \u0026 Tests\n\n```console\nstack build --fast --pedantic --test --file-watch\n```\n\n---\n\n[CHANGELOG](./CHANGELOG.md) | [LICENSE](./LICENSE)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffreckle%2Famazonka-mtl","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffreckle%2Famazonka-mtl","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffreckle%2Famazonka-mtl/lists"}