{"id":21397331,"url":"https://github.com/silviucpp/erlcard","last_synced_at":"2025-04-16T01:11:18.230Z","repository":{"id":86640010,"uuid":"89580870","full_name":"silviucpp/erlcard","owner":"silviucpp","description":"Erlang credit card validation library","archived":false,"fork":false,"pushed_at":"2025-03-01T21:32:15.000Z","size":16,"stargazers_count":3,"open_issues_count":0,"forks_count":2,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-03-29T03:21:24.763Z","etag":null,"topics":["card","cvc","erlang","luhn","validation"],"latest_commit_sha":null,"homepage":null,"language":"Erlang","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/silviucpp.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,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2017-04-27T09:32:47.000Z","updated_at":"2025-03-01T21:32:19.000Z","dependencies_parsed_at":null,"dependency_job_id":"29521fa9-d4de-4ce3-a1d6-6a411154224b","html_url":"https://github.com/silviucpp/erlcard","commit_stats":null,"previous_names":[],"tags_count":3,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/silviucpp%2Ferlcard","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/silviucpp%2Ferlcard/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/silviucpp%2Ferlcard/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/silviucpp%2Ferlcard/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/silviucpp","download_url":"https://codeload.github.com/silviucpp/erlcard/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":249178209,"owners_count":21225349,"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":["card","cvc","erlang","luhn","validation"],"created_at":"2024-11-22T14:41:42.682Z","updated_at":"2025-04-16T01:11:18.224Z","avatar_url":"https://github.com/silviucpp.png","language":"Erlang","funding_links":[],"categories":[],"sub_categories":[],"readme":"# erlcard\n\n[![Build Status](https://app.travis-ci.com/silviucpp/erlcard.svg?branch=master)](https://travis-ci.com/github/silviucpp/erlcard)\n![GitHub License](https://img.shields.io/github/license/silviucpp/erlcard)\n![Hex.pm Version](https://img.shields.io/hexpm/v/erlcard)\n\n`erlcard` is an Erlang library that validates popular debit and credit card numbers against regular expressions and the [Luhn algorithm][1]. It also supports validation of the CVC code.\n\n## Installation\n\nTo add `erlcard` as a dependency in your `rebar3` project, include the following in your `rebar.config`:\n\n```erlang\n{deps, [\n  {erlcard, \".*\", {git, \"https://github.com/silviucpp/erlcard.git\", \"master\"}}\n]}.\n```\n\n## Usage\n\nAll available card types are defined in `erlcard.hrl`:\n\n```erlang\n-define(CARD_TYPE_AMEX, amex).\n-define(CARD_TYPE_DANKORT, dankort).\n-define(CARD_TYPE_DINERSCLUB, dinersclub).\n-define(CARD_TYPE_DISCOVER, discover).\n-define(CARD_TYPE_FORBRUGSFORENINGEN, forbrugsforeningen).\n-define(CARD_TYPE_JCB, jcb).\n-define(CARD_TYPE_MAESTRO, maestro).\n-define(CARD_TYPE_MASTERCARD, mastercard).\n-define(CARD_TYPE_UNIONPAY, unionpay).\n-define(CARD_TYPE_VISA, visa).\n-define(CARD_TYPE_VISAELECTRON, visaelectron).\n```\n\n### Validating Card Numbers\n\n#### When the Card Type is Known\n\n```erlang\n{ok, \u003c\u003c\"5500005555555559\"\u003e\u003e, mastercard} = erlcard:valid_credit_card(\u003c\u003c\"5500005555555559\"\u003e\u003e, mastercard).\n```\n\n#### When the Card Type is Unknown\n\n```erlang\n{ok, \u003c\u003c\"5500005555555559\"\u003e\u003e, mastercard} = erlcard:valid_credit_card(\u003c\u003c\"5500005555555559\"\u003e\u003e).\n```\n\n### Validating CVC Codes\n\n```erlang\ntrue = erlcard:valid_cvc(\u003c\u003c\"123\"\u003e\u003e, visa).\n```\n\n## Running Tests\n\nTo execute the test suite, run the following command from the project's root directory:\n\n```sh\nmake ct\n```\n\n[1]: https://en.wikipedia.org/wiki/Luhn_algorithm\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsilviucpp%2Ferlcard","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsilviucpp%2Ferlcard","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsilviucpp%2Ferlcard/lists"}