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openfeature

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The Gleam SDK for the OpenFeature specification.

Retired package: Deprecated
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openfeature src api.erl
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src/api.erl 

-module(api).

-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).



-export([set_provider/1, get_provider_metadata/0, set_context/1, set_domain_provider/2, get_domain_provider_metadata/1]).

-export_type([api/0]).



-opaque api() :: {api,

        gleam@option:option(provider:feature_provider()),

        evaluation_context:evaluation_context()}.



-spec default_api() -> api().

default_api() ->

    {api, none, {evaluation_context, none, gleam@dict:new()}}.



-spec set_provider(provider:feature_provider()) -> {ok, nil} | {error, nil}.

set_provider(Provider) ->

    Api = persistent_term:get(<<"openfeature_api"/utf8>>, default_api()),

    New_api = {api, {some, Provider}, erlang:element(3, Api)},

    persistent_term:put(<<"openfeature_api"/utf8>>, New_api),

    (erlang:element(2, Provider))(erlang:element(3, Api)).



-spec get_provider_metadata() -> gleam@option:option(metadata:metadata()).

get_provider_metadata() ->

    _pipe = erlang:element(

        2,

        persistent_term:get(<<"openfeature_api"/utf8>>, default_api())

    ),

    gleam@option:map(

        _pipe,

        fun(Provider) -> (erlang:element(4, Provider))() end

    ).



-spec set_context(evaluation_context:evaluation_context()) -> nil.

set_context(Context) ->

    Api = persistent_term:get(<<"openfeature_api"/utf8>>, default_api()),

    New_api = {api, erlang:element(2, Api), Context},

    persistent_term:put(<<"openfeature_api"/utf8>>, New_api).



-spec set_domain_provider(binary(), provider:feature_provider()) -> nil.

set_domain_provider(Domain, Provider) ->

    persistent_term:put(<<"domain_provider__"/utf8, Domain/binary>>, Provider).



-spec get_domain_provider_metadata(binary()) -> gleam@option:option(metadata:metadata()).

get_domain_provider_metadata(Domain) ->

    _pipe = persistent_term:get(

        <<"domain_provider__"/utf8, Domain/binary>>,

        none

    ),

    gleam@option:map(

        _pipe,

        fun(Provider) -> (erlang:element(4, Provider))() end

    ).