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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 openfeature@api.erl
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src/openfeature@api.erl 

-module(openfeature@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, get_domain_client/1, get_client/0]).

-export_type([api/0]).



-type api() :: {api,

        openfeature@provider:feature_provider(),

        openfeature@evaluation_context:evaluation_context()}.



-spec default_api() -> api().

default_api() ->

    {api,

        openfeature@providers@no_op:provider(),

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



-spec set_provider(openfeature@provider:feature_provider()) -> {ok, nil} |

    {error, nil}.

set_provider(Provider) ->

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

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

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

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



-spec get_provider() -> openfeature@provider:feature_provider().

get_provider() ->

    erlang:element(

        2,

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

    ).



-spec get_provider_metadata() -> openfeature@provider:metadata().

get_provider_metadata() ->

    (erlang:element(

        4,

        erlang:element(

            2,

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

        )

    ))().



-spec set_context(openfeature@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(), openfeature@provider:feature_provider()) -> nil.

set_domain_provider(Domain, Provider) ->

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



-spec get_domain_provider(binary()) -> openfeature@provider:feature_provider().

get_domain_provider(Domain) ->

    persistent_term:get(

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

        get_provider()

    ).



-spec get_domain_provider_metadata(binary()) -> openfeature@provider:metadata().

get_domain_provider_metadata(Domain) ->

    (erlang:element(

        4,

        persistent_term:get(

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

            get_provider()

        )

    ))().



-spec get_domain_client(binary()) -> openfeature@client:client().

get_domain_client(Domain) ->

    {client, get_domain_provider(Domain), {client_metadata, Domain}}.



-spec get_client() -> openfeature@client:client().

get_client() ->

    {client, get_provider(), {client_metadata, <<""/utf8>>}}.