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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([get_provider_metadata/0, get_client/0, set_provider/1, set_context/1, set_domain_provider/2, get_domain_provider_metadata/1, get_domain_client/1]).

-export_type([api/0]).



-type api() :: {api,

        openfeature@provider:feature_provider(),

        openfeature@evaluation_context:evaluation_context()}.



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

get_provider() ->

    persistent_term:get(

        <<"global_openfeature_provider"/utf8>>,

        openfeature@providers@no_op:provider()

    ).



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

get_provider_metadata() ->

    (erlang:element(4, get_provider()))().



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

get_client() ->

    {client, get_provider(), {client_metadata, global}}.



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

    {error, nil}.

set_provider(Provider) ->

    Context = persistent_term:get(

        <<"global_openfeature_context"/utf8>>,

        openfeature@evaluation_context:empty()

    ),

    Api = {api, Provider, Context},

    persistent_term:put(<<"global_openfeature_provider"/utf8>>, Api),

    (erlang:element(2, Provider))(Context).



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

set_context(Context) ->

    persistent_term:put(<<"global_openfeature_context"/utf8>>, Context).



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

set_domain_provider(Domain, Provider) ->

    _pipe = persistent_term:get(

        <<"openfeature_domain_providers"/utf8>>,

        gleam@dict:new()

    ),

    _pipe@1 = gleam@dict:insert(_pipe, Domain, Provider),

    persistent_term:put(<<"openfeature_domain_providers"/utf8>>, _pipe@1).



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

get_domain_provider(Domain) ->

    _pipe = persistent_term:get(

        <<"openfeature_domain_providers"/utf8>>,

        gleam@dict:new()

    ),

    _pipe@1 = gleam@dict:get(_pipe, Domain),

    gleam@result:unwrap(_pipe@1, get_provider()).



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

get_domain_provider_metadata(Domain) ->

    (erlang:element(4, get_domain_provider(Domain)))().



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

get_domain_client(Domain) ->

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