%% WARNING: DO NOT EDIT, AUTO-GENERATED CODE! %% See https://github.com/aws-beam/aws-codegen for more details. %% @doc AWS IoT %% %% AWS IoT-Data enables secure, bi-directional communication between %% Internet-connected things (such as sensors, actuators, embedded devices, %% or smart appliances) and the AWS cloud. %% %% It implements a broker for applications and things to publish messages %% over HTTP (Publish) and retrieve, update, and delete shadows. A shadow is %% a persistent representation of your things and their state in the AWS %% cloud. %% %% Find the endpoint address for actions in the AWS IoT data plane by running %% this CLI command: %% %% `aws iot describe-endpoint --endpoint-type iot:Data-ATS' %% %% The service name used by AWS Signature Version 4 to sign requests is: %% iotdevicegateway. -module(aws_iot_data_plane). -export([delete_thing_shadow/3, delete_thing_shadow/4, get_thing_shadow/2, get_thing_shadow/4, get_thing_shadow/5, list_named_shadows_for_thing/2, list_named_shadows_for_thing/4, list_named_shadows_for_thing/5, publish/3, publish/4, update_thing_shadow/3, update_thing_shadow/4]). -include_lib("hackney/include/hackney_lib.hrl"). %%==================================================================== %% API %%==================================================================== %% @doc Deletes the shadow for the specified thing. %% %% For more information, see DeleteThingShadow in the AWS IoT Developer %% Guide. delete_thing_shadow(Client, ThingName, Input) -> delete_thing_shadow(Client, ThingName, Input, []). delete_thing_shadow(Client, ThingName, Input0, Options0) -> Method = delete, Path = ["/things/", aws_util:encode_uri(ThingName), "/shadow"], SuccessStatusCode = undefined, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Input1 = Input0, QueryMapping = [ {<<"name">>, <<"shadowName">>} ], {Query_, Input} = aws_request:build_headers(QueryMapping, Input1), request(Client, Method, Path, Query_, Headers, Input, Options, SuccessStatusCode). %% @doc Gets the shadow for the specified thing. %% %% For more information, see GetThingShadow in the AWS IoT Developer Guide. get_thing_shadow(Client, ThingName) when is_map(Client) -> get_thing_shadow(Client, ThingName, #{}, #{}). get_thing_shadow(Client, ThingName, QueryMap, HeadersMap) when is_map(Client), is_map(QueryMap), is_map(HeadersMap) -> get_thing_shadow(Client, ThingName, QueryMap, HeadersMap, []). get_thing_shadow(Client, ThingName, QueryMap, HeadersMap, Options0) when is_map(Client), is_map(QueryMap), is_map(HeadersMap), is_list(Options0) -> Path = ["/things/", aws_util:encode_uri(ThingName), "/shadow"], SuccessStatusCode = undefined, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Query0_ = [ {<<"name">>, maps:get(<<"name">>, QueryMap, undefined)} ], Query_ = [H || {_, V} = H <- Query0_, V =/= undefined], request(Client, get, Path, Query_, Headers, undefined, Options, SuccessStatusCode). %% @doc Lists the shadows for the specified thing. list_named_shadows_for_thing(Client, ThingName) when is_map(Client) -> list_named_shadows_for_thing(Client, ThingName, #{}, #{}). list_named_shadows_for_thing(Client, ThingName, QueryMap, HeadersMap) when is_map(Client), is_map(QueryMap), is_map(HeadersMap) -> list_named_shadows_for_thing(Client, ThingName, QueryMap, HeadersMap, []). list_named_shadows_for_thing(Client, ThingName, QueryMap, HeadersMap, Options0) when is_map(Client), is_map(QueryMap), is_map(HeadersMap), is_list(Options0) -> Path = ["/api/things/shadow/ListNamedShadowsForThing/", aws_util:encode_uri(ThingName), ""], SuccessStatusCode = undefined, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Query0_ = [ {<<"nextToken">>, maps:get(<<"nextToken">>, QueryMap, undefined)}, {<<"pageSize">>, maps:get(<<"pageSize">>, QueryMap, undefined)} ], Query_ = [H || {_, V} = H <- Query0_, V =/= undefined], request(Client, get, Path, Query_, Headers, undefined, Options, SuccessStatusCode). %% @doc Publishes state information. %% %% For more information, see HTTP Protocol in the AWS IoT Developer Guide. publish(Client, Topic, Input) -> publish(Client, Topic, Input, []). publish(Client, Topic, Input0, Options0) -> Method = post, Path = ["/topics/", aws_util:encode_uri(Topic), ""], SuccessStatusCode = undefined, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Input1 = Input0, QueryMapping = [ {<<"qos">>, <<"qos">>} ], {Query_, Input} = aws_request:build_headers(QueryMapping, Input1), request(Client, Method, Path, Query_, Headers, Input, Options, SuccessStatusCode). %% @doc Updates the shadow for the specified thing. %% %% For more information, see UpdateThingShadow in the AWS IoT Developer %% Guide. update_thing_shadow(Client, ThingName, Input) -> update_thing_shadow(Client, ThingName, Input, []). update_thing_shadow(Client, ThingName, Input0, Options0) -> Method = post, Path = ["/things/", aws_util:encode_uri(ThingName), "/shadow"], SuccessStatusCode = undefined, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Input1 = Input0, QueryMapping = [ {<<"name">>, <<"shadowName">>} ], {Query_, Input} = aws_request:build_headers(QueryMapping, Input1), request(Client, Method, Path, Query_, Headers, Input, Options, SuccessStatusCode). %%==================================================================== %% Internal functions %%==================================================================== -spec request(aws_client:aws_client(), atom(), iolist(), list(), list(), map() | undefined, list(), pos_integer() | undefined) -> {ok, Result, {integer(), list(), hackney:client()}} | {error, Error, {integer(), list(), hackney:client()}} | {error, term()} when Result :: map(), Error :: map(). request(Client, Method, Path, Query, Headers0, Input, Options, SuccessStatusCode) -> Client1 = Client#{service => <<"iotdata">>}, Host = build_host(<<"data.iot">>, Client1), URL0 = build_url(Host, Path, Client1), URL = aws_request:add_query(URL0, Query), AdditionalHeaders = [ {<<"Host">>, Host} , {<<"Content-Type">>, <<"application/x-amz-json-1.1">>} ], Headers1 = aws_request:add_headers(AdditionalHeaders, Headers0), Payload = case proplists:get_value(send_body_as_binary, Options) of true -> maps:get(<<"Body">>, Input, <<"">>); false -> encode_payload(Input) end, MethodBin = aws_request:method_to_binary(Method), SignedHeaders = aws_request:sign_request(Client1, MethodBin, URL, Headers1, Payload), Response = hackney:request(Method, URL, SignedHeaders, Payload, Options), DecodeBody = not proplists:get_value(receive_body_as_binary, Options), handle_response(Response, SuccessStatusCode, DecodeBody). handle_response({ok, StatusCode, ResponseHeaders, Client}, SuccessStatusCode, DecodeBody) when StatusCode =:= 200; StatusCode =:= 202; StatusCode =:= 204; StatusCode =:= SuccessStatusCode -> case hackney:body(Client) of {ok, <<>>} when StatusCode =:= 200; StatusCode =:= SuccessStatusCode -> {ok, #{}, {StatusCode, ResponseHeaders, Client}}; {ok, Body} -> Result = case DecodeBody of true -> jsx:decode(Body); false -> #{<<"Body">> => Body} end, {ok, Result, {StatusCode, ResponseHeaders, Client}} end; handle_response({ok, StatusCode, ResponseHeaders, Client}, _, _DecodeBody) -> {ok, Body} = hackney:body(Client), Error = jsx:decode(Body), {error, Error, {StatusCode, ResponseHeaders, Client}}; handle_response({error, Reason}, _, _DecodeBody) -> {error, Reason}. build_host(_EndpointPrefix, #{region := <<"local">>, endpoint := Endpoint}) -> Endpoint; build_host(_EndpointPrefix, #{region := <<"local">>}) -> <<"localhost">>; build_host(EndpointPrefix, #{region := Region, endpoint := Endpoint}) -> aws_util:binary_join([EndpointPrefix, Region, Endpoint], <<".">>). build_url(Host, Path0, Client) -> Proto = maps:get(proto, Client), Path = erlang:iolist_to_binary(Path0), Port = maps:get(port, Client), aws_util:binary_join([Proto, <<"://">>, Host, <<":">>, Port, Path], <<"">>). -spec encode_payload(undefined | map()) -> binary(). encode_payload(undefined) -> <<>>; encode_payload(Input) -> jsx:encode(Input).