%% WARNING: DO NOT EDIT, AUTO-GENERATED CODE! %% See https://github.com/aws-beam/aws-codegen for more details. %% @doc With Amazon CloudWatch RUM, you can perform real-user monitoring to %% collect client-side data about your web application performance from %% actual user sessions in real time. %% %% The data collected includes page load times, client-side errors, and user %% behavior. When you view this data, you can see it all aggregated together %% and also see breakdowns by the browsers and devices that your customers %% use. %% %% You can use the collected data to quickly identify and debug client-side %% performance issues. CloudWatch RUM helps you visualize anomalies in your %% application performance and find relevant debugging data such as error %% messages, stack traces, and user sessions. You can also use RUM to %% understand the range of end-user impact including the number of users, %% geolocations, and browsers used. -module(aws_rum). -export([batch_create_rum_metric_definitions/3, batch_create_rum_metric_definitions/4, batch_delete_rum_metric_definitions/3, batch_delete_rum_metric_definitions/4, batch_get_rum_metric_definitions/3, batch_get_rum_metric_definitions/5, batch_get_rum_metric_definitions/6, create_app_monitor/2, create_app_monitor/3, delete_app_monitor/3, delete_app_monitor/4, delete_rum_metrics_destination/3, delete_rum_metrics_destination/4, get_app_monitor/2, get_app_monitor/4, get_app_monitor/5, get_app_monitor_data/3, get_app_monitor_data/4, list_app_monitors/2, list_app_monitors/3, list_rum_metrics_destinations/2, list_rum_metrics_destinations/4, list_rum_metrics_destinations/5, list_tags_for_resource/2, list_tags_for_resource/4, list_tags_for_resource/5, put_rum_events/3, put_rum_events/4, put_rum_metrics_destination/3, put_rum_metrics_destination/4, tag_resource/3, tag_resource/4, untag_resource/3, untag_resource/4, update_app_monitor/3, update_app_monitor/4, update_rum_metric_definition/3, update_rum_metric_definition/4]). -include_lib("hackney/include/hackney_lib.hrl"). %%==================================================================== %% API %%==================================================================== %% @doc Specifies the extended metrics and custom metrics that you want a %% CloudWatch RUM app monitor to send to a destination. %% %% Valid destinations include CloudWatch and Evidently. %% %% By default, RUM app monitors send some metrics to CloudWatch. These %% default metrics are listed in CloudWatch metrics that you can collect with %% CloudWatch RUM. %% %% In addition to these default metrics, you can choose to send extended %% metrics, custom metrics, or both. %% %% The maximum number of metric definitions that you can specify %% in one `BatchCreateRumMetricDefinitions' operation is 200. %% %% The maximum number of metric definitions that one destination can contain %% is 2000. %% %% Extended metrics sent to CloudWatch and RUM custom metrics are charged as %% CloudWatch custom metrics. Each combination of additional dimension name %% and dimension value counts as a custom metric. For more information, see %% Amazon CloudWatch Pricing. %% %% You must have already created a destination for the metrics before you %% send them. For more information, see PutRumMetricsDestination. %% %% If some metric definitions specified in a %% `BatchCreateRumMetricDefinitions' operations are not valid, those %% metric definitions fail and return errors, but all valid metric %% definitions in the same operation still succeed. batch_create_rum_metric_definitions(Client, AppMonitorName, Input) -> batch_create_rum_metric_definitions(Client, AppMonitorName, Input, []). batch_create_rum_metric_definitions(Client, AppMonitorName, Input0, Options0) -> Method = post, Path = ["/rummetrics/", aws_util:encode_uri(AppMonitorName), "/metrics"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, Query_ = [], Input = Input2, request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Removes the specified metrics from being sent to an extended metrics %% destination. %% %% If some metric definition IDs specified in a %% `BatchDeleteRumMetricDefinitions' operations are not valid, those %% metric definitions fail and return errors, but all valid metric definition %% IDs in the same operation are still deleted. %% %% The maximum number of metric definitions that you can specify in one %% `BatchDeleteRumMetricDefinitions' operation is 200. batch_delete_rum_metric_definitions(Client, AppMonitorName, Input) -> batch_delete_rum_metric_definitions(Client, AppMonitorName, Input, []). batch_delete_rum_metric_definitions(Client, AppMonitorName, Input0, Options0) -> Method = delete, Path = ["/rummetrics/", aws_util:encode_uri(AppMonitorName), "/metrics"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, QueryMapping = [ {<<"destination">>, <<"Destination">>}, {<<"destinationArn">>, <<"DestinationArn">>}, {<<"metricDefinitionIds">>, <<"MetricDefinitionIds">>} ], {Query_, Input} = aws_request:build_headers(QueryMapping, Input2), request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Retrieves the list of metrics and dimensions that a RUM app monitor %% is sending to a single destination. batch_get_rum_metric_definitions(Client, AppMonitorName, Destination) when is_map(Client) -> batch_get_rum_metric_definitions(Client, AppMonitorName, Destination, #{}, #{}). batch_get_rum_metric_definitions(Client, AppMonitorName, Destination, QueryMap, HeadersMap) when is_map(Client), is_map(QueryMap), is_map(HeadersMap) -> batch_get_rum_metric_definitions(Client, AppMonitorName, Destination, QueryMap, HeadersMap, []). batch_get_rum_metric_definitions(Client, AppMonitorName, Destination, QueryMap, HeadersMap, Options0) when is_map(Client), is_map(QueryMap), is_map(HeadersMap), is_list(Options0) -> Path = ["/rummetrics/", aws_util:encode_uri(AppMonitorName), "/metrics"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Query0_ = [ {<<"destination">>, Destination}, {<<"destinationArn">>, maps:get(<<"destinationArn">>, QueryMap, undefined)}, {<<"maxResults">>, maps:get(<<"maxResults">>, QueryMap, undefined)}, {<<"nextToken">>, maps:get(<<"nextToken">>, QueryMap, undefined)} ], Query_ = [H || {_, V} = H <- Query0_, V =/= undefined], request(Client, get, Path, Query_, Headers, undefined, Options, SuccessStatusCode). %% @doc Creates a Amazon CloudWatch RUM app monitor, which collects telemetry %% data from your application and sends that data to RUM. %% %% The data includes performance and reliability information such as page %% load time, client-side errors, and user behavior. %% %% You use this operation only to create a new app monitor. To update an %% existing app monitor, use UpdateAppMonitor instead. %% %% After you create an app monitor, sign in to the CloudWatch RUM console to %% get the JavaScript code snippet to add to your web application. For more %% information, see How do I find a code snippet that I've already %% generated? create_app_monitor(Client, Input) -> create_app_monitor(Client, Input, []). create_app_monitor(Client, Input0, Options0) -> Method = post, Path = ["/appmonitor"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, Query_ = [], Input = Input2, request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Deletes an existing app monitor. %% %% This immediately stops the collection of data. delete_app_monitor(Client, Name, Input) -> delete_app_monitor(Client, Name, Input, []). delete_app_monitor(Client, Name, Input0, Options0) -> Method = delete, Path = ["/appmonitor/", aws_util:encode_uri(Name), ""], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, Query_ = [], Input = Input2, request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Deletes a destination for CloudWatch RUM extended metrics, so that %% the specified app monitor stops sending extended metrics to that %% destination. delete_rum_metrics_destination(Client, AppMonitorName, Input) -> delete_rum_metrics_destination(Client, AppMonitorName, Input, []). delete_rum_metrics_destination(Client, AppMonitorName, Input0, Options0) -> Method = delete, Path = ["/rummetrics/", aws_util:encode_uri(AppMonitorName), "/metricsdestination"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, QueryMapping = [ {<<"destination">>, <<"Destination">>}, {<<"destinationArn">>, <<"DestinationArn">>} ], {Query_, Input} = aws_request:build_headers(QueryMapping, Input2), request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Retrieves the complete configuration information for one app monitor. get_app_monitor(Client, Name) when is_map(Client) -> get_app_monitor(Client, Name, #{}, #{}). get_app_monitor(Client, Name, QueryMap, HeadersMap) when is_map(Client), is_map(QueryMap), is_map(HeadersMap) -> get_app_monitor(Client, Name, QueryMap, HeadersMap, []). get_app_monitor(Client, Name, QueryMap, HeadersMap, Options0) when is_map(Client), is_map(QueryMap), is_map(HeadersMap), is_list(Options0) -> Path = ["/appmonitor/", aws_util:encode_uri(Name), ""], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Query_ = [], request(Client, get, Path, Query_, Headers, undefined, Options, SuccessStatusCode). %% @doc Retrieves the raw performance events that RUM has collected from your %% web application, so that you can do your own processing or analysis of %% this data. get_app_monitor_data(Client, Name, Input) -> get_app_monitor_data(Client, Name, Input, []). get_app_monitor_data(Client, Name, Input0, Options0) -> Method = post, Path = ["/appmonitor/", aws_util:encode_uri(Name), "/data"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, Query_ = [], Input = Input2, request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Returns a list of the Amazon CloudWatch RUM app monitors in the %% account. list_app_monitors(Client, Input) -> list_app_monitors(Client, Input, []). list_app_monitors(Client, Input0, Options0) -> Method = post, Path = ["/appmonitors"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, QueryMapping = [ {<<"maxResults">>, <<"MaxResults">>}, {<<"nextToken">>, <<"NextToken">>} ], {Query_, Input} = aws_request:build_headers(QueryMapping, Input2), request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Returns a list of destinations that you have created to receive RUM %% extended metrics, for the specified app monitor. %% %% For more information about extended metrics, see AddRumMetrics. list_rum_metrics_destinations(Client, AppMonitorName) when is_map(Client) -> list_rum_metrics_destinations(Client, AppMonitorName, #{}, #{}). list_rum_metrics_destinations(Client, AppMonitorName, QueryMap, HeadersMap) when is_map(Client), is_map(QueryMap), is_map(HeadersMap) -> list_rum_metrics_destinations(Client, AppMonitorName, QueryMap, HeadersMap, []). list_rum_metrics_destinations(Client, AppMonitorName, QueryMap, HeadersMap, Options0) when is_map(Client), is_map(QueryMap), is_map(HeadersMap), is_list(Options0) -> Path = ["/rummetrics/", aws_util:encode_uri(AppMonitorName), "/metricsdestination"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Query0_ = [ {<<"maxResults">>, maps:get(<<"maxResults">>, QueryMap, undefined)}, {<<"nextToken">>, maps:get(<<"nextToken">>, QueryMap, undefined)} ], Query_ = [H || {_, V} = H <- Query0_, V =/= undefined], request(Client, get, Path, Query_, Headers, undefined, Options, SuccessStatusCode). %% @doc Displays the tags associated with a CloudWatch RUM resource. list_tags_for_resource(Client, ResourceArn) when is_map(Client) -> list_tags_for_resource(Client, ResourceArn, #{}, #{}). list_tags_for_resource(Client, ResourceArn, QueryMap, HeadersMap) when is_map(Client), is_map(QueryMap), is_map(HeadersMap) -> list_tags_for_resource(Client, ResourceArn, QueryMap, HeadersMap, []). list_tags_for_resource(Client, ResourceArn, QueryMap, HeadersMap, Options0) when is_map(Client), is_map(QueryMap), is_map(HeadersMap), is_list(Options0) -> Path = ["/tags/", aws_util:encode_uri(ResourceArn), ""], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Query_ = [], request(Client, get, Path, Query_, Headers, undefined, Options, SuccessStatusCode). %% @doc Sends telemetry events about your application performance and user %% behavior to CloudWatch RUM. %% %% The code snippet that RUM generates for you to add to your application %% includes `PutRumEvents' operations to send this data to RUM. %% %% Each `PutRumEvents' operation can send a batch of events from one user %% session. put_rum_events(Client, Id, Input) -> put_rum_events(Client, Id, Input, []). put_rum_events(Client, Id, Input0, Options0) -> Method = post, Path = ["/appmonitors/", aws_util:encode_uri(Id), "/"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, Query_ = [], Input = Input2, request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Creates or updates a destination to receive extended metrics from %% CloudWatch RUM. %% %% You can send extended metrics to CloudWatch or to a CloudWatch Evidently %% experiment. %% %% For more information about extended metrics, see %% BatchCreateRumMetricDefinitions. put_rum_metrics_destination(Client, AppMonitorName, Input) -> put_rum_metrics_destination(Client, AppMonitorName, Input, []). put_rum_metrics_destination(Client, AppMonitorName, Input0, Options0) -> Method = post, Path = ["/rummetrics/", aws_util:encode_uri(AppMonitorName), "/metricsdestination"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, Query_ = [], Input = Input2, request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Assigns one or more tags (key-value pairs) to the specified %% CloudWatch RUM resource. %% %% Currently, the only resources that can be tagged app monitors. %% %% Tags can help you organize and categorize your resources. You can also use %% them to scope user permissions by granting a user permission to access or %% change only resources with certain tag values. %% %% Tags don't have any semantic meaning to Amazon Web Services and are %% interpreted strictly as strings of characters. %% %% You can use the `TagResource' action with a resource that already has %% tags. If you specify a new tag key for the resource, this tag is appended %% to the list of tags associated with the alarm. If you specify a tag key %% that is already associated with the resource, the new tag value that you %% specify replaces the previous value for that tag. %% %% You can associate as many as 50 tags with a resource. %% %% For more information, see Tagging Amazon Web Services resources. tag_resource(Client, ResourceArn, Input) -> tag_resource(Client, ResourceArn, Input, []). tag_resource(Client, ResourceArn, Input0, Options0) -> Method = post, Path = ["/tags/", aws_util:encode_uri(ResourceArn), ""], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, Query_ = [], Input = Input2, request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Removes one or more tags from the specified resource. untag_resource(Client, ResourceArn, Input) -> untag_resource(Client, ResourceArn, Input, []). untag_resource(Client, ResourceArn, Input0, Options0) -> Method = delete, Path = ["/tags/", aws_util:encode_uri(ResourceArn), ""], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, QueryMapping = [ {<<"tagKeys">>, <<"TagKeys">>} ], {Query_, Input} = aws_request:build_headers(QueryMapping, Input2), request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Updates the configuration of an existing app monitor. %% %% When you use this operation, only the parts of the app monitor %% configuration that you specify in this operation are changed. For any %% parameters that you omit, the existing values are kept. %% %% You can't use this operation to change the tags of an existing app %% monitor. To change the tags of an existing app monitor, use TagResource. %% %% To create a new app monitor, use CreateAppMonitor. %% %% After you update an app monitor, sign in to the CloudWatch RUM console to %% get the updated JavaScript code snippet to add to your web application. %% For more information, see How do I find a code snippet that I've %% already generated? update_app_monitor(Client, Name, Input) -> update_app_monitor(Client, Name, Input, []). update_app_monitor(Client, Name, Input0, Options0) -> Method = patch, Path = ["/appmonitor/", aws_util:encode_uri(Name), ""], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, Query_ = [], Input = Input2, request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %% @doc Modifies one existing metric definition for CloudWatch RUM extended %% metrics. %% %% For more information about extended metrics, see %% BatchCreateRumMetricsDefinitions. update_rum_metric_definition(Client, AppMonitorName, Input) -> update_rum_metric_definition(Client, AppMonitorName, Input, []). update_rum_metric_definition(Client, AppMonitorName, Input0, Options0) -> Method = patch, Path = ["/rummetrics/", aws_util:encode_uri(AppMonitorName), "/metrics"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false}, {append_sha256_content_hash, false} | Options0], Headers = [], Input1 = Input0, CustomHeaders = [], Input2 = Input1, Query_ = [], Input = Input2, request(Client, Method, Path, Query_, CustomHeaders ++ Headers, Input, Options, SuccessStatusCode). %%==================================================================== %% Internal functions %%==================================================================== -spec request(aws_client:aws_client(), atom(), iolist(), list(), list(), map() | undefined, list(), pos_integer() | undefined) -> {ok, {integer(), list()}} | {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) -> RequestFun = fun() -> do_request(Client, Method, Path, Query, Headers0, Input, Options, SuccessStatusCode) end, aws_request:request(RequestFun, Options). do_request(Client, Method, Path, Query, Headers0, Input, Options, SuccessStatusCode) -> Client1 = Client#{service => <<"rum">>}, Host = build_host(<<"rum">>, Client1), URL0 = build_url(Host, Path, Client1), URL = aws_request:add_query(URL0, Query), AdditionalHeaders1 = [ {<<"Host">>, Host} , {<<"Content-Type">>, <<"application/x-amz-json-1.1">>} ], Payload = case proplists:get_value(send_body_as_binary, Options) of true -> maps:get(<<"Body">>, Input, <<"">>); false -> encode_payload(Input) end, AdditionalHeaders = case proplists:get_value(append_sha256_content_hash, Options, false) of true -> add_checksum_hash_header(AdditionalHeaders1, Payload); false -> AdditionalHeaders1 end, Headers1 = aws_request:add_headers(AdditionalHeaders, Headers0), 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). add_checksum_hash_header(Headers, Body) -> [ {<<"X-Amz-CheckSum-SHA256">>, base64:encode(crypto:hash(sha256, Body))} | Headers ]. handle_response({ok, StatusCode, ResponseHeaders}, SuccessStatusCode, _DecodeBody) when StatusCode =:= 200; StatusCode =:= 202; StatusCode =:= 204; StatusCode =:= 206; StatusCode =:= SuccessStatusCode -> {ok, {StatusCode, ResponseHeaders}}; handle_response({ok, StatusCode, ResponseHeaders}, _, _DecodeBody) -> {error, {StatusCode, ResponseHeaders}}; handle_response({ok, StatusCode, ResponseHeaders, Client}, SuccessStatusCode, DecodeBody) when StatusCode =:= 200; StatusCode =:= 202; StatusCode =:= 204; StatusCode =:= 206; StatusCode =:= SuccessStatusCode -> case hackney:body(Client) of {ok, <<>>} when StatusCode =:= 200; StatusCode =:= SuccessStatusCode -> {ok, #{}, {StatusCode, ResponseHeaders, Client}}; {ok, Body} -> Result = case DecodeBody of true -> try jsx:decode(Body) catch Error:Reason:Stack -> erlang:raise(error, {body_decode_failed, Error, Reason, StatusCode, Body}, Stack) end; false -> #{<<"Body">> => Body} end, {ok, Result, {StatusCode, ResponseHeaders, Client}} end; handle_response({ok, StatusCode, _ResponseHeaders, _Client}, _, _DecodeBody) when StatusCode =:= 503 -> %% Retriable error if retries are enabled {error, service_unavailable}; handle_response({ok, StatusCode, ResponseHeaders, Client}, _, _DecodeBody) -> {ok, Body} = hackney:body(Client), try DecodedError = jsx:decode(Body), {error, DecodedError, {StatusCode, ResponseHeaders, Client}} catch Error:Reason:Stack -> erlang:raise(error, {body_decode_failed, Error, Reason, StatusCode, Body}, Stack) end; 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 = aws_client:proto(Client), Path = erlang:iolist_to_binary(Path0), Port = aws_client: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).