%% WARNING: DO NOT EDIT, AUTO-GENERATED CODE! %% See https://github.com/aws-beam/aws-codegen for more details. %% @doc Amazon RDS Data Service %% %% Amazon RDS provides an HTTP endpoint to run SQL statements on an Amazon %% Aurora Serverless DB cluster. %% %% To run these statements, you work with the Data Service API. %% %% For more information about the Data Service API, see Using the Data API %% for Aurora Serverless in the Amazon Aurora User Guide. -module(aws_rds_data). -export([batch_execute_statement/2, batch_execute_statement/3, begin_transaction/2, begin_transaction/3, commit_transaction/2, commit_transaction/3, execute_sql/2, execute_sql/3, execute_statement/2, execute_statement/3, rollback_transaction/2, rollback_transaction/3]). -include_lib("hackney/include/hackney_lib.hrl"). %%==================================================================== %% API %%==================================================================== %% @doc Runs a batch SQL statement over an array of data. %% %% You can run bulk update and insert operations for multiple records using a %% DML statement with different parameter sets. Bulk operations can provide a %% significant performance improvement over individual insert and update %% operations. %% %% If a call isn't part of a transaction because it doesn't include the %% `transactionID' parameter, changes that result from the call are committed %% automatically. batch_execute_statement(Client, Input) -> batch_execute_statement(Client, Input, []). batch_execute_statement(Client, Input0, Options0) -> Method = post, Path = ["/BatchExecute"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Input1 = Input0, Query_ = [], Input = Input1, request(Client, Method, Path, Query_, Headers, Input, Options, SuccessStatusCode). %% @doc Starts a SQL transaction. %% %%

A transaction can run for a maximum of 24 hours. A %% transaction is terminated and rolled back automatically after 24 %% hours.

A transaction times out if no calls use its transaction ID %% in three minutes. If a transaction times out before it's committed, it's %% rolled back automatically.

DDL statements inside a transaction %% cause an implicit commit. We recommend that you run each DDL statement in %% a separate ExecuteStatement call with %% continueAfterTimeout enabled.

 begin_transaction(Client, Input) -> begin_transaction(Client, Input, []). begin_transaction(Client, Input0, Options0) -> Method = post, Path = ["/BeginTransaction"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Input1 = Input0, Query_ = [], Input = Input1, request(Client, Method, Path, Query_, Headers, Input, Options, SuccessStatusCode). %% @doc Ends a SQL transaction started with the `BeginTransaction' operation %% and commits the changes. commit_transaction(Client, Input) -> commit_transaction(Client, Input, []). commit_transaction(Client, Input0, Options0) -> Method = post, Path = ["/CommitTransaction"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Input1 = Input0, Query_ = [], Input = Input1, request(Client, Method, Path, Query_, Headers, Input, Options, SuccessStatusCode). %% @doc Runs one or more SQL statements. %% %% This operation is deprecated. Use the `BatchExecuteStatement' or %% `ExecuteStatement' operation. execute_sql(Client, Input) -> execute_sql(Client, Input, []). execute_sql(Client, Input0, Options0) -> Method = post, Path = ["/ExecuteSql"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Input1 = Input0, Query_ = [], Input = Input1, request(Client, Method, Path, Query_, Headers, Input, Options, SuccessStatusCode). %% @doc Runs a SQL statement against a database. %% %% If a call isn't part of a transaction because it doesn't include the %% `transactionID' parameter, changes that result from the call are committed %% automatically. %% %% The response size limit is 1 MB. If the call returns more than 1 MB of %% response data, the call is terminated. execute_statement(Client, Input) -> execute_statement(Client, Input, []). execute_statement(Client, Input0, Options0) -> Method = post, Path = ["/Execute"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Input1 = Input0, Query_ = [], Input = Input1, request(Client, Method, Path, Query_, Headers, Input, Options, SuccessStatusCode). %% @doc Performs a rollback of a transaction. %% %% Rolling back a transaction cancels its changes. rollback_transaction(Client, Input) -> rollback_transaction(Client, Input, []). rollback_transaction(Client, Input0, Options0) -> Method = post, Path = ["/RollbackTransaction"], SuccessStatusCode = 200, Options = [{send_body_as_binary, false}, {receive_body_as_binary, false} | Options0], Headers = [], Input1 = Input0, Query_ = [], Input = 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 => <<"rds-data">>}, Host = build_host(<<"rds-data">>, 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).