emqx/src/emqx_json.erl

75 lines
2.0 KiB
Erlang

%% Copyright (c) 2013-2019 EMQ Technologies Co., Ltd. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
-module(emqx_json).
-export([ encode/1
, encode/2
, safe_encode/1
, safe_encode/2
]).
-export([ decode/1
, decode/2
, safe_decode/1
, safe_decode/2
]).
-spec(encode(jsx:json_term()) -> jsx:json_text()).
encode(Term) ->
jsx:encode(Term).
-spec(encode(jsx:json_term(), jsx_to_json:config()) -> jsx:json_text()).
encode(Term, Opts) ->
jsx:encode(Term, Opts).
-spec(safe_encode(jsx:json_term())
-> {ok, jsx:json_text()} | {error, term()}).
safe_encode(Term) ->
safe_encode(Term, []).
-spec(safe_encode(jsx:json_term(), jsx_to_json:config())
-> {ok, jsx:json_text()} | {error, term()}).
safe_encode(Term, Opts) ->
try encode(Term, Opts) of
Json -> {ok, Json}
catch
error:Reason ->
{error, Reason}
end.
-spec(decode(jsx:json_text()) -> jsx:json_term()).
decode(Json) ->
jsx:decode(Json).
-spec(decode(jsx:json_text(), jsx_to_json:config()) -> jsx:json_term()).
decode(Json, Opts) ->
jsx:decode(Json, Opts).
-spec(safe_decode(jsx:json_text())
-> {ok, jsx:json_term()} | {error, term()}).
safe_decode(Json) ->
safe_decode(Json, []).
-spec(safe_decode(jsx:json_text(), jsx_to_json:config())
-> {ok, jsx:json_term()} | {error, term()}).
safe_decode(Json, Opts) ->
try decode(Json, Opts) of
Term -> {ok, Term}
catch
error:Reason ->
{error, Reason}
end.