proto3-json-serializer
Version:
Support for proto3 JSON serialiazation/deserialization for protobuf.js
103 lines • 3.98 kB
JavaScript
;
// Copyright 2021 Google LLC
//
// 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.
Object.defineProperty(exports, "__esModule", { value: true });
exports.googleProtobufStructToProto3JSON = googleProtobufStructToProto3JSON;
exports.googleProtobufListValueToProto3JSON = googleProtobufListValueToProto3JSON;
exports.googleProtobufValueToProto3JSON = googleProtobufValueToProto3JSON;
exports.googleProtobufStructFromProto3JSON = googleProtobufStructFromProto3JSON;
exports.googleProtobufListValueFromProto3JSON = googleProtobufListValueFromProto3JSON;
exports.googleProtobufValueFromProto3JSON = googleProtobufValueFromProto3JSON;
const util_1 = require("./util");
function googleProtobufStructToProto3JSON(obj) {
const result = {};
const fields = obj.fields;
for (const [key, value] of Object.entries(fields)) {
result[key] = googleProtobufValueToProto3JSON(value);
}
return result;
}
function googleProtobufListValueToProto3JSON(obj) {
(0, util_1.assert)(Array.isArray(obj.values), 'ListValue internal representation must contain array of values');
return obj.values.map(googleProtobufValueToProto3JSON);
}
function googleProtobufValueToProto3JSON(obj) {
if (Object.prototype.hasOwnProperty.call(obj, 'nullValue')) {
return null;
}
if (Object.prototype.hasOwnProperty.call(obj, 'numberValue') &&
typeof obj.numberValue === 'number') {
if (!Number.isFinite(obj.numberValue)) {
return obj.numberValue.toString();
}
return obj.numberValue;
}
if (Object.prototype.hasOwnProperty.call(obj, 'stringValue') &&
typeof obj.stringValue === 'string') {
return obj.stringValue;
}
if (Object.prototype.hasOwnProperty.call(obj, 'boolValue') &&
typeof obj.boolValue === 'boolean') {
return obj.boolValue;
}
if (Object.prototype.hasOwnProperty.call(obj, 'structValue') &&
typeof obj.structValue === 'object') {
return googleProtobufStructToProto3JSON(obj.structValue);
}
if (Object.prototype.hasOwnProperty.call(obj, 'listValue') &&
typeof obj === 'object' &&
typeof obj.listValue === 'object') {
return googleProtobufListValueToProto3JSON(obj.listValue);
}
// Assuming empty Value to be null
return null;
}
function googleProtobufStructFromProto3JSON(json) {
const fields = {};
for (const [key, value] of Object.entries(json)) {
fields[key] = googleProtobufValueFromProto3JSON(value);
}
return { fields };
}
function googleProtobufListValueFromProto3JSON(json) {
return {
values: json.map(element => googleProtobufValueFromProto3JSON(element)),
};
}
function googleProtobufValueFromProto3JSON(json) {
if (json === null) {
return { nullValue: 'NULL_VALUE' };
}
if (typeof json === 'number') {
return { numberValue: json };
}
if (typeof json === 'string') {
return { stringValue: json };
}
if (typeof json === 'boolean') {
return { boolValue: json };
}
if (Array.isArray(json)) {
return {
listValue: googleProtobufListValueFromProto3JSON(json),
};
}
if (typeof json === 'object') {
return {
structValue: googleProtobufStructFromProto3JSON(json),
};
}
throw new Error(`googleProtobufValueFromProto3JSON: incorrect parameter type: ${typeof json}`);
}
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