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Convert json to protobuf message in browser
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| const isEmptyObject = obj => | |
| typeof obj === "object" && | |
| Object.keys(obj).length === 0 && | |
| obj.constructor === Object; | |
| const createProxy = msg => { | |
| if (!msg || typeof msg !== "object") { | |
| return msg; | |
| } | |
| if (Array.isArray(msg)) { | |
| return msg.map(createProxy); | |
| } | |
| return new Proxy(msg, { | |
| get: function (target, prop) { | |
| const fieldUpper = prop.replace(/get|List/g, ""); | |
| const fieldName = `${fieldUpper[0].toLowerCase()}${fieldUpper.substring(1)}`; | |
| const value = target[fieldName]; | |
| return () => | |
| value === null || isEmptyObject(value) | |
| ? null | |
| : createProxy(value); | |
| } | |
| }); | |
| } | |
| export const protoMsgFromJson = (protoObject, ProtoClass) => | |
| protoMsgFromObject(JSON.parse(protoObject), ProtoClass); | |
| /** | |
| * Serialize protobuf message fromObject | |
| * | |
| * @param {any} protoObject | |
| * @param {typeof require('google-protobuf').Message} ProtoClass | |
| * @see https://github.com/sglim/protobuf-js-from-object for inspiration | |
| * @returns {typeof require('google-protobuf').Message} ProtoClass instance | |
| */ | |
| export const protoMsgFromObject = (protoObject, ProtoClass) => { | |
| if (jspb === undefined) { | |
| throw new Error("Please include google-protobuf.js"); | |
| } | |
| const writer = new jspb.BinaryWriter(); | |
| ProtoClass.serializeBinaryToWriter(createProxy(protoObject), writer); | |
| return ProtoClass.deserializeBinary(writer.getResultBuffer()); | |
| } |
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