@zlattice/lattice-js/dist/cjs/lattice/protobuf/serializer.js

Lattice blockchain TypeScript SDK with dual module support (CJS + ESM)

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.getMessageProtoType = getMessageProtoType;
exports.serializeMessage = serializeMessage;
exports.deserializeMessage = deserializeMessage;
const protobuf = __importStar(require("protobufjs"));
/**
 * Get the first(main) protobuf message type from a proto content string.
 * @param protoContent - The proto content string.
 * @returns The protobuf message type.
 */
async function getMessageProtoType(protoContent) {
    const parseResult = await protobuf.parse(protoContent);
    const root = parseResult.root;
    if (!root) {
        throw new Error("No root object found in the proto file");
    }
    if (!root.nested) {
        throw new Error("No nested objects found in the proto file");
    }
    const firstMessageName = Object.values(root.nested).find((nested) => nested instanceof protobuf.Type)?.name;
    if (!firstMessageName) {
        throw new Error("No message found in the proto file");
    }
    return parseResult.root.lookupType(firstMessageName);
}
/**
 * Serialize a message to a protobuf message.
 * @param messageTypeOrProtoContent - The protobuf message type or the proto content string.
 * @param json - The json string to serialize.
 * @returns The serialized message.
 */
async function serializeMessage(messageTypeOrProtoContent, json) {
    const messageType = typeof messageTypeOrProtoContent === "string"
        ? await getMessageProtoType(messageTypeOrProtoContent)
        : messageTypeOrProtoContent;
    const obj = JSON.parse(json);
    const message = messageType.fromObject(obj);
    return messageType.encode(message).finish();
}
/**
 * Deserialize a protobuf message to a json string.
 * @param messageTypeOrProtoContent - The protobuf message type or the proto content string.
 * @param data - The serialized message.
 * @returns The json string.
 */
async function deserializeMessage(messageTypeOrProtoContent, data) {
    const messageType = typeof messageTypeOrProtoContent === "string"
        ? await getMessageProtoType(messageTypeOrProtoContent)
        : messageTypeOrProtoContent;
    const message = messageType.decode(data);
    /**
      const obj = messageType.toObject(message, {
        longs: String,
        enums: String,
        bytes: String
      });
     */
    const obj = messageType.toObject(message, { defaults: false });
    return JSON.stringify(obj);
}
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