@0xpolygonid/js-sdk
Version:
SDK to work with Polygon ID
82 lines (81 loc) • 2.79 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.PlainPacker = void 0;
const constants_1 = require("../constants");
const utils_1 = require("../../utils");
const utils_2 = require("../utils");
/**
* Plain packer just serializes bytes to JSON and adds media type
*
* @public
* @class PlainPacker
* @implements implements IPacker interface
*/
class PlainPacker {
constructor() {
this.supportedProtocolVersions = [constants_1.ProtocolVersion.V1];
}
/**
* Packs a basic message using the specified parameters.
*
* @param msg - The basic message to pack.
* @param param - The packer parameters.
* @returns A promise that resolves to a Uint8Array representing the packed message.
* @throws An error if the method is not implemented.
*/
packMessage(msg) {
msg.typ = constants_1.MediaType.PlainMessage;
return Promise.resolve(utils_1.byteEncoder.encode(JSON.stringify(msg)));
}
/**
* Pack returns packed message to transport envelope
*
* @param {Uint8Array} payload - json message serialized
* @param {PlainPackerParams} _params - not used here
* @returns `Promise<Uint8Array>`
*/
async pack(payload) {
const msg = JSON.parse(utils_1.byteDecoder.decode(payload));
msg.typ = constants_1.MediaType.PlainMessage;
return Promise.resolve(utils_1.byteEncoder.encode(JSON.stringify(msg)));
}
/**
* Unpack returns unpacked message from transport envelope
*
* @param {Uint8Array} envelope - packed envelope (serialized json with media type)
* @returns `Promise<BasicMessage>`
*/
async unpack(envelope) {
return JSON.parse(utils_1.byteDecoder.decode(envelope));
}
/**
* returns media type for plain message
*
* @returns MediaType
*/
mediaType() {
return constants_1.MediaType.PlainMessage;
}
/** {@inheritDoc IPacker.getSupportedProfiles} */
getSupportedProfiles() {
return this.supportedProtocolVersions.map((v) => `${v};env=${this.mediaType()}`);
}
/** {@inheritDoc IPacker.isProfileSupported} */
isProfileSupported(profile) {
const { protocolVersion, env, circuits, alg } = (0, utils_2.parseAcceptProfile)(profile);
if (!this.supportedProtocolVersions.includes(protocolVersion)) {
return false;
}
if (env !== this.mediaType()) {
return false;
}
if (circuits) {
throw new Error(`Circuits are not supported for ${env} media type`);
}
if (alg) {
throw new Error(`Algorithms are not supported for ${env} media type`);
}
return true;
}
}
exports.PlainPacker = PlainPacker;