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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | 1x 1x 9x 1x 9x 9x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | /** * Copyright 2019 NEM * * 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. */ // internal dependencies import { ITransaction, QRCodeDataSchema, QRCodeType, TransactionQR, } from '../../index'; /** * Class `RequestTransactionDataSchema` describes a transaction * request QR code data schema. * * @since 0.3.0 */ class RequestTransactionDataSchema extends QRCodeDataSchema { constructor() { super(); } /** * The `getData()` method returns an object * that will be stored in the `data` field of * the underlying QR Code JSON content. * * @return {any} */ public getData(qr: TransactionQR): any { // serialize the transaction object data. const payload = qr.transaction.serialize(); return { "payload": payload, }; } /** * Parse a JSON QR code content into a TransactionQR * object. * * @param json {string} * @param transactionCreateFromPayload the transaction parser that creates a transaction from a binary payload. * @return {TransactionQR} * @throws {Error} On empty `json` given. * @throws {Error} On missing `type` field value. * @throws {Error} On unrecognized QR code `type` field value. */ public static parse( json: string, transactionCreateFromPayload: (payload: string) => ITransaction ): TransactionQR { Iif (! json.length) { throw Error('JSON argument cannot be empty.'); } const jsonObj = JSON.parse(json); Iif (!jsonObj.type || jsonObj.type !== QRCodeType.RequestTransaction) { throw Error('Invalid type field value for TransactionQR.'); } // read contact data const transaction = transactionCreateFromPayload(jsonObj.data.payload); const network = jsonObj.network_id; const generationHash = jsonObj.chain_id; return new TransactionQR(transaction, network, generationHash); } } export {RequestTransactionDataSchema}; |