Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2x 2x 2x 2x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import { BufferReader, BufferWriter } from '@node-dlc/bufio';
import { MessageType } from '../MessageType';
import { IDlcMessage } from './DlcMessage';
export abstract class OrderMetadata {
public static deserialize(buf: Buffer): OrderMetadata {
const reader = new BufferReader(buf);
const type = Number(reader.readBigSize());
switch (type) {
case MessageType.OrderMetadataV0:
return OrderMetadataV0.deserialize(buf);
default:
throw new Error(`Order metadata TLV type must be OrderMetadataV0`);
}
}
public abstract type: number;
public abstract toJSON(): IOrderMetadataJSON;
public abstract serialize(): Buffer;
}
/**
* OrderMetadata message contains information about a node and indicates its
* desire to enter into a new contract. This is the first step toward
* order negotiation.
*/
export class OrderMetadataV0 extends OrderMetadata implements IDlcMessage {
public static type = MessageType.OrderMetadataV0;
/**
* Deserializes an offer_dlc_v0 message
* @param buf
*/
public static deserialize(buf: Buffer): OrderMetadataV0 {
const instance = new OrderMetadataV0();
const reader = new BufferReader(buf);
reader.readBigSize(); // read type
instance.length = reader.readBigSize();
const offerIdLength = reader.readBigSize();
const offerIdBuf = reader.readBytes(Number(offerIdLength));
instance.offerId = offerIdBuf.toString();
Eif (!reader.eof) {
instance.createdAt = reader.readUInt32BE();
instance.goodTill = reader.readUInt32BE();
}
return instance;
}
/**
* The type for order_metadata_v0 message. order_metadata_v0 = 62774
*/
public type = OrderMetadataV0.type;
public length: bigint;
/**
* offerId is a unique identifier for an offer
* It can be used for updating liquidity for a particular category
* For example, how much liquidity is remaining for a particular strategy
* which a market maker is providing liquidity for
*/
public offerId: string;
/**
* Timestamp for order creation
*/
public createdAt = 0;
/**
* Amount of time order is good untill
*/
public goodTill = 0;
/**
* Converts order_metadata_v0 to JSON
*/
public toJSON(): IOrderMetadataJSON {
return {
type: this.type,
offerId: this.offerId,
createdAt: this.createdAt,
goodTill: this.goodTill,
};
}
/**
* Serializes the oracle_event message into a Buffer
*/
public serialize(): Buffer {
const writer = new BufferWriter();
writer.writeBigSize(this.type);
const dataWriter = new BufferWriter();
dataWriter.writeBigSize(this.offerId.length);
dataWriter.writeBytes(Buffer.from(this.offerId));
dataWriter.writeUInt32BE(this.createdAt);
dataWriter.writeUInt32BE(this.goodTill);
writer.writeBigSize(dataWriter.size);
writer.writeBytes(dataWriter.toBuffer());
return writer.toBuffer();
}
}
export interface IOrderMetadataJSON {
type: number;
offerId: string;
createdAt: number;
goodTill: number;
}
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