Add cancel limit order (#16)

* Add cancel limit order

* Fix comment

hosted-sdk-demo/src/cancel-limit-order.ts

@@ -0,0 +1,41 @@
+import axios from "axios";
+import { CHAIN_ID, ORDER_ID, USER_ADDRESS } from "./constants";
+import { callSDK, getSigner, LIMIT_ORDER_URL } from "./helper";
+import { LimitOrderResponse } from "./types";
+
+export async function cancelAll() {
+    // Cancel all limit orders on <CHAIN_ID> made by <USER_ADDRESS>
+    const res = await callSDK(`v1/sdk/${CHAIN_ID}/limit-order/cancel-all`, {
+        userAddress: USER_ADDRESS,
+    });
+
+    // Send tx
+    getSigner().sendTransaction(res.tx);
+}
+
+export async function cancelSingle() {
+    // Get order with <ORDER_ID>
+    const {
+        data: orderData
+    } = await axios.get<LimitOrderResponse>(LIMIT_ORDER_URL + `/v1/limit-order/${ORDER_ID}`, {});
+
+    // Cancel the order
+    const res = await callSDK(`v1/sdk/${CHAIN_ID}/limit-order/cancel-single`, {
+        userAddress: USER_ADDRESS,
+        salt: orderData.salt,
+        expiry: orderData.expiry,
+        nonce: orderData.nonce,
+        orderType: orderData.type,
+        token: orderData.token,
+        YT: orderData.yt,
+        maker: orderData.maker,
+        receiver: orderData.receiver,
+        makingAmount: orderData.makingAmount,
+        lnImpliedRate: orderData.lnImpliedRate,
+        failSafeRate: orderData.failSafeRate,
+        permit: orderData.permit,
+    });
+
+    // Send tx
+    getSigner().sendTransaction(res.tx);
+}

hosted-sdk-demo/src/constants.ts

@@ -8,3 +8,5 @@ export const YT_ADDRESS = '0x04b7fa1e727d7290d6e24fa9b426d0c940283a95';
 
 export const CHAIN_ID = 1;
 export const RECEIVER_ADDRESS = '<RECEVER_ADDRESS>';
+export const ORDER_ID = '<ORDER_ID>'
+export const USER_ADDRESS = '<USER_ADDRESS>'

hosted-sdk-demo/src/helper.ts

@@ -2,6 +2,7 @@ import axios from 'axios';
 import { ethers } from 'ethers';
 
 const HOSTED_SDK_URL = 'https://api-v2.pendle.finance/core/';
+export const LIMIT_ORDER_URL = 'https://api-v2.pendle.finance/limit-order/'
 
 type MethodReturnType<Data> = {
     tx: {

hosted-sdk-demo/src/types.ts

@@ -8,4 +8,37 @@ export type MintSyData = { amountOut: string, priceImpact: number };
 export type RedeemPyData = { amountOut: string, priceImpact: number };
 export type RedeemSyData = { amountOut: string, priceImpact: number };
 export type TransferLiquidityData = { amountLpOut: string; amountYtOut: string, priceImpact: number };
-export type RollOverPtData = { amountPtOut: string, priceImpact: number };
+export type RollOverPtData = { amountPtOut: string, priceImpact: number };
+
+export interface LimitOrderResponse {
+    /** Hash of the order */
+    id: string;
+    /** Signature of order, signed by maker */
+    signature: string;
+    /** Chain id */
+    chainId: number;
+    /** BigInt string of salt */
+    salt: string;
+    /** BigInt string of expiry, in second */
+    expiry: string;
+    /** BigInt string of nonce */
+    nonce: string;
+    /** LimitOrderType { 0 : TOKEN_FOR_PT, 1 : PT_FOR_TOKEN, 2 : TOKEN_FOR_YT, 3 : YT_FOR_TOKEN } */
+    type: 0 | 1 | 2 | 3;
+    /** Token used by user to make order */
+    token: string;
+    /** YT address */
+    yt: string;
+    /** Maker address */
+    maker: string;
+    /** Receiver address */
+    receiver: string;
+    /** BigInt string of making amount, the amount of token if the order is TOKEN_FOR_PT or TOKEN_FOR_YT, otherwise the amount of PT or YT */
+    makingAmount: string;
+    /** BigInt string of remaining making amount, the unit is the same as makingAmount */
+    lnImpliedRate: string;
+    /** BigInt string of failSafeRate */
+    failSafeRate: string;
+    /** Bytes string for permit */
+    permit: string;
+}