Merge pull request #24 from Bitcoin-com/burn

Burn method.
Bitcoin-com · Feb 25, 2019 · f196679 · f196679
2 parents e35205e + da6d795
commit f196679
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Showing 6 changed files with 118 additions and 14 deletions.
diff --git a/index.js b/index.js
@@ -15,7 +15,7 @@ const repl = require("repl")
 const SLP = require("./lib/SLP").default
 const clone = require("git-clone")
 
-program.version("2.0.0", "-v, --version")
+program.version("2.1.0", "-v, --version")
 
 program
   .command("new <name>")

diff --git a/lib/TokenType1.js b/lib/TokenType1.js
@@ -258,6 +258,50 @@ var TokenType1 = /** @class */ (function () {
             });
         });
     };
+    TokenType1.prototype.burn = function (burnConfig) {
+        return __awaiter(this, void 0, void 0, function () {
+            var tmpBITBOX_2, getRawTransactions, slpValidator, bitboxNetwork, fundingAddress, bchChangeReceiverAddress, tokenInfo, tokenDecimals, balances, amount, inputUtxos, burnTxid, error_2;
+            var _this = this;
+            return __generator(this, function (_a) {
+                switch (_a.label) {
+                    case 0:
+                        _a.trys.push([0, 4, , 5]);
+                        tmpBITBOX_2 = this.returnBITBOXInstance(burnConfig.fundingAddress);
+                        getRawTransactions = function (txids) { return __awaiter(_this, void 0, void 0, function () {
+                            return __generator(this, function (_a) {
+                                switch (_a.label) {
+                                    case 0: return [4 /*yield*/, tmpBITBOX_2.RawTransactions.getRawTransaction(txids)];
+                                    case 1: return [2 /*return*/, _a.sent()];
+                                }
+                            });
+                        }); };
+                        slpValidator = new slpjs.LocalValidator(tmpBITBOX_2, getRawTransactions);
+                        bitboxNetwork = new slpjs.BitboxNetwork(tmpBITBOX_2, slpValidator);
+                        fundingAddress = addy.toSLPAddress(burnConfig.fundingAddress);
+                        bchChangeReceiverAddress = addy.toSLPAddress(burnConfig.bchChangeReceiverAddress);
+                        return [4 /*yield*/, bitboxNetwork.getTokenInformation(burnConfig.tokenId)];
+                    case 1:
+                        tokenInfo = _a.sent();
+                        tokenDecimals = tokenInfo.decimals;
+                        return [4 /*yield*/, bitboxNetwork.getAllSlpBalancesAndUtxos(fundingAddress)];
+                    case 2:
+                        balances = _a.sent();
+                        amount = new BigNumber(burnConfig.amount).times(Math.pow(10, tokenDecimals));
+                        inputUtxos = balances.slpTokenUtxos[burnConfig.tokenId];
+                        inputUtxos = inputUtxos.concat(balances.nonSlpUtxos);
+                        inputUtxos.forEach(function (txo) { return (txo.wif = burnConfig.fundingWif); });
+                        return [4 /*yield*/, bitboxNetwork.simpleTokenBurn(burnConfig.tokenId, amount, inputUtxos, bchChangeReceiverAddress)];
+                    case 3:
+                        burnTxid = _a.sent();
+                        return [2 /*return*/, burnTxid[0]];
+                    case 4:
+                        error_2 = _a.sent();
+                        return [2 /*return*/, error_2];
+                    case 5: return [2 /*return*/];
+                }
+            });
+        });
+    };
     TokenType1.prototype.returnNetwork = function (address) {
         return addy.detectAddressNetwork(address);
     };

diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "slp-sdk",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "description": "SLP SDK powered by BITBOX",
   "main": "index.js",
   "scripts": {
@@ -30,7 +30,7 @@
   "dependencies": {
     "axios": "^0.17.1",
     "babel-register": "^6.26.0",
-    "bignumber.js": "^7.2.1",
+    "bignumber.js": "^8.0.2",
     "bitbox-sdk": "4.0.0",
     "chalk": "^2.3.0",
     "clear": "0.1.0",
@@ -40,7 +40,7 @@
     "mkdirp": "^0.5.1",
     "node-emoji": "^1.8.1",
     "repl.history": "^0.1.4",
-    "slpjs": "0.13.0",
+    "slpjs": "0.14.0",
     "touch": "^3.1.0"
   },
   "devDependencies": {

diff --git a/src/TokenType1.ts b/src/TokenType1.ts
@@ -8,7 +8,8 @@ import {
   ICreateConfig,
   IMintConfig,
   ISendConfig,
-  IBurnAllConfig
+  IBurnAllConfig,
+  IBurnConfig
 } from "./interfaces/SLPInterfaces"
 
 // import classes
@@ -278,6 +279,50 @@ class TokenType1 {
     }
   }
 
+  async burn(burnConfig: IBurnConfig) {
+    try {
+      let tmpBITBOX: any = this.returnBITBOXInstance(burnConfig.fundingAddress)
+
+      const getRawTransactions = async (txids: any) => {
+        return await tmpBITBOX.RawTransactions.getRawTransaction(txids)
+      }
+
+      const slpValidator: any = new slpjs.LocalValidator(
+        tmpBITBOX,
+        getRawTransactions
+      )
+      const bitboxNetwork = new slpjs.BitboxNetwork(tmpBITBOX, slpValidator)
+      const fundingAddress: string = addy.toSLPAddress(
+        burnConfig.fundingAddress
+      )
+      const bchChangeReceiverAddress: string = addy.toSLPAddress(
+        burnConfig.bchChangeReceiverAddress
+      )
+      const tokenInfo = await bitboxNetwork.getTokenInformation(
+        burnConfig.tokenId
+      )
+      const tokenDecimals = tokenInfo.decimals
+      const balances = await bitboxNetwork.getAllSlpBalancesAndUtxos(
+        fundingAddress
+      )
+      let amount = new BigNumber(burnConfig.amount).times(10 ** tokenDecimals)
+      let inputUtxos = balances.slpTokenUtxos[burnConfig.tokenId]
+
+      inputUtxos = inputUtxos.concat(balances.nonSlpUtxos)
+
+      inputUtxos.forEach((txo: any) => (txo.wif = burnConfig.fundingWif))
+      const burnTxid = await bitboxNetwork.simpleTokenBurn(
+        burnConfig.tokenId,
+        amount,
+        inputUtxos,
+        bchChangeReceiverAddress
+      )
+      return burnTxid[0]
+    } catch (error) {
+      return error
+    }
+  }
+
   returnNetwork(address: string): string {
     return addy.detectAddressNetwork(address)
   }

diff --git a/src/interfaces/SLPInterfaces.ts b/src/interfaces/SLPInterfaces.ts
@@ -41,3 +41,11 @@ export interface IBurnAllConfig {
   tokenId: string
   bchChangeReceiverAddress: string
 }
+
+export interface IBurnConfig {
+  fundingAddress: string
+  fundingWif: string
+  tokenId: string
+  bchChangeReceiverAddress: string
+  amount: number
+}