allowance work corrected

JsClients/ERC20/src/erc20.ts

@@ -193,11 +193,14 @@ class ERC20Client {
     return maybeValue.value().toString();
   }
 
-  public async allowance(owner: string, spender:string) {
+  public async allowance(owner:string, spender:string) {
     try {
-
-      const keyOwner = createRecipientAddress(CLPublicKey.fromHex(owner));
-      const keySpender = createRecipientAddress(CLPublicKey.fromHex(spender));
+      const _spender = new CLByteArray(
+        Uint8Array.from(Buffer.from(spender, "hex"))
+      );
+
+      const keyOwner=new CLKey(new CLAccountHash(Uint8Array.from(Buffer.from(owner, "hex"))));
+      const keySpender = createRecipientAddress(_spender);
       const finalBytes = concat([CLValueParsers.toBytes(keyOwner).unwrap(), CLValueParsers.toBytes(keySpender).unwrap()]);
       const blaked = blake.blake2b(finalBytes, undefined, 32);
       const encodedBytes = Buffer.from(blaked).toString("hex");
@@ -211,7 +214,7 @@ class ERC20Client {
       const maybeValue = result.value().unwrap();
       return maybeValue.value().toString();
     } catch (error) {
-      return "0";
+      return error;
     }
 
   }

JsClients/ERC20/test/installed.ts

@@ -11,6 +11,7 @@ import {
   CLAccountHash,
   CLPublicKeyType,
   Contracts,
+  CLByteArray
 } from "casper-js-sdk";
 
 const { ERC20Events } = constants;
@@ -241,21 +242,19 @@ export const balanceOf = async (contractHash:string, key:string) => {
 
 };
 
-export const allowance = async (contractHash:string, ownerKey:string, spenderkey:string) => {
+export const allowance = async (contractHash:string, ownerkey:string, spenderkey:string) => {
 
   console.log(`... Contract Hash: ${contractHash}`);
 
   // We don't need hash- prefix so i'm removing it
   await erc20.setContractHash(contractHash);
 
- //balanceof
-  let allowance = await erc20.allowance(ownerKey,spenderkey);
+  let allowance = await erc20.allowance(ownerkey,spenderkey);
 
   console.log(`... Allowance: ${allowance}`);
 
   return allowance;
 
 };
-//console.log(KEYS.publicKey);
-//console.log(CLPublicKey.fromHex("015a5b4ae1e1ff10fd610c7d6323d3c331438a81eef7bcd3aa4783f6f264fa3aa4"));
-//allowance("6ab4a5bf100fb9f444a12e92c663e3cf65a8c3ef4523cb2f80bed4fd41f85706","8b217a09296d5ce360847a7d20f623476157c5f022333c4e988a464035cadd80","8a74e1ae230936013f3b544182b8011435f4a457d9444fa879ab483fdf829dc8");
+
+allowance("b761da7d5ef67f8825c30c40df8b72feca4724eb666dba556b0e3f67778143e0","8b217a09296d5ce360847a7d20f623476157c5f022333c4e988a464035cadd80","8a74e1ae230936013f3b544182b8011435f4a457d9444fa879ab483fdf829dc8");