1 files changed, 60 insertions, 0 deletions
diff --git a/packages/contracts/src/utils/token_registry_wrapper.ts b/packages/contracts/src/utils/token_registry_wrapper.ts
new file mode 100644
index 000000000..91bd5503d
--- /dev/null
+++ b/packages/contracts/src/utils/token_registry_wrapper.ts
@@ -0,0 +1,60 @@
+import * as Web3 from 'web3';
+
+import { TokenRegistryContract } from '../contract_wrappers/generated/token_registry';
+
+import { Token } from './types';
+
+export class TokenRegWrapper {
+    private _tokenReg: TokenRegistryContract;
+    constructor(tokenRegContract: TokenRegistryContract) {
+        this._tokenReg = tokenRegContract;
+    }
+    public async addTokenAsync(token: Token, from: string) {
+        const tx = this._tokenReg.addToken.sendTransactionAsync(
+            token.address as string,
+            token.name,
+            token.symbol,
+            token.decimals,
+            token.ipfsHash,
+            token.swarmHash,
+            { from },
+        );
+        return tx;
+    }
+    public async getTokenMetaDataAsync(tokenAddress: string) {
+        const data = await this._tokenReg.getTokenMetaData.callAsync(tokenAddress);
+        const token: Token = {
+            address: data[0],
+            name: data[1],
+            symbol: data[2],
+            decimals: data[3],
+            ipfsHash: data[4],
+            swarmHash: data[5],
+        };
+        return token;
+    }
+    public async getTokenByNameAsync(tokenName: string) {
+        const data = await this._tokenReg.getTokenByName.callAsync(tokenName);
+        const token: Token = {
+            address: data[0],
+            name: data[1],
+            symbol: data[2],
+            decimals: data[3],
+            ipfsHash: data[4],
+            swarmHash: data[5],
+        };
+        return token;
+    }
+    public async getTokenBySymbolAsync(tokenSymbol: string) {
+        const data = await this._tokenReg.getTokenBySymbol.callAsync(tokenSymbol);
+        const token: Token = {
+            address: data[0],
+            name: data[1],
+            symbol: data[2],
+            decimals: data[3],
+            ipfsHash: data[4],
+            swarmHash: data[5],
+        };
+        return token;
+    }
+}