clean up

contracts/StoreHash.sol

@@ -1,20 +1,15 @@
-pragma solidity ^0.4.17;
 
+//0xb84b12e953f5bcf01b05f926728e855f2d4a67a9  contract address on rinkeby
+//deployed using remix 
 
 contract Contract {
-      string ipfsHash;
-      address public sender;
-
-    function sendHash(string x) public {
-        ipfsHash = x;
-    }
-    function notary() {
-        sender = msg.sender;
-    }
-
-    function getHash() public view returns (string x) {
-        return ipfsHash;
-    }
+ string ipfsHash;
+
+ function sendHash(string x) public {
+   ipfsHash = x;
+ }
 
-}
-//0x2cccd6e8269f0080a094ae8ccf17db93528ca0cd contract address
+ function getHash() public view returns (string x) {
+   return ipfsHash;
+ }
+}

src/App.css

@@ -22,7 +22,7 @@
 .App-intro {
   font-size: large;
 }
-/*some css to I added*/
+/*some css I added*/
 input[type="file"] {
     display: inline-block;
 }

src/App.js

@@ -40,8 +40,8 @@ class App extends Component {
         this.setState({blockNumber:"waiting.."});
         this.setState({gasUsed:"waiting..."});
 
-        //get Transaction Receipt in console on click
-        //See: https://web3js.readthedocs.io/en/1.0/web3-eth.html#gettransactionreceipt
+        // get Transaction Receipt in console on click
+        // See: https://web3js.readthedocs.io/en/1.0/web3-eth.html#gettransactionreceipt
         await web3.eth.getTransactionReceipt(this.state.transactionHash, (err, txReceipt)=>{
           console.log(err,txReceipt);
           this.setState({txReceipt});
@@ -68,6 +68,7 @@ class App extends Component {
       this.setState({ethAddress});
 
       //save document to IPFS,return its hash#, and set hash# to state
+      //https://github.com/ipfs/interface-ipfs-core/blob/master/SPEC/FILES.md#add 
       await ipfs.add(this.state.buffer, (err, ipfsHash) => {
         console.log(err,ipfsHash);
         //setState by setting ipfsHash to ipfsHash[0].hash 

src/storehash.js

@@ -1,23 +1,10 @@
 import web3 from './web3';
 
-//access our local copy to contract deployed on rinkeby
-const address = '0x2cccd6e8269f0080a094ae8ccf17db93528ca0cd';
-
+//access our local copy to contract deployed on rinkeby testnet
+//use your own contract address
+const address = '0xb84b12e953f5bcf01b05f926728e855f2d4a67a9';
+//use the ABI from your contract
 const abi = [
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "sender",
-    "outputs": [
-      {
-        "name": "",
-        "type": "address"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
   {
     "constant": true,
     "inputs": [],
@@ -32,15 +19,6 @@ const abi = [
     "stateMutability": "view",
     "type": "function"
   },
-  {
-    "constant": false,
-    "inputs": [],
-    "name": "notary",
-    "outputs": [],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
   {
     "constant": false,
     "inputs": [
@@ -56,6 +34,4 @@ const abi = [
     "type": "function"
   }
 ]
-
-export default new web3.eth.Contract(abi, address);
-//export {abi, address};
+export default new web3.eth.Contract(abi, address);