configure hardhat and smart contract

Author: btkcodedev

.gitignore

@@ -34,3 +34,43 @@ yarn-error.log*
 # typescript
 *.tsbuildinfo
 next-env.d.ts
+
+config.json
+
+node_modules
+.env
+
+# Hardhat files
+/cache
+/artifacts
+
+# TypeChain files
+/typechain
+/typechain-types
+
+# solidity-coverage files
+/coverage
+/coverage.json
+
+# Hardhat Ignition default folder for deployments against a local node
+ignition/deployments/chain-31337
+
+node_modules
+.env
+
+# Hardhat files
+/cache
+/artifacts
+
+# TypeChain files
+/typechain
+/typechain-types
+
+# solidity-coverage files
+/coverage
+/coverage.json
+
+# Hardhat Ignition default folder for deployments against a local node
+ignition/deployments/chain-31337
+
+client

contracts/Upload.sol

@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-3.0
+pragma solidity >=0.7.0 <0.9.0;
+
+contract Upload {
+  
+  struct Access{
+     address user; 
+     bool access; //true or false
+  }
+  mapping(address=>string[]) value;
+  mapping(address=>mapping(address=>bool)) ownership;
+  mapping(address=>Access[]) accessList;
+  mapping(address=>mapping(address=>bool)) previousData;
+
+  function add(address _user,string memory url) external {
+      value[_user].push(url);
+  }
+  function allow(address user) external {//def
+      ownership[msg.sender][user]=true; 
+      if(previousData[msg.sender][user]){
+         for(uint i=0;i<accessList[msg.sender].length;i++){
+             if(accessList[msg.sender][i].user==user){
+                  accessList[msg.sender][i].access=true; 
+             }
+         }
+      }else{
+          accessList[msg.sender].push(Access(user,true));  
+          previousData[msg.sender][user]=true;  
+      }
+    
+  }
+  function disallow(address user) public{
+      ownership[msg.sender][user]=false;
+      for(uint i=0;i<accessList[msg.sender].length;i++){
+          if(accessList[msg.sender][i].user==user){ 
+              accessList[msg.sender][i].access=false;  
+          }
+      }
+  }
+
+  function display(address _user) external view returns(string[] memory){
+      require(_user==msg.sender || ownership[_user][msg.sender],"You don't have access");
+      return value[_user];
+  }
+
+  function shareAccess() public view returns(Access[] memory){
+      return accessList[msg.sender];
+  }
+}

hardhat.config.js

@@ -0,0 +1,31 @@
+// require("@nomiclabs/hardhat-waffle");
+
+// module.exports = {
+//   solidity: "0.8.19",
+//   networks: {
+//     hardhat: {
+//       chainId: 1337
+//     },
+//     localhost: {
+//       url: "http://127.0.0.1:8545"
+//     }
+//   },
+//   paths: {
+//     artifacts: "./client/src/artifacts",
+//   },
+// };
+
+require("@nomicfoundation/hardhat-toolbox");
+
+/** @type import('hardhat/config').HardhatUserConfig */
+module.exports = {
+  solidity: "0.8.9",
+  networks: {
+    hardhat: {
+      chainId: 1337,
+    },
+  },
+  paths: {
+    artifacts: "./client/src/artifacts",
+  },
+};