# Discover  

Discover new and useful DApps that are mobile-friendly and easy to use. Viewing curated information does not require any special tools, though effecting the way information is ranked will require a web3 wallet, whether that is Status, MetaMask, Trust, Brave or whichever one you prefer.

## Available Scripts

This project is based on Embark v4.0.1, with a few things customised for React. Currently, you'll need to run the app and Embark separately, in different tabs in your terminal. 

**`npm run build`**

Builds the app into the `build` directory.

## Running and building the app

### Step 1 Build the contracts and the embark artifacts

#### Step 1.1 Modify contracts.js
Modify the `config/contracts.js` file in order for embark to deploy and generate for you the correct contracts
Starting from line 76, replace what you have existingly for `MiniMeToken` and `Discover` with

```
MiniMeToken: {
	address: '0x2764b5da3696E3613Ef9864E9B4613f9fA478E75'
},
Discover: { address: '0xc13711209ba3d5b4cbbcb45f7f64643abb267dbd' },
```

If you need to deploy new version of the Discover contract the last line read the part below:

```
MiniMeToken: {
	address: '0x2764b5da3696E3613Ef9864E9B4613f9fA478E75'
},
Discover: {
	args: ['$MiniMeToken'],
},
```

remove any existing `.embark` directory and run `embark run testnet --noserver`. Once all deployments are done

 go to this etherscan address and check the address of the contract you've last deployed and place it in place of `0xc13711209ba3d5b4cbbcb45f7f64643abb267dbd` of the original configuration.

https://ropsten.etherscan.io/address/0x65767f95799109ba028e0397add89b0ef637e444

#### Step 1.2 Fix embark configuration

In embarkjs.js note row 532. If you find `this._ipfsConnection.id()` -> change it to `this._ipfsConnection.version()`
This is needed because Infura's IPFS has deprecated `id` endpoint, but it was used in embark in order to check if the Infura IPFS API is active.. The workaround above do the same as the deprecated functionality.

#### Step 1.3 Generate the embark contract artifacts

Run `embark build --contracts` in order to (re)generate `src/embarkArtifacts/contracts` directory. 

Note your `index.js` file inside. If it is broken (ending by trailing `'` instead of `}`), fix it by replacing the last comma with `}`.
Observe that you find near the beginning of the Discover.js and MiniMeToken.js files the addresses you supplied in Step 1.1

### Step 2. Run the client side app localy.

Run the client side application via `npm run start`.

Open [http://localhost:3000](http://localhost:3000) to view it in the browser. The page will reload if you make edits. You will also see any lint errors in the console.
 
**Important!** If you get `can't establish a connection to a node` error, try to open [http://localhost:3000](http://localhost:3000) in chrome browser.
 
### Step 3 - Run the unit tests

Use `embark test`

Will compile your contracts, with hot-reloading, and let you test them locally to your heart's content. 

### Step 4 - Building for deployment

Run the build procedure via `npm run build`. Once you are done, copy the contents of the build directory, in the `frontend` directory in the branch called `app-deployment`.

## Running slither

`slither . --exclude naming-convention --filter-paths token `

Make sure you get TrailofBits' [latest static analysis tool](https://securityonline.info/slither/), and do your own static analysis on the relevant contracts that will be deployed for Discover.