# Run A Local Test Network

## Download go-u2u

Please check out and clone go-u2u source code:

```
git clone https://github.com/unicornultrafoundation/go-u2u
```

## Scripts

Scripts to run fakenet are located at `demo` folder, it contains these scripts:

* start network: `./start.sh`;
* stop network: `./stop.sh`;
* clean data and logs: `./clean.sh`;

You can specify number of genesis validators by setting N environment variable.

## Balance transfer example

from `demo/` dir

* Start network:

```sh
N=3 ./start.sh
```

* Attach js-console to running node0:

```sh
go run ../cmd/u2u attach http://localhost:4000
```

* Check the balance to ensure that node0 has something to transfer (node0 js-console):

```js
eth.getBalance(eth.accounts[0]);
```

output shows the balance value:

```js
1e+27
```

* Get node1 address:

```sh
go run ../cmd/u2u attach --exec "eth.accounts[0]" http://localhost:4001
```

output shows address:

```js
"0x02aff1d0a9ed566e644f06fcfe7efe00a3261d03"
```

* Transfer some amount from node0 to node1 address as receiver (node0 js-console):

```js
eth.sendTransaction(
	{from: eth.accounts[0], to: "0x02aff1d0a9ed566e644f06fcfe7efe00a3261d03", value:  "1000000000"},
	function(err, transactionHash) {
        if (!err)
            console.log(transactionHash + " success");
    });
```

output shows unique hash of the outgoing transaction:

```js
0x68a7c1daeee7e7ab5aedf0d0dba337dbf79ce0988387cf6d63ea73b98193adfd success
```

* Check the transaction status by its unique hash (js-console):

```sh
eth.getTransactionReceipt("0x68a7c1daeee7e7ab5aedf0d0dba337dbf79ce0988387cf6d63ea73b98193adfd").blockNumber
```

output shows number of block, transaction was included in:

```
174
```

* As soon as transaction is included into a block you will see new balance of both node addresses:

```sh
go run ../cmd/u2u attach --exec "eth.getBalance(eth.accounts[0])" http://localhost:4000
go run ../cmd/u2u attach --exec "eth.getBalance(eth.accounts[0])" http://localhost:4001
```

outputs:

```js
9.99999999978999e+26
1.000000000000001e+27
```


---

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