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IOTEX-284 Simplify README documentation (#612)
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----

Welcome to the official Go implementation of IoTeX protocol! IoTeX is building the next generation of the decentralized
network for IoT powered by scalability- and privacy-centric blockchains. Please refer to
IoTeX [whitepaper](https://iotex.io/academics) for details.
network for IoT powered by scalability- and privacy-centric blockchains. Please refer to IoTeX
[whitepaper](https://iotex.io/academics) for details.

Currently, This repo is of alpha-quality with limited features supported and it is subjected to rapid change. Please
contact us if you intend to run it in production.

## Minimum requirements
## Contact

- Mailing list: [iotex-dev]([email protected])
- IRC: [gitter](https://gitter.im/iotex-dev-community/Lobby)

### Minimum requirements

| Components | Version | Description |
|----------|-------------|-------------|
|[Golang](https://golang.org) | >= 1.11.5 | The Go Programming Language |
| [Golang](https://golang.org) | ≥ 1.11.5 | Go programming language |
| [Dep](https://golang.github.io/dep/) | ≥ 0.5.0 | Dependency management tool, required only when you update dependencies |
| [Protoc](https://developers.google.com/protocol-buffers/) | ≥ 3.6.0 | Protocol buffers, required only when you rebuild protobuf messages |

### Get iotex-core

The easiest way to get iotex-core is to use one of release packages which are available for OSX, Linux on the
[release page](https://github.com/iotexproject/iotex-core/releases). Iotex-core is also distributed via docker image
on [docker hub](https://hub.docker.com/r/iotex/iotex-core).


## Setup Dev Environment
### Build iotex-core from code

Download the code by
```
Expand All @@ -37,200 +49,61 @@ cd iotex-core

Build the project by

```make```

```
make
```

If you need to update the dependency, install Go dependency management tool from
[golang dep](https://github.com/golang/dep). Then, run
If the dependency needs to be updated, run

```dep ensure```
```
dep ensure [--vendor-only]
```

Note: If your Dev Environment is in Ubuntu, you need to export the following Path:

```LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$GOPATH/src/github.com/iotexproject/iotex-core/crypto/lib:$GOPATH/src/github.com/iotexproject/iotex-core/crypto/lib/blslib```
Run unit tests only by

### Run Unit Tests
```make test```

### Reboot
```make reboot``` reboots blockchain from fresh database.

You will see log message output like:
```
2018-08-28T09:54:02-07:00 |INFO| commit a block height=0 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:02-07:00 |INFO| Starting dispatcher iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:02-07:00 |INFO| Starting IotxConsensus scheme iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate scheme=STANDALONE
2018-08-28T09:54:02-07:00 |INFO| start RPC server on 127.0.0.1:4689 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:02-07:00 |INFO| Starting Explorer JSON-RPC server on [::]:14004 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:03-07:00 |INFO| No peer exist to sync with. iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:03-07:00 |INFO| created a new block at="2018-08-28 09:54:03.210120086 -0700 PDT m=+1.047466065" iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:03-07:00 |INFO| created a new block height=1 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y length=1 networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:03-07:00 |INFO| commit a block height=1 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:04-07:00 |INFO| No peer exist to sync with. iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:04-07:00 |INFO| created a new block at="2018-08-28 09:54:04.213299491 -0700 PDT m=+2.050689454" iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:04-07:00 |INFO| created a new block height=2 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y length=1 networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T09:54:04-07:00 |INFO| commit a block height=2 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
```

### Run
```make run``` restarts blockchain with existing database.

You will see log message output like:
```
2018-08-28T10:03:40-07:00 |INFO| Restarting blockchain blockchain height=3 factory height=3 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:40-07:00 |INFO| Starting dispatcher iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:40-07:00 |INFO| Starting IotxConsensus scheme iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate scheme=STANDALONE
2018-08-28T10:03:40-07:00 |INFO| start RPC server on 127.0.0.1:4689 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:40-07:00 |INFO| Starting Explorer JSON-RPC server on [::]:14004 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:41-07:00 |INFO| created a new block at="2018-08-28 10:03:41.17804365 -0700 PDT m=+1.034361469" iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:41-07:00 |INFO| No peer exist to sync with. iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:41-07:00 |INFO| created a new block height=4 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y length=1 networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:41-07:00 |INFO| commit a block height=4 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:42-07:00 |INFO| No peer exist to sync with. iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:42-07:00 |INFO| created a new block at="2018-08-28 10:03:42.175542402 -0700 PDT m=+2.031857345" iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:42-07:00 |INFO| created a new block height=5 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y length=1 networkAddress=127.0.0.1:4689 nodeType=delegate
2018-08-28T10:03:42-07:00 |INFO| commit a block height=5 iotexAddr=io1qyqsyqcy8uhx9jtdc2xp5wx7nxyq3xf4c3jmxknzkuej8y networkAddress=127.0.0.1:4689 nodeType=delegate
```

### Minicluster
```make minicluster``` runs a cluster of 4 delegate nodes with RollDPoS consensus scheme while actions are automatically injected to one of the nodes.

You will see log message output like:
```
2018-10-18T14:23:18-07:00 |INFO| commit a block height=0
2018-10-18T14:23:18-07:00 |INFO| Starting IotxConsensus scheme scheme=ROLLDPOS
2018-10-18T14:23:18-07:00 |INFO| commit a block height=0
2018-10-18T14:23:18-07:00 |INFO| Starting IotxConsensus scheme scheme=ROLLDPOS
2018-10-18T14:23:18-07:00 |INFO| commit a block height=0
2018-10-18T14:23:18-07:00 |INFO| Starting IotxConsensus scheme scheme=ROLLDPOS
2018-10-18T14:23:18-07:00 |INFO| commit a block height=0
2018-10-18T14:23:18-07:00 |INFO| Starting IotxConsensus scheme scheme=ROLLDPOS
2018-10-18T14:23:18-07:00 |INFO| Starting Explorer JSON-RPC server on [::]:14004
2018-10-18T14:23:18-07:00 |INFO| Starting dispatcher
2018-10-18T14:23:18-07:00 |INFO| Starting Explorer JSON-RPC server on [::]:14006
2018-10-18T14:23:18-07:00 |INFO| Starting dispatcher
2018-10-18T14:23:18-07:00 |INFO| Starting Explorer JSON-RPC server on [::]:14005
2018-10-18T14:23:18-07:00 |INFO| Starting dispatcher
2018-10-18T14:23:18-07:00 |INFO| start RPC server on 127.0.0.1:4689
2018-10-18T14:23:18-07:00 |INFO| start RPC server on 127.0.0.1:4691
2018-10-18T14:23:18-07:00 |INFO| start RPC server on 127.0.0.1:4690
2018-10-18T14:23:18-07:00 |INFO| Starting Explorer JSON-RPC server on [::]:14007
2018-10-18T14:23:18-07:00 |INFO| Starting dispatcher
2018-10-18T14:23:18-07:00 |INFO| start RPC server on 127.0.0.1:4692
```

### Deploy w/ Docker Image

```make docker```

## Dev Tools
### Use actioninjector to inject actions
Open one terminal window and run the command below to compile and start the test chain server. (This is optional, just
in case you don't have a node running).
```
make test
```

`make reboot`
Build the docker image by

Open a new terminal window and start running actioninjector.
```
make docker
```

`./bin/actioninjector`
### Run iotex-core

You can use command line flags to customize the injector.
Start (or resume) a standalone server to operate on an blockchain by

```
-injector-config-path=path_of_config_file_of_genesis_transfer_addresses
-chain=id_of_target_chain
-addr=target_address_for_jrpc_connection
-transfer-num=number_of_transfers
-transfer-gas-limit=transfer_gas_limit
-transfer-gas-price=transfer_gas_price
-transfer-payload=transfer_payload
-vote-num=number_of_votes
-vote-gas-limit=vote_gas_limit
-vote-gas-price=vote_gas_price
-execution-num=number_of_executions
-contract=smart_contract_address
-execution-amount=execution_amount
-execution-gas-limit=execution_gas_limit
-execution-gas-price=execution_gas_price
-execution-data=execution_data
-interval=sleeping_interval_in_seconds
-retry-num=maximum_number_of_rpc_retries
-retry-interval=sleeping_interval_between_two_consecutive_rpc_retries_in_seconds
-aps=actions_to_be_injected_per_second_APS_MODE_ONLY
-duration=duration_of_injector_running_in_seconds_APS_MODE_ONLY
-reset-interval=time_interval_to_reset_nonce_counter_in_seconds
```

Default flag values:
* injector-config-path="./tools/actioninjector.v2/gentsfaddrs.yaml"
* chain=1
* addr="127.0.0.1:14004"
* transfer-num=50
* transfer-gas-limit=1000000
* transfer-gas-price=10
* transfer-payload=""
* vote-num=50
* vote-gas-limit=1000000
* vote-gas-price=10
* execution-num=50
* contract="io1pmjhyksxmz2xpxn2qmz4gx9qq2kn2gdr8un4xq"
* execution-amount=0
* execution-gas-limit=1200000
* execution-gas-price=10
* execution-data="2885ad2c"
* interval=5
* retry-num=5
* retry-interval=1
* aps=0
* duration=60
* reset-interval=10

Note: APS is a running mode option which is disabled by default. When aps > 0, APS mode is enabled and the injector alternates to inject transfers and votes within the time frame specified by duration.

### Use addrgen to generate addresses
Open a terminal window and run the command below to start running addrgen.
make run
```

`make build; ./bin/addrgen`

You can use command line flag to customize the address generator.

`-number=numer_of_addresses_to_be_generated`

Default flag value:
* number=10

### Use iotc to query the blockchain
Open a terminal window and run the command below to compile and start the test chain server with the configuration specified in "config_local_delegate.yaml" (This is optional, just in case you don't have a node running).

`make; make run`

Open a new terminal window and run iotc with the following command.
Restart the server from a clean state by

`./bin/iotc [commands] [flags]`
```
make reboot
```

The following is the complete current usage of iotc. More commands will be added in the future.
Note that if your enviroment is in Linux, you need to add the share libraries into `$LD_LIBRARY_PATH` by

```
Usage:
iotc [command] [flags]
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$GOPATH/src/github.com/iotexproject/iotex-core/crypto/lib:$GOPATH/src/github.com/iotexproject/iotex-core/crypto/lib/blslib
```

Available Commands:
balance Returns the current balance of given address
details Returns the details of given account
height Returns the current height of the blockchain
help Help about any command
self Returns this node's address
transfers Returns the transfers associated with a given address
## Contact

Flags:
-h, --help help for iotc
- Mailing list: [iotex-dev]([email protected])
- IRC: [gitter](https://gitter.im/iotex-dev-community/Lobby)
- Bugs: [issues](https://github.com/iotexproject/iotex-core/issues)

Use "iotc [command] --help" for more information about a command.
```

## Contribution
We are glad to have contributors out of the core team; contributions, including (but not limited to) style/bug fixes, implementation of features, proposals of schemes/algorithms, and thorough documentation, are
welcomed. Please refer to our [contribution guideline](https://github.com/iotexproject/iotex-core/blob/master/CONTRIBUTING.md) for more information.
We are glad to have contributors out of the core team; contributions, including (but not limited to) style/bug fixes,
implementation of features, proposals of schemes/algorithms, and thorough documentation, are welcomed. Please refer to
our [contribution guideline](https://github.com/iotexproject/iotex-core/blob/master/CONTRIBUTING.md) for more
information. Development guide documentation is [here](https://github.com/iotexproject/iotex-core/wiki/Developers%27-Guide).

## License
This project is licensed under the [Apache License 2.0](https://github.com/iotexproject/iotex-core/blob/master/LICENSE).
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