Create your own Ethereum token

web3j.io

Use local geth client

RPC client mode

Java Smart Contract Wrapper

Build and compile

solc

ENS

Ethereum Name Service

Hello, world!

https://www.ethereum.org/greeter

  1. Install ethereum command line tools

Clients

Solidity

Solidity is the major language to develop smart contracts on Ethereum blockchain. The documentation is at https://solidity.readthedocs.io/en/develop/ ##

Editors & IDEs

SWARM

decentralized storage service, like ipfs.

The swarm of Swarm is the collection of nodes of the devp2p network each of which run the bzz protocol on the same network id.

ABI

solc compiler

Events

misc

Whisper: decentralized messaging protocol

geth: command line tools

geth is listening on UDP/TCP port 30303

ps aux |grep geth
lucas            19806  35.5  8.0 558645868 1348204 s001  S+    4:24PM   1:45.52 geth console                                 
lucas            20355   0.0  0.0  4267768    892 s004  S+    4:30PM   0:00.00 grep geth                                      
                                                                           
                

lsof -i -a -p 19806
COMMAND   PID  USER   FD   TYPE            DEVICE SIZE/OFF NODE NAME                                                          
geth    19806 lucas   13u  IPv6 0x9295f2087a46ab9      0t0  UDP *:30303                                                       
geth    19806 lucas   16u  IPv4 0x9295f208ea01d21      0t0  TCP 192.168.1.116:64563->39.107.26.140:61910 (ESTABLISHED)        
geth    19806 lucas   21u  IPv6 0x9295f2082d4f599      0t0  TCP *:30303 (LISTEN)                                              
geth    19806 lucas   28u  IPv4 0x9295f208f6f6101      0t0  TCP 192.168.1.116:63606->ns3066492.ip-79-137-70.eu:30303 (ESTABLIS
HED)                                                                                                                          
geth    19806 lucas   39u  IPv4 0x9295f208ec0e101      0t0  TCP 192.168.1.116:64180->hst-46-166-161-114.balticservers.eu:30303
 (ESTABLISHED)                                                                                                                
geth    19806 lucas   66u  IPv4 0x9295f2082332101      0t0  TCP 192.168.1.116:64552->47.74.5.209:30821 (SYN_SENT)             
geth    19806 lucas   75u  IPv4 0x9295f20823fed21      0t0  TCP 192.168.1.116:64070->47.104.15.188:30303 (ESTABLISHED)        
geth    19806 lucas   88u  IPv4 0x9295f20a183d681      0t0  TCP 192.168.1.116:64559->101.207.224.48:40145 (SYN_SENT)          
                                                                                                                              

Ethereum Network Visualization

http://ethviewer.live/ ethviewer.live

https://ethstats.net/

ethstats.net

0x

mempools

Operations on orders:

TestRPC

➜  0x.js-starter-project git:(master) βœ— yarn testrpc

yarn run v1.5.1
$ testrpc -p 8545 --networkId 50 --db ./0x_testrpc_snapshot -m "${npm_package_config_mnemonic}"