README.md

Blockchain Visualization

P5JS Visualization for Golang Blockchain

Features

1. Proof of Work
2. Asynchronous Peer-to-Peer Communcation & Discovery
3. P5JS Web Visualization of Blockchain Network

Dependencies

import (
	"bytes"
	"crypto/sha256"
	"encoding/binary"
	"encoding/gob"
	"encoding/hex"
	"encoding/json"
	"fmt"
	"html/template"
	"io"
	"io/ioutil"
	"log"
	"math"
	"math/big"
	"net"
	"net/http"
	"os"
	"strconv"
	"strings"
	"sync"
	"time"

	"github.com/davecgh/go-spew/spew"
	"github.com/gorilla/mux"
	"github.com/spf13/pflag"
)

Usage:

Note: Though the program is scalable, to showcase the functions of the program, currently 2 docker peers are created for p2p.

• -h, --host string binding host (default (Outbound Host IP))
• -p, --port int binding port (default 4444)
• -w, --webport int web server port (default 8000)

---

1. Docker

make    # To build docker containers

      Using two terminals, exec "make run*" to access bash on built docker images

• Terminal 1

admin$ make run1
# Access bash on blockchain-vis_run1_1 with exposed ports 4444 and 8000
run1$ ./blockchain-vis

• Terminal 2

admin$ make run2
# Access bash on blockchain-vis_run2_1 with exposed ports 4444 and 8000
run2$ ./blockchain-vis (ip of run1):4444

---

2. Build local binary

make local

---

P5JS Web Visualizations

Note: Limited to work only on localhost

Default port: 8000

Access web server through http://localhost:(port)/web/

Adding to Blockchain

• cURL

curl -d '{"Data":"(transaction_data)"}' http://(ip):(port)/

• Web Server
  • Hover on nodes to show node properties
  • Posts using textbox input (localhost only)
  • Reloads if POST response is invalid