A Blockchain developer course project. Simple blockchain implementation. Based on Vapor 4.
- Swift 5.6
- Linux or macOS, tested on Ubuntu 20.04 and macOS 13.3.1
- macOS: Install Xcode
- Ubuntu/Debian Linux, install from repository: https://www.swiftlang.xyz/
- Linux or Windows: Download from https://www.swift.org/download/
git clone https://github.com/DimaRU/SwiftyBlockchain
cd SwiftyBlockchain
swift buildStart first node:
swift run Run serve --hostname 127.0.0.1 --port 8080
Start second node
swift run Run serve --hostname 127.0.0.1 --port 8081
| Method | Route | Comment |
|---|---|---|
| GET | / | Check work |
| GET | /chain | Fetch the blockchain |
| GET | /nodes/resolve | Syncronise blockchain |
| GET | /mine | Mining new block |
| POST | /transactions/add | Add new transaction |
| POST | /nodes/register | Register new node in the network |
curl -X GET http://localhost:8080/chain
{
"chain": [
{
"nonce": 100,
"timestamp": 1651744662.377732,
"previous_hash": "1",
"transactions": [
],
"index": 1
}
],
"length": 1
}
curl -X POST http://localhost:8080/transactions/add \
-H 'content-type: application/json' \
-d '{
"sender": "Alice",
"recipient": "Bob",
"amount": 5
}'
Transaction added to Block 2
curl -X GET http://localhost:8080/mine
{
"message": "New Block Mined",
"nonce": 33575,
"previous_hash": "49b04ba15e4c658069d77dd22f8d21fb847a3bba92b92e4a5cdf0cff905e26cb",
"transactions": [
{
"amount": 5,
"recipient": "Bob",
"sender": "Alice"
},
{
"amount": 2,
"recipient": "127.0.0.1:8080",
"sender": ""
}
],
"index": 2
}
curl -X "POST" "http://127.0.0.1:8080/nodes/register" \
-H 'Content-Type: application/json; charset=utf-8' \
-d $'{
"address": "http://127.0.0.1:8081"
}'
{
"message": "New node added",
"nodes": [
"http://127.0.0.1:8081"
]
}
curl -X GET "http://127.0.0.1:8080/nodes/resolve"
{
"message": "Our chain was replaced",
"chain": [
{
"nonce": 100,
"timestamp": 1651697093.6841831,
"previous_hash": "1",
"transactions": [],
"index": 1
},
{
"nonce": 33575,
"timestamp": 1651697144.188246,
"previous_hash": "e790a22b1acd2f7a06efb941c8a6167468dcc5a39d25d72ace8360156f48033d",
"transactions": [
{
"amount": 10,
"recipient": "Bob",
"sender": "Alice"
},
{
"amount": 1,
"recipient": "127.0.0.1:8081",
"sender": "0"
}
],
"index": 2
}
]
}
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