This is a simple, pure Swift implementation of Recursive Length Prefix Encoding, a serialisation method for encoding arbitrarily structured binary data (byte arrays).
RLP Encoding is used in Ethereum. You can read more about it here:
- Ethereum Wiki - RLP
- Ethereum Yellowpaper (Appendix B)
SwiftRLP is available through Swift Package Manager.
Adding SwiftRLP as a dependency is as easy as adding it to the dependencies value of your Package.swift.
dependencies: [
.package(url: "https://github.com/alephao/swift-rlp.git", from: "0.0.6")
],
targets: [
.target(
name: "MyTarget",
dependencies: [
.product(name: "SwiftRLP", package: "swift-rlp")
]
),
]import SwiftRLP
let encoder = RLPEncoder()
// String Encoding
try encoder.encode(.string("dog"))
try encoder.encode(string: "dog")
// Array Encoding
try encoder.encode(.array(["d", "o", "g"]))import SwiftRLP
let encodedData = try RLPEncoder().encode(string: "dog")
let decoder = RLPDecoder()
try decoder.decode(from: encodedData) // RLPValue.string("dog")Currently, the CLI is only available via source code. To use it, clone this repo and run:
$ swift run cli encode dog
> 0x83646F67$ swift run cli decode 0x83646F67
> string("dog")SwiftRLP is released under an MIT license. See LICENSE for more information.