Helper utilities for working with CKB transactions from lumos.
The difference between this and @ckb-lumos/base, is that @ckb-lumos/base contains only core definitions, while this module contains utilities used in a framework sense. One example is: you can pretty much use @ckb-lumos/base as a standalone library, while this library integrates more with config module so it knows whether the framework is running under testnet, or mainnet environment.
const { minimalCellCapacity, generateAddress, parseAddress } = require("@ckb-lumos/helpers")
// Get cell minimal capacity.
const result = minimalCellCapacity({
cellOutput: {
capacity: "0x174876e800",
lock: {
args: "0x36c329ed630d6ce750712a477543672adab57f4c",
codeHash:
"0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8",
hashType: "type",
},
type: null,
},
data: "0x",
blockHash: null,
blockNumber: null,
outPoint: null,
})
// result will be 6100000000n shannons.
// Use `generateAddress` to get address from lock script.
const address = generateAddress({
codeHash:
"0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8",
hashType: "type",
args: "0x36c329ed630d6ce750712a477543672adab57f4c",
})
// Then you will get mainnet address "ckb1qyqrdsefa43s6m882pcj53m4gdnj4k440axqdt9rtd", or you can generate testnet address by
const { predefined } = require("@ckb-lumos/config-manager")
const address = generateAddress({
codeHash:
"0x9bd7e06f3ecf4be0f2fcd2188b23f1b9fcc88e5d4b65a8637b17723bbda3cce8",
hashType: "type",
args: "0x36c329ed630d6ce750712a477543672adab57f4c",
}, { config: predefined.AGGRON4 })
// Will get testnet address "ckt1qyqrdsefa43s6m882pcj53m4gdnj4k440axqswmu83".
// Use `parseAddress` to get lock script from an address.
const script = parseAddress("ckb1qyqrdsefa43s6m882pcj53m4gdnj4k440axqdt9rtd")
// TransactionSkeleton <=> Object
// Convert TransactionSkeleton to js object
const obj = transactionSkeletonToObject(txSkeleton)
// then your can write to json file
fs.writeFileSync("your file", JSON.stringify(obj))
// Or convert js object to TransactionSkeleton
// If your object is from json file, make sure `cellProvider` is working properly.
const txSkeleton = objectToTransactionSkeleton(obj)