Official Archethic Javascript library for Node and Browser.
npm install archethic
This library aims to provide a easy way to interact with Archethic network.
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect(); // Connect to the endpoint to retrieve the nearest endpoints
console.log(archethic)
{
transaction: ..., // module to manage transaction
account: ..., // module to manage keychains and account
network: ..., // module to fetch information from the network
...
}
Note: archethic.connect()
is useful but not mandatory. In the case of using a website on HTTPS, making a query to a node through HTTP creates a Mixed content issue. To avoid this issue, we can use directly new Archethic(httpsEndpoint)
which will be used as fallback.
If you still want to use the nearest point while being on an HTTPS website, you could call a server endpoint to make the query for you.
Account
Creates a new transaction to build (or update) a keychain by embedding the on-chain encrypted wallet.
keychain
The keychain to createtransactionChainIndex
The index of the transaction created (0 for new keychain)
import Archethic, { Crypto } from "archethic";
const accessSeed = "myseed";
const { publicKey } = Crypto.deriveKeyPair(accessSeed, 0);
const keychain = new Keychain(Crypto.randomSecretKey())
.addService("uco", "m/650'/0/0")
.addAuthorizedPublicKey(publicKey);
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const tx = archethic.account.newKeychainTransaction(keychain, 0);
// The transaction can then be signed with origin private key
import Archethic, { Crypto } from "archethic";
const accessSeed = "myseed";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
let keychain = await archethic.account.getKeychain(accessSeed);
keychain.addService("mywallet", "m/650'/1/0")
// determine the new transaction index
const keychainGenesisAddress = Crypto.deriveAddress(keychain.seed, 0);
const transactionChainIndex = await archethic.transaction.getTransactionIndex(keychainGenesisAddress);
const tx = archethic.account.newKeychainTransaction(keychain, transactionChainIndex);
// The transaction can then be signed with origin private key
Creates a new keychain access transaction to allow a seed and its key to access a keychain
seed
Keychain access's seedkeychainAddress
Keychain's tx address
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.account.newAccessKeychainTransaction("myseed", keychainAddress);
// The transaction can then be signed with origin private key
Retrieve a keychain from the keychain access transaction and decrypt the wallet to retrieve the services associated
seed
Keychain access's seed
import Archethic from "archethic"
const archethic = new Archethic("https://testnet.archethic.net")
await archethic.connect()
const keychain = await archethic.account.getKeychain(accessKeychainSeed)
console.log(keychain)
{
version: 1,
seed: "masterKeychainSeed",
authorizedPublicKeys: [ Uint8Array(34) ],
services: {
uco: {
derivationPath: "m/650'/0/0"
}
}
}
Once retreived the keychain provide the following methods:
Generate address
, previousPublicKey
, previousSignature
of the transaction and
serialize it using a custom binary protocol, based on the derivation path, curve and hash algo of the service given in param.
tx
is an instance ofTransactionBuilder
service
is the service name to use for getting the derivation path, the curve and the hash algoindex
is the number of transactions in the chain, to generate the actual and the next public key (see the cryptography section)suffix
: Additional information to add to a service derivation path (default to empty)
Return is the signed TransactionBuilder
. Notice that the function also sign the TransactionBuilder
given in param, so getting the return is not mandatory
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const keychain = await archethic.account.getKeychain(accessKeychainSeed);
const index = archethic.transaction.getTransactionIndex(
keychain.deriveAddress("uco", 0)
);
/*const signedTx =*/ keychain.buildTransaction(tx, "uco", index);
Derive an address for the given service at the index given
service
: Service name to identify the derivation path to useindex
: Chain index to derive (default to 0)suffix
: Additional information to add to a service derivation path (default to empty)
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const keychain = await archethic.account.getKeychain(accessKeychainSeed);
const genesisUCOAddress = keychain.deriveAddress("uco", 0);
Derive a keypair for the given service at the index given
service
: Service name to identify the derivation path to useindex
: Chain index to derive (default to 0)suffix
: Additional information to add to a service derivation path (default to empty)
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const keychain = await archethic.account.getKeychain(accessKeychainSeed);
const { publicKey } = keychain.deriveKeypair("uco", 0);
Return a Decentralized Identity document from the keychain. (This is used in the transaction's content of the keychain tx)
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const keychain = await archethic.account.getKeychain(accessKeychainSeed);
const did = keychain.toDID()
console.log(did)
{
"@context": [
"https://www.w3.org/ns/did/v1"
],
"id": "did:archethic:keychain_address",
"authentification": servicesMaterials, //list of public keys of the services
"verificationMethod": servicesMaterials //list of public keys of the services
}
Add a service into the keychain
name
: Name of the service to addderivationPath
: Crypto derivation pathcurve
: Elliptic curve to usehashAlgo
: Hash algo
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const keychain = await archethic.account.getKeychain(accessKeychainSeed);
keychain.addService("nft1", "m/650'/1/0")
console.log(keychain)
{
version: 1,
seed: "mymasterseed",
authorizedPublicKeys: [ Uint8Array(34) ],
services: {
uco: {
derivationPath: "m/650'/0/0",
curve: "ed25519",
hashAlgo: "sha256"
},
nft1: {
derivationPath: "m/650'/1/0",
curve: "ed25519",
hashAlgo: "sha256"
}
}
}
Remove a service from the keychain
name
: Name of the service to add
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const keychain = await archethic.account.getKeychain(accessKeychainSeed);
keychain.removeService("nft1");
Authorize a key to access the keychain
publicKey
: The public key (type: Uint8Array)
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const accessSeed = "myseed";
const { publicKey } = Crypto.deriveKeyPair(accessSeed, 0);
const keychain = await archethic.account.getKeychain(accessKeychainSeed);
keychain.addAuthorizedPublicKey(publicKey);
Unauthorized a key to access the keychain
publicKey
: The public key (type: Uint8aArray)
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const accessSeed = "myseed";
const { publicKey } = Crypto.deriveKeyPair(accessSeed, 0);
const keychain = await archethic.account.getKeychain(accessKeychainSeed);
keychain.removeAuthorizedPublicKey(publicKey);
Transactions
To create a new transaction instance to build and to send to the network
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const txBuilder = archethic.transaction.new();
The transaction builder instance contains the following methods:
Define the transaction type
type
is the string defining the type of transaction to generate ("keychain", "keychain_access", "transfer", "hosting", "code_proposal", "code_approval", "token")
Add the code in the data.code
section of the transaction
code
is a string defining the smart contract
Add the content in the data.content
section of the transaction
content
is a string defining the smart contract
Add an ownership in the data.ownerships
section of the transaction with a secret and its related authorized public keys to be able to decrypt it.
This aims to prove the ownership or the delegatation of some secret to a given list of public keys.
secret
is the hexadecimal encoding or Uint8Array representing the encrypted secretauthorizedKeys
is a list of object represented by -publicKey
is the hexadecimal encoding or Uint8Array representing the public key -encryptedSecretKey
is the hexadecimal encoding or Uint8Array representing the secret key encrypted with the public key (seeecEncrypt
)
Add a UCO transfer to the data.ledger.uco.transfers
section of the transaction
to
is hexadecimal encoding or Uint8Array representing the transaction address (recipient) to receive the fundsamount
is the number of uco to send (in Big Int ref functiontoBigInt
)
Add a token transfer to the data.ledger.token.transfers
section of the transaction
to
is hexadecimal encoding or Uint8Array representing the transaction address (recipient) to receive the fundsamount
is the number of uco to send (in Big Int ref functiontoBigInt
)tokenAddress
is hexadecimal encoding or Uint8Array representing the token's address to spendtokenId
is the ID of the token to send (default to: 0)
Add a recipient (for non UCO transfers, ie. smart contract interaction) to the data.recipient
section of the transaction
to
is hexadecimal encoding or Uint8Array representing the transaction address (recipient)
Generate address
, previousPublicKey
, previousSignature
of the transaction and
serialize it using a custom binary protocol.
seed
is hexadecimal encoding or Uint8Array representing the transaction chain seed to be able to derive and generate the keysindex
is the number of transactions in the chain, to generate the actual and the next public key (see below the cryptography section)curve
is the elliptic curve to use for the key generation (can be "ed25519", "P256", "secp256k1") - default o "P256"hashAlgo
is the hash algorithm to use to generate the address (can be "sha256", "sha512", "sha3-256", "sha3-512", "bake2b") - default to "sha256"
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
)
.build("mysuperpassphraseorseed", 0);
Sign the transaction with an origin device private key
privateKey
is hexadecimal encoding or Uint8Array representing the private key to generate the origin signature to able to perform the ProofOfWork and authorize the transaction
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
)
.build("mysuperpassphraseorseed", 0);
.originSign(originPrivateKey);
Export the transaction generated into JSON
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
)
.build("mysuperpassphraseorseed", 0);
.toJSON();
Get an Uint8Array payload to be signed with user seed
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
);
const signaturePayload = tx.previousSignaturePayload();
Setter method for the transaction's previous signature and previous public key.
prevSign
is hexadecimal encoding or Uint8Array previous signature of the transactionprevPubKey
is hexadecimal encoding or Uint8Array previous public key of the transaction
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
);
const signaturePayload = tx.previousSignaturePayload();
const prevSign = someFunctionToGetSignature(signaturePayload);
const prevPubKey = someFunctionToGetPubKey();
tx.setPreviousSignatureAndPreviousPublicKey(prevSign, prevPubKey);
Setter method for the transaction's address.
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
);
const txAddress = someFunctionToGetTxAddress();
tx.setAddress(txAddress);
Get an Uint8Array payload to be signed with the origin private key of the device.
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
)
.build(seed, originPrivateKey);
const originPayload = tx.originSignaturePayload();
Setter method for the transaction's origin signature.
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
)
.build("mysuperpassphraseorseed", 0);
const originPayload = tx.originSignaturePayload();
const originSignature = someFunctionToGetSignature(originPayload);
tx.setOriginSign(originSignature);
confirmationThreshold
is a percentage (0 to 100) where the transaction is considered as validated. This is used to triggerrequiredConfirmation
event. Default value is to 100. This parameter is not mandatorytimeout
ย is the number of second to wait until timeout event is triggered. Default value is to 60 sec. This parameter is not mandatory
Send a transaction to the endpoint and subscribe the node to get confirmation or validation error. When an update of the validation is received from the subscription, some events are triggered and associated function are called (see function on bellow)
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
)
.build("mysuperpassphraseorseed", 0)
.originSign(privateKey)
.on("confirmation", (nbConf, maxConf) => console.log(nbConf, maxConf))
.send();
Subscribe to a specific event.
event
is the name of the event to subscribehandler
is a function which will be called when event is triggered
available events:
'sent'
triggered when transaction is sent. handler param: no parameter'confirmation'
triggered when a new replication is received. handler params: number of replication, maximum number of replication expected'fullConfirmation'
triggered when the number of replication = the number of maximum replication expected. handler param: maximum number of replication expected'requiredConfirmation'
triggered when the number of replication is equal or overpass for the first time the maximum replication * confirmationThreshold. handler param: number of replication'error'
triggered when an error is encountered during validation. handler params: context, reason- Context is a string with "INVALID_TRANSACTION" for error in the transaction itself like "Insufficient funds" or "NETWORK_ISSUE" for error in mining like "Consensus error".
'timeout'
ย triggered 60 sec after sending the transaction. Timeout is cleared when'fullConfirmation'
,'error'
or'requiredConfirmation'
events are triggered. handler param: number of replication received yet
Mutiple function can be assigned to a same event. Just call function on
mutiple times for the same event.
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const tx = archethic.transaction
.new()
.setType("transfer")
.addUCOTransfer(
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646",
0.42
)
.build("mysuperpassphraseorseed", 0)
.originSign(privateKey)
.on("sent", () => console.log("transaction sent !"))
.on("confirmation", (nbConf, maxConf) => console.log(nbConf, maxConf))
.on("fullConfirmation", (nbConf) => console.log(nbConf))
.on("requiredConfirmation", (nbConf) => console.log(nbConf))
.on("error", (context, reason) => console.log(context, reason))
.on("timeout", (nbConf) => console.log(nbConf))
.send(60); // confirmationThreshold: 60
Unsubscribe to a specific event or all events.
event
is the name of the event (same as on function). This parameter is not mandatory, if the event name is empty all events are unsubscribed.
Query a node to find the length of the chain to retrieve the transaction index
address
Transaction address (in hexadecimal)
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const txIndex = await archethic.transaction.getTransactionIndex(
"00b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646"
);
// 0
Query a node to fetch the tx fee for a given transaction
tx
Generated transaction
import Archethic from "archethic"
const archethic = new Archethic("https://testnet.archethic.net")
const tx = ...
const fee = await archethic.transaction.getTransactionFee(tx)
console.log(fee)
{
fee: 11779421, // Big Int format (ref function fromBigInt)
rates: {
eur: 0.086326,
usd: 0.084913
}
}
Query a node to find the ownerships (secrets and authorized keys) to given transaction's address
address
: Transaction's address
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
const ownerships = await archethic.transaction.getTransactionOwnerships(
tx.address
);
console.log(ownerships)[
{
secret: "...",
authorizedPublicKeys: [
{
publicKey: "...",
encryptedSecretKey: "",
},
],
}
];
Network
Query a node to get the token definition (based on AEIP2) from an address.
Returns also genesis
address and id
tokenAddress
is the transaction address of the token.
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const token = await archethic.network.getToken(tokenAddress);
console.log(token);
{
collection: [],
decimals: 8,
genesis: '0000D6979F125A91465E29A12F66AE40FA454A2AD6CE3BB40099DBDDFFAF586E195A',
id: '9DC6196F274B979E5AB9E3D7A0B03FEE3E4C62C7299AD46C8ECF332A2C5B6574',
name: 'Mining UCO rewards',
properties: {},
supply: 3340000000000000, // Big Int format (ref function fromBigInt)
symbol: 'MUCO',
type: 'fungible'
}
Query a node to fetch the last balance of the given address
address
is the address of the account to get the balance from
import Archethic from "archethic"
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect()
const balance = await archethic.network.getBalance(accountAddress);
console.log(balance)
{
uco: 100000000,
tokens: [{
address: '209DFA0C.....',
tokenId: 'ABD829FD.....',
amount: 100000000
}]
}
Query a node to add a new origin public to be authorized to sign transaction with the corresponding private key (see OriginSign).
originPublicKey
is the public key to be added.certificate
is the certificate that prove the public key is allowed to be added.
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const response = await archethic.network.addOriginKey(
originPublicKey,
certificate
);
console.log(response);
{
transaction_address: "...";
status: "pending";
}
Fetch the public key of the shared storage node key
import Archethic from "archethic";
const archethic = new Archethic("https://testnet.archethic.net");
await archethic.connect();
const storageNoncePublicKey =
await archethic.network.getStorageNoncePublicKey();
// 00b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646
Fetch the OracleChain data
timestamp
: UNIX timestamp (optional)
import Archethic from "archethic"
const archethic = new Archethic("https://testnet.archethic.net")
await archethic.connect()
const oracleData = await archethic.network.getOracleData()
console.log(oracleData)
{
timestamp: ...,
services: {
uco: {
eur: ...,
usd: ...
}
}
}
import Archethic from "archethic"
const archethic = new Archethic("https://testnet.archethic.net")
await archethic.connect()
const oracleData = await archethic.network.getOracleData(timestamp)
console.log(oracleData)
{
services: {
uco: {
eur: ...,
usd: ...
}
}
}
Subscribe to get the real time updates of the OracleChain
handler
: Callback to handle the new data
import Archethic from "archethic"
const archethic = new Archethic("https://testnet.archethic.net")
await archethic.connect()
await archethic.network.subscribeToOracleUpdates(console.log)
{
timestamp: ...,
services: {
uco: {
eur: ...,
usd: ...
}
}
}
Cryptography
It supports the Archethic Cryptography rules which are:
-
Algorithm identification: keys are prepared by metadata bytes to indicate the curve used and the origin of the generation, and hashes are prepended by a byte to indicate the hash algorithm used. Those information help during the verification
Ed25519 Software Origin Public key | | | | |-------| | | | |------------------| | | | <<0, 0, 106, 58, 193, 73, 144, 121, 104, 101, 53, 140, 125, 240, 52, 222, 35, 181, 13, 81, 241, 114, 227, 205, 51, 167, 139, 100, 176, 111, 68, 234, 206, 72>> NIST P-256 Software Origin Public key | | | | |---------| | | | |---------------------- | | | <<1, 0, 4, 7, 161, 46, 148, 183, 43, 175, 150, 13, 39, 6, 158, 100, 2, 46, 167, 101, 222, 82, 108, 56, 71, 28, 192, 188, 104, 154, 182, 87, 11, 218, 58, 107, 222, 154, 48, 222, 193, 176, 88, 174, 1, 6, 154, 72, 28, 217, 222, 147, 106, 73, 150, 128, 209, 93, 99, 115, 17, 39, 96, 47, 203, 104, 34>>
-
Key derivation:
To be able to retrieve previous public key, the Archethic network designs the key derivation through a seed (passphrase) and an index(number of previous public keys/transactions). The procedure is described as follows:
The seed generates a master key and an entropy used in the child keys generation. / (256 bytes) Next private key (256 bytes) Master key --> HMAC-512 / Key: Master entropy, seed --> HASH-512 Data: Master key + index) \ (256 bytes) Master entropy
It creates a new keypair into hexadecimal format
seed
is hexadecimal encoding or Uint8Array representing the transaction chain seed to be able to derive and generate the keysindex
is the number of transactions in the chain, to generate the actual and the next public key (see below the cryptography section)curve
is the elliptic curve to use for the key generation (can be "ed25519", "P256", "secp256k1") - default to: "ed25519"
import { Crypto } from "archethic";
const { publicKey: publicKey, privateKey: privateKey } = Crypto.deriveKeyPair(
"mysuperpassphraseorseed",
0
);
// publicKey => 0100048cac473e46edd109c3ef59eec22b9ece9f99a2d0dce1c4ccb31ce0bacec4a9ad246744889fb7c98ea75c0f0ecd60002c07fae92f23382669ca9aff1339f44216
It creates a transaction address by extract the public key from the key derivation and hash it into a hexadecimal format
seed
is hexadecimal encoding or Uint8Array representing the transaction chain seed to be able to derive and generate the keysindex
is the number of transactions in the chain, to generate the actual and the next public key (see below the cryptography section)curve
is the elliptic curve to use for the key generation (can be "ed25519", "P256", "secp256k1") - Default to "ed25519"hashAlgo
is the hash algorithm to create the address (can be "sha256", "sha512", "sha3-256", "sha3-512", "blake2b") - default to "sha256"
import { Crypto } from "archethic";
const address = Crypto.deriveAddress("mysuperpassphraseorseed", 0);
// Address: 00004195d45987f33e5dcb71edfa63438d5e6add655b216acfdd31945d58210fe5d2
It creates a new keypair and extract the public key into hexadecimal format
seed
is hexadecimal encoding or Uint8Array representing the transaction chain seed to be able to derive and generate the keysindex
is the number of transactions in the chain, to generate the actual and the next public key (see below the cryptography section)curve
is the elliptic curve to use for the key generation (can be "ed25519", "P256", "secp256k1")
import { Crypto } from "archethic";
const publicKey = Crypto.derivePublicKey("mysuperpassphraseorseed", 0);
Perform an ECIES encryption using a public key and a data
data
Data to encryptpublicKey
Public key to derive a shared secret and for whom the content must be encrypted
import { Crypto } from "archethic";
const cipher = Crypto.ecEncrypt(
"dataToEncrypt",
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646"
);
Perform an AES encryption using a key and a data
data
Data to encryptkey
Symmetric key
import { Crypto } from "archethic";
const cipher = Crypto.aesEncrypt(
"dataToEncrypt",
"0000b1d3750edb9381c96b1a975a55b5b4e4fb37bfab104c10b0b6c9a00433ec4646"
);
Utils
Convert a big int number to a x decimals number (mainly use to display token amount)
number
Big Int number to convert to decimals numberdecimals
number of decimals needed (default to 8)
import { Utils } from "archethic";
Utils.fromBigInt(1_253_450_000);
// 12.5345
Utils.fromBigInt(12_534_500, 6);
// 12.5345
Convert a decimals number to a BigInt number
number
decimals number to convert to Big Int numberdecimals
number of decimals (default to 8)
import { Utils } from "archethic";
Utils.toBigInt(12.5345);
// 1_253_450_000
Utils.toBigInt(12.5345, 6);
// 12_534_500
Getting the default origin Key :
import Archethic, { Utils } from "archethic"
const originPrivateKey = Utils.originPrivateKey
const archethic = new Archethic("https://testnet.archethic.net")
const tx = archethic.transaction.new()
...
tx.originSign(originPrivateKey)
npm run test
Some examples are present to see how to use the SDK
cd example/keychain
npm run start
cd example/transactionBuilder
npm run start
If you want to leverage React for your DApp, you have to rely on react-app-rewired to avoid errors regarding NodeJS module not accessible in the Webpack build.
You can see how resolve the issues from this article
AGPL3