cardano-go is a library for creating go applicactions that interact with the Cardano Blockchain. [WIP]
$ go get github.com/echovl/cardano-go
package main
import (
"fmt"
"github.com/echovl/cardano-go"
"github.com/echovl/cardano-go/blockfrost"
)
func main() {
node := blockfrost.NewNode(cardano.Mainnet, "project-id")
pparams, err := node.ProtocolParams()
if err != nil {
panic(err)
}
fmt.Println(pparams)
}
package main
import (
"fmt"
"github.com/echovl/cardano-go"
"github.com/echovl/cardano-go/crypto"
)
func main() {
txBuilder := cardano.NewTxBuilder(&cardano.ProtocolParams{})
sender, err := cardano.NewAddress("addr")
if err != nil {
panic(err)
}
receiver, err := cardano.NewAddress("addr")
if err != nil {
panic(err)
}
sk, err := crypto.NewPrvKey("addr_sk")
if err != nil {
panic(err)
}
txHash, err := cardano.NewHash32("txhash")
if err != nil {
panic(err)
}
txInput := cardano.NewTxInput(txHash, 0, cardano.NewValue(20e6))
txOut := cardano.NewTxOutput(receiver, cardano.NewValue(10e6))
txBuilder.AddInputs(txInput)
txBuilder.AddOutputs(txOut)
txBuilder.SetTTL(100000)
txBuilder.AddChangeIfNeeded(sender)
txBuilder.Sign(sk)
tx, err := txBuilder.Build()
if err != nil {
panic(err)
}
fmt.Println(tx.Hex())
}
package main
import (
"github.com/echovl/cardano-go"
)
func main() {
txBuilder := cardano.NewTxBuilder(&cardano.ProtocolParams{})
changeAddr, err := cardano.NewAddress("addr")
if err != nil {
panic(err)
}
txBuilder.AddChangeIfNeeded(changeAddr)
}
package main
import (
"fmt"
"github.com/echovl/cardano-go"
"github.com/echovl/cardano-go/blockfrost"
)
func main() {
node := blockfrost.NewNode(cardano.Mainnet, "project-id")
txHash, err := node.SubmitTx(&cardano.Tx{})
if err != nil {
panic(err)
}
fmt.Println(txHash)
}
package main
import "github.com/echovl/cardano-go"
func main() {
txBuilder := cardano.NewTxBuilder(&cardano.ProtocolParams{})
txBuilder.AddAuxiliaryData(&cardano.AuxiliaryData{
Metadata: cardano.Metadata{
0: map[string]interface{}{
"hello": "cardano-go",
},
},
})
}
package main
import (
"github.com/echovl/cardano-go"
"github.com/echovl/cardano-go/crypto"
)
func main() {
txBuilder := cardano.NewTxBuilder(&cardano.ProtocolParams{})
stakeKey, err := crypto.NewPrvKey("stake_sk")
if err != nil {
panic(err)
}
stakeRegCert, err := cardano.NewStakeRegistrationCertificate(stakeKey.PubKey())
if err != nil {
panic(err)
}
txBuilder.AddCertificate(stakeRegCert)
}
package main
import (
"github.com/echovl/cardano-go"
"github.com/echovl/cardano-go/crypto"
)
func main() {
txBuilder := cardano.NewTxBuilder(&cardano.ProtocolParams{})
stakeKey, err := crypto.NewPrvKey("stake_sk")
if err != nil {
panic(err)
}
poolKeyHash, err := cardano.NewHash28("2d6765748cc86efe862f5abeb0c0271f91d368d300123ecedc078ef2")
if err != nil {
panic(err)
}
stakeDelCert, err := cardano.NewStakeDelegationCertificate(stakeKey.PubKey(), poolKeyHash)
if err != nil {
panic(err)
}
txBuilder.AddCertificate(stakeDelCert)
}
package main
import (
"math/big"
"github.com/echovl/cardano-go"
"github.com/echovl/cardano-go/crypto"
)
func main() {
txBuilder := cardano.NewTxBuilder(&cardano.ProtocolParams{})
policyKey, err := crypto.NewPrvKey("policy_sk")
if err != nil {
panic(err)
}
policyScript, err := cardano.NewScriptPubKey(policyKey.PubKey())
if err != nil {
panic(err)
}
policyID, err := cardano.NewPolicyID(policyScript)
if err != nil {
panic(err)
}
newAsset := cardano.NewMint().
Set(
policyID,
cardano.NewMintAssets().
Set(cardano.NewAssetName("cardanogo"), big.NewInt(1e9)),
)
addr, err := cardano.NewAddress("addr")
if err != nil {
panic(err)
}
txHashIn, err := cardano.NewHash32("txhash")
if err != nil {
panic(err)
}
txBuilder.AddInputs(
cardano.NewTxInput(txHashIn, 0, cardano.NewValue(10e6)),
)
txBuilder.AddOutputs(
cardano.NewTxOutput(addr, cardano.NewValueWithAssets(10e6, newAsset.MultiAsset())),
)
txBuilder.AddNativeScript(policyScript)
txBuilder.Mint(newAsset)
}
This package provides a cli cwallet
for wallet management. It supports:
- hierarchical deterministic wallets
- fetching balances
- transfering ADA
cwallet
uses blockfrost as a Node provider. It requires a config file in $XDG_CONFIG_HOME/cwallet.yml
.
Example:
blockfrost_project_id: "project-id"
$ git clone github.com/echovl/cardano-go
$ make && sudo make install
Wallet creation:
$ cwallet new-wallet jhon
mnemonic: various find knee churn bicycle current midnight visit artist help soon flower venture wasp problem
List wallet address:
$ cwallet list-address jhon
PATH ADDRESS
m/1852'/1815'/0'/0/0 addr1vxzfs9dj365gcdmv6dwj7auewf624ghwrtduecu37hrxsyst8gvu2
Send ADA:
$ cwallet transfer echo addr1vxzfs9dj365gcdmv6dwj7auewf624ghwrtduecu37hrxsyst8gvu2 2000000
fd3a7d6e9742fd9ddba2bd1740fa994f5c93a4f59bf88dc5f81d8d7413c5b3a9