feat(SOLNENG-27): add solana buildervault nodejs staking example

.devcontainer/devcontainer.json

@@ -0,0 +1,16 @@
+{
+	"image": "mcr.microsoft.com/devcontainers/universal:2.11.2",
+    //"forwardPorts": [3000],
+    "customizations": {
+      // Configure properties specific to VS Code.
+      "vscode": {
+        // Add the IDs of extensions you want installed when the container is created.
+        "extensions": [
+            "markdown.showPreview",
+            "bierner.markdown-mermaid",
+            "aaron-bond.better-comments",
+            "ms-vscode.go"
+        ]
+      }
+    }
+}

.gitignore

@@ -1,4 +1,7 @@
 *.crt
 *.key
 .vscode
-init
+init
+**/key.txt
+**/.env
+**/node_modules

README.md

@@ -1,58 +1,12 @@
+# Blockdaemon Staking API demos using different wallets and SDKs
 
-## Sample go staking app demo
+This repository contains multiple applications. Below are the links to the individual application folders and their README files.
+To get started, click on the links for installation and usage instructions.
 
+## Solana Staking
+- [Stake deposit from Builder Vault wallet with TypeScript SDK](./solana-staking/buildervault-wallet/nodejs/README.md)
 
-```mermaid
-sequenceDiagram
-    autonumber
-    participant StakeClient as Sample stake<br> client application
-    participant StakeAPI as Stake Intent API
-    participant Blockchain as Blockchain RPC API
-    box Builder Vault
-      participant TSM1 as MPC Wallet <br>(private key share 1)
-      participant TSM2 as MPC Wallet <br>(private key share 2)
-    end
+## Ethereum Staking
+- [Stake deposit from Builder Vault wallet with Golang SDK](./ethereum-staking/buildervault-wallet/golang/README.md)
+- [Stake deposit from Builder Vault wallet with TypeScript SDK](./ethereum-staking/buildervault-wallet/nodejs/README.md)
 
-    StakeClient ->> StakeAPI: get StakeIntent unsigned tx data <br>(amount, withdrawal & recipient address)
-    StakeClient ->> Blockchain: get blockchain inputs (gas, nonce) for new tx<br>(sender wallet)
-    StakeClient ->> StakeClient: construct unsigned tx
-    StakeClient ->> TSM1: request signature (unsigned tx)
-    TSM1 -->> StakeClient: return partial signature
-    StakeClient ->> TSM2: request signature (unsigned tx)
-    TSM2 -->> StakeClient: return partial signature
-    StakeClient ->> StakeClient: combine partial signatures
-    StakeClient ->> Blockchain: broadcast signed tx<br>(signed tx, deposit contract)
-```
-
-<!--
-
-# Get Plans
-http -b GET https://svc.blockdaemon.com/boss/v1/plans \
-  X-API-KEY:$STAKE_API_KEY
-
-# Post Intent
-http -b POST https://svc.blockdaemon.com/boss/v1/ethereum/holesky/stake-intents \
-  X-API-KEY:$STAKE_API_KEY \
-  accept:application/json \
-  content-type:application/json \
-  stakes:='[{"amount":"32000000000","withdrawal_address":"0x00000000219ab540356cBB839Cbe05303d7705Fa","fee_recipient":"0x93247f2209abcacf57b75a51dafae777f9dd38bc"}]'
-
-# Get Intents
-http -b GET https://svc.blockdaemon.com/boss/v1/stake-intents?protocols=ethereum&networks=holesky \
-  X-API-KEY:$STAKE_API_KEY 
-```
-
-sequenceDiagram
-    autonumber
-    participant StakeClient as Sample stake<br> client application
-    participant StakeAPI as Stake Intent API
-    participant Blockchain as Blockchain
-    participant TSM as Sender Wallet Vault<br>(private key)
-
-    StakeClient ->> StakeAPI: get StakeIntent unsigned tx data <br>(amount, withdrawal & recipient address)
-    StakeClient ->> Blockchain: get blockchain inputs for new tx<br>(gas fee, chainID, sender wallet nonce)
-    StakeClient ->> StakeClient: construct unsigned tx
-    StakeClient ->> TSM: request signature of unsigned tx
-    TSM ->> StakeClient: return tx signature
-    StakeClient ->> Blockchain: broadcast signed tx<br>(signed tx, deposit contract)
---!>

ethereum-staking/buildervault-wallet/golang/README.md

@@ -0,0 +1,58 @@
+
+## Sample go staking app demo
+
+
+```mermaid
+sequenceDiagram
+    autonumber
+    participant StakeClient as Sample stake<br> client application
+    participant StakeAPI as Stake Intent API
+    participant Blockchain as Blockchain RPC API
+    box Builder Vault
+      participant TSM1 as MPC Wallet <br>(private key share 1)
+      participant TSM2 as MPC Wallet <br>(private key share 2)
+    end
+
+    StakeClient ->> StakeAPI: get StakeIntent unsigned tx data <br>(amount, withdrawal & recipient address)
+    StakeClient ->> Blockchain: get blockchain inputs (gas, nonce) for new tx<br>(sender wallet)
+    StakeClient ->> StakeClient: construct unsigned tx
+    StakeClient ->> TSM1: request signature (unsigned tx)
+    TSM1 -->> StakeClient: return partial signature
+    StakeClient ->> TSM2: request signature (unsigned tx)
+    TSM2 -->> StakeClient: return partial signature
+    StakeClient ->> StakeClient: combine partial signatures
+    StakeClient ->> Blockchain: broadcast signed tx<br>(signed tx, deposit contract)
+```
+
+<!--
+
+# Get Plans
+http -b GET https://svc.blockdaemon.com/boss/v1/plans \
+  X-API-KEY:$STAKE_API_KEY
+
+# Post Intent
+http -b POST https://svc.blockdaemon.com/boss/v1/ethereum/holesky/stake-intents \
+  X-API-KEY:$STAKE_API_KEY \
+  accept:application/json \
+  content-type:application/json \
+  stakes:='[{"amount":"32000000000","withdrawal_address":"0x00000000219ab540356cBB839Cbe05303d7705Fa","fee_recipient":"0x93247f2209abcacf57b75a51dafae777f9dd38bc"}]'
+
+# Get Intents
+http -b GET https://svc.blockdaemon.com/boss/v1/stake-intents?protocols=ethereum&networks=holesky \
+  X-API-KEY:$STAKE_API_KEY 
+```
+
+sequenceDiagram
+    autonumber
+    participant StakeClient as Sample stake<br> client application
+    participant StakeAPI as Stake Intent API
+    participant Blockchain as Blockchain
+    participant TSM as Sender Wallet Vault<br>(private key)
+
+    StakeClient ->> StakeAPI: get StakeIntent unsigned tx data <br>(amount, withdrawal & recipient address)
+    StakeClient ->> Blockchain: get blockchain inputs for new tx<br>(gas fee, chainID, sender wallet nonce)
+    StakeClient ->> StakeClient: construct unsigned tx
+    StakeClient ->> TSM: request signature of unsigned tx
+    TSM ->> StakeClient: return tx signature
+    StakeClient ->> Blockchain: broadcast signed tx<br>(signed tx, deposit contract)
+--!>

main.go → ethereum-staking/buildervault-wallet/golang/main.go

@@ -16,7 +16,6 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethclient"
-	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/ethereum/go-ethereum/rpc"
 	"gitlab.com/Blockdaemon/go-tsm-sdkv2/tsm" // Builder Vault MPC SDK for wallet management
 	"golang.org/x/sync/errgroup"
@@ -129,7 +128,13 @@ func craftTx(client *ethclient.Client, ethereumSenderAddress string, contractAdd
 		Data:      common.FromHex(txData),
 	})
 
-	fmt.Println("\nCrafted unsigned transaction:\n", "Nonce:", unsignedTx.Nonce(), "\n GasFeeCap:", unsignedTx.GasFeeCap(), "\n Gas:", unsignedTx.Gas(), "\n To:", unsignedTx.To().String(), "\n Value:", unsignedTx.Value())
+	fmt.Println("\nCrafted unsigned transaction values:\n", "Nonce:", unsignedTx.Nonce(), "\n GasFeeCap:", unsignedTx.GasFeeCap(), "\n Gas:", unsignedTx.Gas(), "\n To:", unsignedTx.To().String(), "\n Value amount:", unsignedTx.Value(), "\n Hash:", unsignedTx.Hash())
+
+	raw, err := unsignedTx.MarshalBinary()
+	if err != nil {
+		panic(err)
+	}
+	fmt.Printf("\nCrafted unsigned transaction (hex encoded): 0x%x", raw)
 
 	// create a NewLondonSigner for EIP 1559 transactions
 	signer := types.NewLondonSigner(chainID)
@@ -193,7 +198,7 @@ func signTx(unsignedTxHash []byte) []byte {
 	copy(sigBytes[0:32], signature.R())
 	copy(sigBytes[32:64], signature.S())
 	sigBytes[64] = byte(signature.RecoveryID())
-	fmt.Println("\nTransaction signature:\n", hex.EncodeToString(sigBytes))
+	fmt.Println("\n\nTransaction signature (hex encoded):\n", hex.EncodeToString(sigBytes))
 
 	return sigBytes
 }
@@ -206,11 +211,11 @@ func sendTx(client *ethclient.Client, chainID *big.Int, unsignedTx *types.Transa
 		panic(err)
 	}
 
-	raw, err := rlp.EncodeToBytes(signedTx)
+	raw, err := signedTx.MarshalBinary()
 	if err != nil {
 		panic(err)
 	}
-	fmt.Printf("\nSigned raw transaction: 0x%x", raw)
+	fmt.Printf("\nSigned raw transaction (RLP encoded): 0x%x", raw)
 
 	err = client.SendTransaction(context.Background(), signedTx)
 	if err != nil {

ethereum-staking/buildervault-wallet/nodejs/.env.example

@@ -0,0 +1,6 @@
+# Blockdaemon Stake
+BLOCKDAEMON_API_KEY=
+BLOCKDAEMON_STAKE_API_KEY=
+ETHEREUM_NETWORK=holesky  # mainnet | holesky
+ETHEREUM_WITHDRAWAL_ADDRESS=
+PLAN_ID=            # Optional. If provided, will use a specific validator plan.

ethereum-staking/buildervault-wallet/nodejs/README.md

@@ -0,0 +1,66 @@
+
+# Ethereum staking on Testnet with Builder Vault wallet
+
+```mermaid
+sequenceDiagram
+    autonumber
+    participant StakeClient as Sample stake<br> client application
+    participant StakeAPI as Stake Intent API
+    participant Blockchain as Blockchain RPC API
+    box Builder Vault
+      participant TSM1 as MPC Wallet <br>(private key share 1)
+      participant TSM2 as MPC Wallet <br>(private key share 2)
+    end
+
+    StakeClient ->> StakeAPI: get StakeIntent unsigned tx data <br>(amount, withdrawal & recipient address)
+    StakeClient ->> Blockchain: get blockchain inputs (gas, nonce) for new tx<br>(sender wallet)
+    StakeClient ->> StakeClient: construct unsigned tx
+    StakeClient ->> TSM1: request signature (unsigned tx)
+    TSM1 -->> StakeClient: return partial signature
+    StakeClient ->> TSM2: request signature (unsigned tx)
+    TSM2 -->> StakeClient: return partial signature
+    StakeClient ->> StakeClient: combine partial signatures
+    StakeClient ->> Blockchain: broadcast signed tx<br>(signed tx, deposit contract)
+```
+
+### Prerequisites
+  - [Node.js](https://nodejs.org/en/download/package-manager) or use [code-spaces](https://codespaces.new/Blockdaemon/demo-buildervault-stakingAPI?quickstart=1)
+  - Register for a demo Builder Vault tenant: https://www.blockdaemon.com/get-started/builder-vault-sandbox-registration
+    - Download SDK bundle provided in registration email (extract authentication certificates)
+    - Place Builder Vault authentication certificate key-pair `client.crt` & `client.key` in this nodejs folder
+  - Register for free Blockdaemon [RPC API key](https://docs.blockdaemon.com/reference/get-started-rpc#step-1-sign-up-for-an-api-key) and set in .env as BLOCKDAEMON_API_KEY
+  - Register for free Blockdaemon [Staking API key](https://docs.blockdaemon.com/reference/get-started-staking-api#step-1-sign-up-for-an-api-key) and set in .env as BLOCKDAEMON_STAKE_API_KEY
+  - Speak to your CSM about getting credentials to the Blockdaemon nexus.sepior.net repo for the nodejs SDK.
+
+### Step 1. Set environment variables in .env
+```shell
+cd ethereum-staking/buildervault-wallet/nodejs/
+cp .env.example .env
+```
+- update .env with API keys
+
+### Step 2. Install package dependancies
+- replace NEXUS_USERNAME & NEXUS_PASSWORD with credential provided by your CSM
+```shell
+npm config set @sepior:registry=https://nexus.sepior.net/repository/sepior-nodejs-tsm-sdk-group/
+npm config set //nexus.sepior.net/repository/sepior-nodejs-tsm-sdk-group/:username=NEXUS_USERNAME
+npm config set //nexus.sepior.net/repository/sepior-nodejs-tsm-sdk-group/:\_password=`echo -n 'NEXUS_PASSWORD' | base64`
+npm install
+```
+
+### Step 3. Launch ethereum-stake-bv.ts to auto-create the Builder Vault wallet address on first run
+```shell
+npm run start ethereum-stake-bv.ts
+```
+- note, on first run this step will fail as the wallet address has no funds
+- copy the new Ethereum wallet address and fund the account
+
+### Step 4. Fund the new Ethereum wallet address with 33 ETH using faucets below
+  - https://holesky-faucet.pk910.de/#/
+
+### Step 5. Launch ethereum-stake-bv.ts to generate the Stake Intent request, sign the request with BuilderVault and broadcast the transaction
+```shell
+npm run start ethereum-stake-bv.ts
+```
+- (optional) decode the raw unsigned transaction to inspect the Blockdaemon provided attributes (https://rawtxdecode.in)
+- observe the confirmed transaction through the generated blockexplorer link