Add support for eth private key

.github/workflows/cd-dashboard-element-ropsten.yml

@@ -23,6 +23,7 @@ env:
   ETHEREUM_RPC_URL: ${{ secrets.ETHEREUM_RPC_URL }}
   ETHEREUM_PROVIDER: ${{ secrets.ETHEREUM_PROVIDER }}
   ETHEREUM_MNEMONIC: ${{ secrets.ETHEREUM_MNEMONIC }}
+  ETHEREUM_PRIVATE_KEY: ${{ secrets.ETHEREUM_PRIVATE_KEY }}
 
 jobs:
   deploy:
@@ -66,5 +67,6 @@ jobs:
             --set-env-vars ETHEREUM_RPC_URL="${{ env.ETHEREUM_RPC_URL }}" \
             --set-env-vars ETHEREUM_PROVIDER="${{ env.ETHEREUM_PROVIDER }}" \
             --set-env-vars ETHEREUM_MNEMONIC="${{ env.ETHEREUM_MNEMONIC }}" \
+            --set-env-vars ETHEREUM_PRIVATE_KEY="${{ env.ETHEREUM_PRIVATE_KEY }}" \
             --service-account "${{ env.GCP_RUNNER_SA }}" \
             --quiet

packages/dashboard/.env.ropsten.example

@@ -13,4 +13,5 @@ ELEMENT_CONTENT_ADDRESSABLE_STORE_SERVICE_URI=''
 ELEMENT_ANCHOR_CONTRACT="0x920b7DEeD5CdE055260cdDBD70C000Bbd5b30997"
 ETHEREUM_RPC_URL=''
 ETHEREUM_PROVIDER=$ETHEREUM_RPC_URL
-ETHEREUM_MNEMONIC="your mnemonic phrase here"
+ETHEREUM_MNEMONIC="your mnemonic phrase here"
+ETHEREUM_PRIVATE_KEY="your private key here (will be ignored if ETHEREUM_MNEMONIC is provided)"

packages/dashboard/config/index.ts

@@ -16,6 +16,7 @@ export const config: any = {
     process.env.ELEMENT_CONTENT_ADDRESSABLE_STORE_SERVICE_URI,
   ethereumRpcUrl: process.env.ETHEREUM_RPC_URL,
   ethereumMnemonic: process.env.ETHEREUM_MNEMONIC,
+  ethereumPrivateKey: process.env.ETHEREUM_PRIVATE_KEY,
   elementAnchorContract: process.env.ELEMENT_ANCHOR_CONTRACT,
   awsCredentials: {
     region: process.env.AWS_DEFAULT_REGION,
@@ -70,6 +71,7 @@ export const elementNodeConfigs = {
   ],
   elementAnchorContract: config.elementAnchorContract,
   ethereumMnemonic: config.ethereumMnemonic,
+  ethereumPrivateKey: config.ethereumPrivateKey,
 };
 
 export const photonNodeConfigs = {

packages/dashboard/docker-compose.run.yml

@@ -15,6 +15,7 @@ services:
       - ETHEREUM_RPC_URL=${ETHEREUM_RPC_URL}
       - ETHEREUM_PROVIDER=${ETHEREUM_PROVIDER}
       - ETHEREUM_MNEMONIC=${ETHEREUM_MNEMONIC}
+      - ETHEREUM_PRIVATE_KEY=${ETHEREUM_PRIVATE_KEY}
       - S3_BUCKET_NAME=${S3_BUCKET_NAME}
       - QLDB_LEDGER=${QLDB_LEDGER}
       - QLDB_LEDGER_TABLE=${QLDB_LEDGER_TABLE}

packages/dashboard/docs/deploy-to-gcp.md

@@ -52,6 +52,7 @@ The following environment variables are needed to run the node, we set them for
 - ETHEREUM_RPC_URL: URL to use to connect to ethereum network
 - ETHEREUM_PROVIDER: Same as RPC URL
 - ETHEREUM_MNEMONIC: The mnemonic to use to associate an ethereum account with for the transactions, see [Metamask term](https://docs.metamask.io/guide/common-terms.html#mnemonic-phrase-seed-phrase-seed-words) and [Metamask guide](https://metamask.zendesk.com/hc/en-us/articles/360015290032-How-to-reveal-your-Secret-Recovery-Phrase)
+- ETHEREUM_PRIVATE_KEY: The private key associated with the funded Ethereum address (will be ignored if ETHEREUM_MNEMONIC is provided)
 
 Other useful GCP CLI commands:
 
@@ -100,4 +101,4 @@ gcloud beta run domain-mappings create --service <service-name> --domain <custom
 # Domain creation and mapping takes a while, this command can be used to check the status of the domain
 gcloud beta run domain-mappings describe --domain <custom-domain>
 ```
-Once the changes propagate you will be able to go to the custom domain.
+Once the changes propagate you will be able to go to the custom domain.

packages/did-method-element/docs/local-element-ropsten-install.md

@@ -209,8 +209,9 @@ To use this service, you must edit the environment variable in the Sidetree.js
 repository before starting the Sidetree-Element service. Specifically we want
 to set `MONGO_DB_CONNECTION_STRING` and `ELEMENT_CONTENT_ADDRESSABLE_STORE_SERVICE_URI`
 to use the services running on localhost. For `ETHEREUM_RPC_URL` we want to
-provide our API url and key. And on `ETHEREUM_MNEMONIC` we will need to provide
-the mnemonic phrase for a minimally funded wallet to use the service.
+provide our API url and key. And on `ETHEREUM_MNEMONIC` / `ETHEREUM_PRIVATE_KEY` we
+will need to provide the mnemonic phrase or private key for a minimally funded wallet
+to use the service.
 
 ```
 $ cd /home/ubuntu/sidetree.js/packages/dashboard
@@ -232,6 +233,7 @@ ELEMENT_ANCHOR_CONTRACT="0x920b7DEeD5CdE055260cdDBD70C000Bbd5b30997"
 ETHEREUM_RPC_URL='https://ropsten.infura.io/v3/[YOUR_PROJECT_API_KEY]'
 ETHEREUM_PROVIDER=$ETHEREUM_RPC_URL
 ETHEREUM_MNEMONIC='[YOUR_MNEMONIC_PHRASE]'
+ETHEREUM_PRIVATE_KEY='[YOUR_PRIVATE_KEY]'
 --- End Contents
 ```
 

packages/did-method-element/src/provider.ts

@@ -22,6 +22,7 @@ export type ElementNodeConfigs = {
   ];
   elementAnchorContract?: string;
   ethereumMnemonic?: string;
+  ethereumPrivateKey?: string;
 };
 
 const getLedger = async (elementNodeConfigs: ElementNodeConfigs) => {
@@ -34,6 +35,12 @@ const getLedger = async (elementNodeConfigs: ElementNodeConfigs) => {
       providerOrUrl: elementNodeConfigs.ethereumRpcUrl,
     });
     web3 = new Web3(provider);
+  } else if (elementNodeConfigs.ethereumPrivateKey) {
+    const provider = new HDWalletProvider({
+      privateKeys: [elementNodeConfigs.ethereumPrivateKey],
+      providerOrUrl: elementNodeConfigs.ethereumRpcUrl,
+    });
+    web3 = new Web3(provider);
   }
   const ledger = new EthereumLedger(
     web3,