refactor: update environment variable placeholders in .env.example

Author: zkfriendly

packages/relayer/.env.example

@@ -1,31 +1,31 @@
-CORE_CONTRACT_ADDRESS=0xeA1001AE28da904744fdd5167A4EbF1f2f546fab # Address of the deployed wallet contract, default for base sepolia
-PRIVATE_KEY=                      # Private key for Relayer's account.
-CHAIN_RPC_PROVIDER=https://base-sepolia.g.alchemy.com/v2/<alchemy-api-key>
-CHAIN_RPC_EXPLORER=https://base-sepolia.blockscout.com/
-CHAIN_ID=84532                    # Chain ID of the testnet.
+CORE_CONTRACT_ADDRESS= # Address of the deployed wallet contract
+PRIVATE_KEY= # Private key for Relayer's account.
+CHAIN_RPC_PROVIDER=
+CHAIN_RPC_EXPLORER=
+CHAIN_ID=
 
 CANISTER_ID=fxmww-qiaaa-aaaaj-azu7a-cai
 PEM_PATH=./.ic.pem
 IC_REPLICA_URL=https://a4gq6-oaaaa-aaaab-qaa4q-cai.raw.icp0.io/?id=fxmww-qiaaa-aaaaj-azu7a-cai
 WALLET_CANISTER_ID=
 
 
-ERROR_EMAIL_ADDRESSES=[email protected] # change this to your email address
-RELAYER_EMAIL_ADDR=[email protected] # change this to your email address
-RELAYER_HOSTNAME="gmail.com"
+ERROR_EMAIL_ADDRESSES= # change this to your email address
+RELAYER_EMAIL_ADDR= # change this to your email address
+RELAYER_HOSTNAME=
 
-SMTP_SERVER=http://localhost:3000/api/sendEmail
-DATABASE_URL= "postgres://emailWallet:emailWallet_password@localhost:5432/emailWallet"
+SMTP_SERVER=<host>/api/sendEmail
+DATABASE_URL=
 PROVER_ADDRESS=https://zkemail--email-wallet-relayer-v1-2-0-flask-app.modal.run/
 SUBGRAPH_URL=https://gateway-arbitrum.network.thegraph.com/api/[api-key]/subgraphs/id/AFNg1WfLo4dv1tfixaKCvWTVnFGEsVhVKx2Kef1dbt9G # Please replace [api-key] with your TheGraph API key
 
-FEE_PER_GAS=0        # Fee per gas in wei.
+FEE_PER_GAS=0 # Fee per gas in wei.
 WEB_SERVER_ADDRESS="0.0.0.0:4500"
-CIRCUITS_DIR_PATH=../circuits  #Path to email-wallet/packages/circuits
-INPUT_FILES_DIR_PATH=./input_files/  #Path to email-wallet/packages/relayer/input_files
-EMAIL_TEMPLATES_PATH=./eml_templates/  #Path to email templates, e.g. ./packages/relayer/eml_templates/
+CIRCUITS_DIR_PATH=../circuits #Path to email-wallet/packages/circuits
+INPUT_FILES_DIR_PATH=./input_files/ #Path to email-wallet/packages/relayer/input_files
+EMAIL_TEMPLATES_PATH=./eml_templates/ #Path to email templates, e.g. ./packages/relayer/eml_templates/
 
-ONBOARDING_TOKEN_ADDR=0x12Cee57B10AadAb156F61F757Aaf61FeE7d5f0Cb
+ONBOARDING_TOKEN_ADDR=
 ONBOARDING_TOKEN_AMOUNT=100
 ONBOARDING_TOKEN_DISTRIBUTION_LIMIT=10
 ONBOARDING_REPLY="You received 100 TEST!"
@@ -34,20 +34,21 @@ SAFE_API_ENDPOINT="https://safe-transaction-base-sepolia.safe.global/api"
 
 JSON_LOGGER=false
 
+# SMPT and IMAP env variables are used by the local docker compose. Ignore if not testing locally
 # SMTP service - for sending emails to users
 SMTP_PORT=3000
 SMTP_INTERNAL_SERVER_HOST=0.0.0.0
 SMTP_INTERNAL_SERVER_PORT=3000
-SMTP_DOMAIN_NAME=smtp.gmail.com
-SMTP_LOGIN_ID=[email protected]    # IMAP login id - usually your email address.
-SMTP_LOGIN_PASSWORD=                # IMAP password - usually your email password.
-SMTP_MESSAGE_ID_DOMAIN=mail.gmail.com
+SMTP_DOMAIN_NAME=
+SMTP_LOGIN_ID= # IMAP login id - usually your email address.
+SMTP_LOGIN_PASSWORD= # IMAP password - usually your email password.
+SMTP_MESSAGE_ID_DOMAIN=
 SMPT_JSON_LOGGER=true
 
 # Imap service - for receiving emails from users
-IMAP_LOGIN_ID=[email protected]
-IMAP_LOGIN_PASSWORD=                # IMAP password - usually your email password.
-IMAP_DOMAIN_NAME=imap.gmail.com
-IMAP_PORT=993
+IMAP_LOGIN_ID=
+IMAP_LOGIN_PASSWORD= # IMAP password - usually your email password.
+IMAP_DOMAIN_NAME=
+IMAP_PORT=
 IMAP_AUTH_TYPE=password
 IMAP_JSON_LOGGER=true