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Use MetaMask For GBGC Chain (GBGC)

Tip

You may encounter a network configuration issue in recent releases of MetaMask, Please go to "Upgrade" section for solution

What is it?

MetaMask was created out of the needs of creating more secure and usable Ethereum-based web sites. In particular, it handles account management and connecting the user to the blockchain. It’s supported in Chrome, Brave, and Safari browsers.

Install

Example: Install MetaMask in Brave browser

  • Open Extension Category in Brave: https://chrome.google.com/webstore/category/extensionsSearch for MetaMask

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Warning

Note: Make sure it’s offered by metamask.io

  • Click on “Add to Brave”

That’s it! You have successfully installed MetaMask extension in Brave! img

Tip

The workflow is the same for all browsers

Create an account in MetaMask for GBGC Chain (GBGC)

  1. Click on the “Create a wallet” button

img 2. Create Password of at least 8 characters
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  1. Click on “Create” and then write down your backup phrase.

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  1. Select each phrase in order to make sure it is correct then click “Confirm”.

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Congratulations! you have create your MetaMask account!

Connect Your MetaMask With GBGC Chain (GBGC)

  1. Go to setting page

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  1. Add a new network
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    • Testnet

      • RPC URLs
      • ChainID: 11512
      • Symbol: GBGC
      • Block Explorer: https://testnet-explorer.gbgcscan.com

    • Mainnet

      • RPC URLs
      • ChainID: 11513
      • Symbol: GBGC
      • Block Explorer: https://gbgcscan.com

  2. Claim some testnet token to your account Click on your address for copy img

  3. Go to faucet page: https://testnet-explorer.gbgcscan.com/faucet-smart, then paste your address in the box and click on “Give me GBGC”

Tip

Please note that you can only claim once every minute

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After the transfer transaction is sent, you will see an increase of your balanceimg

Transfer GBGC to other GBGC Chain (GBGC) address

  1. Log in to your MetaMask
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  2. Click on Send button
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  3. Copy the receiver’s address in the box
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  4. Input the amount
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  5. Go to Advanced Options to modify default gas price when necessary
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  6. Confirm your transaction, then click Next
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  7. Click Confirm to send your transaction
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  8. Wait for your transaction to be included in the new block
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  9. Once your transaction is confirmed, check it on block explorer by clicking Details
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  10. Click on your account to see "Details''
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Verify your transaction in Explorer: img

Add GBGC20 Tokens

  1. Deploy an GBGC20 contract at https://remix.ethereum.org/ You can create a new file or import a sample contract: https://gist.github.com/HaoyangLiu/3c4dc081b7b5250877e40b82667c8508
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  2. Connect your GBGC Chain (GBGC) Account to Remix
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  3. Select “ABCToken” contract and compile img
  4. Deploy your compiled contract img

  5. Adjust Gas Fee for your contract, then confirm your deploy contract
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    You can see that there is a new ceate contract transaction in block explorer img

  6. In MetaMask, Click on “Add Token”
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  7. Choose “Custom Token” and copy the contract address in the box
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  8. Click on “Add Tokens”
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    Then you can see change of your balance
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Create Multiple Accounts

  1. To create multiple accounts, you click on Profile icon on MetaMask and then click on Create Account
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  2. You can then add an account name and click on Create.
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  3. Then you can see a new account is created!
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Upgrade

Since the release of v8.1.3, MetaMask sometimes displays the warning message "Invalid Custom Network".

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To solve this issue, click on "'Settings" and enter Chain ID of GBGC Chain (GBGC) network again. If 56 doesn’t work, try 0x38.

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