Faucet

Simply use it

Go to Faucet, connect your plug wallet, choose FICP and click on Claim to receive your Faucet ICPs.

We're talking to Plug's team to add FICP (Our canister and others) as an option for testing purposes.

If you want to have your own faucet, feel free to follow next section steps.

Deploy your own faucet

1. Clone Faucet repository.

2. Get a pre-built Ledger canister module and Candid interface files.

NOTE: The IC_VERSION variable is a commit hash from the DFINITY repository.

export IC_VERSION=a7058d009494bea7e1d898a3dd7b525922979039
curl -o ledger.wasm.gz https://download.dfinity.systems/ic/${IC_VERSION}/canisters/ledger-canister_notify-method.wasm.gz
gunzip ledger.wasm.gz
curl -o ledger.private.did https://raw.githubusercontent.com/dfinity/ic/${IC_VERSION}/rs/rosetta-api/ledger.did
curl -o ledger.public.did https://raw.githubusercontent.com/dfinity/ic/${IC_VERSION}/rs/rosetta-api/ledger_canister/ledger.did

3. Make sure you use a recent version of DFX.

If you don't have DFX installed, follow instructions on https://smartcontracts.org/ to install it.

4. If you don't have a DFX project yet, follow these instructions to create a new DFX project:

https://smartcontracts.org/docs/developers-guide/cli-reference/dfx-new.html

5. Copy the file you obtained at the first step (ledger.wasm, ledger.private.did, ledger.public.did) into the root of your project.

6. Add the following definition to the canisters object in your dfx.json file:

"customLedger": {
      "type": "custom",
      "wasm": "ledger.wasm",
      "candid": "ledger.private.did"
}

7. Start a local replica cleanning everything.

dfx start --clean

8. In a different console create all the canisters:

dfx canister create --all

9. Deploy the token faucet.

export NETWORK=local
export MINT_ACC=$(dfx ledger --network ${NETWORK} account-id --of-canister faucet)
export ARCHIVE_CONTROLLER=$(dfx identity get-principal)
export TOKEN_NAME="FaucetICP"
export TOKEN_SYMBOL="FICP"

dfx deploy --network ${NETWORK} customLedger --argument '(record {
  token_name = opt "'${TOKEN_NAME}'";
  token_symbol = opt "'${TOKEN_SYMBOL}'";
  minting_account = "'${MINT_ACC}'";
  transfer_fee = opt record{ e8s = 10_000 };
  initial_values = vec {};
  send_whitelist = vec {};
})'

where

• the NETWORK is the url or name of the replica where you want to deploy the ledger (e.g. use ic for the mainnet or local)
• the TOKEN_NAME is the human-readable name of your new token
• the TOKEN_SYMBOL is the symbol of your new token
• the MINT_ACC is the account of the Principal responsible for minting and burning tokens (see the xref:ledger.adoc[Ledger documentation]). In this case we're assigning a canister as the responsible.
• the ARCHIVE_CONTROLLER is the xref:https://smartcontracts.org/docs/developers-guide/default-wallet.html#_controller_and_custodian_roles[controller Principal] of the archive canisters.

For testing purposes we doesn't include archive_options on mainnet.

10. Update the canister definition in the dfx.json file to use the public Candid interface:

 {
   "canisters": {
    ...,
    "ledger": {
        "type": "custom",
        "wasm": "ledger.wasm",
-       "candid": "ledger.private.did"
+       "candid": "ledger.public.did"
    },
     ...
   }
 }

11. Check that the Ledger canister is healthy. Execute the following command:

dfx canister --network ${NETWORK} call customLedger symbol

The output should look like the following:

(record { symbol = "FICP" })

12. Deploy Faucet canister

export LEDGER_ID=$(dfx canister id customLedger)
dfx deploy --network ${NETWORK} faucet --argument '(record {
    ficp = record {
      canId = "'${LEDGER_ID}'";
      baseAmount = 1_000_000_000;
      baseFee = 0
    };
    fext = record {
      canId = "";
      baseAmount = 1_000_000_000;
      baseFee = 0
    };
    ft20 = record {
      canId = "";
      baseAmount = 1_000_000_000;
      baseFee = 0
    };
    fbtc = record {
      canId = "";
      baseAmount = 1_000_000_000;
      baseFee = 0
    }
  })'

Test and use the Faucet from dfx

1. Create a test user and transfer funds from the ICP faucet to your account:

dfx identity new test
dfx identity use test
dfx canister --network ${NETWORK} call faucet claim '(variant { FICP }, null)'

2. Check your account balance:

export TEST_ACC=$(dfx ledger --network ${NETWORK} account-id)
dfx canister --network ${NETWORK} call customLedger account_balance '(record { account = '$(python3 -c 'print("vec{" + ";".join([str(b) for b in bytes.fromhex("'$TEST_ACC'")]) + "}")')' })'

3. Update token options:

export LEDGER_ID="<ledger-canister-id>"
dfx canister call customLedger account_balance '(record {
    ficp = record {
      canId = "<new-ledger-canister-id>";
      baseAmount = 1_000_000_000;
      baseFee = 10_000
    };
    fext = record {
      canId = "";
      baseAmount = 1_000_000_000;
      baseFee = 10_000
    };
    ft20 = record {
      canId = "";
      baseAmount = 1_000_000_000;
      baseFee = 10_000
    };
    fbtc = record {
      canId = "";
      baseAmount = 1_000_000_000;
      baseFee = 10_000
    }
  })'

4. Remove frontend dependencies from dfx.json:

   "faucet_assets": {
-     "dependencies": [
-       "faucet"
-     ],
      "frontend": {
        "entrypoint": "src/faucet_assets/src/index.html"
      },

5. Change your identity:

dfx identity use default

5. Deploy your frontend canister:

dfx canister deploy faucet_assets