Cosmos REST Faucet

⛲ A REST server for dispensing testnet tokens 💧

Strangelove Notes: Update fuacet settings

Make changes to config.toml or other files.

Build new docker image: docker builder build -t ghcr.io/strangelove-ventures/cosmos-rest-faucet:NEW-TAG-HERE

Push image: docker push ghcr.io/strangelove-ventures/cosmos-rest-faucet:NEW-TAG-HERE

Update image tag in infra repo

Features

• Responds to requests for tokens on multiple testnets
• Response includes a link to the transaction detail in the appropriate block explorer
• Limits the tokens a user can get within a time period for a given testnet
• Limits the tokens an address can get within a time period for a given testnet
• Daily cap for each testnet token
• Requests are saved in local csv file: date, cosmos address, amount, and testnet
• Errors are logged to systemd journal
• Supports Gaia v6.0.4+

Requirements

• Python 3.8.12+
• Initialized Gaia instance
• Faucet key in test keyring

🔧 Installation

1. Python dependencies:

cosmos-rest-faucet$ python -m venv .env
cosmos-rest-faucet$ source .env/bin/activate
cosmos-rest-faucet$ pip install -r requirements.txt

🚰 Usage

1. Modify the nodes, faucet addresses, amount to send, etc. in config.toml.
2. Run the server, either stand-alone or as a service.

Stand-alone

hypercorn cosmos_rest_faucet:app

• The server will listen on port 8000 by default.
• Use the -b option to use a different port.
• This can be run inside a tmux session.

Service

1. Modify the cosmos-rest-faucet.service file as appropriate.
2. Make a copy of cosmos-rest-faucet.service or create a link to it in /etc/systemd/system/.
3. Enable and start the service:

systemctl daemon-reload
systemctl enable cosmos-rest-faucet.service
systemctl start cosmos-rest-faucet.service
systemctl status cosmos-rest-faucet.service

API

1. Request tokens:

/request?address=<cosmos_address>&chain=<chain_id>

The chain must match one of the testnet entries in config.toml.

The response will be a JSON message:

{
  "address": <cosmos_address>,
  "amount": <tokens_sent>,
  "chain": <chain_id>,
  "hash": <hash_id>,
  "status": <"success" or "fail">
}

2. Request a balance:

/balance?address=<cosmos_address>&chain=<chain_id>

The chain must match one of the testnet entries in config.toml.

The response will be a JSON message:

{
  "address": <cosmos_address>,
  "balance": [
    {
      "amount": <amount_1>,
      "denom": <denom_1>
    },
    ...
    {
      "amount": "amount_n",
      "denom": <denom_n>
    }
  ],
  "chain": <chain_id>,
  "status": <"success" or "fail">
}

🔎 Code Standards

• All Python code is formatted to PEP 8 and linted with pylint.
• See lint.sh for details.