LNBits Auto-Credit Changes

Overview

Modified LNBits server to automatically credit new accounts with 1 million satoshis (1,000,000 sats) when they are created.

Changes Made

1. Modified `lnbits/core/services/users.py`

Added imports:

get_wallet from ..crud
update_wallet_balance from .payments

Modified create_user_account_no_ckeck function:

Changed create_wallet call to capture the returned wallet object
Added automatic credit of 1,000,000 sats after wallet creation
Added error handling and logging for the credit operation

Code changes:

# Before:
await create_wallet(
    user_id=account.id,
    wallet_name=wallet_name or settings.lnbits_default_wallet_name,
)

# After:
wallet = await create_wallet(
    user_id=account.id,
    wallet_name=wallet_name or settings.lnbits_default_wallet_name,
)

# Credit new account with 1 million satoshis
try:
    await update_wallet_balance(wallet, 1_000_000)
    logger.info(f"Credited new account {account.id} with 1,000,000 sats")
except Exception as e:
    logger.error(f"Failed to credit new account {account.id} with 1,000,000 sats: {e}")

2. Updated Tests in `tests/api/test_auth.py`

Modified test functions:

test_register_ok: Added balance verification for regular user registration
test_register_nostr_ok: Added balance verification for Nostr authentication

Added assertions:

# Check that the wallet has 1 million satoshis
wallet = user.wallets[0]
assert wallet.balance == 1_000_000, f"Expected 1,000,000 sats balance, got {wallet.balance} sats"

Affected Account Creation Paths

The automatic credit will be applied to all new accounts created through:

Regular user registration (/api/v1/auth/register)
Nostr authentication (/api/v1/auth/nostr)
SSO login (when new account is created)
API account creation (/api/v1/account)
Admin user creation (via admin interface)

Excluded Paths

Superuser/Admin account creation (init_admin_settings): This function creates the admin account directly and bypasses the user creation flow, so it won't receive the automatic credit.

Testing

To test the changes:

Install dependencies: poetry install
Run the modified tests: poetry run pytest tests/api/test_auth.py::test_register_ok -v
Run Nostr test: poetry run pytest tests/api/test_auth.py::test_register_nostr_ok -v

Logging

The system will log:

Success: "Credited new account {account.id} with 1,000,000 sats"
Failure: "Failed to credit new account {account.id} with 1,000,000 sats: {error}"

Notes

The credit uses the existing update_wallet_balance function which creates an internal payment record
The credit is applied after wallet creation but before user extensions are set up
Error handling ensures that account creation continues even if the credit fails
The credit amount is hardcoded to 1,000,000 sats (1MM sats)

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