Clearnode - create_app_session "failed to parse parameters" error

[omsant02]

Environment:
- Network: Base
- Clearnode: wss://clearnet.yellow.com/ws  
- SDK: @erc7824/nitrolite v0.4.0

Problem:
Successfully authenticated, but `create_app_session` fails with "failed to parse parameters".

Request sent:
```json
{
  "definition": {
    "protocol": "nitroliterpc",
    "participants": ["0x633...", "0x435..."],
    "weights": [100, 0],
    "quorum": 100,
    "challenge": 0,
    "nonce": 1761406812230
  },
  "allocations": [
    {"participant": "0x633...", "asset": "usdc", "amount": "1"},
    {"participant": "0x435...", "asset": "usdc", "amount": "0"}
  ]
}

What is the correct format for createAppSessionMessage parameters?

[ihsraham]

Hi @omsant02
I looked at the ERC-7824 Nitrolite interface in the SDK, and based on the TypeScript types, here are potential issues with your parameters:

1. Amount should be a number, not a string

The Allocation interface defines amount as a numeric type (uint256):

export interface Allocation {
  destination: Address;
  token: Address;
  amount: bigint;  // Not string
}

Try changing:

// From
{"participant": "0x633...", "asset": "usdc", "amount": "1"}

// To
{"participant": "0x633...", "asset": "usdc", "amount": 1}

2. Asset should be a contract address

The token field expects an address type, not a symbol. If you've had the chance to look at the interface, you'll see it's defined as Address (hex string).

For Base USDC, try:

"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"

3. Challenge duration of 0 might be invalid

The SDK uses a default of 120 seconds for challenge duration. Consider changing:

"challenge": 120

[nksazonov]

@omsant02 , is this still a relevant question for you?