approve_token
The approve_token method grants permission for a given smart contract to spend a defined amount of your tokens.
Refer to the 1inch Classic Swap documentation for more information.
| Structure | Type | Description |
|---|---|---|
| coin | string | Token ticker |
| spender | string | Address of smart contract to approve for spending |
| amount | float | Approved amount to spend (in coins units) |
| Structure | Type | Description |
|---|---|---|
| result | string | Approval transaction id |
POST
approve_token{
"mmrpc": "2.0",
"userpass": "RPC_UserP@SSW0RD",
"method": "approve_token",
"params": {
"coin": "USDT-ERC20",
"spender": "0x1234567890123456789",
"amount": 1.23
}
}
{
"mmrpc": "2.0",
"result": "0x1234567890abcdef01234567890abcdef0",
"id": "null"
}
{
"mmrpc": "2.0",
"error": "No such coin USDT-ERC20",
"error_path": "tokens",
"error_trace": "tokens:171]",
"error_type": "NoSuchCoin",
"error_data": {
"coin": "USDT-ERC20"
},
"id": null
}
{
"mmrpc": "2.0",
"error": "Transaction error mm2src/coins/eth.rs:4834] eth:4720] Transport(\"request MethodCall(MethodCall { jsonrpc: Some(V2), method: \\\"eth_estimateGas\\\", params: Array([Object({\\\"from\\\": String(\\\"0x083c32b38e8050473f6999e22f670d1404235592\\\"), \\\"to\\\": String(\\\"0xd6df932a45c0f255f85145f286ea0b292b21c90b\\\"), \\\"gasPrice\\\": String(\\\"0x6fc23a56a\\\"), \\\"value\\\": String(\\\"0x0\\\"), \\\"data\\\": String(\\\"0x095ea7b3000000000000000000000000083c32b38e8050473f6999e22f670d14042355920000000000000000000000000000000000000000000000001111d67bb1bb0000\\\")})]), id: Num(1) }) failed: Invalid response: Server: 'https://electrum3.cipig.net:18755/', error: RPC error: Error { code: ServerError(-32000), message: \\\"insufficient funds for transfer\\\", data: None }\")",
"error_path": "tokens",
"error_trace": "tokens:161]",
"error_type": "TransactionError",
"error_data": "mm2src/coins/eth.rs:4834] eth:4720] Transport(\"request MethodCall(MethodCall { jsonrpc: Some(V2), method: \\\"eth_estimateGas\\\", params: Array([Object({\\\"from\\\": String(\\\"0x083c32b38e8050473f6999e22f670d1404235592\\\"), \\\"to\\\": String(\\\"0xd6df932a45c0f255f85145f286ea0b292b21c90b\\\"), \\\"gasPrice\\\": String(\\\"0x6fc23a56a\\\"), \\\"value\\\": String(\\\"0x0\\\"), \\\"data\\\": String(\\\"0x095ea7b3000000000000000000000000083c32b38e8050473f6999e22f670d14042355920000000000000000000000000000000000000000000000001111d67bb1bb0000\\\")})]), id: Num(1) }) failed: Invalid response: Server: 'https://electrum3.cipig.net:18755/', error: RPC error: Error { code: ServerError(-32000), message: \\\"insufficient funds for transfer\\\", data: None }\")",
"id": null
}