CoinDrip
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Codebase

Smart Contract code

The CoinDrip protocol is open-source, and the code is available on GitHub.
The code is also audited by Arda, and you can check the audit report here.

ABI

Depending on how you plan to integrate the CoinDrip protocol into your dApp, you might need CoinDrip's ABI (application binary interface).
{
"buildInfo": {
"rustc": {
"version": "1.66.0-nightly",
"commitHash": "b8c35ca26b191bb9a9ac669a4b3f4d3d52d97fb1",
"commitDate": "2022-10-15",
"channel": "Nightly",
"short": "rustc 1.66.0-nightly (b8c35ca26 2022-10-15)"
},
"contractCrate": {
"name": "coindrip",
"version": "1.0.1-beta"
},
"framework": {
"name": "multiversx-sc",
"version": "0.39.2"
}
},
"name": "CoinDrip",
"constructor": {
"inputs": [],
"outputs": []
},
"endpoints": [
{
"name": "createStream",
"mutability": "mutable",
"payableInTokens": [
"*"
],
"inputs": [
{
"name": "recipient",
"type": "Address"
},
{
"name": "start_time",
"type": "u64"
},
{
"name": "end_time",
"type": "u64"
},
{
"name": "_can_cancel",
"type": "optional<bool>",
"multi_arg": true
}
],
"outputs": []
},
{
"docs": [
"",
"Calculates the recipient balance based on the amount stream so far and the already claimed amount",
"|xxxx|*******|--|",
"S C E",
"S = start time",
"xxxx = already claimed amount",
"C = current time",
"E = end time",
"The zone marked with \"****...\" represents the recipient balance"
],
"name": "recipientBalance",
"mutability": "readonly",
"inputs": [
{
"name": "stream_id",
"type": "u64"
}
],
"outputs": [
{
"type": "BigUint"
}
]
},
{
"docs": [
"Calculates the sender balance based on the recipient balance and the claimed balance",
"|----|-------|**|",
"S L.C C E",
"S = start time",
"L.C = last claimed amount",
"C = current time",
"E = end time",
"The zone marked with \"**\" represents the sender balance"
],
"name": "senderBalance",
"mutability": "readonly",
"inputs": [
{
"name": "stream_id",
"type": "u64"
}
],
"outputs": [
{
"type": "BigUint"
}
]
},
{
"docs": [
"This endpoint can be used by the recipient of the stream to claim the stream amount of tokens"
],
"name": "claimFromStream",
"mutability": "mutable",
"inputs": [
{
"name": "stream_id",
"type": "u64"
}
],
"outputs": []
},
{
"docs": [
"This endpoint can be used the by sender or recipient of a stream to cancel the stream.",
"!!! The stream needs to be cancelable (a property that is set when the stream is created by the sender)"
],
"name": "cancelStream",
"mutability": "mutable",
"inputs": [
{
"name": "stream_id",
"type": "u64"
},
{
"name": "_with_claim",
"type": "optional<bool>",
"multi_arg": true
}
],
"outputs": []
},
{
"docs": [
"After a stream was cancelled, you can call this endpoint to claim the streamed tokens as a recipient or the remaining tokens as a sender",
"This endpoint is especially helpful when the recipient/sender is a non-payable smart contract",
"For convenience, this endpoint is automatically called by default from the cancel_stream endpoint (is not instructed otherwise by the \"_with_claim\" param)"
],
"name": "claimFromStreamAfterCancel",
"mutability": "mutable",
"inputs": [
{
"name": "stream_id",
"type": "u64"
}
],
"outputs": []
},
{
"name": "getStreamData",
"mutability": "readonly",
"inputs": [
{
"name": "stream_id",
"type": "u64"
}
],
"outputs": [
{
"type": "Stream"
}
]
},
{
"name": "getStreamListByAddress",
"mutability": "readonly",
"inputs": [
{
"name": "address",
"type": "Address"
}
],
"outputs": [
{
"type": "variadic<u64>",
"multi_result": true
}
]
},
{
"name": "getLastStreamId",
"mutability": "readonly",
"inputs": [],
"outputs": [
{
"type": "u64"
}
]
}
],
"events": [
{
"identifier": "createStream",
"inputs": [
{
"name": "stream_id",
"type": "u64",
"indexed": true
},
{
"name": "sender",
"type": "Address",
"indexed": true
},
{
"name": "recipient",
"type": "Address",
"indexed": true
},
{
"name": "payment_token",
"type": "EgldOrEsdtTokenIdentifier",
"indexed": true
},
{
"name": "payment_nonce",
"type": "u64",
"indexed": true
},
{
"name": "deposit",
"type": "BigUint",
"indexed": true
},
{
"name": "start_time",
"type": "u64",
"indexed": true
},
{
"name": "end_time",
"type": "u64",
"indexed": true
}
]
},
{
"identifier": "claimFromStream",
"inputs": [
{
"name": "stream_id",
"type": "u64",
"indexed": true
},
{
"name": "amount",
"type": "BigUint",
"indexed": true
},
{
"name": "finalized",
"type": "bool",
"indexed": true
}
]
},
{
"identifier": "cancelStream",
"inputs": [
{
"name": "stream_id",
"type": "u64",
"indexed": true
},
{
"name": "canceled_by",
"type": "Address",
"indexed": true
},
{
"name": "claimed_amount",
"type": "BigUint",
"indexed": true
}
]
}
],
"hasCallback": false,
"types": {
"BalancesAfterCancel": {
"type": "struct",
"fields": [
{
"name": "sender_balance",
"type": "BigUint"
},
{
"name": "recipient_balance",
"type": "BigUint"
}
]
},
"Stream": {
"type": "struct",
"fields": [
{
"name": "sender",
"type": "Address"
},
{
"name": "recipient",
"type": "Address"
},
{
"name": "payment_token",
"type": "EgldOrEsdtTokenIdentifier"
},
{
"name": "payment_nonce",
"type": "u64"
},
{
"name": "deposit",
"type": "BigUint"
},
{
"name": "claimed_amount",
"type": "BigUint"
},
{
"name": "can_cancel",
"type": "bool"
},
{
"name": "start_time",
"type": "u64"
},
{
"name": "end_time",
"type": "u64"
},
{
"name": "balances_after_cancel",
"type": "Option<BalancesAfterCancel>"
}
]
}
}
}
You can also obtain the ABI JSON if you build the contract using mxpy.
git clone https://github.com/CoinDrip-finance/coindrip-protocol-sc
cd ./coindrip-protocol-sc
mxpy contract build