Manta Pacific
Introduction
Manta Pacific's SLPx currently does not support inter-contract calls. However, if you are developing a wallet or frontend application, we welcome you to directly integrate the SLPx contract. If you have any technical questions, please feel free to contact our technical team:
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MantaPacificSlpx
contract
MantaPacificSlpx
contractAddress
Source code
ABI
Integration
Manta Pacific's SLPx currently does not support atomic contract calls. That means you can't integrate within your contract logic. The reason are as follows:
the minting process relies on
msg.sender
to be the receiver so this can have unintended effect on your contract logicthere is a wait time of about 8 to 10 minutes to receive the
vMANTA
token.
However, you can still interact with the contract directly from the frontend or use another contract but the call is structured at the end of the logic.
There are 3 main functions you use to integrate with MantaPacificSlpx
:
minAmount
(derived from the public variable minAmount
)
function minAmount() returns (uint256)
estimateSendAndCallFee
function estimateSendAndCallFee(
address assetAddress,
uint256 amount,
uint32 channel_id,
uint64 dstGasForCall,
bytes calldata adapterParams
) public view returns (uint256)
create_order
function create_order(
address assetAddress,
uint256 amount,
uint32 channel_id,
uint64 dstGasForCall,
bytes calldata adapterParams
) external payable
You want to fetch the minAmount()
function to check on the minimum amount of MANTA
that you need to use to mint. Currently this value is 2000000000000000000
equal to 2 MANTA
.
Next, you want to call the function estimateSendAndCallFee
to get the mint fee in ETH. The input values are defined as follows:
address assetAddress
0x95CeF13441Be50d20cA4558CC0a27B601aC544E5
Address of MANTA
token
uint256 amount
uint256
Amount of MANTA
token be used to mint to vMANTA
uint32 channel_id
0
ID of the channel
uint64 dstGasForCall
4000000
Destination gas for call
bytes calldata adapterParams
["uint16", "uint256"], [1, 4200000]
Parameters to be encoded for the Adapter. Refer to the adapterParams encoding section below on how to call
adapterParams encoding
With Ethers.js v5
, you can use solidityPack
function
ethers.utils.solidityPack(["uint16", "uint256"], [1, 4200000])
With Ethers.js v6
solidityPacked(["uint16", "uint256"], [1, 4200000])
With Viem
, you can use encodePacked
function
encodePacked(["uint16", "uint256"], [1, 4200000])
Example Viem integration
minAmount
const minAmount = await publicClient.readContract({
address: "0x95CeF13441Be50d20cA4558CC0a27B601aC544E5",
abi: mantaSLPxAbi,
functionName: "minAmount",
});
console.log("minAmount", minAmount);
// Output: minAmount 2000000000000000000n
estimateSendAndCallFee
const sendAndCallFee = await publicClient.readContract({
address: "0x95A4D4b345c551A9182289F9dD7A018b7Fd0f940",
abi: mantaSLPxAbi,
functionName: "estimateSendAndCallFee",
args: [
"0x95CeF13441Be50d20cA4558CC0a27B601aC544E5", // MANTA token
parseUnits(3, 18), // amount
0, // channel_id
4000000, // dstGasForCall
encodePacked(["uint16", "uint256"], [1, BigInt(4200000)]), // adapterParams
],
});
console.log("sendAndCallFee", sendAndCallFee);
// Output: sendAndCallFee 83556372916216n
Last call returns a value of 83556372916216
equal to 0.000083556372916216 ETH
.
Then, to mint vMANTA
with MANTA
, call approve
on MANTA
token contract to the MantaPacificSlpx
contract, then call the create_order
function with the same inputs as estimateSendAndCallFee
.
const { request: approvalRequest } = await publicClient.simulateContract({
account: currentAddress, // connected address
address: "0x95CeF13441Be50d20cA4558CC0a27B601aC544E5",
abi: erc20Abi,
functionName: "approve",
args: [
"0x95A4D4b345c551A9182289F9dD7A018b7Fd0f940",
parseUnits(3, 18),
],
});
let approvalHash = await walletClient.writeContract(approvalRequest);
console.log("approvalHash", approvalHash);
const { request: mintRequest } = await publicClient.simulateContract({
account: currentAddress, // connected address
address: "0x95A4D4b345c551A9182289F9dD7A018b7Fd0f940",
abi: mantaSLPxAbi,
functionName: "create_order",
args: [
"0x95CeF13441Be50d20cA4558CC0a27B601aC544E5", // MANTA token address
parseUnits(3, 18), // amount
0, // channel_id
4000000, // dstGasForCall
encodePacked(["uint16", "uint256"], [1, BigInt(4200000)]), // adapterParams
],
value: sendAndCallFee as bigint,
});
hash = await walletClient.writeContract(request);
transaction = await publicClient.waitForTransactionReceipt({
hash: hash,
});
console.log("hash", hash);
Then wait for 8 to 10 minutes to receive the vMANTA
token in the caller address.
Example Wagmi integration
minAmount
const { data: minAmount } = useReadContract({
...wagmiContractConfig,
address: "0x95CeF13441Be50d20cA4558CC0a27B601aC544E5",
abi: mantaSLPxAbi,
functionName: "minAmount",
});
console.log("minAmount", minAmount);
// Output: minAmount 2000000000000000000n
estimateSendAndCallFee
const { data: sendAndCallFee } = useReadContract({
...wagmiContractConfig,
address: "0x95A4D4b345c551A9182289F9dD7A018b7Fd0f940",
abi: mantaSLPxAbi,
functionName: "estimateSendAndCallFee",
args: [
"0x95CeF13441Be50d20cA4558CC0a27B601aC544E5", // MANTA token
parseUnits(3, 18), // amount
0, // channel_id
4000000, // dstGasForCall
encodePacked(["uint16", "uint256"], [1, BigInt(4200000)]), // adapterParams
],
});
console.log("sendAndCallFee", sendAndCallFee);
// Output: sendAndCallFee 83556372916216n
Last call returns a value of 83556372916216
equal to 0.000083556372916216 ETH
.
Then, to mint vMANTA
with MANTA
, call approve
on MANTA
token contract to the MantaPacificSlpx
contract, then call the create_order
function with the same inputs as estimateSendAndCallFee
.
const {
data: hash,
error,
isPending,
writeContract
} = useWriteContract()
async function approveLstContract() {
writeContract({
account: currentAddress, // connected address
address: "0x95CeF13441Be50d20cA4558CC0a27B601aC544E5",
abi: erc20Abi,
functionName: "approve",
args: [
"0x95A4D4b345c551A9182289F9dD7A018b7Fd0f940",
parseUnits(3, 18),
],
})
}
async function mintLst() {
writeContract({
account: currentAddress, // connected address
address: "0x95A4D4b345c551A9182289F9dD7A018b7Fd0f940",
abi: mantaSLPxAbi,
functionName: "create_order",
args: [
"0x95CeF13441Be50d20cA4558CC0a27B601aC544E5", // MANTA token address
parseUnits(3, 18), // amount
0, // channel_id
4000000, // dstGasForCall
encodePacked(["uint16", "uint256"], [1, BigInt(4200000)]), // adapterParams
],
value: sendAndCallFee as bigint,
})
}
const { isLoading: isConfirming, isSuccess: isConfirmed } =
useWaitForTransactionReceipt({
hash,
})
Then wait for 8 to 10 minutes to receive the vMANTA
token in the caller address.
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