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Source: Full executable TypeScript in contract/src/examples/02-campaign-keep-whats-raised/. This page summarizes the flow — read the source for complete per-step code.
PrerequisitesYour platform must be enlisted with the Keep-What’s-Raised implementation registered and approved — see Platform Enlistment.

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The Story

TechForge is a small team of developers building an open-source code review tool. They want to raise $10,000 to fund a working prototype, but they know that even partial funding would let them build a smaller version. Unlike Maya’s All-or-Nothing campaign, TechForge wants the flexibility to keep whatever they raise, even if the full $10,000 is not reached. TechForge chooses the Keep-What’s-Raised funding model on ArtFund. This model offers several features the All-or-Nothing model does not:
  • Partial withdrawals — early access to raised funds mid-campaign (subject to platform approval and a configurable delay)
  • Final withdrawal — after the deadline, the creator sweeps the remaining balance with applicable fees
  • Tips — backers can include an optional tip on top of their pledge
  • Configurable fee structure — flat fees, percentage-based fees, and fee exemption thresholds
  • Refund delays — a configurable waiting period after the deadline before backers can claim refunds
  • Updatable parameters — extend the deadline or adjust the funding goal (before the config lock period)

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Multi-token support

Same model as All-or-Nothing: the campaign whitelists multiple ERC-20s per currency; each pledge names pledgeToken; withdraw(token, amount) and fee paths are per token.

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Role Reference

FunctionWho can callContract modifier
configureTreasuryPlatform AdminonlyPlatformAdmin
approveWithdrawalPlatform AdminonlyPlatformAdmin
withdraw(token, amount)Platform Admin or CreatoronlyPlatformAdminOrCampaignOwner
claimFundPlatform AdminonlyPlatformAdmin
claimTipPlatform AdminonlyPlatformAdmin
disburseFeesAnyone(no role modifier)
addRewards / removeRewardCreatoronlyCampaignOwner
pledgeForAReward / pledgeWithoutARewardAnyone (backer)(no role modifier — time-gated)
setFeeAndPledge / setPaymentGatewayFeePlatform AdminonlyPlatformAdmin
claimRefundAnyone (NFT owner)(no role modifier — time-gated)
updateDeadline / updateGoalAmountPlatform Admin or CreatoronlyPlatformAdminOrCampaignOwner
cancelTreasuryPlatform Admin or CreatoronlyPlatformAdminOrCampaignOwner

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Steps

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Step 1: Create Campaign

TechForge creates a 60-day campaign with a $10,000 goal through the CampaignInfoFactory. 
import { CAMPAIGN_INFO_FACTORY_EVENTS } from "@oaknetwork/contracts-sdk";

const platformHash = keccak256(toHex("artfund"));
const identifierHash = keccak256(toHex("techforge-devtool-2026"));
const currency = toHex("USD", { size: 32 });
const now = getCurrentTimestamp();

const createTxHash = await factory.createCampaign({
  creator: process.env.TECHFORGE_ADDRESS! as `0x${string}`,
  identifierHash,
  selectedPlatformHash: [platformHash],
  campaignData: {
    launchTime: now + 1800n,       // launches in 30 minutes
    deadline: addDays(now, 60),    // 60-day campaign
    goalAmount: 10_000_000_000n,   // $10,000
    currency,
  },
  nftName: "TechForge Early Backers",
  nftSymbol: "TFEB",
  nftImageURI: "ipfs://QmAbc.../techforge.png",
  contractURI: "ipfs://QmAbc.../metadata.json",
});

const createReceipt = await oak.waitForReceipt(createTxHash);
After the transaction is mined, the deployed CampaignInfo address can be discovered two ways. Both are shown in the source file — prefer Approach 1 when you have the receipt. Approach 1 — Decode CampaignCreated from the receipt (recommended): deterministic and works immediately, regardless of RPC indexing lag. 
let campaignInfoAddress: `0x${string}` | undefined;

for (const log of createReceipt.logs) {
  try {
    const decoded = factory.events.decodeLog({
      topics: log.topics as [`0x${string}`, ...`0x${string}`[]],
      data: log.data as `0x${string}`,
    });

    if (decoded.eventName === CAMPAIGN_INFO_FACTORY_EVENTS.CampaignCreated) {
      campaignInfoAddress = decoded.args?.campaignInfoAddress as `0x${string}`;
      break;
    }
  } catch {
    // Log belongs to a different contract — skip
  }
}

console.log("CampaignInfo (from receipt):", campaignInfoAddress);
Approach 2 — Look up via identifierToCampaignInfo (convenience): handy when you only have the identifier and did not keep the receipt. On some RPC providers the mapping may briefly return the zero address right after the transaction, so prefer Approach 1 when the receipt is available. 
const lookedUp = await factory.identifierToCampaignInfo(identifierHash);
console.log("CampaignInfo (from lookup):", lookedUp);

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Step 2: Deploy Treasury

TechForge deploys a Keep-What’s-Raised treasury linked to the campaign. Slot 1n is the KWR implementation. 
import { TREASURY_FACTORY_EVENTS } from "@oaknetwork/contracts-sdk";

const platformHash = keccak256(toHex("artfund"));
const kwrImplementationId = 1n;

const deployTxHash = await treasuryFactory.deploy(
  platformHash,
  campaignInfoAddress,
  kwrImplementationId,
);

const deployReceipt = await oak.waitForReceipt(deployTxHash);

// Decode the TreasuryDeployed event from the receipt
let treasuryAddress: `0x${string}` | undefined;

for (const log of deployReceipt.logs) {
  try {
    const decoded = treasuryFactory.events.decodeLog({
      topics: log.topics as [`0x${string}`, ...`0x${string}`[]],
      data: log.data as `0x${string}`,
    });

    if (decoded.eventName === TREASURY_FACTORY_EVENTS.TreasuryDeployed) {
      treasuryAddress = decoded.args?.treasuryAddress as `0x${string}`;
      break;
    }
  } catch {
    // Log belongs to a different contract — skip
  }
}

console.log("KWR treasury deployed at:", treasuryAddress);

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Step 3: Configure Treasury (Platform Admin)

The Platform Admin configures withdrawal delays, refund policies, and fee structure. The creator cannot call this. This step uses withdrawalDelay: 0n so Step 6a and 6b can run back-to-back in the tutorial; in production, use a positive value. 
const config: KeepWhatsRaisedConfig = {
  minimumWithdrawalForFeeExemption: 1_000_000_000n,  // $1,000 — withdrawals above this skip flat fee
  withdrawalDelay: 0n,            // use 86400n (24h) in production
  refundDelay: 259200n,           // 3-day delay after deadline before refunds
  configLockPeriod: 604800n,      // config locked for 7 days before deadline
  isColombianCreator: false,
};

const feeKeys: KeepWhatsRaisedFeeKeys = {
  flatFeeKey: keccak256(toHex("flatWithdrawalFee")),
  cumulativeFlatFeeKey: keccak256(toHex("cumulativeFlatFee")),
  grossPercentageFeeKeys: [keccak256(toHex("grossFee"))],
};

const feeValues: KeepWhatsRaisedFeeValues = {
  flatFeeValue: 5_000_000n,            // $5 per withdrawal
  cumulativeFlatFeeValue: 50_000_000n,  // $50 cumulative max
  grossPercentageFeeValues: [200n],     // 2%
};

await treasury.configureTreasury(config, campaignData, feeKeys, feeValues);

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Step 4: Manage Reward Tiers

TechForge adds reward tiers. Tiers can also be removed with removeReward. 
const earlyBirdReward = keccak256(toHex("early-bird"));
const proReward = keccak256(toHex("pro-license"));

const addTxHash = await treasury.addRewards(
  [earlyBirdReward, proReward],
  [
    { rewardValue: 50_000_000n, isRewardTier: true, itemId: [], itemValue: [], itemQuantity: [] },
    { rewardValue: 200_000_000n, isRewardTier: true, itemId: [], itemValue: [], itemQuantity: [] },
  ],
);

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Step 5: Backer Pledges

Three pledge options: pledgeForAReward, pledgeWithoutAReward, or (Platform Admin only) setFeeAndPledge which records a payment-gateway fee and the pledge atomically. Every pledge requires a unique pledgeId and supports an optional tip. 
const pledgeToken = process.env.USDC_TOKEN_ADDRESS! as `0x${string}`;
const earlyBirdReward = keccak256(toHex("early-bird"));
const pledgeId = keccak256(toHex("pledge-001"));

// Pledge for a reward
await treasury.pledgeForAReward(
  pledgeId,
  backerAddress,
  pledgeToken,
  0n,                 // no tip
  [earlyBirdReward],
);

// Pledge without a reward
await supporterTreasury.pledgeWithoutAReward(
  keccak256(toHex("pledge-002")),
  supporterAddress,
  pledgeToken,
  50_000_000n, // $50
  0n,          // no tip
);

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Step 6a: Approve Partial Withdrawal (Platform Admin)

Before the creator can withdraw mid-campaign, the Platform Admin must approve once. The creator may then call withdraw(token, amount) after the configured withdrawalDelay has elapsed. 
const approvalTxHash = await platformTreasury.approveWithdrawal();
await platformOak.waitForReceipt(approvalTxHash);
// getWithdrawalApprovalStatus() returns true

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Step 6b: Execute Partial Withdrawal (Creator)

With approval granted (and after any withdrawal delay), the creator withdraws a specific amount of an accepted ERC-20. 
const withdrawToken = process.env.USDC_TOKEN_ADDRESS! as `0x${string}`;
const withdrawAmount = 2_000_000_000n; // $2,000

const withdrawTxHash = await creatorTreasury.withdraw(withdrawToken, withdrawAmount);
await creatorOak.waitForReceipt(withdrawTxHash);

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Step 6c: Final Withdrawal (Post-Deadline)

After the deadline, the creator (or Platform Admin) sweeps the entire remaining balance of a specific token. The amount parameter is ignored; pass 0n. Call disburseFees() first so protocol and platform fees are already transferred out. 
const withdrawToken = process.env.USDC_TOKEN_ADDRESS! as `0x${string}`;

// The contract uses the full available balance — amount is ignored
const finalWithdrawTxHash = await treasury.withdraw(withdrawToken, 0n);

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Step 7: Monitor Progress

Anyone can read the campaign dashboard — raised amounts, available balance, fees, approval status, and state. 
const raisedAmount = await treasury.getRaisedAmount();
const availableRaised = await treasury.getAvailableRaisedAmount();
const lifetimeRaised = await treasury.getLifetimeRaisedAmount();
const refundedAmount = await treasury.getRefundedAmount();
const withdrawalApproved = await treasury.getWithdrawalApprovalStatus();
const isPaused = await treasury.paused();
const isCancelled = await treasury.cancelled();

const flatFeeKey = keccak256(toHex("flatWithdrawalFee"));
const flatFeeValue = await treasury.getFeeValue(flatFeeKey);

const gatewayFee = await treasury.getPaymentGatewayFee(keccak256(toHex("pledge-001")));

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Step 8: Disburse Fees

disburseFees() transfers accumulated protocol and platform fees to their recipients. Anyone can call it. Must be called before cancellation — disburseFees has a whenNotCancelled modifier. 
const feeTxHash = await treasury.disburseFees();
await oak.waitForReceipt(feeTxHash);

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Step 9: Claim Residual Funds (Platform Admin)

After the withdrawal delay has fully elapsed (deadline + withdrawalDelay), the Platform Admin can sweep any remaining balance of every accepted token to the platform admin’s wallet. Only callable once. 
const claimTxHash = await treasury.claimFund();
await platformOak.waitForReceipt(claimTxHash);

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Step 10: Claim Tips (Platform Admin)

Tips included by backers on top of pledges are tracked separately and claimed by the Platform Admin (not the creator). Callable after the deadline or after cancellation. Only callable once. 
const tipTxHash = await treasury.claimTip();
await platformOak.waitForReceipt(tipTxHash);

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Step 11: Claim Refund (Backer)

After the deadline plus refund delay window, backers can reclaim their pledges. claimRefund(tokenId) burns the NFT and returns the pledged tokens (minus payment fees) to the NFT owner. Pledge NFTs live on the CampaignInfo contract, so approval must be done there. 
const tokenId = BigInt(process.env.BACKER_PLEDGE_TOKEN_ID!);

// Approve on CampaignInfo (not the treasury)
const approveTxHash = await campaign.approve(treasuryAddress, tokenId);
await backerOak.waitForReceipt(approveTxHash);

const refundTxHash = await treasury.claimRefund(tokenId);
await backerOak.waitForReceipt(refundTxHash);

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Step 12: Update Campaign (Optional)

Before the config lock period, the creator or Platform Admin can extend the deadline or adjust the goal. 
// Extend the deadline to 90 days
const newDeadline = addDays(getCurrentTimestamp(), 90);
await treasury.updateDeadline(newDeadline);

// Lower the goal
await treasury.updateGoalAmount(7_500_000_000n); // $7,500

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Step 13: Pause and Unpause (Optional)

Platform Admin can freeze all treasury activity during an investigation. 
await treasury.pauseTreasury(keccak256(toHex("compliance-review")));
// ... later ...
await treasury.unpauseTreasury(keccak256(toHex("review-cleared")));

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Step 14: Cancel (Optional)

Cancellation is permanent. Once cancelled, no new pledges or creator claims are possible, but backers can still refund. 
await treasury.cancelTreasury(keccak256(toHex("terms-violation")));