{ "id": "maYy0i7nYbJwepaQ", "meta": { "templateCredsSetupCompleted": true }, "name": "DCA w/ Uniswap V3", "tags": [], "nodes": [ { "id": "f43b592f-1203-47b8-9dac-61e8a9d3c9d3", "name": "Calculate TWAP", "type": "n8n-nodes-base.code", "position": [ 432, 160 ], "parameters": { "jsCode": "// Constants\nconst MaxUint256 = (1n << 256n) - 1n;\nconst Q32 = 1n << 32n;\nconst ZERO = 0n;\nconst ONE = 1n;\n\nfunction mulShift(val, mulBy) {\n return (val * BigInt(mulBy)) >> 128n;\n}\n\n/**\n * Returns the sqrt ratio as a Q64.96 for the given tick.\n * The sqrt ratio is computed as sqrt(1.0001)^tick\n * @param {number} tick the tick for which to compute the sqrt ratio\n */\nfunction getSqrtRatioAtTick(tick) {\n if (!Number.isInteger(tick)) throw new Error(\"Tick must be integer\");\n const MIN_TICK = -887272;\n const MAX_TICK = 887272;\n\n if (tick < MIN_TICK || tick > MAX_TICK) throw new Error(\"Tick out of bounds\");\n\n const absTick = tick < 0 ? -tick : tick;\n\n let ratio =\n (absTick & 0x1) != 0\n ? 0xfffcb933bd6fad37aa2d162d1a594001n\n : 0x1+1234567890+1234567890n;\n if ((absTick & 0x2) != 0) ratio = mulShift(ratio, 0xfff97272373d413259a46990580e213an);\n if ((absTick & 0x4) != 0) ratio = mulShift(ratio, 0xfff2e50f5f656932ef12357cf3c7fdccn);\n if ((absTick & 0x8) != 0) ratio = mulShift(ratio, 0xffe5caca7e10e4e61c3624eaa0941cd0n);\n if ((absTick & 0x10) != 0) ratio = mulShift(ratio, 0xffcb9843d60f6159c9db58835c926644n);\n if ((absTick & 0x20) != 0) ratio = mulShift(ratio, 0xff973b41fa98c081472e6896dfb254c0n);\n if ((absTick & 0x40) != 0) ratio = mulShift(ratio, 0xff2ea16466c96a3843ec78b326b52861n);\n if ((absTick & 0x80) != 0) ratio = mulShift(ratio, 0xfe5dee046a99a2a811c461f1969c3053n);\n if ((absTick & 0x100) != 0) ratio = mulShift(ratio, 0xfcbe86c7900a88aedcffc83b479aa3a4n);\n if ((absTick & 0x200) != 0) ratio = mulShift(ratio, 0xf987a7253ac413176f2b074cf7815e54n);\n if ((absTick & 0x400) != 0) ratio = mulShift(ratio, 0xf3392b0822b70005940c7a398e4b70f3n);\n if ((absTick & 0x800) != 0) ratio = mulShift(ratio, 0xe7159475a2c29b7443b29c7fa6e889d9n);\n if ((absTick & 0x1000) != 0) ratio = mulShift(ratio, 0xd097f3bdfd2022b8845ad8f792aa5825n);\n if ((absTick & 0x2000) != 0) ratio = mulShift(ratio, 0xa9f746462d870fdf8a65dc1f90e061e5n);\n if ((absTick & 0x4000) != 0) ratio = mulShift(ratio, 0x70d869a156d2a1b890bb3df62baf32f7n);\n if ((absTick & 0x8000) != 0) ratio = mulShift(ratio, 0x31be135f97d08fd981231505542fcfa6n);\n if ((absTick & 0x10000) != 0) ratio = mulShift(ratio, 0x9aa508b5b7a84e1c677de54f3e99bc9n);\n if ((absTick & 0x20000) != 0) ratio = mulShift(ratio, 0x5d6af8dedb81196699c329225ee604n);\n if ((absTick & 0x40000) != 0) ratio = mulShift(ratio, 0x2216e584f5fa1ea926041bedfe98n);\n if ((absTick & 0x80000) != 0) ratio = mulShift(ratio, 0x48a170391f7dc42444e8fa2n);\n\n if (tick > 0) {\n ratio = MaxUint256 / ratio;\n }\n\n // back to Q96\n return ratio % Q32 > 0n ? ratio / Q32 + ONE : ratio / Q32;\n}\n\nfunction getPriceFromSqrtPriceX96(sqrtPriceX96, decimals0, decimals1) {\n // Ensure input is BigInt\n const sqrtPrice = BigInt(sqrtPriceX96.toString());\n\n // (sqrtPriceX96 ^ 2)\n const numerator = sqrtPrice * sqrtPrice;\n\n // Denominator = 2^192\n const denominator = 1n << 192n;\n\n // Raw price ratio (tokenOut per tokenIn, no decimals adjusted)\n let ratio = Number(numerator * 10n**18n / denominator) / 1e18; \n // (we scale by 1e18 to stay precise when converting to Number)\n\n // Adjust for token decimals\n const decimalFactor = 10 ** (decimals0 - decimals1);\n const price = ratio * decimalFactor;\n\n return price;\n}\n\nconst amountOut = $input.first().json.result.decodedData[0];\nconst diffTickCumulative = parseInt($('Fetch Pool TWA Observations').first().json.response[0][0]) - parseInt($('Fetch Pool TWA Observations').first().json.response[0][1]);\nconst diffSecondsPerLIquidityX128 = parseInt($('Fetch Pool TWA Observations').first().json.response[1][0]) - parseInt($('Fetch Pool TWA Observations').first().json.response[1][1]);\nconst secondsBetween = parseInt($('Swap Configs').first().json.secondsAgo);\nconst secondsBetweenX128 = BigInt(secondsBetween) << BigInt(128);\nconst averageTick = parseInt(diffTickCumulative/secondsBetween);\n\nconst sqrtPriceX96After = $input.first().json.result.decodedData[1];\nconst priceAfter = getPriceFromSqrtPriceX96(sqrtPriceX96After, $('Swap Configs').first().json.tokenInDecimals, $('Swap Configs').first().json.tokenOutDecimals);\n\nconst sqrtTWAPricex96 = getSqrtRatioAtTick(averageTick);\nconst TWAP = getPriceFromSqrtPriceX96(sqrtTWAPricex96, $('Swap Configs').first().json.tokenInDecimals, $('Swap Configs').first().json.tokenOutDecimals);\nconst TWAL = secondsBetweenX128 / BigInt(diffSecondsPerLIquidityX128);\n\n// The \"price\" reported by a pool is how much of `token0` \nconsole.log(\"TWAP\", 1/TWAP);\nconsole.log(\"Price After: \", 1/priceAfter);\nconsole.log(\"TWAL\", TWAL);\n\n$input.first().json.twap = TWAP; \n$input.first().json.sqrtTWAPriceX96 = sqrtTWAPricex96; \n$input.first().json.twal = TWAL; \n$input.first().json.quotePriceAfter = priceAfter; \n$input.first().json.amountOut = amountOut;\n\nreturn $input.all()\n" }, "typeVersion": 2 }, { "id": "bd180960-416b-48f8-b524-9841428a34e9", "name": "Fetch Pool TWA Observations", "type": "n8n-nodes-1shot.oneShot", "position": [ -16, 160 ], "parameters": { "params": "={\n \"secondsAgos\": [\"0\",\"{{ $json.secondsAgo }}\"]\n} ", "operation": "read", "contractMethodId": "10cb761e-caae-400e-9c31-bde85f45f4cd" }, "credentials": { "oneShotOAuth2Api": { "name": "" } }, "typeVersion": 1 }, { "id": "46184b6b-263e-4e14-9518-2515e2d311a3", "name": "Get Swap Qoute", "type": "n8n-nodes-1shot.oneShot", "position": [ 208, 160 ], "parameters": { "params": "={\n \"params\": \n {\n \"tokenIn\": \"{{ $('Swap Configs').item.json.tokenIn }}\",\n \"tokenOut\": \"{{ $('Swap Configs').item.json.tokenOut }}\",\n \"amountIn\": \"{{ $('Swap Configs').item.json.amountDCA }}\",\n \"fee\": \"{{ $('Swap Configs').item.json.fee }}\",\n \"sqrtPriceLimitX96\": \"0\"\n }\n} ", "operation": "simulate", "contractMethodId": "3bc18080-46f6-4ba0-99f0-c1f6af57e7b3" }, "credentials": { "oneShotOAuth2Api": { "name": "" } }, "typeVersion": 1 }, { "id": "6b4d7900-7fae-4c1d-80cf-2900dfb4e299", "name": "Swap Tokens", "type": "n8n-nodes-1shot.oneShotSynch", "onError": "continueRegularOutput", "position": [ 880, 80 ], "parameters": { "params": "={\n\"params\": {\n\"tokenIn\": \"{{ $('Swap Configs').item.json.tokenIn }}\",\n\"tokenOut\": \"{{ $('Swap Configs').item.json.tokenOut }}\",\n\"fee\": \"{{ $('Swap Configs').item.json.fee }}\",\n\"recipient\": \"{{ $('Swap Configs').item.json.delegator }}\",\n\"amountIn\": \"{{ $('Swap Configs').item.json.amountDCA }}\",\n\"amountOutMinimum\": \"{{ $('Calculate TWAP').item.json.amountOut }}\",\n\"sqrtPriceLimitX96\": \"0\"\n}\n}", "operation": "executeAsDelegator", "additionalFields": { "memo": "=DCA Swap for {{ $('Swap Configs').item.json.amountDCA }}, TWAP: {{ $('Calculate TWAP').item.json.twap }}" }, "contractMethodId": "971b6978-79bf-42ac-8c99-52289dc94fac", "delegatorWalletAddress": "={{ $('Swap Configs').item.json.delegator }}" }, "credentials": { "oneShotOAuth2Api": { "name": "" } }, "typeVersion": 1 }, { "id": "a11c7481-97bf-4cee-8a3f-e604cd09236d", "name": "Schedule Trigger", "type": "n8n-nodes-base.scheduleTrigger", "position": [ -464, 160 ], "parameters": { "rule": { "interval": [ { "field": "minutes", "minutesInterval": 15 } ] } }, "typeVersion": 1.2 }, { "id": "8c435f3f-72dc-4102-99bd-13cda1ea27c8", "name": "Failure Details", "type": "n8n-nodes-base.telegram", "position": [ 1104, 256 ], "parameters": { "text": "=\u274c Swap Failed", "chatId": "123456789", "additionalFields": {} }, "credentials": { "telegramApi": { "name": "" } }, "typeVersion": 1.2 }, { "id": "d1512fe2-112f-48c0-8a98-cbbb08ab8f65", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [ -944, 160 ], "parameters": { "width": 320, "height": 224, "content": "## Set Your DCA Schedule\n\nn8n makes it really easy to set a recurring schedule for your DCA purchases. Click on the Schedule Trigger node and set your frequency. " }, "typeVersion": 1 }, { "id": "4f6661d0-978c-4554-97eb-f91519dd8c85", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [ -528, -160 ], "parameters": { "width": 720, "height": 304, "content": "## DCA configs\n\nSince we are using the Uniswap protocol directly, you'll need to set a few parameters in the Swap Configs node. \n\n1. Decide on the amount you want to spend on each DCA buy. \n2. Put your wallet address as the `delegator` so that the workflow can execute DCA buys on your behalf. \n3. Set the correct address for the Uniswap [SwapRouter](https://docs.uniswap.org/contracts/v3/reference/deployments/) contract\n4. Depending on the pool your are trading against, set the correct addresses for `tokenIn` and `tokenOut`. Also set the number of decimals used by `tokenIn` and `tokenOut`.\n5. Next, set the correct fee for the pool you are trading against (for most pools its just `500`). " }, "typeVersion": 1 }, { "id": "4b46e786-07d6-4184-8a90-ff264686c075", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [ 0, 608 ], "parameters": { "width": 720, "height": 384, "content": "## Connect to Your 1Shot API Account\n\nCreate an API key and secret in your 1Shot API account and connect your n8n instance by creating a credential. \n\n1. The `Fetch Pool TWA Observactions` should point to the `observe` method on your target trading pool (like this [one](https://app.uniswap.org/explore/pools/base/0xfBB6Eed8e7aa03B138556eeDaF5D271A5E1e43ef)). \n2. The `Get Swap Quote` node should point to the `quoteExactInputSingle` on the QuoterV2 contract.\n3. The `Give Approval to Router` should call `approve` on the token you are DCA'ing out of (like USDC). \n4. The `Swap Tokens` node should point at the `exactInputSingle` function on the Uniswap SwapRouterV2 contract. \n5. In order to get look up your remaining balance of funds that can be used for DCA purchases, point the `Get Remaining DCA Funds` at the `balanceOf` functions of the `token0` contract." }, "typeVersion": 1 }, { "id": "bb585dd2-901b-4bb3-b822-5ddf3ad80be7", "name": "Give Approval to Router", "type": "n8n-nodes-1shot.oneShotSynch", "onError": "continueRegularOutput", "position": [ 656, 160 ], "parameters": { "params": "={\n \"spender\": \"{{ $('Swap Configs').item.json.router }}\", \n \"value\": \"{{ $('Swap Configs').item.json.amountDCA }}\"\n} ", "operation": "executeAsDelegator", "additionalFields": { "memo": "=DCA Approve for {{ $('Swap Configs').item.json.amountDCA }}" }, "contractMethodId": "a8abf8ae-f524-444a-a9db-76a8a4711599", "delegatorWalletAddress": "={{ $('Swap Configs').item.json.delegator }}" }, "credentials": { "oneShotOAuth2Api": { "name": "" } }, "typeVersion": 1 }, { "id": "792928fb-59e5-44ba-a6b9-9f388c74f02a", "name": "Sticky Note3", "type": "n8n-nodes-base.stickyNote", "position": [ 1344, 224 ], "parameters": { "width": 544, "height": 176, "content": "## Telegram Notifications\n\nIf you want to get notified on each DCA purchase, connect a Telegram bot. " }, "typeVersion": 1 }, { "id": "2edc9432-92f2-4feb-a44a-f6d6f5608db1", "name": "Success Details", "type": "n8n-nodes-base.telegram", "position": [ 1328, 32 ], "parameters": { "text": "=\u2705 Swapped `{{ $('Swap Configs').item.json.amountDCA }}` `{{ $('Swap Configs').item.json.token0 }}` for {{ $('Get Swap Qoute').item.json.result.decodedData[0] }} {{ $('Swap Configs').item.json.token1 }}. \n\nThe `{{ $('Swap Configs').item.json.secondsAgo }}` second TWAP was `{{ $('Calculate TWAP').item.json.twap }}`. Your tx hash is `{{ $('Swap Tokens').item.json.transactionHash }}`.\n\nYou have {{ $json.response }} of token `{{ $('Swap Configs').item.json.token0 }}` left. ", "chatId": "123456789", "additionalFields": {} }, "credentials": { "telegramApi": { "name": "" } }, "typeVersion": 1.2 }, { "id": "3147ded9-fc81-4d00-b230-c313c0c3501a", "name": "Get Remaining DCA Funds Balance", "type": "n8n-nodes-1shot.oneShot", "position": [ 1104, 32 ], "parameters": { "params": "={\n \"account\": \"{{ $('Swap Configs').item.json.delegator }}\"\n}", "operation": "read", "contractMethodId": "9ad15620-d9bd-4c45-a0b2-4f9b647e80a7" }, "credentials": { "oneShotOAuth2Api": { "name": "" } }, "typeVersion": 1 }, { "id": "4d7da856-78f7-4553-a9f7-2a372688712b", "name": "Swap Configs", "type": "n8n-nodes-base.code", "position": [ -240, 160 ], "parameters": { "jsCode": "const amountDCA = 250000; // amount to swap each time\nconst delegator = \"0x9fead8b19c044c2f404dac38b925ea16adaa2954\"; // your delegated wallet address.\nconst router = \"0x2626664c2603336E57B271c5C0b26F421741e481\"; // the uniswap SwapRouterV2\nconst tokenIn = \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"; // token0 of your target pool, this one is USDC\nconst tokenOut = \"0xcbB7C0000aB88B473b1f5aFd9ef808440eed33Bf\"; // token1 of your target pool, this one is cbBTC\nconst tokenInDecimals = 6; // USDC has 6 decimals\nconst tokenOutDecimals = 8; // cbBTC has 8 decimals\nconst fee = 500; // the fee of your target pool, most pools have a fee of 500\nconst secondsAgo = 120; // the size of your TWAP window\n\n$input.first().json.amountDCA = amountDCA;\n$input.first().json.delegator = delegator;\n$input.first().json.router = router;\n$input.first().json.tokenIn = tokenIn;\n$input.first().json.tokenInDecimals = tokenInDecimals;\n$input.first().json.tokenOut = tokenOut;\n$input.first().json.tokenOutDecimals = tokenOutDecimals;\n$input.first().json.fee = fee;\n$input.first().json.secondsAgo = secondsAgo;\n\nreturn $input.all();\n" }, "typeVersion": 2 }, { "id": "326628a6-6b36-4f27-9af1-6fc5bc13d430", "name": "Sticky Note4", "type": "n8n-nodes-base.stickyNote", "position": [ 64, 368 ], "parameters": { "width": 576, "height": 192, "content": "## Contracts to Import to Your 1Shot API account:\n\n1. [Uniswap SwapRouterV2](https://app.1shotapi.com/1shot-prompts/ce849711-a23a-4d6b-8a85-f5787011893e)\n2. [Uniswap Quoter02](https://app.1shotapi.com/1shot-prompts/4025d2d0-d7be-4251-b118-3470e9412d77)\n3. [Uniswap USDC/cbBTC Pool V3](https://app.1shotapi.com/1shot-prompts/3d95715b-ac09-4f7f-b2e6-918f6bd11875)\n4. [USDC](https://app.1shotapi.com/1shot-prompts/e087662d-154a-4810-bebf-327a950e2414)" }, "typeVersion": 1 }, { "id": "be85f1ff-4ebf-4a5d-a3f2-aa62c6dc706e", "name": "Sticky Note5", "type": "n8n-nodes-base.stickyNote", "position": [ -944, 432 ], "parameters": { "width": 768, "height": 560, "content": "## YouTube Tutorial\n\n@[youtube](JiyLR5NtU7I)" }, "typeVersion": 1 } ], "active": false, "settings": { "executionOrder": "v1" }, "versionId": "1b7fd32c-564f-477e-a38e-cc97299735c0", "connections": { "Swap Tokens": { "main": [ [ { "node": "Get Remaining DCA Funds Balance", "type": "main", "index": 0 } ], [ { "node": "Failure Details", "type": "main", "index": 0 } ] ] }, "Swap Configs": { "main": [ [ { "node": "Fetch Pool TWA Observations", "type": "main", "index": 0 } ] ] }, "Calculate TWAP": { "main": [ [ { "node": "Give Approval to Router", "type": "main", "index": 0 } ] ] }, "Get Swap Qoute": { "main": [ [ { "node": "Calculate TWAP", "type": "main", "index": 0 } ] ] }, "Schedule Trigger": { "main": [ [ { "node": "Swap Configs", "type": "main", "index": 0 } ] ] }, "Give Approval to Router": { "main": [ [ { "node": "Swap Tokens", "type": "main", "index": 0 } ], [ { "node": "Failure Details", "type": "main", "index": 0 } ] ] }, "Fetch Pool TWA Observations": { "main": [ [ { "node": "Get Swap Qoute", "type": "main", "index": 0 } ] ] }, "Get Remaining DCA Funds Balance": { "main": [ [ { "node": "Success Details", "type": "main", "index": 0 } ] ] } } }