# Single-chain swap calldata: 10 USDT to USDC on Polygon, routed through the quote's aggregatorId.
# Needs openssl, curl and OLYMPEX_API_KEY_ID, OLYMPEX_SECRET_KEY, OLYMPEX_PASSPHRASE.
METHOD=POST
ENDPOINT=/swap
QUERY=''
BODY='{"mode":"single-chain","params":{"account":"0x1E67cb01969D79B2B895179e4A07D24a839dBb52","aggregatorId":"oneInch","amount":"10","chainId":137,"gasPrice":"35","inTokenAddress":"0xc2132d05d31c914a87c6611c10748aeb04b58e8f","outTokenAddress":"0x3c499c542cef5e3811e1192ce70d8cc03d5c3359","slippage":"1"}}'
TS="${OLYMPEX_TIMESTAMP:-$(date +%s)}"
NONCE="${OLYMPEX_NONCE:-$(openssl rand -hex 12)}"
BODY_HASH="$(printf '%s' "$BODY" | openssl dgst -sha256 -binary | openssl base64 -A | tr '+/' '-_' | tr -d '=')"
VALUE_INFO="$(printf '%s\n%s\n%s' "$TS" "$NONCE" "$BODY_HASH")"
MESSAGE="$(printf 'OLPX-HMAC-SHA256-V2\n%s\n%s\n%s\n%s\n%s\n%s' "$TS" "$NONCE" "$METHOD" "/api/v1$ENDPOINT" "$QUERY" "$BODY_HASH")"
curl -sS -X "$METHOD" "https://api-rest.olympex.io/api/v1$ENDPOINT${QUERY:+?$QUERY}" \
  -H "content-type: application/json" \
  -H "x-api-key-id: $OLYMPEX_API_KEY_ID" \
  -H "x-value-info: $(printf '%s' "$VALUE_INFO" | openssl base64 -A)" \
  -H "x-passphrase: $OLYMPEX_PASSPHRASE" \
  -H "x-signature: $(printf '%s' "$MESSAGE" | openssl dgst -sha256 -hmac "$OLYMPEX_SECRET_KEY" -binary | od -An -v -tx1 | tr -d ' \n')" \
  --data-raw "$BODY"

import { olympexRequest } from "./sign-request.ts"; // /authentication/sign-requests

type QuoteData = { mode: "single-chain"; quote: { aggregatorId: string; aggregatorOrder: string[] | null; outAmount: string } };
type SwapData = {
  mode: "single-chain";
  swap: { to: string; data: string; value: string; contractToApprove: string; outAmount: string; minOutAmount: string };
};

const params = {
  chainId: 137,
  inTokenAddress: "0xc2132d05d31c914a87c6611c10748aeb04b58e8f", // USDT
  outTokenAddress: "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359", // USDC
  amount: "10",
  slippage: "1",
  gasPrice: "35",
};

const { quote } = await olympexRequest<QuoteData>("POST", "/quotes", { mode: "single-chain", params });
const { swap } = await olympexRequest<SwapData>("POST", "/swap", {
  mode: "single-chain",
  params: { ...params, account: "0x1E67cb01969D79B2B895179e4A07D24a839dBb52", aggregatorId: quote.aggregatorId },
});

// Next: approve swap.contractToApprove for exactly 10 USDT, then run eth_estimateGas and send from `account` right away.
// If the estimate reverts, build again with the next aggregatorId in quote.aggregatorOrder.
const transaction = { to: swap.to, data: swap.data, value: BigInt(swap.value) };
console.log(transaction, swap.contractToApprove, swap.minOutAmount);

from sign_request import olympex_request  # /authentication/sign-requests

params = {
    "chainId": 137,
    "inTokenAddress": "0xc2132d05d31c914a87c6611c10748aeb04b58e8f",  # USDT
    "outTokenAddress": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",  # USDC
    "amount": "10",
    "slippage": "1",
    "gasPrice": "35",
}

quote = olympex_request("POST", "/quotes", {"mode": "single-chain", "params": params})["quote"]
swap = olympex_request("POST", "/swap", {
    "mode": "single-chain",
    "params": {**params, "account": "0x1E67cb01969D79B2B895179e4A07D24a839dBb52", "aggregatorId": quote["aggregatorId"]},
})["swap"]

# Next: approve swap["contractToApprove"] for exactly 10 USDT, then run eth_estimateGas and send from `account` right away.
# If the estimate reverts, build again with the next aggregatorId in quote["aggregatorOrder"].
transaction = {"to": swap["to"], "data": swap["data"], "value": int(swap["value"])}
print(transaction, swap["contractToApprove"], swap["minOutAmount"])

{
  "success": true,
  "data": {
    "mode": "single-chain",
    "swap": {
      "to": "0xA91e13e8BfEbbC57ea008bfb2dE94AdD3F484E68",
      "gasLimit": "3000000",
      "contractToApprove": "0xa754451D6d32aB624111e5120409a474D29C2364",
      "data": "0x8ad0a76c0000000000000000000000000000000000000000000000000000000000000020…0000000000000000",
      "minOutAmount": "9891061",
      "outAmount": "9991223",
      "value": "0",
      "estimatedGas": "1500000"
    }
  },
  "meta": {
    "requestId": "Edt_pjJloAMEVjg=",
    "version": "v1",
    "accountType": "integrator",
    "apiKeyId": "00000000-0000-4000-8000-000000000000"
  }
}

{
  "success": true,
  "data": {
    "mode": "cross-chain",
    "swap": {
      "to": "0xA91e13e8BfEbbC57ea008bfb2dE94AdD3F484E68",
      "gasLimit": "323438069024099968",
      "calldata": "0x0044fcef0000000000000000000000000000000000000000000000000000000000000020…0000000000000000",
      "value": "0",
      "estimatedGas": "161719034512049984",
      "contractToApprove": "0x9f770bC130f57C2D1C7Bf9bb4965Ab7c79AdE22E",
      "dexHash": "0x2676e2ee99986d45baa8242aea50a63a90b996df49a22e8975ba756b3706279f"
    }
  },
  "meta": {
    "requestId": "EduNEjxWIAMEZew=",
    "version": "v1",
    "accountType": "integrator",
    "apiKeyId": "00000000-0000-4000-8000-000000000000"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request body",
    "details": [
      {
        "field": "params.account",
        "message": "Invalid input: expected string, received undefined"
      },
      {
        "field": "params.aggregatorId",
        "message": "Invalid input: expected string, received undefined"
      }
    ]
  },
  "meta": {
    "requestId": "ENJ8rjAeoAMEbpQ=",
    "version": "v1",
    "accountType": "integrator",
    "apiKeyId": "00000000-0000-4000-8000-000000000000"
  }
}

{
  "message": "Forbidden"
}

{
  "success": false,
  "error": {
    "code": "SWAP_ERROR",
    "message": "Error fetching single-chain swap",
    "details": [
      {
        "message": "Request failed with status code 400"
      }
    ]
  },
  "meta": {
    "requestId": "E7egOiScoAMEZWw=",
    "version": "v1",
    "accountType": "integrator",
    "apiKeyId": "00000000-0000-4000-8000-000000000000"
  }
}