# Submit an RFQ

RFQ works when a buyer invites sellers to bid on specific amount of an asset. The buyer then uses these bids to determine the best available price and service level. The sellers use automated, programmatic response software to quote at their fair value price.

## Step 1: Request for quote

To initiate a swap, first determine if the DEX has the necessary allowance to access the tokens.

**API URL**:  [<mark style="color:blue;">`https://api.expand.network/dex/createorder`</mark>](/integrations/dex-and-dex-aggregators/uniswap-x.md#createorder)

***

**Sample Request:**

```json
{
    "dexId": "1900",
    "amountIn": "100000",
    "path": [
        "0xe0C9275E44Ea80eF17579d33c55136b7DA269aEb",
        "0xdFCeA9088c8A88A76FF74892C1457C17dfeef9C1"
    ],
    "to": "0xa67E9B68c41b0f26184D64C26e0b2B81466E5994",
    "from": "0xa67E9B68c41b0f26184D64C26e0b2B81466E5994",
    "decayStartTime": "1707110948",
    "decayEndTime": "1707113948",
    "amountOutMin": "10000000000",
    "deadline": "1707313948"
}
```

***

**Sample Response:**&#x20;

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "domain": {
            "name": "Permit2",
            "chainId": "1",
            "verifyingContract": "0x000000000022d473030f116ddee9f6b43ac78ba3"
        },
        "types": {
            "PermitWitnessTransferFrom": [
                {
                    "name": "permitted",
                    "type": "TokenPermissions"
                },
                {
                    "name": "spender",
                    "type": "address"
                },
                {
                    "name": "nonce",
                    "type": "uint256"
                },
                {
                    "name": "deadline",
                    "type": "uint256"
                },
                {
                    "name": "witness",
                    "type": "ExclusiveDutchOrder"
                }
            ],
            "TokenPermissions": [
                {
                    "name": "token",
                    "type": "address"
                },
                {
                    "name": "amount",
                    "type": "uint256"
                }
            ],
            "ExclusiveDutchOrder": [
                {
                    "name": "info",
                    "type": "OrderInfo"
                },
                {
                    "name": "decayStartTime",
                    "type": "uint256"
                },
                {
                    "name": "decayEndTime",
                    "type": "uint256"
                },
                {
                    "name": "exclusiveFiller",
                    "type": "address"
                },
                {
                    "name": "exclusivityOverrideBps",
                    "type": "uint256"
                },
                {
                    "name": "inputToken",
                    "type": "address"
                },
                {
                    "name": "inputStartAmount",
                    "type": "uint256"
                },
                {
                    "name": "inputEndAmount",
                    "type": "uint256"
                },
                {
                    "name": "outputs",
                    "type": "DutchOutput[]"
                }
            ],
            "OrderInfo": [
                {
                    "name": "reactor",
                    "type": "address"
                },
                {
                    "name": "swapper",
                    "type": "address"
                },
                {
                    "name": "nonce",
                    "type": "uint256"
                },
                {
                    "name": "deadline",
                    "type": "uint256"
                },
                {
                    "name": "additionalValidationContract",
                    "type": "address"
                },
                {
                    "name": "additionalValidationData",
                    "type": "bytes"
                }
            ],
            "DutchOutput": [
                {
                    "name": "token",
                    "type": "address"
                },
                {
                    "name": "startAmount",
                    "type": "uint256"
                },
                {
                    "name": "endAmount",
                    "type": "uint256"
                },
                {
                    "name": "recipient",
                    "type": "address"
                }
            ]
        },
        "values": {
            "permitted": {
                "token": "0xe0C9275E44Ea80eF17579d33c55136b7DA269aEb",
                "amount": {
                    "type": "BigNumber",
                    "hex": "0x0186a0"
                }
            },
            "spender": "0x6000da47483062A0D734Ba3dc7576Ce6A0B645C4",
            "nonce": {
                "type": "BigNumber",
                "hex": "0x01"
            },
            "deadline": "1707313948",
            "witness": {
                "info": {
                    "reactor": "0x6000da47483062A0D734Ba3dc7576Ce6A0B645C4",
                    "swapper": "0xa67E9B68c41b0f26184D64C26e0b2B81466E5994",
                    "nonce": {
                        "type": "BigNumber",
                        "hex": "0x01"
                    },
                    "deadline": "1707313948",
                    "additionalValidationContract": "0x0000000000000000000000000000000000000000",
                    "additionalValidationData": "0x"
                },
                "decayStartTime": "1707110948",
                "decayEndTime": "1707113948",
                "exclusiveFiller": "0x0000000000000000000000000000000000000000",
                "exclusivityOverrideBps": {
                    "type": "BigNumber",
                    "hex": "0x00"
                },
                "inputToken": "0xe0C9275E44Ea80eF17579d33c55136b7DA269aEb",
                "inputStartAmount": {
                    "type": "BigNumber",
                    "hex": "0x0186a0"
                },
                "inputEndAmount": {
                    "type": "BigNumber",
                    "hex": "0x0186a0"
                },
                "outputs": [
                    {
                        "token": "0xdFCeA9088c8A88A76FF74892C1457C17dfeef9C1",
                        "startAmount": {
                            "type": "BigNumber",
                            "hex": "0x02363e7f00"
                        },
                        "endAmount": {
                            "type": "BigNumber",
                            "hex": "0x02363e7f00"
                        },
                        "recipient": "0xa67E9B68c41b0f26184D64C26e0b2B81466E5994"
                    }
                ]
            }
        },
        "serializedOrder": "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"
    }
}
```

## Step 2: Generate the signature off-chain

This is an off-chain process that the user needs to perform at their end.

***

**Sample Request:**

```javascript
const { ethers } = require('ethers');    
const provider = new ethers.providers.JsonRpcProvider("https://mainnet.infura.io/v3/<rpc key>");

const signer = new ethers.Wallet('<private key>', provider);
const signature = await signer._signTypedData(domain, types, values);
```

{% hint style="info" %}
Expand.network will soon support publishing orders on Uniswap X.
{% endhint %}

## Step 3: Execute the transaction&#x20;

This can be done using the following API endpoint:&#x20;

**API URL**:  [<mark style="color:blue;">`https://api.expand.network/dex/swap`</mark>](/integrations/dex-and-dex-aggregators/uniswap-x.md#swap)

***

**Sample Request:**

```json
{
    "dexId": "1900",
    "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
    "gas": "173376",
    "signature": "0xc2f9557dcc27ff17ecf91211a6a0af6ead44acf6a7d7322d0f40afefca596a843b5d95698332867a11eb3a3f9984ac3639581b765138fc0cc88322a889dffd1d1b",
    "serializedOrder": "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"
}
```

***

**Sample Response:**&#x20;

```json
{
    "status": 200,
    "msg": "success",
    "data": {
        "chainId": "1",
        "from": "0x63056E00436Da25BcF48A40dfBbDcc7089351006",
        "to": "0x6000da47483062A0D734Ba3dc7576Ce6A0B645C4",
        "gas": "173376",
        "value": "0",
        "data": "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"
    }
}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.expand.network/how-to/submit-an-rfq.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.