# Route Request Parameters

Building with Squid, fundamentally starts with requesting a route.

The `getRoute` type is used to define the parameters required for bridging assets between different blockchain networks.

```typescript


const params = {
  fromChain: number | string; //the chainID assets are being bridged FROM
  toChain: number | string; //the chainID assets are being bridged TO
  fromToken: string;  //the asset address being swapped FROM, "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE" for native assets
  toToken: string;  // The asset address being swapped TO, "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE" for native assets
  fromAmount: string; // The unadjusted decimal amount of assets to send. Mutually exclusive with toAmount.
  toAmount: string; // The unadjusted decimal amount of assets to receive (exact output). Mutually exclusive with fromAmount. Requires ExactOutputRouting feature flag.
  fromAddress: string; // The address FROM which assets are being sent to be bridged
  toAddress: string; // The address TO which bridged assets will be sent to
  slippage: number; //OPTIONAL, If set it determines the max slippage across the route (0.01-99.99) 1 = 1% slippage.
  quoteOnly: boolean; //OPTIONAL, If true, returns only a quote for the route. Omits transaction data needed for execution. Defaults to false
  fallbackAddresses?:{ 
    //For Cosmos routes where either the source or destination chains are not of coinType 118, the SDK necessitates an additional argument. 
    ///This argument is fallbackAddresses, which is an array of objects containing an address and its associated coin type.
    //See more here
    coinType: number;
    address: string;
  };
};

```

## Parameter Summaries

| Parameter             | Type                      | Required                         | Description                                                                                                                                                                                                                                |
| --------------------- | ------------------------- | -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `fromChain`           | `number \| string`        | Yes                              | The chain ID of the network from which assets are being bridged.                                                                                                                                                                           |
| `toChain`             | `number \| string`        | Yes                              | The chain ID of the network to which assets are being bridged.                                                                                                                                                                             |
| `fromToken`           | `string`                  | Yes                              | The address of the asset being swapped from. Use `0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE` for native assets.                                                                                                                           |
| `toToken`             | `string`                  | Yes                              | The address of the asset being swapped to. Use `0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE` for native assets.                                                                                                                             |
| `fromAmount`          | `string`                  | One of `fromAmount` / `toAmount` | The unadjusted decimal amount of assets to send. Mutually exclusive with `toAmount`.                                                                                                                                                       |
| `toAmount`            | `string`                  | One of `fromAmount` / `toAmount` | The unadjusted decimal amount of assets to receive (exact output). The system calculates the required `fromAmount`. Requires `ExactOutputRouting` feature flag. See [Exact Output](/api-and-sdk-integration/key-concepts/exact-output.md). |
| `fromAddress`         | `string`                  | Yes                              | The address from which assets are being sent for bridging.                                                                                                                                                                                 |
| `toAddress`           | `string`                  | Yes                              | The address to which bridged assets will be sent.                                                                                                                                                                                          |
| `slippage`            | `number`                  | No                               | Maximum allowable slippage across the route (0.01–99.99). A value of 1 = 1% slippage.                                                                                                                                                      |
| `quoteOnly`           | `boolean`                 | No                               | If true, returns only a quote without transaction data. Defaults to false.                                                                                                                                                                 |
| `customContractCalls` | `ContractCall[]`          | No                               | Custom contract calls to be included in the route.                                                                                                                                                                                         |
| `fallbackAddresses`   | `{ coinType, address }[]` | No                               | For Cosmos routes where source or destination chains are not coinType 118.                                                                                                                                                                 |
| `bypassGuardrails`    | `boolean`                 | No                               | Waives Squid's slippage guardrails. **If set to true, the integrator is liable for any loss of funds during the route.**                                                                                                                   |


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