Class: OrderBookApi
The CoW Protocol OrderBook API client.
This is the main entry point for interacting with the CoW Protocol OrderBook API. The main advantage of using this client is the batteries-included approach to interacting with the API. It handles:
- Environment configuration (mainnet, staging, etc.)
- Rate limiting
- Retries
- Backoff
- Error handling
- Request signing
- Request validation
Example
import { OrderBookApi, OrderSigningUtils, SupportedChainId } from '@cowprotocol/cow-sdk'
import { Web3Provider } from '@ethersproject/providers'
const account = 'YOUR_WALLET_ADDRESS'
const chainId = 100 // Gnosis chain
const provider = new Web3Provider(window.ethereum)
const signer = provider.getSigner()
const quoteRequest = {
sellToken: '0x6a023ccd1ff6f2045c3309768ead9e68f978f6e1', // WETH gnosis chain
buyToken: '0x9c58bacc331c9aa871afd802db6379a98e80cedb', // GNO gnosis chain
from: account,
receiver: account,
sellAmountBeforeFee: (0.4 * 10 ** 18).toString(), // 0.4 WETH
kind: OrderQuoteSide.kind.SELL,
}
const orderBookApi = new OrderBookApi({ chainId: SupportedChainId.GNOSIS_CHAIN })
async function main() {
const { quote } = await orderBookApi.getQuote(quoteRequest)
const orderSigningResult = await OrderSigningUtils.signOrder(quote, chainId, signer)
const orderId = await orderBookApi.sendOrder({ ...quote, ...orderSigningResult })
const order = await orderBookApi.getOrder(orderId)
const trades = await orderBookApi.getTrades({ orderId })
const orderCancellationSigningResult = await OrderSigningUtils.signOrderCancellations([orderId], chainId, signer)
const cancellationResult = await orderBookApi.sendSignedOrderCancellations({...orderCancellationSigningResult, orderUids: [orderId] })
console.log('Results: ', { orderId, order, trades, orderCancellationSigningResult, cancellationResult })
}
See
- Swagger documentation https://api.cow.fi/docs/#/
- OrderBook API https://github.com/cowprotocol/services
Constructors
constructor
• new OrderBookApi(context?): OrderBookApi
Creates a new instance of the CoW Protocol OrderBook API client.
Parameters
| Name | Type | Description |
|---|---|---|
context | Partial<ApiContext> | The API context to use. If not provided, the default context will be used. |
Returns
Defined in
external/cow-sdk/src/order-book/api.ts:138
Properties
context
• context: ApiContext
Defined in
external/cow-sdk/src/order-book/api.ts:130
rateLimiter
• Private rateLimiter: RateLimiter
Defined in
external/cow-sdk/src/order-book/api.ts:132
Methods
fetch
▸ fetch<T>(params, contextOverride?): Promise<T>
Make a request to the API.
Type parameters
| Name |
|---|
T |
Parameters
| Name | Type | Description |
|---|---|---|
params | FetchParams | The parameters for the request. |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<T>
The response from the API.
Defined in
external/cow-sdk/src/order-book/api.ts:411
getApiBaseUrls
▸ getApiBaseUrls(env): ApiBaseUrls
Get the base URLs for the API endpoints given the environment.
Parameters
| Name | Type | Description |
|---|---|---|
env | CowEnv | The environment to get the base URLs for. |
Returns
The base URLs for the API endpoints.
Defined in
external/cow-sdk/src/order-book/api.ts:399
getAppData
▸ getAppData(appDataHash, contextOverride?): Promise<AppDataObject>
Retrieve the full app data for a given app data hash.
Parameters
| Name | Type | Description |
|---|---|---|
appDataHash | string | bytes32 hash of the app data |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<AppDataObject>
Full app data that was uploaded
Defined in
external/cow-sdk/src/order-book/api.ts:329
getContextWithOverride
▸ getContextWithOverride(contextOverride?): ApiContext
Apply an override to the context for a request.
Parameters
| Name | Type | Description |
|---|---|---|
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
New context with the override applied.
Defined in
external/cow-sdk/src/order-book/api.ts:390
getNativePrice
▸ getNativePrice(tokenAddress, contextOverride?): Promise<NativePriceResponse>
Get the native price of a token.
NOTE: The native price is the price of the token in the native currency of the chain. For example, on Ethereum this would be the price of the token in ETH.
Parameters
| Name | Type | Description |
|---|---|---|
tokenAddress | string | The address of the ERC-20 token. |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<NativePriceResponse>
The native price of the token.
Defined in
external/cow-sdk/src/order-book/api.ts:309
getOrder
▸ getOrder(orderUid, contextOverride?): Promise<EnrichedOrder>
Get an order by its unique identifier, orderUid.
Parameters
| Name | Type | Description |
|---|---|---|
orderUid | string | The unique identifier of the order. |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<EnrichedOrder>
The order matching the request.
Defined in
external/cow-sdk/src/order-book/api.ts:224
getOrderLink
▸ getOrderLink(orderUid, contextOverride?): string
Generate an API endpoint for an order by its unique identifier, orderUid.
Parameters
| Name | Type | Description |
|---|---|---|
orderUid | string | The unique identifier of the order. |
contextOverride? | Partial<ApiContext> | Optional context override for this request. |
Returns
string
The API endpoint to get the order.
Defined in
external/cow-sdk/src/order-book/api.ts:380
getOrderMultiEnv
▸ getOrderMultiEnv(orderUid, contextOverride?): Promise<EnrichedOrder>
Attempt to get an order by its unique identifier, orderUid, from multiple environments.
NOTE: The environment refers to either prod or staging. This allows a conveience method to
attempt to get an order from both environments, in the event that the order is not found in the
environment specified in the context.
Parameters
| Name | Type | Description |
|---|---|---|
orderUid | string | The unique identifier of the order. |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<EnrichedOrder>
The order matching the request.
Throws
If the order is not found in any of the environments.
Defined in
external/cow-sdk/src/order-book/api.ts:241
getOrders
▸ getOrders(request, contextOverride?): Promise<EnrichedOrder[]>
Get a list of orders for a given owner.
Parameters
| Name | Type | Description |
|---|---|---|
request | GetOrdersRequest | The request parameters with request.offset = 0 and request.limit = 1000 by default. |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<EnrichedOrder[]>
A list of orders matching the request.
See
Defined in
external/cow-sdk/src/order-book/api.ts:186
getQuote
▸ getQuote(requestBody, contextOverride?): Promise<OrderQuoteResponse>
Get a quote for an order. This allows for the calculation of the total cost of an order, including fees, before signing and submitting.
Parameters
| Name | Type | Description |
|---|---|---|
requestBody | OrderQuoteRequest | The parameters for the order quote request. |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<OrderQuoteResponse>
A hydrated order matching the request ready to be signed.
Defined in
external/cow-sdk/src/order-book/api.ts:269
getSolverCompetition
▸ getSolverCompetition(auctionId, contextOverride?): Promise<SolverCompetitionResponse>
Given an auction id or tx hash, get the details of the solver competition for that auction.
Parameters
| Name | Type | Description |
|---|---|---|
auctionId | number | - |
contextOverride? | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<SolverCompetitionResponse>
An object containing the solver competition details
Defined in
external/cow-sdk/src/order-book/api.ts:351
▸ getSolverCompetition(txHash, contextOverride?): Promise<SolverCompetitionResponse>
Given an auction id or tx hash, get the details of the solver competition for that auction.
Parameters
| Name | Type | Description |
|---|---|---|
txHash | string | - |
contextOverride? | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<SolverCompetitionResponse>
An object containing the solver competition details
Defined in
external/cow-sdk/src/order-book/api.ts:353
getTotalSurplus
▸ getTotalSurplus(address, contextOverride?): Promise<TotalSurplus>
Given a user's address, get the total surplus that they have earned.
Parameters
| Name | Type | Description |
|---|---|---|
address | string | The user's address |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<TotalSurplus>
Calculated user's surplus
Defined in
external/cow-sdk/src/order-book/api.ts:319
getTrades
▸ getTrades(request, contextOverride?): Promise<Trade[]>
Get all the trades for either an owner OR orderUid.
Given that an order may be partially fillable, it is possible that a discrete order (orderUid)
may have multiple trades. Therefore, this method returns a list of trades, either for all the orders
of a given owner, or for a discrete order (orderUid).
Parameters
| Name | Type | Description |
|---|---|---|
request | Object | Either an owner or an orderUid MUST be specified. |
request.orderUid? | string | - |
request.owner? | string | - |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<Trade[]>
A list of trades matching the request.
Defined in
external/cow-sdk/src/order-book/api.ts:163
getTxOrders
▸ getTxOrders(txHash, contextOverride?): Promise<EnrichedOrder[]>
Get a list of orders from a given settlement transaction hash.
Parameters
| Name | Type | Description |
|---|---|---|
txHash | string | The transaction hash. |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<EnrichedOrder[]>
A list of orders matching the request.
See
Defined in
external/cow-sdk/src/order-book/api.ts:209
getVersion
▸ getVersion(contextOverride?): Promise<string>
Get the version of the API.
Parameters
| Name | Type | Description |
|---|---|---|
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<string>
The version of the API.
See
https://api.cow.fi/docs/#/default/get_api_v1_version
Defined in
external/cow-sdk/src/order-book/api.ts:149
sendOrder
▸ sendOrder(requestBody, contextOverride?): Promise<string>
Submit an order to the order book.
Parameters
| Name | Type | Description |
|---|---|---|
requestBody | OrderCreation | The signed order to be submitted. |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<string>
The unique identifier of the order.
Defined in
external/cow-sdk/src/order-book/api.ts:296
sendSignedOrderCancellations
▸ sendSignedOrderCancellations(requestBody, contextOverride?): Promise<void>
Cancel one or more orders.
NOTE: Cancellation is on a best-effort basis. Orders that are already in the process of being settled
(ie. transaction has been submitted to chain by the solver) cannot not be cancelled.
CAUTION: This method can only be used to cancel orders that were signed using EIP-712 or eth_sign (EIP-191).
Parameters
| Name | Type | Description |
|---|---|---|
requestBody | OrderCancellations | Orders to be cancelled and signed instructions to cancel them. |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<void>
A list of order unique identifiers that were successfully cancelled.
Defined in
external/cow-sdk/src/order-book/api.ts:283
uploadAppData
▸ uploadAppData(appDataHash, fullAppData, contextOverride?): Promise<AppDataObject>
Upload the full app data that corresponds to a given app data hash.
Parameters
| Name | Type | Description |
|---|---|---|
appDataHash | string | bytes32 hash of the app data |
fullAppData | string | Full app data to be uploaded |
contextOverride | Partial<ApiContext> | Optional context override for this request. |
Returns
Promise<AppDataObject>
The string encoding of the full app data that was uploaded.
Defined in
external/cow-sdk/src/order-book/api.ts:340