fix(swap): handle errors from order posting API

apps/cowswap-frontend/src/api/gnosisProtocol/api.ts

@@ -5,7 +5,6 @@ import {
   CowEnv,
   EnrichedOrder,
   NativePriceResponse,
-  OrderBookApiError,
   OrderKind,
   OrderQuoteRequest,
   OrderQuoteResponse,
@@ -25,9 +24,11 @@ import { LegacyFeeQuoteParams as FeeQuoteParams } from 'legacy/state/price/types
 
 import { getAppData } from 'modules/appData'
 
-import { ApiErrorCodes, ApiErrorObject } from 'api/gnosisProtocol/errors/OperatorError'
+import { ApiErrorCodes } from 'api/gnosisProtocol/errors/OperatorError'
 import GpQuoteError, { GpQuoteErrorDetails, mapOperatorErrorToQuoteError } from 'api/gnosisProtocol/errors/QuoteError'
 
+import { getIsOrderBookTypedError } from './getIsOrderBookTypedError'
+
 function getProfileUrl(): Partial<Record<ChainId, string>> {
   if (isLocal || isDev || isPr || isBarn) {
     return {
@@ -165,7 +166,7 @@ export async function getQuote(params: FeeQuoteParams): Promise<OrderQuoteRespon
   }
 
   return orderBookApi.getQuote(quoteParams, { chainId }).catch((error) => {
-    if (isOrderbookTypedError(error)) {
+    if (getIsOrderBookTypedError(error)) {
       const errorObject = mapOperatorErrorToQuoteError(error.body)
 
       return Promise.reject(errorObject ? new GpQuoteError(errorObject) : error)
@@ -175,13 +176,6 @@ export async function getQuote(params: FeeQuoteParams): Promise<OrderQuoteRespon
   })
 }
 
-export type OrderbookTypedError = OrderBookApiError<ApiErrorObject>
-
-function isOrderbookTypedError(e: any): e is OrderbookTypedError {
-  const error = e as OrderbookTypedError
-  return error.body.errorType !== undefined && error.body.description !== undefined
-}
-
 export async function getOrder(chainId: ChainId, orderId: string, env?: CowEnv): Promise<EnrichedOrder | null> {
   const contextOverride = {
     chainId,

apps/cowswap-frontend/src/api/gnosisProtocol/getIsOrderBookTypedError.ts

@@ -0,0 +1,10 @@
+import { OrderBookApiError } from '@cowprotocol/cow-sdk'
+
+import { ApiErrorObject } from './errors/OperatorError'
+
+export type OrderBookTypedError = OrderBookApiError<ApiErrorObject>
+
+export function getIsOrderBookTypedError(e: any): e is OrderBookTypedError {
+  const error = e as OrderBookTypedError
+  return error.body.errorType !== undefined && error.body.description !== undefined
+}

apps/cowswap-frontend/src/api/gnosisProtocol/index.ts

@@ -2,6 +2,7 @@ import * as realApi from './api'
 import * as mockApi from './mock'
 
 export type { UnsupportedToken, OrderID } from './api'
+export { getIsOrderBookTypedError } from './getIsOrderBookTypedError'
 
 const useMock = process.env.REACT_APP_MOCK === 'true'
 

apps/cowswap-frontend/src/modules/trade/utils/swapErrorHelper.ts

@@ -1,11 +1,25 @@
 import { getProviderErrorMessage, isRejectRequestProviderError } from '@cowprotocol/common-utils'
 
+import { getIsOrderBookTypedError } from 'api/gnosisProtocol'
+
 export const USER_SWAP_REJECTED_ERROR = 'User rejected signing the order'
 
 export function getSwapErrorMessage(error: Error): string {
   if (isRejectRequestProviderError(error)) {
     return USER_SWAP_REJECTED_ERROR
   } else {
-    return getProviderErrorMessage(error)
+    const defaultErrorMessage = getProviderErrorMessage(error)
+
+    if (getIsOrderBookTypedError(error)) {
+      return capitalizeFirstLetter(error.body?.description) || defaultErrorMessage
+    }
+
+    return defaultErrorMessage
   }
 }
+
+function capitalizeFirstLetter(str: string): string {
+  if (!str) return str
+
+  return str.charAt(0).toUpperCase() + str.slice(1)
+}