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This commit is contained in:
Daniel Pyrathon 2020-10-16 14:47:37 -07:00
parent c969a8652a
commit a8cbd1a16c
1 changed files with 13 additions and 30 deletions
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43
packages/asset-swapper/src/utils/quote_requestor.ts
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@ -44,29 +44,6 @@ function getTokenAddressOrThrow(assetData: string): string {
throw new Error(`Decoded asset data (${JSON.stringify(decodedAssetData)}) does not contain a token address`);
}
function inferQueryParams(
marketOperation: MarketOperation,
makerAssetData: string,
takerAssetData: string,
assetFillAmount: BigNumber,
): Pick<TakerRequest, 'buyTokenAddress' | 'sellTokenAddress' | 'buyAmountBaseUnits' | 'sellAmountBaseUnits'> {
if (marketOperation === MarketOperation.Buy) {
return {
buyTokenAddress: getTokenAddressOrThrow(makerAssetData),
sellTokenAddress: getTokenAddressOrThrow(takerAssetData),
buyAmountBaseUnits: assetFillAmount,
sellAmountBaseUnits: undefined,
};
} else {
return {
buyTokenAddress: getTokenAddressOrThrow(makerAssetData),
sellTokenAddress: getTokenAddressOrThrow(takerAssetData),
sellAmountBaseUnits: assetFillAmount,
buyAmountBaseUnits: undefined,
};
}
}
function hasExpectedAssetData(
expectedMakerAssetData: string,
expectedTakerAssetData: string,
@ -119,19 +96,25 @@ export class QuoteRequestor {
assetFillAmount: BigNumber,
comparisonPrice?: BigNumber,
): TakerRequestQueryParams {
const { buyAmountBaseUnits, sellAmountBaseUnits, ...rest } = inferQueryParams(
marketOperation,
makerAssetData,
takerAssetData,
assetFillAmount,
);
const buyTokenAddress = getTokenAddressOrThrow(makerAssetData);
const sellTokenAddress = getTokenAddressOrThrow(takerAssetData);
const { buyAmountBaseUnits, sellAmountBaseUnits } = marketOperation === MarketOperation.Buy
? {
buyAmountBaseUnits: assetFillAmount,
sellAmountBaseUnits: undefined,
} : {
sellAmountBaseUnits: assetFillAmount,
buyAmountBaseUnits: undefined,
};
const requestParamsWithBigNumbers: Pick<
TakerRequestQueryParams,
'buyTokenAddress' | 'sellTokenAddress' | 'takerAddress' | 'comparisonPrice'
> = {
takerAddress,
comparisonPrice: comparisonPrice === undefined ? undefined : comparisonPrice.toString(),
...rest,
buyTokenAddress,
sellTokenAddress,
};
// convert BigNumbers to strings