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import { BigNumber } from '@0xproject/utils';
import * as _ from 'lodash';
import { APIOrder } from '../types';
export const typeConverters = {
convertOrderbookStringFieldsToBigNumber(orderbook: any): any {
const bids = _.get(orderbook, 'bids', []);
const asks = _.get(orderbook, 'asks', []);
const convertedBids = {
...bids,
records: bids.records.map((order: any) => typeConverters.convertAPIOrderStringFieldsToBigNumber(order)),
};
const convertedAsks = {
...asks,
records: asks.records.map((order: any) => typeConverters.convertAPIOrderStringFieldsToBigNumber(order)),
};
return {
bids: convertedBids,
asks: convertedAsks,
};
},
convertAPIOrderStringFieldsToBigNumber(apiOrder: any): APIOrder {
return { ...apiOrder, order: typeConverters.convertOrderStringFieldsToBigNumber(apiOrder.order) };
},
convertOrderStringFieldsToBigNumber(order: any): any {
return typeConverters.convertStringsFieldsToBigNumbers(order, [
'makerAssetAmount',
'takerAssetAmount',
'makerFee',
'takerFee',
'expirationTimeSeconds',
'salt',
]);
},
convertStringsFieldsToBigNumbers(obj: any, fields: string[]): any {
const result = _.assign({}, obj);
_.each(fields, field => {
_.update(result, field, (value: string) => {
if (_.isUndefined(value)) {
throw new Error(`Could not find field '${field}' while converting string fields to BigNumber.`);
}
return new BigNumber(value);
});
});
return result;
},
};
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