76 lines
2.7 KiB
TypeScript
76 lines
2.7 KiB
TypeScript
import { BigNumber, logUtils } from '@0xproject/utils';
|
|
import * as _ from 'lodash';
|
|
|
|
import { portalOrderSchema } from 'ts/schemas/portal_order_schema';
|
|
import { validator } from 'ts/schemas/validator';
|
|
import { PortalOrder } from 'ts/types';
|
|
|
|
export const orderParser = {
|
|
parseQueryString(queryString: string): PortalOrder | undefined {
|
|
if (queryString.length === 0) {
|
|
return undefined;
|
|
}
|
|
const queryParams = queryString.substring(1).split('&');
|
|
const orderQueryParam = _.find(queryParams, queryParam => {
|
|
const queryPair = queryParam.split('=');
|
|
return queryPair[0] === 'order';
|
|
});
|
|
if (_.isUndefined(orderQueryParam)) {
|
|
return undefined;
|
|
}
|
|
const orderPair = orderQueryParam.split('=');
|
|
if (orderPair.length !== 2) {
|
|
return undefined;
|
|
}
|
|
const order = JSON.parse(decodeURIComponent(orderPair[1]));
|
|
const validationResult = validator.validate(order, portalOrderSchema);
|
|
if (validationResult.errors.length > 0) {
|
|
logUtils.log(`Invalid shared order: ${validationResult.errors}`);
|
|
return undefined;
|
|
}
|
|
const signedOrder = _.get(order, 'signedOrder');
|
|
const convertedSignedOrder = convertOrderStringFieldsToBigNumber(signedOrder);
|
|
const result = {
|
|
...order,
|
|
signedOrder: convertedSignedOrder,
|
|
};
|
|
return result;
|
|
},
|
|
parseJsonString(orderJson: string): PortalOrder {
|
|
const order = JSON.parse(orderJson);
|
|
const signedOrder = _.get(order, 'signedOrder');
|
|
const convertedSignedOrder = convertOrderStringFieldsToBigNumber(signedOrder);
|
|
const result = {
|
|
...order,
|
|
signedOrder: convertedSignedOrder,
|
|
};
|
|
return result;
|
|
},
|
|
};
|
|
|
|
// TODO: consolidate this function with that in typeConverters in @0xproject/connect
|
|
function convertOrderStringFieldsToBigNumber(order: any): any {
|
|
return convertStringsFieldsToBigNumbers(order, [
|
|
'makerAssetAmount',
|
|
'takerAssetAmount',
|
|
'makerFee',
|
|
'takerFee',
|
|
'expirationTimeSeconds',
|
|
'salt',
|
|
]);
|
|
}
|
|
|
|
// TODO: consolidate this function with that in typeConverters in @0xproject/connect
|
|
function convertStringsFieldsToBigNumbers(obj: any, fields: string[]): any {
|
|
const result = _.assign({}, obj);
|
|
_.each(fields, field => {
|
|
_.update(result, field, (value: string) => {
|
|
if (_.isUndefined(value)) {
|
|
throw new Error(`Could not find field '${field}' while converting string fields to BigNumber.`);
|
|
}
|
|
return new BigNumber(value);
|
|
});
|
|
});
|
|
return result;
|
|
}
|