38 lines
1.5 KiB
TypeScript
38 lines
1.5 KiB
TypeScript
import { assert } from '@0xproject/assert';
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import { schemas } from '@0xproject/json-schemas';
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import * as _ from 'lodash';
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import { OrderbookChannelMessage, OrderbookChannelMessageTypes } from '../types';
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import { typeConverters } from './type_converters';
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export const orderbookChannelMessageParsers = {
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parser(utf8Data: string): OrderbookChannelMessage {
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const messageObj = JSON.parse(utf8Data);
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const type: string = _.get(messageObj, 'type');
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assert.assert(!_.isUndefined(type), `Message is missing a type parameter: ${utf8Data}`);
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assert.isString('type', type);
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switch (type) {
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case OrderbookChannelMessageTypes.Snapshot: {
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assert.doesConformToSchema('message', messageObj, schemas.relayerApiOrderbookChannelSnapshotSchema);
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const orderbook = messageObj.payload;
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typeConverters.convertOrderbookStringFieldsToBigNumber(orderbook);
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return messageObj;
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}
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case OrderbookChannelMessageTypes.Update: {
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assert.doesConformToSchema('message', messageObj, schemas.relayerApiOrderbookChannelUpdateSchema);
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const order = messageObj.payload;
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typeConverters.convertOrderStringFieldsToBigNumber(order);
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return messageObj;
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}
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default: {
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return {
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type: OrderbookChannelMessageTypes.Unknown,
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requestId: 0,
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payload: undefined,
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};
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}
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}
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},
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};
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