1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
import { assert } from '@0xproject/assert';
import { schemas } from '@0xproject/json-schemas';
import * as _ from 'lodash';
import { OrderbookChannelMessage, OrderbookChannelMessageTypes } from '../types';
import { relayerResponseJsonParsers } from './relayer_response_json_parsers';
export const orderbookChannelMessageParser = {
parse(utf8Data: string): OrderbookChannelMessage {
const messageObj = JSON.parse(utf8Data);
const type: string = _.get(messageObj, 'type');
assert.assert(!_.isUndefined(type), `Message is missing a type parameter: ${utf8Data}`);
assert.isString('type', type);
switch (type) {
case OrderbookChannelMessageTypes.Snapshot: {
assert.doesConformToSchema('message', messageObj, schemas.relayerApiOrderbookChannelSnapshotSchema);
const orderbookJson = messageObj.payload;
const orderbook = relayerResponseJsonParsers.parseOrderbookResponseJson(orderbookJson);
return _.assign(messageObj, { payload: orderbook });
}
case OrderbookChannelMessageTypes.Update: {
assert.doesConformToSchema('message', messageObj, schemas.relayerApiOrderbookChannelUpdateSchema);
const orderJson = messageObj.payload;
const order = relayerResponseJsonParsers.parseOrderJson(orderJson);
return _.assign(messageObj, { payload: order });
}
default: {
return {
type: OrderbookChannelMessageTypes.Unknown,
requestId: 0,
payload: undefined,
};
}
}
},
};
|
