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authorFabio Berger <me@fabioberger.com>2017-11-23 04:21:07 +0800
committerFabio Berger <me@fabioberger.com>2017-11-23 04:21:07 +0800
commitf5e0fd8de5a3201ac17a8dde68aec3314674f1c4 (patch)
tree8001915cd933e1d5eaff1388e7dc842d602aa786 /packages/website/ts
parent353b6f3d6df1e13ba76f86287195f7c0ce7cecc7 (diff)
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Upgrade to latest 0x.js version and refactor subscriptions to use latest interface
Diffstat (limited to 'packages/website/ts')
-rw-r--r--packages/website/ts/blockchain.ts64
-rw-r--r--packages/website/ts/local_storage/trade_history_storage.tsx14
2 files changed, 53 insertions, 25 deletions
diff --git a/packages/website/ts/blockchain.ts b/packages/website/ts/blockchain.ts
index d891acdb6..3a1b62164 100644
--- a/packages/website/ts/blockchain.ts
+++ b/packages/website/ts/blockchain.ts
@@ -27,7 +27,7 @@ import contract = require('truffle-contract');
import ethUtil = require('ethereumjs-util');
import ProviderEngine = require('web3-provider-engine');
import FilterSubprovider = require('web3-provider-engine/subproviders/filters');
-import {TransactionSubmitted} from 'ts/components/flash_messages/transaction_submitted';
+import { TransactionSubmitted } from 'ts/components/flash_messages/transaction_submitted';
import {TokenSendCompleted} from 'ts/components/flash_messages/token_send_completed';
import {RedundantRPCSubprovider} from 'ts/subproviders/redundant_rpc_subprovider';
import {InjectedWeb3SubProvider} from 'ts/subproviders/injected_web3_subprovider';
@@ -496,7 +496,16 @@ export class Blockchain {
this.stopWatchingExchangeLogFillEventsAsync(); // fire and forget
return;
} else {
- await this.addFillEventToTradeHistoryAsync(decodedLogEvent);
+ if (this.doesLogEventInvolveUser(decodedLogEvent)) {
+ return; // We aren't interested in the fill event
+ }
+ this.updateLatestFillsBlockIfNeeded(decodedLogEvent.blockNumber);
+ const fill = await this.convertDecodedLogToFillAsync(decodedLogEvent);
+ if (decodedLogEvent.removed) {
+ tradeHistoryStorage.removeFillFromUser(this.userAddress, this.networkId, fill);
+ } else {
+ tradeHistoryStorage.addFillToUser(this.userAddress, this.networkId, fill);
+ }
}
});
}
@@ -510,30 +519,16 @@ export class Blockchain {
ExchangeEvents.LogFill, subscriptionOpts, indexFilterValues,
);
for (const decodedLog of decodedLogs) {
- console.log('decodedLog', decodedLog);
- await this.addFillEventToTradeHistoryAsync(decodedLog);
+ if (this.doesLogEventInvolveUser(decodedLog)) {
+ continue; // We aren't interested in the fill event
+ }
+ this.updateLatestFillsBlockIfNeeded(decodedLog.blockNumber);
+ const fill = await this.convertDecodedLogToFillAsync(decodedLog);
+ tradeHistoryStorage.addFillToUser(this.userAddress, this.networkId, fill);
}
}
- private async addFillEventToTradeHistoryAsync(decodedLog: LogWithDecodedArgs<LogFillContractEventArgs>) {
+ private async convertDecodedLogToFillAsync(decodedLog: LogWithDecodedArgs<LogFillContractEventArgs>) {
const args = decodedLog.args as LogFillContractEventArgs;
- const isUserMakerOrTaker = args.maker === this.userAddress ||
- args.taker === this.userAddress;
- if (!isUserMakerOrTaker) {
- return; // We aren't interested in the fill event
- }
- const isBlockPending = _.isNull(decodedLog.blockNumber);
- if (!isBlockPending) {
- // Hack: I've observed the behavior where a client won't register certain fill events
- // and lowering the cache blockNumber fixes the issue. As a quick fix for now, simply
- // set the cached blockNumber 50 below the one returned. This way, upon refreshing, a user
- // would still attempt to re-fetch events from the previous 50 blocks, but won't need to
- // re-fetch all events in all blocks.
- // TODO: Debug if this is a race condition, and apply a more precise fix
- const blockNumberToSet = decodedLog.blockNumber - BLOCK_NUMBER_BACK_TRACK < 0 ?
- 0 :
- decodedLog.blockNumber - BLOCK_NUMBER_BACK_TRACK;
- tradeHistoryStorage.setFillsLatestBlock(this.userAddress, this.networkId, blockNumberToSet);
- }
const blockTimestamp = await this.web3Wrapper.getBlockTimestampAsync(decodedLog.blockHash);
const fill = {
filledTakerTokenAmount: args.filledTakerTokenAmount,
@@ -549,7 +544,28 @@ export class Blockchain {
transactionHash: decodedLog.transactionHash,
blockTimestamp,
};
- tradeHistoryStorage.addFillToUser(this.userAddress, this.networkId, fill);
+ return fill;
+ }
+ private doesLogEventInvolveUser(decodedLog: LogWithDecodedArgs<LogFillContractEventArgs>) {
+ const args = decodedLog.args as LogFillContractEventArgs;
+ const isUserMakerOrTaker = args.maker === this.userAddress ||
+ args.taker === this.userAddress;
+ return isUserMakerOrTaker;
+ }
+ private updateLatestFillsBlockIfNeeded(blockNumber: number) {
+ const isBlockPending = _.isNull(blockNumber);
+ if (!isBlockPending) {
+ // Hack: I've observed the behavior where a client won't register certain fill events
+ // and lowering the cache blockNumber fixes the issue. As a quick fix for now, simply
+ // set the cached blockNumber 50 below the one returned. This way, upon refreshing, a user
+ // would still attempt to re-fetch events from the previous 50 blocks, but won't need to
+ // re-fetch all events in all blocks.
+ // TODO: Debug if this is a race condition, and apply a more precise fix
+ const blockNumberToSet = blockNumber - BLOCK_NUMBER_BACK_TRACK < 0 ?
+ 0 :
+ blockNumber - BLOCK_NUMBER_BACK_TRACK;
+ tradeHistoryStorage.setFillsLatestBlock(this.userAddress, this.networkId, blockNumberToSet);
+ }
}
private async stopWatchingExchangeLogFillEventsAsync() {
this.zeroEx.exchange.unsubscribeAll();
diff --git a/packages/website/ts/local_storage/trade_history_storage.tsx b/packages/website/ts/local_storage/trade_history_storage.tsx
index 415b380b7..dd5872609 100644
--- a/packages/website/ts/local_storage/trade_history_storage.tsx
+++ b/packages/website/ts/local_storage/trade_history_storage.tsx
@@ -31,13 +31,25 @@ export const tradeHistoryStorage = {
const fillHash = this._getFillHash(fill);
const doesFillExist = !_.isUndefined(fillsByHash[fillHash]);
if (doesFillExist) {
- return;
+ return; // noop
}
fillsByHash[fillHash] = fill;
const userFillsJSONString = JSON.stringify(fillsByHash);
const userFillsKey = this._getUserFillsKey(userAddress, networkId);
localStorage.setItem(userFillsKey, userFillsJSONString);
},
+ removeFillFromUser(userAddress: string, networkId: number, fill: Fill) {
+ const fillsByHash = this.getUserFillsByHash(userAddress, networkId);
+ const fillHash = this._getFillHash(fill);
+ const doesFillExist = !_.isUndefined(fillsByHash[fillHash]);
+ if (!doesFillExist) {
+ return; // noop
+ }
+ delete fillsByHash[fillHash];
+ const userFillsJSONString = JSON.stringify(fillsByHash);
+ const userFillsKey = this._getUserFillsKey(userAddress, networkId);
+ localStorage.setItem(userFillsKey, userFillsJSONString);
+ },
getUserFillsByHash(userAddress: string, networkId: number): {[fillHash: string]: Fill} {
const userFillsKey = this._getUserFillsKey(userAddress, networkId);
const userFillsJSONString = localStorage.getItemIfExists(userFillsKey);