Dashboard transactions reloading and slowness

[zillionn]

Platform (please complete the following information):

• macOS Mojave 10.14.2 (18C54)
• Desktop Wallet 2.2.0

Describe the bug
Two issues:

• everytime I got to the Dashboard, all the txs are gone and reloaded
• new txs do not appear without reloading, even though I get a New transfer: ... message

How to reproduce the bug
Steps to reproduce the behaviour:

1. Go to Dashboard and wait to load your last txs
2. Go to Wallets page
3. Go back to Dashboard and all txs will be gone
4. After that send tx to some of your wallets from some other client and wait. You'll get a New transfer message but the tx will not appear on the dashboard

[j-a-m-l]

This could be fixed adding a global caching of transactions, as proposed on #894

A simpler alternative is caching only those transactions, and request and update on the background. From that we could extend this technique to other parts of the application, although it would be harder due having to deal with pagination, etc.

[zillionn]

I have 13 wallets and 9 contacts and something else strange is happening. I'm watching the network requests and all the requests are finished but there is like 5-6 seconds delay until I see the txs on the dashboard. So for me it takes 10s to finish all requests and another 6s to show the txs and during that last 6s the app is unresponsive. I guess parsing the data is too slow/not optimized.

And I thought the new core is able to query all the wallets with one request, isn't it? Or that's coming with 2.3?

[j-a-m-l]

The problem of the 2 comment was not the parsing per se, but storing that data. It was solve on #1124.

Reloading the transactions would be fixed when implementing the cache for transactions probably, although there are other ideas that could improve it before.

[ghost]

This issue has been closed. If you wish to re-open it please provide additional information.