krenel

[EU/SEPA Only] If you have signed a B2B SEPA Direct Debit (SDD), it's enough to revoke it on your banking portal as you have mentioned. Your bank is required for a signed Mandate to be able to debit your account. If you have been debited already for a B2B SDD, you only have 3 inter-banking business days to try to Reject the payment (if your bank offers that as a service), afterwards the bank that has issued the SDD is not legally bounded to return the money.

If it's a Core SEPA Direct Debit, there is not the concept of a "signed mandate" but according to the rulebook [1] you have up to 13 months [2] to ask for a Return.

[_sigh_] I've spend so much team reading those rulebooks

[1] https://www.europeanpaymentscouncil.eu/what-we-do/sepa-payme...

[2] "If the request for a Refund concerns an Unauthorised Transaction, a Debtor must present its claim to the Debtor PSP within 13 months of the debit date. [...]"

krenel

3년 전discuss

Shameless plug; I've been playing with a [Redis Server implementation in Go](https://github.com/jan-carreras/ddia) for the past weeks. Mainly as a way to try out things explained in Designing Data-Intensive Applications book (favourite of mine!). Those are the [commands implemented](https://github.com/jan-carreras/ddia/blob/master/commands.md), + TTL + AoF files (for state replication) + config file, ... The "challenge" was to do it without any external dependency other than go stdlib.

> I actually build minimal Redis clones in every new language or runtime, or when I want to explore threading models.

100% agree with your advice; I'll definitively try to implement other parts of the Redis service in Go (eg: pub/sub, replication, clustering...) and probably repeat the same exercise when learning any new language.

krenel

4년 전discuss

Yeah, thought the same. The AML team on a bank cannot disclose that the account is being investigated by the regulator, nor give any information to the client about it.

Of course, if the bank wished to do so, they could give information or unblock the funds. But the fines that the regulator can impose to the bank are disproportionate (hundreds of thousands, per individual case) to "convince" the bank to comply.

Thus, is not "the bank" who is doing that to you, it's the regulator, and the agreement between the bank and them. And this "agreement" is a requirement in order for the regulator to give a banking license, so...

Let's be clear, the bank is not gaining anything out of this, quite the opposite: they are at risk of bad reputation, having an angry customer at their offices or calling daily, etc...

It's a very frustrating situation, tho. I do understand that.

krenel

4년 전discuss

For me the use case is: someone leaves a comment that's ambiguous, someone asks for clarification, some people respond _what they think that original commenter meant_, finally originally commenter solves the doubt.

I find myself Control+F the name of the original commenter to see if he/she has replied, because I'm interested in _that_ response — not so much of the interpretation of others.

krenel

5년 전discuss

Wanted to PM you but no contact info, so I'll do it thru here.

> Finding solid, dependable people with the right skills and attitude is really, really hard.

1. What are the soft skills of the candidates that you most value? 2. After 6 months, what the most important aspect that you value to decide if it was a good/great hire? 3. Offtopic: Do you have an all time favourite book for growth/self improvement you could recommend?

Thanks in advance!

krenel

5년 전discuss

The book about him[1] explains how he is a workaholic . Not just by the worked hours, but the intensity of those, context switching between projects and attention to detail, pressure teams, etc...

I understand your point about "waste of his position" and that he could have a more balanced life, but as the books depicts him that's not the case. Nor it was when he was at PayPal or Zip2.

Good (audio) book, btw. I would recommend.

[1] https://www.goodreads.com/book/show/25541028-elon-musk

krenel

5년 전discuss

I would agree that we're talking about the same thing, really:

> The right technologies for a project are the ones you deem to be right, given appropriate consideration of many factors

It's _usually_ difficult to take into consideration all the factors of a new flashy thing. The unknown unknowns. Thus _maybe_ choosing a trendy set of technologies might indicate that the exercise of balance and consideration you were commenting and that I do agree with 100%, has not been as honest as possible.

krenel

5년 전discuss

> When someone comes at your approach wielding a slogan, be skeptical.

I do agree. Although the point of the article is to _lean_ more on "boring technology" side of, and paying extra effort when considering adopting newest flashy things.

Having read the article 3-4 time in the last years, I don't think they say "don't use new things", just "not too many new things at the same time"

krenel

5년 전discuss

Hi mate,

very interesting library. Keep it up.

Improvement suggestion: While reading the README, the JSON library comparison [1] it's confusing, at least to me. It uses symbols like: ○, and △ which are not obvious. I would rather use "yes/no" or the classic check/x (unicode chars, HN does not support them here) if you want to use symbols. I don't know what "△" even means, so I cannot suggest an alternative.

Just my 2 cents.

[1]: https://github.com/goccy/go-json#json-library-comparison

Edit: This 2021 I have the objective to contribute more to OS projects. Is it OKay if I submit a PR with the change? Thanks!

krenel

6년 전discuss

I strongly suggest you the Loop Habit Tracker [1][2]. Simple yet powerful app. You configure your habits and associate a frequency, and once done they disappear from the list. You can set up reminders/alarms as well.

The only "tip" I would suggest to you is to open the app once a day. For that, I created a daily habit of "checking my habits". A little bit meta, but it holds myself accountable.

Some of my tracked habits: calling mom/grandma, reading, use Anki, gratitude journal, exercice, drink 1.5L or water a day, meditate, breathing exercices, no screen time after 20:00, etc.

Of course, not meant to disencourage you from doing your own app, just to show how I scratch my very same itch. May the code be with you ;)

[1] https://play.google.com/store/apps/details?id=org.isoron.uha...

[2] It's an OpenSource project! https://github.com/iSoron/uhabits

krenel

6년 전discuss

Well, the parameter of a Timer is of type Duration:

  A Duration represents the elapsed time between two instants as an int64 nanosecond count. The representation limits the largest representable duration to approximately 290 years.

Which is not really good because we have to calculate the time between now() and Saturday. If "wall time" changes, the scheduler will not be triggered when expected.

In that case I would not rely on Timer to use it in a cron-like fashion, or trigger a Ticker every second, check the _current_ wall time, and decide if anything needs to be done.

You can read more about Timers, Tickers and Sleeps in this (pretty interesting) article[1]

[1] https://blog.gopheracademy.com/advent-2016/go-timers/

krenel

6년 전discuss

In Python:

  import time 
  time.get_clock_info(name)

where name can be one of those:

  'monotonic': time.monotonic()
  'perf_counter': time.perf_counter()
  'process_time': time.process_time()
  'thread_time': time.thread_time()
  'time': time.time()

krenel

6년 전discuss

OP: Related stuff

How Golang[1] implements monotonic clocks — basically it retrieves always both wall and monotonic clocks on "time.Now()" and when doing operations of subtraction it uses the monotonic. When printing, it uses the wall time. Pretty neat. Details on the proposal by Russ Cox [2].

[1] https://golang.org/pkg/time/#hdr-Monotonic_Clocks [2] https://go.googlesource.com/proposal/+/master/design/12914-m...

krenel

6년 전discuss

Operators are polymorphic. While the + operator is commutative when using on integers/float, it is not currently when used on lists:

>>> [1,2,3] + [4,5,6]

[1, 2, 3, 4, 5, 6]

>>> [4,5,6] + [1,2,3]

[4, 5, 6, 1, 2, 3]

In dictionaries it would behave differently as well (duplicated keys, etc.)

krenel

6년 전discuss

Those prices look promising. I don't seem to find where those prices are in their webpage[1]. All I'm seeing is 359/719 USD a year for a wildcard certificate.

Am I looking in the wrong place?

[1] https://www.comodoca.com/ssl-certificate-comparison?key5sk1=...

krenel

7년 전discuss

IMHO the affirmation of

> Go is faster to iterate

holds true considering the total lifespan of the project. Golang is more explicit thus requiring more time to define every type but I've never refactored so fast and safe a codebase. In Python the fact that is dynamic makes it more difficult to safely iterate over it (is more statically-typed Vs dynamically typed). About error handling, it's not perfect, but the code is readable, easy to follow and easy to reason about.

> Iteration in go is simply harder as you have to be more explicit rather than sketching something out.

I will completely agree that prototyping in Python is way faster. Python is my preferred language for throwaway/prototype code.

> Where do you get this idea from?

It's solely based in my experience. I hope it contributes to the conversation.

krenel

7년 전discuss

100% agree. We've just finished to roll out our implementation in Go migrating a subsystem from PHP and receiving around 150req/second and demultiplexing those request to 1500-2000req/second to legacy backends.

The key to the success of the project was that the API was an exact match, and we could compare both implementations for exact requests. The deploy strategy of the new version:

- Reply the real traffic to the new Go service comparing the results with the old one - Then implement a toggle feature than enabled different traffic sources to use one backend or the other - Keep changing backends to the new system and ensure that metrics were unaffected

Having e2e and integration tests for the Golang project was of a huge help, since we could fix all differences using TDD.

Although we changed some of the implementations to take advantage of Go constructs, just a 1-to-1 replacement would have had a huge performance impact.

krenel

7년 전discuss

> Resta prohibit explícitament per la ICANN la utilització del domini .cat per a pàgines de gats (cat en anglès), llevat que siguin en català o tinguin a veure amb la cultura catalana.

It's explicitly forbbiden by ICANN the use of .cat domain for pages about cats, unless are in catalan [language] or it has to do with catalan culture.

[1] https://ca.wikipedia.org/wiki/.cat

krenel

8년 전discuss

Your comment resonates with me.

I work hard to improve things; most of it was worth it, some of it didn't went well but it was a constant fight with my boss. If I failed, he would bring it back for months.

What worked for me was to step back and get into super pasive mode. Give all the responsability to my manager. I didn't question any of his design decisions, gave support to all ideas even if seem plain wrong unless he wanted honest feedback (usually, he didn't because I would change the original idea). Never say or even insinuate "I told you this was not gonna work"; I just acted surprised and asking to him "ok, what do we do now?". It just took a few months for my manager to start reliying on me, more and more. Now I have even more space for improving things, with the full support of my manager because "he wants me to do it" not "because I push my ideas to him".

At the end of the day, it's not dumb if it works.

krenel

13년 전discuss

> Writing lots of code quickly is not a good thing. You shouldn’t be writing more than a few lines of code per day.

Some studies says that on average a programmer writes a few lines per day. So OK.

> And if your editor is helping you write a lot of code really quickly, it’s encouraging you to write bad code.

Are you implying that being able to write faster results in more code produced ergo lower quality code? Usually being able to write/refactor/replace/etc faster means you have less friction between the code and your thoughts. You can more easily express what you have in your mind, in the code.

> Why? Because it puts pressure on me to refactor.

Make a refactoring without the right tools can be counter productive. Try to refactor a 400 lines of code of Python with Notepad. You will only detect the errors on run time, I promise.

> I don’t want my editor to refactor my code.

As far as I know, you editor does NOT refactor you code. YOU are the one who does it. The editor is just a tool that allows you to do it without pain, preventing common errors and helping you to do your jobs, no the other way round.

And not just that. Any good editor should do syntax highlight for you (you are more productive, but this does not imply to write more code). And automatically indenting. And maybe balancing the braces. And a long etc.

The editor is a tool. Any professional should use the right tools for doing its job. Is your best tool a pain-in-the-ass editor and you can do a good refactor as fast as your team mates? Good for you! :D

Submissions

Measuring Latency in Linux (2014)

When to use assert – Python

Universal Music Tells Gangnam Parody to pay $42K

Unexpected underscore in git log --graph output

comments