Parser for the site
There is a site with login and password access - http://costar.com/.
It has 5 types of search, of which 4 types with a different search edition structure.
For the parsing of this site there is a ready script on Python, but the speed of its operation is less than necessary.
The required speed is no more than 5 seconds per parsing 1 recording. Now it gets 8sec, due to indirect parsing with the URL, and the method of clicks and transitions.
To facilitate the task and script - decide authorization on the site and switch to the search edition to do manually.
You only need to automatize a part with the parsing of the data itself and save it in CSV or XLSX format (file template I add).
For access to the site, you need a NordVPN, or an individual paid proxy with a location in the US, Los Angeles.
As an option, access can be provided from my PC remotely via Anydesk or Teamviewer.
Any programming language is welcome. Start only from Windows.
Вот видео работы Питон парсера сейчас - https://youtu.be/SCVxXKs19ak, между запросами интервал 8 сек, нужно 2-5сек.
Applications 1
Client's review of cooperation with Nikolay Kravchenko
Parser for the siteThere was a delay in time because the site was much more difficult than it seemed at first sight. A lot of work has been done to test and explore all possible features of the site. The execution patiently and methodically moved to the finish from day to day and achieved success! A labor-friendly and responsible freelancer to whom you can trust the performance of even very difficult tasks in its specialization. I recommend cooperation!
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Winning proposal3 days45 USD
499 45 4 Winning proposal3 days45 USDHello to you. Ready to perform the task in 3 days, the cost of 2000 UAH. We have a lot of experience in Parsons.
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283 10 0 Hello to you.
I have great experience in data parsing.
I realize it on Python.
I will perform quality and quickly.
turn to
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1641 23 0 Hello to you.
Ready to take on this project, but to begin with it, you need to get to know the source.
The application is made in Python language.
I'm waiting for you in personal messages.
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223 8 0 Hello to you. As I saw it works it all on selenium. There is experience with it, also recently made a multi-string parser with its use. You have to see what you have found there, I think there is something to optimize.
The deadline is maximum. If so, it will be easier to rewrite everything from zero.
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1520 41 2 We are ready to help you optimize the parser. Most likely it is written using Selenium, you can accelerate the translation process to multiple precision, but you can consider another option that will be much faster but you have to look at the authorization system itself on the site, about this in detail in LS. The deadlines indicated for the option with optimization.
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875 51 0 1 Ready to cooperate.
I write on Python.
From you - the source code, the data for authorization and the proxy for testing.
Go to turn.
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75 9 2 3 Hello to you! There is a great experience in parsing (approximately 2 years). Ready to perform as quickly as possible on c# wpf. On account of authorization, the profile is one all the time?
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4796 67 0 Hello to you. Ready to make a parser. There is experience in data parsing. Write in detail.
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И у меня почему-то поиск типа https://www.costar.com/search?market=3&tags=256&page=2 прекрасно работает без авторизаций и локаций...
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Посмотрела видео, но все еще не поняла.
Нормальный парсер по своей функциональности - это ЧАСТЬ механизма браузера, которая берет ТОЛЬКО НУЖНОЕ и складирует его в какую-то БАЗУ - т.е. ничего человеческого в его действиях быть не может! Для чего парсер и помещают обычно на сервере, где нет человека, одни программы, инфа и все быстрое.
Да, в тяжелых случаях (яваскрипты) нужно извращаться и иногда даже нет выхода, кроме как задействовать весь браузер. Но и тогда обычно его (браузер) тянут на сервер (предварительно обрезав в нем все человеческое).
Почему же здесь парсер, как я понимаю, на клиенте стоит? И почему считается, что руками человека получится быстрее листать страницы?
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Короче, я предлагаю поставить такой вопрос. На том сайте выдача публичного поиска типа https://www.costar.com/search?market=3&tags=256&page=2 кардинально отличается от выдачи нужного поиска или нет???
Если кардинальных отличий нет, то (почти) любой (программист) может посмотреть как работает публичный поиск, какие даются запросы, какие приходят ответы. И прикинуть парсер для этого.
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