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Web Scraping system

We want to develop a system for scraping data from various websites specialized in classified ads for second-hand products.

The data must be captured periodically to know which ads are new, which ones have been updated and which ones have been eliminated.

With the data from all the websites, finally unified in a single database, we want to be able to analyze the evolution of the market data.

Therefore, we need to be able to go through certain categories (not all) of a total of five different websites. We need to be able to scrape about 10 or 15 key fields of all those ads (each website have the same page structure in all of their categories).

Preferably we would like the system to be developed in Python (we already have a crawler of one of those web pages in Python and works fine).

We want a stable system. We want the system to be executed as autonomously as possible (as long as there are no changes in the format of the target websites). We also want the system to have a series of alerts by email to notify us when a failure occurs (some service goes down, some web blocks us, the format of some web has changed and we can no longer extract the data, etc.). We want proxy change support (to prevent ip-blocking)

We are open to suggestions regarding the most professional architecture to maintain the system (python->file->mysql ; python->postgre->mysql; python->mysql; ... server hosted, crawlers specialized hosting, etc..).

The five websites to be crawled (for now) are:

[login to view URL]

[login to view URL]

[login to view URL]

[login to view URL]

[login to view URL]

We probably need maintenance services after the end of the project.

技能: 数据挖掘, PHP, Python, Scrapy, 网页搜罗

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关于此雇主:
( 3个评论 ) San sebastián de los reyes, Spain

项目ID: #17555526

授予:

gurpreetchahal93

Hi employer Well i would be glad to work on this. I will add free proxy switching, although there are paid proxy service providers with lesser latency. And regarding the architecture, i think python-file-mysql(A 更多

€194 EUR 在4天内
(32条评论)
4.7

12 威客就此工作平均出价 €189

ramzitra

Hi, I am interested in your project related to scrape 5 websites on an ongoing basis. I will you provide you complete solution including script,documentation, data storage, proxy provider recommendation,scheduling,etc 更多

€400 EUR 在8天内
(274条评论)
7.6
sypsoo

he data must be captured periodically to know which ads are new, which ones have been updated and which ones have been eliminated. With the data from all the websites, finally unified in a single database, we want t 更多

€175 EUR 在5天内
(52条评论)
6.2
goalscoreplayer

I a python web scraping expert. i can complete your task in a short time. i will offer 100% guarantee and best solution. i understood your task.

€200 EUR 在10天内
(33条评论)
5.9
pakulin

Hi, depending on site it will be around 30 per site It can be easily managed by cron to run separate scraper

€150 EUR 在5天内
(39条评论)
5.4
DarkKnight2206

Hello! I am a python developer. I looked at your project and it seems interesting. I have all necessary skills required for this project. Ping me to discuss in detail.

€125 EUR 在2天内
(24条评论)
5.0
kjdev616

Hi, Thank you for your your posting. I have strong experience in web scraping/data mining, done a lot of web crawling project to scrape web pages and parsing their contents into excel/database including mysql, postg 更多

€172 EUR 在2天内
(5条评论)
2.8
kningconsulting

Thank you for your job posting. I am a talented python developer with rich experience of data scrapping and web programming(django) for 10+ years. About your task: After reading your job posting, I feel 更多

€222 EUR 在10天内
(1条评论)
1.0
arkoturing

I can accomplish this using django, beautifulsoup and datetime.

€166 EUR 在15天内
(1条评论)
1.0
jsoriaso7

I have a lot of experience with web scraping and automation using proxies and VPN, surpassing new Google reCaptcha. I have also experience creating API which connects with these automation and control a good behaviour. 更多

€166 EUR 在3天内
(1条评论)
0.0
GVeteran

Hello, I have worked on many projects from conception to completion. In the following link, you’ll find our brochure to show you some of the projects we have worked on: [login to view URL] 更多

€161 EUR 在3天内
(0条评论)
0.0
MileMik

Hi i'm a python programmer and exp with web scraping using python beautifulsoup and selenium. I can build you a script to scrap data you need from this websites. And export data in csv, excel,txt or where you want :) 更多

€133 EUR 在10天内
(0条评论)
0.0