En cours

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.

Compétences : Exploitation de Données, PHP, Python, Scrapy, Web Scraping

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Concernant l'employeur :
( 3 commentaires ) San sebastián de los reyes, Spain

Nº du projet : #17555526

Décerné à:


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 Plus

%selectedBids___i_sum_sub_7% %project_currencyDetails_sign_sub_8% EUR en 4 jours
(36 Commentaires)

11 freelance font une offre moyenne de €191 pour ce travail


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 Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 8 jours
(299 Commentaires)

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 Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 5 jours
(58 Commentaires)

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.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 10 jours
(36 Commentaires)

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

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 5 jours
(40 Commentaires)

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.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 2 jours
(25 Commentaires)

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 Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 10 jours
(3 Commentaires)

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 Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 2 jours
(7 Commentaires)

I can accomplish this using django, beautifulsoup and datetime.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 15 jours
(1 Évaluation)

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. Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 3 jours
(1 Évaluation)

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 :) Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 10 jours
(0 Commentaires)