Data Processing Scripts, PHP, Node.js, MySQL etc

£20-250 GBP

Завершено

Опублікований

over 6 years ago

£20-250 GBP

Оплачується при отриманні

I'll provide more info on successful shortlisting of Freelancers (see criteria below) but essentially what I need you to do is: 1. Create a new Database using the Data Schema I will provide (2 tables - products table with 42 columns/data points, deals table with 63 columns/data points approximately) on my server. The tables are linked by the Product ID field (relationship). 2. Create scripts (PHP or otherwise) that can do the following, in this order: - Download a compressed file from the Retailers / URLs I provide (there are approximately 15-16 Retailers with each one having its own URL) - Unzip the file which will contain a large CSV file (one file could have around 1 million rows of data). - Extract the data in the CSV file and import it into the Database you created in the first action, separating Products and Deals from the CSV using the following rules: 1. For the Products import, the script must check first if the Product ID exists already, if so, the import must skip importing that particular product. 2. For the Deals import, it must first clear the existing deals in the Database from that URL / Retailer which can be done by using the retailer ID. - Sends an email to me with a volume of the products and the deals imported or an email with the error if the import fails. More requirements: - There must be a script per URL so I have control of which scripts I run (if I want to just import the data from one URL manually I can do) - A Cron job will need to be created so I can configure when the scripts run automatically on my server each day - I need a very simple front end HTML page that requires a login to access with a summary of the imports (I will provide flat HTML files for you to use, you'll just need to integrate it with your scripts) and the ability to trigger the scripts. - The server I have will have (at best) 2GB RAM and 2 processors. The scripts need to run optimally and complete quickly (I will allow a maximum of 1 hour for the largest script / import to run), I cannot approve this project as complete unless this happens so please think about how you plan to build this with the potential size of the CSV files.. - Each CSV file will be structured in exactly the same way, so the scripts only need to be created once as they can be applied to all the CSV files that will be downloaded from each Retailer / URL - There are other options when it comes to the files to be downloaded, if you think this would be better File format and compression options available of the files to be downloaded: - XML (no DTD) - XML (DTD 1.5) - XML (DTD 1.4) - CSV Compression: - ZIP - GZIP

Software Architecture

ID проекту: 16083400

Про проект

11 пропозицій(-ї)

Дистанційний проект

Активність 6 yrs ago

Хочете заробити?

Переваги подання заявок на Freelancer

Вкажіть свій бюджет та терміни

Отримайте гроші за свою роботу

Опишіть свою пропозицію

Реєстрація та подання заявок у проекти є безкоштовними

Доручений:

@codetastic

I have carefully reviewed the existing code and identified two specific bugs which were causing the CSV included in the dropbox archive to fail the import process. I have further already identified which of the criteria listed below are covered by the existing code and which are still missing or require modification. I can turn the project around quickly and will offer reasonable follow up support. Establishing a connection with me will also be a good long term freelancer/business relationship for future projects. I am very knowledgeable in php, python, mysql, and linux shell scripting.

£175 GBP за 6 дні(-в)

5,0

(48 відгуки(-ів))

6,2

11 фрілансерів(-и) готові виконати цю роботу у середньому за £151 GBP

@rinsadsl

Hi There, I am good in PHP, MySql and Node. I have done several projects in these areas successfully. I have done importing data from external sources and load it in to db and sending email alerts. I can do your project successfully Thanks

£210 GBP за 7 дні(-в)

4,9

(1414 відгуки(-ів))

9,8

@mingxiao2008

How are you? I am interested in your project. I think I can do your project. I have good skills in your project area. Thanks.

£150 GBP за 3 дні(-в)

5,0

(125 відгуки(-ів))

8,4

@dslc

Hi. I propose to implement the solution in Perl. I can create either a MySQL or PostgreSQL database. Perl's DBI module can handle both. Downloading the remote CSV files (compressed or uncompressed) should be straightforward using Perl's LWP framework. Prevention of duplicate records in the product table could be accomplished by setting the product_id column as the PRIMARY KEY. I think the URL could be passed to the script as a parameter - obviating the need for separate scripts. (This should be possible whether the script is invoked from a CRON job, directly on the command-line - or from an admin web panel.) I can test and develop on my own server initially, but SSH access to your server at some point would be useful (if not necessary). If it makes thing easier, I can create a Git repository on Bitbucket - or my own server - to allow you to keep track of the source code easily.

£125 GBP за 5 дні(-в)

5,0

(7 відгуки(-ів))

6,9

@testotorko

Project Description I'll provide more info on successful shortlisting of Freelancers (see criteria below) but essentially what I need you to do is:

£100 GBP за 7 дні(-в)

5,0

(132 відгуки(-ів))

5,8

@mayankinnovative

A proposal has not yet been provided

£100 GBP за 3 дні(-в)

4,5

(199 відгуки(-ів))

4,7

@varshil8060

Hello Sir, I have a very good experience in working on this technology. I have 5+ years of experience working in SQL and related database technologies. I understand you want to create a database and then import the data from a url to this database. I can certainly help you to fulfill your requirement. Looking forward to work with you and discuss more on this in detail.

£150 GBP за 3 дні(-в)