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BarCode Image generator Hosted API


This simple web application should be written in JAVA within GOOGLE APP ENGINE (GAE) and using the GAE Datastore (to log activity logs such as API calls), and the configuration values (such as list of valid customers). PLEASE make sure that you are confortable with JAVA and GAE before bidding on this simple project.

The assignment will include the installation and full configuration in the select domain / Google Apps domain.

IMPORTANT: We need this project to be completed really quick. We probably will need the application about a day after the bid is accepted. PLEASE make sure that you are available before biding on this.

PLEASE Make sure that you understand all the requirements listed on this page and that you are very conformable with the simple related development.

We need a very simple web application/website that will do very simple things:


1) Receive API request to generate an IMAGE barcode. The site would receive request in http for request, and return an image (PNG and JPG format, and maybe also GIF if possible).

The http call would look more or less like the following:

[url removed, login to view] plus the other parameters, etc.

IMPORTANT: The API will include a parameter to specify the enterprise customer id (customer I'd of the customer that is using the API. The customer I'd should be validated against a configurable list of valid customers (composed of up to 15 characters).

This page should not be protected and should be open to the public, but if the provided customer id is not valid, then the API should return an error "ERROR #17: Invalid customer I'd provided".

Every API call should be logged (list of parameters, calling ip address, date and time).


2) The site should also provide a webpage that presents the full list of parameters, where a user would be able to enter all the related values on the webpage and get the related barcode image displayed (then obviously the user would be able to download the image with a right mouse click). The supported formats would be the same as the ones supported in the API. The resulting image should be presented on the same page as the list of parameters to allow the user to change the values and regenerate the image if desired.

To access this page, the user must have a valid login, which is a Google Apps I'd that was created domain the domain.


3) HELP: Additionally, there should be a static help page that shows how to use the API.

To access this page, the user must have a valid login, which is a Google Apps I'd that was created domain the domain.


4) ADMIN: Administrators need to have a page where they can manage the customers list (company name, address;including country name, contact frost name and last name+phone number and email, and CUSTOMER ID... All fields are required).

Also, administrators should be able to add and remove admin access to other Google Apps users (within the same domain).

Additionally, administrators should be able to query the API called activity for any Customer ID, by date range (important). Additionally, we should be able to see the calls that ended in errors (ie: invalid customer id).

We should also be able to assign a quota to restrict the number of API calls a customer can make.... The administrator should be able to reset the number of calls to 0 when desired for any given customer.


Again: the application should be written in Java, in Google App Engine and use the GAE Datastore.

Again: the assignment will include the installation and full configuration in the select domain / Google Apps domain. We would gibe your a temporary admin user for the domain to perform the installation.

This is a first phase within a larger project. So more work will be generated if the work done on this project is done properly.

Some links that should help:

[url removed, login to view]

[url removed, login to view]

[url removed, login to view]

Thank you very much for taking the time to review this project's requirements.

Beceriler: Google App Motoru, Java

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İşveren Hakkında:
( 0 değerlendirme ) New York, United States

Proje NO: #719400

3 freelancers are bidding on average $127 for this job


no bidding

in 15 gün içinde30$ USD
(0 Değerlendirme)

Hello, I am a free lance programmer and I develop quality software and websites. I expertise in developing websites with Java and GAE. I have working experience on Google App Engine. I have started a personal webs Daha fazlası

in 14 gün içinde240$ USD
(0 Değerlendirme)

I'm ready to do this [url removed, login to view] read your PMB.

in 10 gün içinde100$ USD
(0 Değerlendirme)

I have worked on similar [url removed, login to view] will be easy for me.

in 7 gün içinde250$ USD
(0 Değerlendirme)