using magento apis for ecommerce website - magento

I am a beginner in magento and am working on creating a website using magento. I have noticed that magento has a good number of apis that expose all of the functionality that I would need to create an ecommerce website. So, I would like to use magento's apis to fetch data, but develop the UI separately without any dependencies on magento. I have found a lot of references that develop the website via magento theming, but not those where the UI is developed in a separate MVC and uses magento purely as service layer. Are there any problems/issues in my approach?
Edit: I have gained a lot of clarity on db performance issue in apis and how external caching can alleviate the issue, but I still don't understand the underwhelming use of magento as a service layer (i.e. fueling the website by using magento's apis), are they any other gotchas?

Here is how we overcame slowness in Magento APIs:
Created a Web service provider in J2EE, Spring MVC that acts as a proxy between Magento and end users.
J2EE Web service provider exposes pretty much all the APIs that Magento has but also supports JSON with REST along with SOAP & RPC.
J2EE Web service provider uses a document based database (MongoDB) to store a snapshot of product catalog in MongoDB.
J2EE Web service provider uses native MongoDB caching to serve data fast without running any expensive SQL queries.
To avoid dirty caching issues we created a hook in Magento Admin to push data into MongoDB whenever data changes in Magento.
This might sound like overkill to some but we have been able to achieve pretty high throughput without any slowness.

The Magento APIs are slow, you would encounter serious performance issues trying to run a site off of it.
Due to the complex nature of the EAV model, you may find it difficult to manage products through the API alone.
Are there any particular concerns you have about using Magento's own frontend? It is daunting at first but once you understand the layout system it's actually very powerful and customisable.

Technically it is possible to run a site only through the API.
The issue you might face is a practical one, instead of spending your time trying to learn all the API calls, you can learn how to implement your current UI in Magento.
The advantage to this approach is that you will also better understand how Magento works internally, thus allowing you to leverage it's functionality for your unique business needs.
Another issue is that when using API's you have a little less control over how things are processed / calculated, vs when working in Magento itself there is a lot of control over specifics.

I regularly see "session expiration" issues when accessing Magento's API, through both SOAP and XMLRPC. All my calls require exception handling to avoid halting execution. I imagine that alone would create a nightmare when building everything on top of the API.
The best answer you're going to get is to Load Test the API before you start coding. Log the tests extensively and look for errors. If you see errors on a normal basis that should answer your question. Even if you find documentation that says it's okay to do what you're trying, you're still going to have to tune the API to work properly under the load required to run the store.
It will be good to know what you're up against before sinking hours into development.

Related

Springboot fullstack web Developer

After 2 years of working on java, spring framework and springboot, now I am trying to make my first website. It is just a 3 pages website. I use html, css and bootstrap on the frontend and springboot for backend. I have 3 questions:
for backend do I need a "service" class and "service" interface? on the top of "controler" and "main" classes?
where do I put the photos? I mean some people says put them in the database table, some other says DB becomes heavy when you want to load it.
I would like to use this website as my work sample, how can I host it for free in the cloud, I think I need to host my website in the cloud, correct me if I am wrong.
It depends on your needs. If the controllers' function is to return the frontend layer, then no. Generally, services are the spring way to connect the business logic layer with database layer. Which brings us to
the necessity, or its lack, of implementing a database at all. I'd say that if you have just a bunch of static images, feel free to place them somewhere in resources and don't bother with implementing a database layer at all. But if you, on the other hand, need to store an extensive amount of files and, more importantly, need to add and remove them dynamically, database is the way to go.
As for hosting: I have little experience with devops, but I'd just throw it out there, that AWS has its free-tier, lasting 12 months.

Spring-mvc integration with reactjs?

I am trying to integrate spring-mvc and reactjs, but it's too poor example, but I like flux architect of reactjs so that i strongly want to integrate reactjs with springmvc!
I want to use reactjs as a client side, springmvc as a rest backend. Can you provide me some example or tutorial to do this? I've searched on google but it's very poor result. Please help me.
Thanks you very much
This answer might not be what you want, but I would advise you not to integrate the two of them. If they communicate over HTTP/WebSockets, they are already decoupled, and it might just cause you pain to couple them.
Advantages of decoupling the frontend and backend into separate projects:
People with experience only in React or Spring can contribute without getting confused by the other stuff.
The tooling/build you need for a Spring project is quite different from what you need for a frontend project, and mixing this into one code base can get pretty confusing.
If they're decoupled from the start, it gets easier to add other clients that use the backend API. By having them as separate projects, you're less likely to develop the backend in a way that's very tied to the frontend.
The frontend and the backend should use different versions and be shippable independently of each other. What if the backend team is currently doing a major refactoring, but the frontend team just fixed a critical bug and wants to ship a new release?
As soon as you add asset caching to your frontend project (like putting the files on a CDN, using the HTML5 application cache or the new Service Worker API), you have to prepared for getting requests to your backend from "old" clients. By separating them, it's easier to think about and plan for stuff like that on the backend.
I could probably list a couple of more benefits, but these are the ones I consider has the largest impact. There are of course some benefits of integrating the two of them, but those tend to get smaller and smaller as the project grows/matures.

Making a chat app using AJAX, Servlet and JSP on GAE

I'm a CS student trying to do some side projects during this summer. One of my aims to is create a chat app which will be ultimately hosted on GAE. I am new to web development so I'm trying to shoot around in the dark hoping to hit the target but I guess it will be a major waste of my time. The rationale for using servlets and JSP is that GAE requires Java for the backend. I hope to use AJAX to do the front-end.
However it is hard for me to put all the technologies together to make it work. I am having trouble with the design. I don't need any codes, but rather help with the design patterns.
I am confused with how GAE works. Since GAE requires Java/PHP/Python etc, is it possible to deploy the client coded in AJAX using GAE? Do I require two GAEs, one for the client and one for the server which is coded in Java?
I am also quite lost with how to connect the AJAX technologies with the Servlet & JSP technologies. I'd appreciate it very much if you guys can provide a step by step instruction on the design pattern. Links to online tutorials will be very much appreciated. My style is to learn as I go.
Ultimately, my aim is to get an chat app (very simple one where all users can see each other messages) up and running on GAE to get a feel of the whole web development process (code, run, deploy).
Just a side note, I don't know any PHP/MySQL (but will learn later if I get the whole web dev thingy down to include database features).
Thank you all.
There's a LOT of stuff available out there to read if you just search for Google App Engine. Start with the documentation and work through the tutorials. It's not a waste of your time to learn, since you don't already understand it.
Google App Engine is essentially a distributed web server + database. AJAX on App Engine is no different from AJAX anywhere else - the server serves HTML+Javascript which runs on a web browser, and communicates back to the server.

Sitecore with DMS vs caching server - how do you handle it?

We're planning to introduce DMS to our customer's Sitecore installation. It's a rather popular site in our country and we have to use proxy caching server (it's Nginx in this case) to make it high-traffic-proof.
However, as far as we know, it's not possible to use all the DMS features with caching proxy enabled - for example personalization of content - if it gets cached it won't be personalized.
Is there a way to make use of all the DMS features with proxy cache turned on? If not, how do you handle this problem for high-traffic sites - is it buying more Content Delivery servers to carry the load, or extending current server with better hardware (RAM, CPU, bandwidth)?
You might try moving away from your proxy caching for some pages, or even all.
There's no reason not to use a CDN for static assets and media library assets, so stick with that
Leverage Sitecore's built-in html cache for sublayouts/renderings - there are quite a few options for caching
Use Sitecore's Debug feature to track down the slowest components on your site
Consider using indexes instead of doing "fast" or Sitecore queries
Don't do descendants query "//*" (I often see this when calculating selected state for navigation - hint: go the other way, calculate the ancestors of the current page)
#jammykam wrote an excellent answer on this over here.
John West wrote a great blog post on this also, though a bit older.
Good luck!
I've been wondering about this myself.
I have been thinking of implementing an ajax web service that:
- talks to the DMS and returns JSON
- allows you to render the personalised components client side
- allows you to trigger anlaytics events
I have been googling around and I haven't found anyone that has done it and published the information yet. The only place I have found something similar is actually in the mobile sdk, but I haven't had a chance to delve into it yet.
I have also not been able to use proxy server caching and DMS together successfully. For extremely high loads, I have recommended to clients to follow the standard optimization and scaling guidelines, especially architecting for proper Sitecore sublayout and layout caching for as much of the site as possible. With that caching done, follow it up by distributing across multiple Content Delivery nodes with load balancing to help support high volume with personalization at the same time.
I've heard that other CMS's with personalization use a javascript approach to load the personalized content on the client-side, but I would be worried about losing track of the analytics data that is gathered when personalized content is loaded and interacted with.

How can I integrate Oracle BI into an existing application?

I have an existing application written in Perl. Now I need to integrate this application with OBI. The plan is having a button the user can click on to open OBI in an iframe. OBI resides on a different server from the running application.
Has anyone done this before, know what is the best practice for doing this, and what is the effort of doing this?
Another question is is it possible to add customizations to the OBI displayed in the iframe.?
There are two ways to address the problem that I know of and tried out. According to your needs, one or the other might be more appropriate (or both, they're not mutually exclusive). In both cases, the documentation is good and readily available.
The "Go URL"
The Go URL is documented more thoroughly in the Oracle Business Intelligence Presentation Services Administration Guide. It provides a quick and easy interface to the reports you've already defined, in the form of a URL. All that's needed to get it running is to fill in a few query parameters to direct to the report you want. You might need to include authentication tokens too.
Pros: very easy to try out.
Cons: harder to get security right.
The web services
The presentation server comes with a series of web services that enable a more programmatic way of querying your repository. The functionality offered through this channel goes further: for example most catalog management, including report creation and editing is possible. The full list fills a guide of its own: the Oracle Business Intelligence Web Services Guide.
Pros: better integration (i.e., no need for an IFRAME); easier to get the security right.
Cons: harder to setup; lots of XML; more advanced features (e.g. in-place drilldown) need an HTTP bridge that was a bitch to get right in my case. The generated HTML might clash a bit with yours and require cleaning up, notably in the CSS.
Embedding OBIEE reports inside a non-ADF web app is tough. If you have an option to re-write your web application in ADF, your life will be a lot easier. Just drag and drop reports and visualizations into your web application. Oracle's own Fusion Applications also follow this approach. If your app is analytics heavy, it might be a good option to explore. Here's a link to the Oracle doc.

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