I read this documentation but I'm very confused about it. They provide examples for the Ruby language, but is it possible to do this in an other language, like Java and Spring for example? I tried to look up some examples on how to implement this but I can't find any.
Yes, you can build Heroku add-ons in languages besides Ruby.
From the page you linked to:
Because add-ons are cloud services, you can develop them in whatever
language and framework you prefer. Add-ons are not required to run on
Heroku.
The primary technical requirements for an add-on are:
It must be able to receive HTTPS requests.
It must be able to parse JSON.
Related
I'm choosing a serverless platform for my projects. I have explored AWS and found it excessively complicated: they provide an enormous bunch of settings but some basic scenarios are been too hard to implement.
The other platform looking promising for me is IBM Cloud with its OpenWhisk. And I'd like to check if the necessary capabilities are either implemented or in close plans for implementation.
Questions
Can I use websocket for my functions as a trigger for connect, message and disconnect? I found only a half year old discussion and nothing more. But this feature is demanded for real time applications.
Can I have static websites in both my custom domain and in subpath? I saw recipes where a docker container and lambda functions were employed. But writing my own implementation of Nginx looks nonsense. But this feature is also strongly demanded for single page applications (SPA) and there can be multiple such SPAs on one domain.
This blog with an IBM Cloud Functions overview has links and answers to your second question. There are tutorials on how to use custom domains with IBM Cloud Functions as backend for applications (see this tutorial with static page / SPA custom domain, and recipes for Express and Flask).
IBM Cloud Functions also has a package to post to Websockets. AFAIK there is functionality to listen to Websockets. My understanding is that serverless is incompatible with the "always on" nature of Websockets and the serverless runtime would need an API gateway or similar to manage the communication. If something is received, the action would be invoked.
Support for websockets for the ActionLoop proxy (used by Go,Swift,Python,PHP,Rust and Java) is here: https://github.com/sciabarracom/incubator-openwhisk-runtime-go/tree/websocket-support.
It can be used to build runtimes that support websocket but you need to deploy the runtime by yourself using Kubernetes. The support had ben postponed as an integration of OpenWhisk with Knative is a better path to include it in OpenWhisk.
Since CodenameOne doesn't support "the cloud storage API" any more and the parse.com is going to retire soon as well. Does CodenameOne has any plan to release a new Cloud Storage API or provide suggestions/guidelines to help developers to deal with the parse4cn1 library code, cloud code, database structure and data in parse.com?
That is something you will have to figure out yourself as parse4cn1 was initially contributed by a community member and wasn't developed by Codenameone team.
You can use a simple webservices created in php, python or java, hosted along your content with any ISP.
You may also have a look at amazon aws which is promising, they provide a cloud solution but their SDKs is not yet integrated to Codenameone.
I made the parse4cn1 lib and I'm also wondering what's smartest to do. With the announcement of Parse.com's imminent shutdown, there's been a lot of discussion around alternatives. My feeling is that "the dust is yet to settle" as per what options are best and reliable for the longer term (it would be a pity to migrate to another service only for it to be shut down soon). So I personally plan to wait till sometime in Q2 to do a proper evaluation of the alternatives. Hopefully, there'll be more clarity then.
The option to host one's own Parse server (e.g. on AWS or Heroku) is getting interesting. They recently announced support for push notifications on iOS and Android. If (when?) they open source the Parse.com dashboard code, I think that option would be much more interesting.
At some point in the coming months, I plan to make a parse4cn1 release that exposes an option to set the server path. With that, anyone migrating to the Parse server option should, in principle, be able to continue to use the cn1lib. Of course, for features that are supported by the open source Parse server.
PS: Here are pointers to some of such discussions on Parse alternatives:
https://github.com/relatedcode/ParseAlternatives
http://www.slant.co/topics/5219/compare/~firebase_vs_kumulos_vs_kinvey
I'm contemplating to use Parse as a platform for my app, as I'm trying to avoid creating and managing the cloud infrastructure myself.
For the sake of simplicity let's say that my app will hook into an Exchange Server and will need to leverage some hosted Machine Learning service to categorize my e-mail and report on insights found.
I'm assuming that Parse would store my core data, while the hosted ML will store the "Big Data" associated with processing for insights.
I'm also expecting my app to receive push notifications generated by the hosted ML service.
Does this sound like a plausible way to go about it and leverage Parse, or am I better off developing the backend myself?
I think parse.com is the right place for you requirements, because they have everything you need like storage of core data, push notifications, cloud module which can be integrated with heroku, social integration, user management functionalities.
They also have large set of client libraries for desktop and mobile apps (node,java,.net etc...) also they have libraries of embedded devices.
The biggest advantage is that everything is setup, and you are focused on software development not on infrastructure things. This is my opinion.
I've been experimenting with the above stack and so far was really impressed. Seems like a viable path forward. The Cloud Code capability of Parse is very solid, and easy to work with. If you want to run services outside of Parse code this us also possible : just issue REST calls.
I am trying to build a web application which essentially traces all my subscriptions in my gmail account, something very similar to here. But I have no clue how to get started with the development process. Could someone suggest what tools / technology stack I need to be familiar to be able to implement something like this.
One possible case that I could think of was google app script but I want this more like a web app that I can share with people.
Thanks for the help in advance.
Vaibhav
Google offer an API for developers that want to interact with Gmail.
Here https://developers.google.com/gmail/ you can learn how to integrate your app with Gmail.
They offer an SDK like library called Gmail Google Client Library in the following languages:
JAVA, .NET and Python
I'm a newbie in Vert.x and have many issue with it. There is a litle document and tutorial about it
I want to build an web service running in multi server by Vert.x. And if I do that, do I need to config anything, such as DNS...? Anyone has document about Vert.x, please share
This is a very broad and vague question, not really suited to stack exchange. However there are website tutorials available for a number of languages at http://vertxio-hornmicro.rhcloud.com/tutorials.html.
Regarding, DNS etc. I would need to know more about your setup, if you just want to develop something locally try one of the tutorials on the above link.