Re: [google-appengine] Re: Best-Approach to create and REST API (PYTHON 2.7) for a Monolitic App Engine in standard environment

['George (Cloud Platform Support)' via Google App Engine]

Hi Richard, 

Glad to hear that things are progressing and you start work on your newly 
branched app. As it seems we speak mostly of programming and coding from 
now on, it may be more effective to rather post specific questions on 
stackoverflow, where experts are ready to reply and help with suggestions. 

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Re: [google-appengine] Re: Best-Approach to create and REST API (PYTHON 2.7) for a Monolitic App Engine in standard environment

[Richard Cheesmar]

Hi, George, thanks for the response.

I have forked a new branch with specific intention of changing my main
modules into microservices. I'll get those modules as services slightly
restructured and communicating first then I should have my api core in
place and just need to add routing. I'll probably just roll my own api
authentication, write up some docs and see how she files.

I'll be sure to pop another question over if I run into any road blocks.

Cheers

On Mon, Aug 7, 2017 at 9:11 PM, 'George (Cloud Platform Support)' via
Google App Engine  wrote:

> Hello Richard,
>
> If you existing application is fairly modular, all you need to work on, to
> convert it to a micro-services-based app, is to at least convert your
> imports and read-writes from various models to calls via HTTP. The new
> services would provide full isolation of code; the only way to execute code
> in these services is through an HTTP invocation, such as a user request or
> a RESTful API call. With more work you may be able to re-think the existing
> modular structure to reduce dependencies and optimize calls, in the end.
>
> You can gather more detail on the micro-services architecture and specific
> communication paths from the “Building Microservices: Inter-Process
> Communication in a Microservices Architecture
> ”
> documentation page.
>
> 1) The best approach to building and endpoints-based application using
> services depends on your needs and the architecture that arises naturally
> from the analysis of those needs. More information from the “About Cloud
> Endpoints Frameworks” page
> 
> and the “Converting Backends to Services” document
> 
> .
>
> 2) Some of the characteristics of inter-services communications in the
> micro-services architecture are:
> - Code in one service can't directly call code in another service.
> - Code can be deployed to services independently.
> - Different services can be written in different languages, such as
> Python, Java, Go, and PHP.
> - Auto-scaling, load balancing, and machine instance types are all managed
> independently for services.
>
> 3) The optimum structure of your architecture should reflect your
> application needs. Usually, starting from existing modules might prove
> easier than rewriting the entire application specifically for the
> micro-services architecture.
>
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