building-microservices | Building Microservices with Spring Boot | Continuous Deployment library
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- Batch flow .
- Creates a filter for Csrf header .
- Bean integration flow bean .
- Run a job .
- bean reader .
- Register the bean post processor .
- Configures the HttpSecurityPolicy .
- Initialize bean .
- This method runs the request .
- The order DTO .
building-microservices Key Features
building-microservices Examples and Code Snippets
Trending Discussions on building-microservices
Trending Discussions on building-microservices
QUESTION
Am working on Azure Kubernates where we can store Docker Images in Azure. Here am trying to check my kubectl version, then am getting
Unable to connect to the server: dial tcp [::1]:8080: connectex: No connection could be made because the target machine actively refused it.
For this I followed MSDN:uilding Microservices with AKS and VSTS – Part 2 and MSDOCS:Kubernetes on windows
So, can you please suggest me “How to resolve for this issue?”
ANSWER
Answered 2018-May-30 at 12:49I think you might missed out to configure the cluster, for that you need to run the below command in your command prompt.
az aks get-credentials --resource-group myResourceGroup --name myAKSCluster
The above CLI command creates .config file with complete cluster and nodes details in your local machine.
After that you run kubectl get nodes
command in your command prompt, then you can get the list of nodes inside the cluster like in the below image.
For reference follow this Deploy an Azure Kubernetes Service (AKS) cluster.
QUESTION
i'm trying to make a microservice with python (i'm n00b in this language), well i'm following this tutorial -> https://medium.com/@ssola/building-microservices-with-python-part-i-5240a8dcc2fb
but i'm getting this error:
"flask_app.py", line 115, in run
raise Exception('Server {} not recognized'.format(self.server))
Exception: Server 9090 not recognized
sorry if my english is not good.
Project structure:
App.py file code
from connexion.resolver import RestyResolver
import connexion
if __name__ == '__main__':
app = connexion.App(__name__, 9090, specification_dir='swagger/')
app.add_api('my_super_app.yaml', resolver=RestyResolver('api'))
app.run()
my_super_app.yaml file code
swagger: "2.0"
info:
title: "My first API"
version: "1.0"
basePath: /v1.0
paths:
/items/:
get:
responses:
'200':
description: 'Fetch a list of items'
schema:
type: array
items:
$ref: '#/definitions/Item'
definitions:
Item:
type: object
properties:
id:
type: integer
format: int64
name: { type: string }
items.py file code
items = {
0: {"name": "First item"}
}
def search() -> list:
return items
ANSWER
Answered 2019-Feb-09 at 16:29There are plenty of microservice frameworks in Python that would simplify a lot the code you have to write.
Try for example pymacaron (http://pymacaron.com/). Here is an example of an helloworld api implemented with pymacaron: https://github.com/pymacaron/pymacaron-helloworld
A pymacaron service requires you only to: (1) write a swagger specification for your api (which is always a good starting point, whatever language you are using). Your swagger file describes the get/post/etc calls of your api and which objects (json dicts) they get and return, but also which python method in your code that implement the endpoint. (2) and implement your endpoints' methods.
Once you have done that, you get loads of things for free: you can package your code as a docker container, deploy it to amazon beanstalk, start asynchronous tasks from within your api calls, or get the api documentation with no extra work.
QUESTION
I am writing a microservice using the technique from here: https://www.strathweb.com/2017/01/building-microservices-with-asp-net-core-without-mvc/
Now, I would like to know if it is possible to have the code in the RequestDelegate(s) in functions since the code here is in lambdas?
app.UseRouter(r =>
{
var contactRepo = new InMemoryContactRepository();
r.MapGet("contacts", async (request, response, routeData) =>
{
var contacts = await contactRepo.GetAll();
await response.WriteJson(contacts);
});
r.MapGet("contacts/{id:int}", async (request, response, routeData) =>
{
var contact = await contactRepo.Get(Convert.ToInt32(routeData.Values["id"]));
await response.WriteJson(contact);
});
r.MapGet("contacts/delete/{id:int}", async (request, response, routeData) =>
{
await contactRepo.Delete(Convert.ToInt32(routeData.Values["id"]));
var contacts = await contactRepo.GetAll();
await response.WriteJson(contacts);
});
});
I'm asking because we already have some units that we need to incorporate code from into the new calls. The above is only examples.
ANSWER
Answered 2017-Oct-23 at 20:37Yes, it would look like this:
app.UseRouter(r =>
{
var contactRepo = new InMemoryContactRepository();
r.MapGet("contacts", GetContacts);
r.MapGet("contacts/{id:int}", GetContact);
r.MapGet("contacts/delete/{id:int}", DeleteContact);
});
...
private async Task GetContacts(HttpRequest request, HttpResponse response, RouteData routeData)
{
var contact = await contactRepo.Get(Convert.ToInt32(routeData.Values["id"]));
await response.WriteJson(contact);
}
private async Task GetContact(HttpRequest request, HttpResponse response, RouteData routeData)
{
var contact = await contactRepo.Get(Convert.ToInt32(routeData.Values["id"]));
await response.WriteJson(contact);
}
private async Task DeleteContact(HttpRequest request, HttpResponse response, RouteData routeData)
{
await contactRepo.Delete(Convert.ToInt32(routeData.Values["id"]));
var contacts = await contactRepo.GetAll();
await response.WriteJson(contacts);
}
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Install building-microservices
You can use building-microservices like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the building-microservices component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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