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Microservice Architecture In ASP.NET 6 With API Gateway
Last modified: April 17, 2022There are two main ways of building a software
- Monolith
- Microservice
Monolith
Microservice
Microservice vs Monolith Architecture
| Monolith | Microservice |
|---|---|
| All the logic including business in one application | Each Microservice has it own responsibility |
| Single Database | Each Database per Microservice |
| One programming lanaguage | Each Microservice can have its own programming lanaguage |
| Usually deploy to a server | Each Microservice can be deploy to individual server |
1. Create Microservice application and API Getaway
Remove old code from WebAPI
Repeat above steps to create Customer and Product Microservices projects
Now we have
We are going to install Ocelot to allow us to setup API Gateway
"Ocelot is a .NET API Gateway. This project is aimed at people using .NET running a micro services / service oriented architecture that need a unified point of entry into their system. However it will work with anything that speaks HTTP and run on any platform that ASP.NET Core supports." source: https://github.com/ThreeMammals/Ocelot
We need to run all three Web APIs to test the application to do that, right the solution and select as below.
Create ocelot.json file in API Getaway Project and copy the following code. You can find Web API port from launchSettings.json file
- DownstreamPathTemplate for Web API endpoint
- UpstreamPathTemplate for Getaway API endpoint
{
"Routes": [
{
"DownstreamPathTemplate": "/product",
"DownstreamScheme": "https",
"DownstreamHostAndPorts": [
{
"Host": "localhost",
"Port": 7105
}
],
"UpstreamPathTemplate": "/gateway/product",
"UpstreamHttpMethod": [ "GET" ]
},
{
"DownstreamPathTemplate": "/customer",
"DownstreamScheme": "https",
"DownstreamHostAndPorts": [
{
"Host": "localhost",
"Port": 7242
}
],
"UpstreamPathTemplate": "/gateway/customer",
"UpstreamHttpMethod": [ "GET" ]
}
]
}
Test application
