Integration Services #7777 | ABP Support | ABP.IO | ABP Support

AbpRaven created 23 days ago

hi everyone. I have microservises template. and I am trying to implement commutication between servises vie Integration Services. Do you have same sample how to implement it? In documentation (https://abp.io/docs/latest/solution-templates/microservice/http-api-calls) i can see that on client side we have to use HttpClient. Does it mean we have to use this one (https://learn.microsoft.com/en-us/dotnet/api/system.net.http.httpclient?view=net-8.0) or something from ABP?

Thank you in advance.

29 Answer(s)

0

liangshiwei created 22 days ago
Support Team Fullstack Developer

You can also use the Static or Dynamic C# clients to call the HTTP APIs of other microservices. However, the Integration Services is the recommended way to communicate between microservices because it allows you to hide your endpoints from the outside world and manage your services more easily.

Hi,

I recommend you use the static csharp proxy.

https://abp.io/docs/latest/solution-templates/microservice/http-api-calls https://abp.io/docs/latest/framework/api-development/static-csharp-clients
0

AbpRaven created 22 days ago

And am I right that in current microservice template we have to create projects manualy (for example Domain, Domain.Shared and so on)? Or maybe ABP has some command vie CLI?

liangshiwei created 22 days ago

Support Team Fullstack Developer

HI,

we have to create projects manualy (for example Domain, Domain.Shared and so on)

you don't need to do this.

you can configure csharp proxy in the Web project

[DependsOn(
    ......
    typeof(XXXServiceContractsModule), //Service Contracts module
    typeof(AbpVirtualFileSystemModule) //virtual file system
    .....
)]
public class XXXWebModule : AbpModule
{
    public override void ConfigureServices(ServiceConfigurationContext context)
    {
        // Prepare for static client proxy generation
        context.Services.AddStaticHttpClientProxies(
            typeof(XXXServiceContractsModule).Assembly,
            XXXServiceRemoteServiceConsts.RemoteServiceName // add XXXServiceRemoteServiceConsts class to Contracts project
        );

        // Include the generated app-generate-proxy.json in the virtual file system
        Configure<AbpVirtualFileSystemOptions>(options =>
        {
            options.FileSets.AddEmbedded<XXXWebModule>();
        });
    }
}

Add generate-proxy.json config to csproj file

  <ItemGroup>
    <EmbeddedResource Include="**\*generate-proxy.json" />
    <Content Remove="**\*generate-proxy.json" />
  </ItemGroup>

Then you can use abp command to generate proxy

0

AbpRaven created 22 days ago

but currently I have this structure

And I want to split it for a sevrel layers
0

liangshiwei created 22 days ago
Support Team Fullstack Developer

And I want to split it for a sevrel layers

if you want , you can add them manually.

But the current layering is simpler
0

AbpRaven created 22 days ago

Thank you so much!

AbpRaven created 22 days ago

HI,

we have to create projects manualy (for example Domain, Domain.Shared and so on)

you don't need to do this.

you can configure csharp proxy in the Web project

[DependsOn( 
    ...... 
    typeof(XXXServiceContractsModule), //Service Contracts module 
    typeof(AbpVirtualFileSystemModule) //virtual file system 
    ..... 
)] 
public class XXXWebModule : AbpModule 
{ 
    public override void ConfigureServices(ServiceConfigurationContext context) 
    { 
        // Prepare for static client proxy generation 
        context.Services.AddStaticHttpClientProxies( 
            typeof(XXXServiceContractsModule).Assembly, 
            XXXServiceRemoteServiceConsts.RemoteServiceName // add XXXServiceRemoteServiceConsts class to Contracts project 
        ); 
 
        // Include the generated app-generate-proxy.json in the virtual file system 
        Configure<AbpVirtualFileSystemOptions>(options => 
        { 
            options.FileSets.AddEmbedded<XXXWebModule>(); 
        }); 
    } 
}

Add generate-proxy.json config to csproj file

  <ItemGroup> 
    <EmbeddedResource Include="**\*generate-proxy.json" /> 
    <Content Remove="**\*generate-proxy.json" /> 
  </ItemGroup>

Then you can use abp command to generate proxy

I did it in service B and then I ran Service A and tryed to use this command (abp generate-proxy -t csharp -u http://localhost:44331/) in serice B but I get this error System.IO.DirectoryNotFoundException: Could not find a part of the path 'path\Service B\ClientProxies\app-generate-proxy.json'.

0

AbpRaven created 22 days ago

ok. I have fixed this problem. Need to manuly create "ClientProxies" folder. But I faced a new one problem. When I use this command abp generate-proxy -t csharp -u http://localhost:44331/ I can not see that Dtos were created. Why? In app-generate-proxy.json I can see them, but not physically.
0

liangshiwei created 21 days ago
Support Team Fullstack Developer

Hi,

The web project should reference to the Service.Contracts project. so, don't need to generate Dtos
0

AbpRaven created 21 days ago

I do not have web project. I have only Service and Service.Contract on server side. and only Service on the client side (auth service)
0

liangshiwei created 21 days ago
Support Team Fullstack Developer

Hi,

OH, i see, in this way, I recommend you to create a new project named HttpApi.Client.

and configure static proxy in the HttpApi.Client project
0

AbpRaven created 21 days ago

It shoud be on the client side (in my case in the auth service)?
0

liangshiwei created 21 days ago
Support Team Fullstack Developer

Hi,

should put it in the service solution

MyService MyService.HttpApi.Client MyService.Contracts
0
AbpRaven created 21 days ago
I see it but in which solution?? I have 2 solutions: auth service (client) and Identity (server). In which one I have to add HttpApi.Client

Auth Solution (has just 1 project):

Service (here I added AbpHttpClient and EmbeddedResource)

Identoty Solution (has 2 projects):

Service

Contracts

So as far as I understood I have to add HttpApi.Client project into Auth Solution. Am I right?

liangshiwei created 21 days ago

Support Team Fullstack Developer

Create HttpApi.Client project for each service.

[DependsOn(
    typeof(AbpHttpClientModule), //used to create client proxies
    typeof(AbpVirtualFileSystemModule) //virtual file system
)]
public class XXXServiceHttpClientModule : AbpModule 
{ 
    public override void ConfigureServices(ServiceConfigurationContext context) 
    { 
        // Prepare for static client proxy generation 
        context.Services.AddStaticHttpClientProxies( 
            typeof(XXXServiceHttpClientModule).Assembly, 
            XXXServiceRemoteServiceConsts.RemoteServiceName
        ); 
 
        // Include the generated app-generate-proxy.json in the virtual file system 
        Configure<AbpVirtualFileSystemOptions>(options => 
        { 
            options.FileSets.AddEmbedded<XXXServiceHttpClientModule>(); 
        }); 
    } 
}

then generate proxy file(Dtos, services etc...)

For example: abp generate-proxy -t csharp -u xxx -m identity (XXXServiceRemoteServiceConsts.RemoteServiceName's value)

Other services can then reference this project for API calls

AbpRaven created 21 days ago

Create HttpApi.Client project for each service.

[DependsOn( 
    typeof(AbpHttpClientModule), //used to create client proxies 
    typeof(AbpVirtualFileSystemModule) //virtual file system 
)] 
public class XXXServiceHttpClientModule : AbpModule  
{  
    public override void ConfigureServices(ServiceConfigurationContext context)  
    {  
        // Prepare for static client proxy generation  
        context.Services.AddStaticHttpClientProxies(  
            typeof(XXXServiceHttpClientModule).Assembly,  
            XXXServiceRemoteServiceConsts.RemoteServiceName 
        );  
  
        // Include the generated app-generate-proxy.json in the virtual file system  
        Configure<AbpVirtualFileSystemOptions>(options =>  
        {  
            options.FileSets.AddEmbedded<XXXServiceHttpClientModule>();  
        });  
    }  
}

then generate proxy file(Dtos, services etc...)

For example: abp generate-proxy -t csharp -u xxx -m identity (XXXServiceRemoteServiceConsts.RemoteServiceName's value)

Other services can then reference this project for API calls

it does not help. I have the same result

0

liangshiwei created 21 days ago
Support Team Fullstack Developer

it does not help. I have the same result

what result?
0

AbpRaven created 21 days ago

without dtos
0

liangshiwei created 21 days ago
Support Team Fullstack Developer

Hi,

can you share the generate-proxy command output log?
0

AbpRaven created 21 days ago

yes.
0
liangshiwei created 21 days ago
Support Team Fullstack Developer
Hi,

The CLI expects the DTOs namespace to start with or be consistent with the application service's namespace.

you can check your dto and service namespace

For example:

namespace MyService.Services .... namespace MyService.Services.Dtos
0

AbpRaven created 21 days ago

Does it mean that I have to have DTOs models not in Contracts layer?
0

AbpRaven created 21 days ago

Could anyony help me??
0

liangshiwei created 21 days ago
Support Team Fullstack Developer

Does it mean that I have to have DTOs models not in Contracts layer?

no, just the namespace.
0

AbpRaven created 21 days ago

Does it mean that I have to have DTOs models not in Contracts layer?

no, just the namespace.

And result

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