Hot Chocolate VS openapi-generator

have a look here https://youtu.be/qrh97hToWpM https://chillicream.com/

There are some libraries which allows you to declare some class with more or less arbitrary methods which will be called by it at runtime. I believe many of them do that in optimal way, not just using usual reflection. One of the examples is HotChocolate library https://github.com/ChilliCream/hotchocolate . You declare class with arbitrary methods which contain arbitrary arguments. "Arbitrary" doesn mean arbitrary at all, but if parameter type is registered in DI or marked by specific attribute, it can be passed to the method.

At work we are considering using GraphQL to build our read-only data-APIs using .NET 6, EF Core and SQL Server. Looking at the ecosystem the most relevant plattforms seems to be graphql-dotnet and ChilliCream.

I'm starting a brand new project. Looks like if we want to do GraphQL in .NET, it's either graphql-dotnet or Hot Chocolate. Both look pretty good on paper.

If you know it better: Please try statically typed generated graphql queries in C# (like write the graphql queries, have a graphql schema, then get generated C# types which resemble the query, the only thing I've found that could do it was https://chillicream.com/docs/strawberryshake and there I quickly hit this bug with super simple queries containing unions: https://github.com/ChilliCream/hotchocolate/issues/4662

If you don't know Hot Chocolate framework, feel free to read about it on chillicream.com (official website) and feel free to join the great community (which is always willing to help) on slack

I love using Hot Chocolate in C# ❤

Hotchocolate GraphQL server. This is the most advanced server for a .Net environment. This article does not go into the basics and assumes some framework knowledge.

I think for the time being that's the case, yeah. I'm confirming with the great people over at https://github.com/ChilliCream/hotchocolate to see if we can somehow work around that.

Disclaimer: We're an early adopter of Stainless at Mux.

I've spent more of my time than I'd like to admit managing both OpenAPi spec files [1] and fighting with openapi-generator [2] than any sane person should have to. While it's great having the freedom to change the templates an thus generated SDKs you get with using that sort of approach, it's also super time consuming, and when you have a lot of SDKs (we have 6 generated SDKs), in my experience it needs someone devoted to managing the process, staying up with template changes etc.

Excited to see more SDK languages come to Stainless!

[1] https://www.mux.com/blog/an-adventure-in-openapi-v3-api-code...

[2] https://github.com/OpenAPITools/openapi-generator

As a result, the following specification can be used to generate clients in a number of different languages via OpenAPI Generator.

Of course you can compile the server from source if you have Go and the OpenAPI generator JAR (https://github.com/OpenAPITools/openapi-generator?tab=readme...)

Follow these steps : https://github.com/c100k/rebootx-on-prem/blob/master/.github...

And then :

(cd ./impl/http-server-go && GOARCH=amd64 GOOS=openbsd go build -o /app/rebootx-on-prem-http-server-go-openbsd-amd64 -v)

By adapting the arch if needed. Not tested, but it should work.

TL;DR: Start generating your HTTP clients and all the DTOs of the requests and responses automatically from your API, using openapi-generator instead of writing your own.

As an alternative, you can also use the official OpenAPI Generator, which is a more generic tool supporting a wide range of languages and frameworks.

I trialed generating SDKs using the OpenAPI Generator package, which was largely unsatisfactory.

If Swagger/OpenAPI is available, save yourself a lot of trouble and generate the client using OpenAPI Generator. If not, use a library like RestEase to make it significantly easier to create the client.

For a run of the mill REST API you should generate OpenAPI (Swagger) info for the API using a library like NSwag or Swashbuckle. You'd want to do this no matter what because it's documentation for the API, but the bonus is that you can use it with tools like OpenAPI Generator to create API client code and models in a variety of languages. You certainly can create an API client library manually, it would entail having a nuget package with a class library that contains the models and client code for calling the endpoints (which I'd create using a lib such as RestEase unless you just enjoy writing boilerplate code by hand). However 95% of the time it simply isn't worth creating your own lib when OpenAPI is available because once you've done it a time or two it takes less than 5 min to run the generator and create (or update) a lib.

Then you can use oapi-codegen or openapi-generator to generate the Go (or other language) SDK for it.