Aws-sdk-net: Is AppSync available for Xamarin?

[johnchoicl]

I was just wondering is AWS AppSync is available for Xamarin PCL or Xamarin.iOS/Xamarin.Android?
I kinda see the code but are they just placeholders for now?
Github : https://github.com/aws/aws-sdk-net/tree/master/sdk/src/Services/AppSync

Then how come there's Nuget project?
Nuget : https://www.nuget.org/packages/AWSSDK.AppSync

If this is meant to work, please confirm it for me. I really couldn't find any sample snippet or app on Google but hopefully I will be able to work it out myself as long as this is "meant" to work.
Thanks in advance!

[codegrue]

Is there a sample project for AppSync in Xamarin?

[aherrick]

Anyone make any progress with this? Looking for an update. Thanks!

[tsilenzio]

Any updates on this? I would like to use this in a project I am working on, thank you!

[fadulalla]

I've done all my server-side stuff (schema, data sources... etc) only to find out there's nothing about appsync on xamarin 😞 .. I probably should have checked availability before embarking!

Would be nice to get an official word/update on it :)

[frankmuellr]

Hello @johnchoicl,

I have added this as a feature request in our backlog and have submitted it to the team for prioritization. I do not have specific timeline that I can share at this point. We will let you know, either on this thread, or through a forum announcement when the feature is released in the SDK

[BryanGerre]

@johnchoicl Thanks for adding this. Any progress so far?

[frankmuellr]

@BryanGerre,

Unfortunately, there's no update to report yet.

[BryanGerre]

Awesome!

Sent from my iPhone

On Feb 11, 2019, at 12:41 PM, Flush Arcade [e-mail] wrote:

Hey all, just letting you know that the AppSync client is currently in development, will have an update on dates for release soon.

—
You are receiving this because you were mentioned.
Reply to this email directly, view it on GitHub, or mute the thread.

[frankmuellr]

@BryanGerre, who is Flush Arcade? Where did this email come from?

[BryanGerre]

Not sure Git blanked out the email I assumed it was someone in your organization. When I reply it posts to the appropriate git

Sent from my iPhone

On Feb 11, 2019, at 12:41 PM, Flush Arcade [e-mail] wrote:

Hey all, just letting you know that the AppSync client is currently in development, will have an update on dates for release soon.

—
You are receiving this because you were mentioned.
Reply to this email directly, view it on GitHub, or mute the thread.

[frankmuellr]

Not sure where this came from. I have no update on an AppSync client for Xamarin.

[NeuronKarrde]

Are there any news about AppSync for Xamarin? So now, using AmazonAppSyncClient, we can work with appsync service(create, update, delete functions, tables, query), but no any way just to launch query?

[SOliasS]

Are there any news about AppSync for Xamarin? So now, using AmazonAppSyncClient, we can work with appsync service(create, update, delete functions, tables, query), but no any way just to launch query?

Is AppSync now working for Xamarin?

[NeilBostrom]

+1 for AppSync GraphQL client for .NET SDK.

For those trying to do this manually today, I have a gist available that shows using the built-in AWS4Signer to access an AppSync GraphQL endpoint using GraphQL .NET client protected by AWS_IAM authorization.

[philipogorman]

+1 I'm also really interested in seeing a sample xamarin or dotnetcore example application

[niraj-bpsoftware]

+1

[ltaljaard]

+1

[tenninebt]

+1

[ltaljaard]

@muellerfr Hi, how can we find out whether a Xamarin version is in the pipeline, and an indication of when it might come out? If there are no such plans, how can we go about it to get it on the radar? I for one think that Xamarin support would have the potential to bring a significant user base over from MS Azure (Mobile Apps which also supports offline sync) to AWS AppSync. This is the only reason that we are still on Azure - all our UI code is done in Xamarin.

[FreakyAli]

+1

[klaytaybai]

As part of our platform consolidation project, Xamarin components are being archived. Xamarin users hoping to utilize AWS AppSync should use the AWS .NET SDK targeted to .NET Standard 2.0.

[philipogorman]

@klaytaybai does the .NET Standard 2.0 AWS .NET SDK have examples for AppSync? Thanks

[ltaljaard]

Ok but can you release a sample Xamarin app that uses it so that we can see how it should be done?

[Mikilll94]

Any update on this? Could you provide a sample project for AppSync with Xamarin?

[philipogorman]

I have been in contact with aws support about this, this is what they sent me:

To sync the data between the client and server you can push data to your AppSync data source using mutations [1]. With AppSync subscriptions, you can get updates to the data back in real time whenever a mutation is performed [2].

There is currently no .NET SDK which can be used for interacting with your AppSync API, but calls to AppSync can be made over internet using a HTTP client. Therefore, you can leverage HTTP requests to make queries and mutations over internet. Subscriptions in AppSync need a Websocket connection and operate like a normal graphQL subscription [3]. I do not have a C# code example for subscriptions, but I have attached a great document (AppSyncwscat.docx) that shows how to connect to your AppSync real time endpoint using wscat, which I think you may find useful. You can try to use that example to change the logic and adapt it for whatever SDK you are using.

With regards to AWS .Net SDK with AppSync libraries, there is currently a feature request open for an AWS .Net SDK with AppSync libraries, but there is no timeline available for when this will be released. Although there is no timeline available for an AWS .Net SDK with AppSync libraries, please note that AppSync can be used from any SDK that has GraphQL capabilities.

===References===
[1] Mutations: https://docs.aws.amazon.com/appsync/latest/devguide/quickstart-write-queries.html#add-data-with-a-graphql-mutation
[2] Real-Time Data: https://docs.aws.amazon.com/appsync/latest/devguide/real-time-data.html
[3] Subscriptions: https://graphql-dotnet.github.io/docs/getting-started/subscriptions/
AppSyncwscat.docx

[Dids]

So why are there NuGet packages for both AppSync and Amplify, if neither are supported in C#/.NET?

The very existence of these packages, combined with the fact that they're actively maintained/new versions get released, it all just seems highly confusing, especially as the official documentation seems to be all over the place regarding this too.