I have basic understanding of .net and chatbot.
I wanted to integrate Amazon lex in xamarin(ios, android)app. There seems to be no example or sample. I have created chatbot from AWS platform intent and slots.
Also I wanted to use database to get query return. Any sample to integrate AWS Lex with Xamarin app would be helpful.
As I understand from your question, you already have some implementation of chatbot made with AWS services, but you are having issue on integrating it to your xamarin application to be able to use it in IOS and Android devices.
For that purpose, there is AWS Mobile SDK which happens to support also xamarin.
From their link:
https://docs.aws.amazon.com/mobile/sdkforxamarin/developerguide/Welcome.html
I also did not find a Lex tutorial directly, but a very promising quote:
Supported AWS services currently include, but are not limited to [narrow list of services]
was on the same page. I looked around, found this text:
The AWS Mobile SDK for .NET and Xamarin also allows you to use most of the AWS services supported by the AWS SDK for .NET. The AWS services specific to mobile development are explained in this developer guide. For more information about the AWS SDK for .NET, see [a link]
clicked the link and ended here:
https://docs.aws.amazon.com/sdkfornet/v3/apidocs/Index.html
and under link AmazonLex -> AmazonLexClient there was something, you probably wanted to see:
Version Information
.NET Standard:
Supported in: 1.3
.NET Framework:
Supported in: 4.5, 4.0, 3.5
Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms
Those 3 last let me understand that whenever you setup Mobile SDK, you get access to AWS services in Xamarin, also Lex.
Steps to install on
https://docs.aws.amazon.com/mobile/sdkforxamarin/developerguide/setup.html
mainly contain steps on how to create xamarin app and get AWS account, most important is to install the AWS Mobile SDK for .NET and Xamarin and configure it. More detailed steps are under that link.
After that the process is to follow the instructions on:
https://aws.amazon.com/getting-started/projects/bots-just-got-better-net-toolkit-lex-lambda-cognito/module-one/
like pointed in comments. I suppose once you have access to any service via Mobile SDK, the wire up of Lex may go in similar steps and no special just xamarin tutorial is not needed anymore.
It seems you are looking for both architecture and sample code for implementing AWS Lex bot with .NET backend that can be integrated with iOS/Android Frontend.
You have multiple choices here to do it
Build both chat user interfaces in iOS and Android and integrate them AWS iOS & Android SDKs to utilize the AWS LEX bot.
Just implement a bot user interface in iOS and Android app and integrate it with a .NET backend that can utilize AWS .NET SDK to integrate with your LEX bot.
I would recommend the second approach as it will save you writing the LEX integration code twice both in Android and in iOS. In the second appraoch you will be able to write a single integration for AWS LEX in .NET and that can give a unified experience across the mobile devices(iOS/Android)
Now for the .NET based backend integration with AWS LEX bot.
If you are an experienced .NET developer and you know how will you host your code then only thing that you need is the .NET API reference for AWS LEX, which can be found here
https://docs.aws.amazon.com/sdkfornet/v3/apidocs/items/Lex/TLexClient.html
But if you are not sure how to write this integration code and also not sure how the deployment will look like then you can follow the below tutorial
Bots Just Got Better with .NET and the AWS Toolkit for Visual Studio
Also, find here the architecture form the above tutorial
there is no direct solution like Amazon Lex is supported by React-native. i confirmed with xamarin team as well as AWS service one of the member. direct integration not possible.
Related
I would like to integrate Amazon Lex with the Microsoft Bot Framework.
There is a default integration between Microsoft LUIS NLP and the Microsoft Bot Framework but we want to integrate with Amazon Lex instead. Is there a way that such an integration can be achieved and if so how?
I'm trying to do the exact same thing, and am having a lot of difficulty! At the moment I have found you can connect MS Bot Composer with Alexa using a built in configuration in Composer, I thought that might be a compromise, but there are problems connecting Alexa to an AWS account. I am currently investigating putting Twilio in between Lex and MS Bot as another possible solution.
I am using dynamoDB in my application ,
but I need my application to work in the offline mood too ,
so I am trying to use appsync for the offline mode .
but I don't know if it is available for xamarin or not
I see in its documentation that it supports android and ios ,
but did it support Xamarin (directly or even implementing it in android and ios native first then attach it to Xamarin ? )
appsync documentation : https://docs.aws.amazon.com/appsync/latest/devguide/welcome.html
and if it is available is there is any tutorial or sample code for this ?
any help please ?
Thank you .
Well, I think you should go through their documentation for Xamarin and .Net
In the Setting Up the AWS Mobile SDK for .NET and Xamarin, they have given their own samples to refer to!!
Following are the links for each service that they provide for Xamarin
Cognito Identity
Cognito Sync
Dynamo DB
Mobile Analytics
S3
SNS
From what I understand App sync is not a part of the available official SDK's
But if you check the GitHub issue for the same which is here https://github.com/aws/aws-sdk-net/issues/901 and check the comment by NeilBostrom he has a way of doing it through GraphQL
Goodluck!
Feel free to get back if you have queries
I'm trying to setup Amazon Cognito with a custom UI I've set up in Swift for iOS. The built-in UI from the Amazon iOS SDK doesn't fit the look of the app, so I can't use it.
Anyone here have advice on how to use Amazon Cognito with a custom UI?
This tutorial shows me how to use Cognito, but NOT using a custom UI.
There are two available AWS SDKs to satisfy this use-case:
The AWS iOS SDK[a].
The AWS Amplify iOS SDK[b].
For a sample app that you could use as a reference while writing code, you could also take a look at this iOS application[c], and build your own application with a custom UI while referring to the steps in the readme of the application. This Github repository has codes both in Objective C and Swift, which is another bonus.
References
[a]. https://github.com/aws-amplify/aws-sdk-ios
[b]. https://aws-amplify.github.io/docs/ios/authentication
[c]. https://github.com/awslabs/aws-sdk-ios-samples/tree/master/CognitoYourUserPools-Sample
how to use AWS RDS in flutter dart code?
I went through - this post
It says -
I work on the AWS SDK team. I am not aware of any plans to support Flutter at this point. I will take this to my team as a feature request and will post back
Should I do as suggested here?
Build your own service layer using HTTP, gRPC that talks to some backend service that provides access to a data store. You can do this with Express, Rails, CloudFunctions, etc.
You can either use dart code to do HTTP/gRPC, or use Platform channel to wrap dart code around native iOS and Android code of AWS official SDK.
On another note, I'm highly concerned when you connect directly from mobile (Flutter) to database (AWS RDS). Please be aware that anything on mobile app can be reversed engineer, and your database connection credential is not safe. It's recommended to have only backend proxy, or at least severless (such as AWS lambda function) connect directly to database (not mobile or web frontend). The only exception is with Firebase Realtime Database because it has seamless integration with Firebase Authentication
I am developing an app on both j2me and windows phone 8 platform and the app will need to access the Amazon SQS.
Of course this has to be done securely. I can only see the android and ios sdk, how do I securely (with the token vending machine) access the Amazon SQS on other platform other than ios and android?
While there is no TVM sample for C#, you may be interested in this blog post - http://notebookheavy.com/2012/04/19/amazon-simpledb-for-windows-phone-part-4-tvmclient/
The author has converted much of the Android implementation into C# and it may give you a head start.
You may also be interested in using web identity federation. This blog post explains how to use that with the AWS SDK for .NET.