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Questions tagged [aws-appsync]

AWS AppSync lets you build data-driven apps with real-time and offline-first capabilities based on GraphQL with custom resolver support for DynamoDB, ElasticSearch, AWS Lambda, and Local datasources.

1785 questions
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AppSync / Apollo - Subscription - Update nested array within a model

For a Chat app I am trying to update the Apollo cache for a nested array, so that when a message is received for any conversation, the user can see the latest message in real time. I have the following AppSync schema. type Conversation @model …
Dylan w
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What is a proper AWSJSON?

I have used this var jsonData = {"hello": 20}; while passing this to graphql query products:jsonData it fails with this error Validation error of type WrongType: argument 'input.products' with value 'StringValue{value='{hello: 20}'}' is not a…
user3697484
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How do you handle lists that require joined data from multiple data sources in AppSync/GraphQL?

type Employee { id: String! name: String lastObservedStatus: String } type Query { employees: [Employee] } This is a fictional schema to illustrate my question. I have two separate data sources that return lists that need to be…
Sean
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How can I use IAM to invoke AppSync wtihin AWS Lambda?

I'm currently in the process of implementing a subscription mutation within AWS Lambda using AppSync. I want to use IAM and avoid using any other type of AUTH mechanism as I'm calling it within the AWS stack. Unfortunately, I'm receiving the…
Jose A
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AWS amplify console.log() from backend side

I have set up a serverless express function (integrated with API gateway) using "amplify add api". If I log something from one of the routes for example: app.get('/items', function (req, res) {console.log('hello')} Where do I find the hello?
Sam Brodersen
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aws amplify codegen: how to generate base types for TypeScript?

I'm building a React + aws AppSync graphql web app with amplify. Have been enjoying this fantastic tool, but couldn't get the codegen to work as I expected - it doesn't generate base types for TypeScript frontend. Say I feed this schema.graphql file…
Stanley Luo
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AWS Appsync implementation using GraphQL-client library in .Net

I am trying to implement an app sync subscription similar to this python example but in .net https://aws.amazon.com/blogs/mobile/appsync-websockets-python/ I started this using the nuget package GraphQL.Client…
Jack
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Integrate unit testing for appsync mapping templates in serverless framework

Is there a method to create unit tests to test the queries and mutations of AWS AppSync before deploying it(using serverless framework). I have created appsync api and data source is relational database, but now i want to integrate test case for all…
Dharmendra Singh Negi
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Wrapping graphQL(appsync) with REST API using Amazon api gateway

I have a graphQL server deployed with aws appsync. The thing is that our customers prefer a standard REST API. I'm looking for the simplest way to wrap graphQL query with REST API. I'm considering using Amazon api gateway to make a REST endpoint,…
BSD
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Proper way to setup AWSAppSyncClient, Apollo & React

I've been having issues getting started with React, Apollo, and AWS-AppSync. I can't resolve this error message: TypeError: this.currentObservable.query.getCurrentResult is not a function I'm using the updated packages of @apollo/react-hooks and…
Ryne
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Proxy request to graphql server through AWS appsync

I have a graphql server on one of my EC2 instances running. I also have AWS appsync running, but at the moment it's integrated only with couple of lambdas. I'd like to connect my Appsync with graphql server, so Appsync will behave as a proxy for…
Pawel Kiszka
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Use a clientId without a client secret

In AppSync when I try to Login via Cognito User Pools and enters ClientID it gives an error Use a clientId without a client secret. I am entering only ClientID but it not proceeding
Haseeb Ahmad
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AWS Amplify - Pipeline Resolvers vs Lambda Resolvers

When you need to access multiple resources (eg different DynamoDB tables) from a single custom gql operation using AWS Amplify, why would you use pipeline resolvers over lambda resolvers, and vice versa? From reading around, there seems to be very…
pho_pho
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Getting error "Node is not supported" using aws amplify datastore on react native and expo

AWS introduced Amplify DataStore at re:invent 2019. Datastore is a persistent on-device storage repository for developers to write, read, and observe changes to data. According to the announcement does Amplify DataStore allows developers to write…
Sma Ma
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Query DynamoDB with multiple begins_with clause in AppSync

I'm currently trying to create a dynamic query using AppSync and Apache Velocity Template Language (VTL). I want to evaluate series of begins_with with "OR" Such as: { "operation": "Query", "query": { "expression": "pk = :pk and…
Jose A
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