Front-End Web & Mobile

How to connect your GraphQL API to AWS data sources

What’s a resolver? A GraphQL Resolver is a function or method that resolves a value for a type or field within a schema. A resolver is the key architectural component that connects GraphQL fields, graph edges, queries, mutations, and subscriptions to their respective data sources and microservices. In this post, we’ll focus on how to build […]

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Client A inserted data into the AWS AppSync endpoint in Ireland. This data was in turn inserted into Amazon DynamoDB, which replicated the data to Sydney. In Sydney, Amazon DynamoDB streams trigger AWS Lambda functions which notify the AWS AppSync endpoint to the new data. Client C receives the new data via its subscription

Multi Region Deployment of AWS AppSync with Amazon DynamoDB Global Tables

As organizations grow, they often need to serve geographically dispersed users with low latency, prompting them to have a distributed global infrastructure in the cloud. By leveraging the AWS Global Network to deploy applications into multiple AWS Regions, organizations can allow their users to connect to an API endpoint in the Region with the lowest […]

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New in AWS Amplify Flutter version 0.4.0

This blog post was written by Abdallah Shaban – Senior Product Manager at AWS Amplify and Ashish Nanda – Tech Lead at AWS Amplify. We are announcing the release of version 0.4.0 of the Amplify Flutter library. Please use this Github repo to inform the Amplify Flutter team about features or issues, or visit the […]

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Evolving REST APIs with GraphQL using AWS AppSync Direct Lambda Resolvers

AWS AppSync is a managed GraphQL service that makes it easy to connect disparate data sources into a single cohesive API. GraphQL APIs start with the definition of a schema that defines the data types and queries for accessing them. Data Sources are the backend services that the API will use to fulfill requests. Finally, […]

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Apollo GraphQL Federation with AWS AppSync

This article was written by Florian Chazal, Senior Specialist Solutions Architect, AWS     Apollo Federation is an architecture and specification used to build and connect multiple distributed backend GraphQL (micro)services, exposing a single endpoint and GraphQL schema to API clients and consumers. In this post we explain how to setup an Apollo Federation Gateway […]

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Amazon Location Service enables Matrix Routing to optimize route planning

Amazon Location Service introduces Matrix Routing as a new feature to Routes that lets you calculate routes between one or more departure and destination positions. Matrix Routing will return the shortest time and distance between each departure and destination point in your Matrix. With Amazon Location Matrix Routing, you can specify additional routing parameters for […]

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Simple serverless WebSocket real-time API with AWS AppSync (little or no GraphQL experience required)

AWS AppSync simplifies application development by letting applications securely access, manipulate, and receive data as well as real-time updates from multiple data sources, such as databases or APIs. Taking advantage of GraphQL subscriptions to perform real-time operations, AppSync can push data to clients that choose to listen to specific events from the backend. This means […]

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Introducing server-side caching item eviction for AWS AppSync

AWS AppSync is a managed serverless GraphQL service that makes it easy to securely connect to data sources such as Amazon DynamoDB tables, AWS Lambda functions, and more. AppSync offers managed server-side caching that reduces the need to fetch data from your data sources for every single request. This lets developers optimize their GraphQL APIs, and […]

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Introducing configurable batching size for AWS AppSync Lambda resolvers

AWS AppSync is a serverless GraphQL service that makes it easy to create single endpoint GraphQL and realtime APIs. AppSync lets you combine disparate data sources and deliver the results to applications in an expected format, as specified by your API’s schema definition. Customers use resolvers attached to AWS Lambda functions to retrieve data from various […]

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Building a reusable testing pipeline for AWS Amplify plugins

Amplify Video is an open source plugin for the Amplify-CLI that lets you quickly add live and video-on-demand streaming to your Amplify-powered applications. The Amplify Video community recently posted a recent article to the AWS Media Blog detailing their testing implementation testing for the plugin. If you’re building your own plugins or just curious to […]

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