Learn how to call an AWS AppSync API from a Lambda function using Node.js fetch. Dive into the simplicity of GraphQL APIs and how they are essentially REST APIs with an extra layer. This article is packed with code examples and insights.
Discover how to send SMS push notifications using Amazon SNS and AWS Lambda. Dive into a step-by-step guide, complete with CloudFormation templates and Lambda function code, to seamlessly integrate SMS notifications into your applications.
Streamline complex operations in AppSync with pipeline resolvers. Break down tasks into manageable steps, enhancing data integrity and operational efficiency in your GraphQL APIs.
Ensure consistent access to whitelisted resources in AWS. Learn how to configure a VPC that provides Lambda resolvers with a static IP, optimizing security and connectivity.
Enhance your AppSync's flexibility with Lambda resolvers. Delve into custom logic, integrations, and CRUD operations, paving the way for dynamic and robust GraphQL APIs.
Simplify your GraphQL API setup with DynamoDB resolvers in AppSync. Explore step-by-step CRUD operations, ensuring efficient data management in your serverless applications.
Unlock the power of granular access control in AWS S3. Discover how to combine S3 with Cognito's AuthRole to provide users with tailored access, enhancing both security and user experience.
Dive into the seamless integration of AWS AppSync and API Gateway. Learn how to bolster your application's security and efficiency by setting up multiple Cognito User Pools for distinct user roles.
Discover how to set up serverless backend CRUD operations using AWS API Gateway and DynamoDB, without the need for AWS Lambda. Learn from simple to complex examples, including JWT token and AWS Cognito authentication.
Discover how to navigate the pitfalls of programming with timezones. Learn from real-world examples on how incorrect timezone handling can lead to serious bugs in applications, and get expert advice on using a UTC approach to ensure the reliability of your code across different regions
This tutorial explains how combining different groups from two user pools in the same API can provide a flexible and secure authentication and authorization system for your AppSync GraphQL API. The article also includes a YAML CloudFormation template to help you create two Cognito user pools, an AppSync GraphQL API, and a GraphQL schema. Additionally, the article provides a personal opinion on the importance of adopting a learn-by-doing approach to be more effective in problem-solving.
Learn how to implement cost-effective NFT clones using the BeaconProxy and UpgradableProxy patterns. This article explores the architecture of an NFTFactory smart contract to produce upgradable NFTs, combining efficiency with flexibility.
Learn how to set up a Filecoin Lotus node on Amazon Web Services EC2 instance and connect to its JSON RPC API from your backend. Listen directly to the Filecoin blockchain and react to its events without the need to use a third-party service.