1 day agoMember-onlyAWS Cognito Authentication using Auth0 as OpenID Connect ProviderIn many cases, we want to have access controls to our service. AWS Cognito provides us with a way to authorize users' access to AWS resources. While there are a few options for implementing authentication with Cognito(including AWS Amplify/Cognito User Pool), Auth0 has excellent benefits: Simple yet customizable Universal login …AWS4 min read
Published in Level Up Coding·Jul 29, 2021Member-onlyDeploying multiple Lambda functions in one CloudFormation stackWhen adding a new function with Amplify, it will create a new stack on CloudFormation. If your project or team becomes larger this could cause an issue because CloudFormation allows you to create 200 stacks maximum per AWS account. As a workaround, we can deploy multiple functions from one resource…AWS3 min read
Published in AWS in Plain English·Jul 26, 2021Member-onlyFrontend Implementation Tips for Pinpoint and AWS Amplify on React NativeWhen you start using Amplify for your project, you will be surprised how much it will automate complicated development processes that lie along the way. However, when it comes to integrating push notifications, it’s not so helpful. …AWS6 min read
Jun 25, 2021Member-onlyMocking Camera functionality on iOS simulator with React NativeWhen you build an app that has a Camera functionality, you need to use a real device to go through the photo shooting process. However, sometimes you want to just use a simulator. There are few approaches you can take: Use Camera Library that supports iOS simulator like https://github.com/teslamotors/react-native-camera-kit Add…React Native4 min read
Published in Geek Culture·Jun 20, 2021Member-onlyProvisioned Concurrency with Amplify Lambda functionProvisioned Concurrency is a feature that keeps Lambda function up and running. Although Amplify does not support this feature out of the box, we can automate generating Provisioned Concurrency by customizing a CloudFormation file. In this article, I’m sharing a few tips to address Amplify specific issues for Provisioned Concurrency…Amplify4 min read
Published in Level Up Coding·Feb 22, 2021Member-onlyGotchas using React Apollo MockProviderMockProvider is a recommended way of mocking requests and results of Apollo client. The sample code seems to be straightforward, but when it comes to real-world usage, you can hit some stumbling blocks. Although there is already a great article on medium about MockProvider usage tips, I still spent a…React4 min read
Nov 4, 2020Member-onlyPitfalls I fell into during Apollo Client 3.0 migrationRecently I worked on migrating Apollo Client to 3.0 from 2.6 in our project. There are quite a few updates in Apollo 3.0 so I never underestimated the complexity of upgrading this library, but still, it took a few days to complete the task. …Apollo Client4 min read
Published in ProAndroidDev·Apr 5, 2020What to expect when converting an iOS app to an Android app in React NativeRecently, I worked on developing an Android app for my company’s product, which we have released an iOS app over a year ago. Since we are using React Native, a lot of code worked without making any change. …Android App Development8 min read
Feb 20, 2020Member-onlyHow to programmatically control Preview size of Android camera appIt’s been a while since I posted an article about how we take a photo using Camera2 API. Today I’m going to share the way to control the screen size of the preview. First, let me go through the necessary steps to configure the preview screen. Then I will explain…Android5 min read
Published in ProAndroidDev·Nov 4, 2018Understanding Camera2 API from callbacks(Part 2)In the previous article, I explained how the preview and rendering work when the camera is launched with Camera2 API. Now we go to the next step, taking a photo. Once again, here’s the sample project I made for this series of article. It’s forked from https://github.com/googlesamples/android-Camera2Basic tomoima525/android-Camera2Basic Contribute to tomoima525/android-Camera2Basic development by creating an account on GitHub.github.comAndroid App Development4 min read
