React Native – How to setup push notification with Firebase (4)?
How to create DB for sending notification to a specific device? How to create related APIs? API of getting user id, fcmToken 2 APIs of […]
Software Development
React Native – UI/ UX (1)
How to create a React native theme? Create theme.js file Wrap theme content by styled-components Usage A global Toast with callback Button native-base How to […]
React Native Web – Installation
How to use react-native-web for existing ReactJs app (1)? You can install react-native-web for your existing npx create-react-app my-app Install babel-plugin-module-resolver plugin to resolve your project modules […]
TLS/SSL – Why is API call failed?
Error message: The SSL connection could not be established, CERTIFICATE_VERIFY_FAILED Check all latest vulnerability & misconfiguration SSL Labs by Qualys Certificate issuer, validity, algorithm used […]
Search tool – How to use ripgrep?
Installation Usage How to search all files in the current directory (and its subdirectories) for a string? How to search specific language files?
iOS Programming (1) – All about Swift
What’s optionals? Value of a variable is optional, it can be nil or not nil Define a variable Unwrap optionals Safety check How to write […]
PostgreSQL – How to use “upsert”?
If data exists, do nothing (don’t INSERT) If name column has same data, do nothing If data exists, UPDATE row Before After
How to make https request for your “localhost “?
how-to-get-https-working-on-your-local-development-environment Generate root SSL certificate This root certificate can then be used to sign any number of certificates you might generate for individual domains Generate […]
React Native – How to setup push notification with Firebase (3)?
How to send message from Node server, not by FCM console? Sending_Firebase_Cloud_Messages_from_a_Node.js_Server Prepare necessary data Get your Firebase DB URL Open Firebase project Create new […]
React Native – How to setup push notification with Firebase (2)?
Install “react-native-firebase” Android Download “google-services.json” file from Firebase Android There is step of generating debug signing certificatehttps://round.fun/2020/05/07/android-development-setup/ Paste “google-services.json” to “android\app\” folder Edit “/android/build.gradle“ Edit […]