I finish my one app and I try to make standalone app and send to users
This android app is my 1st time
I want to know is firebase firestore is free or not
what need to do more
I store data in firestore
if this app use in public ,what are requirement
thanks
Yes you can. By default, a project on firebase uses the free Spark Plan. It offers some limited services for free. You can check the details here
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In order to quickly prototype ideas for a personal project I'm interested in a solution where I use Prisma directly from a react native app. (I'm aware this is not something you'd do in production.) Data for the single user app would be stored in some free SQL cloud DB. I would store auth information locally in the client.
Is this possible just like it would be possible in a nodejs Cli or webapp?
Currently Prisma only works on servers so you would need to use it on Node. There's a request for react-native support so you can add upvote the request.
There seem to be no direct support for React Native through Cosmos DB SDK or npm packages. The JS package #azure/cosmos while works on React Native for the Web, but does not build for the native apps. It fails to build due to Cryto incompatibility.
While Resource Tokens can serve as a solution for authentication, but App still needs to interact with the DB resources using an API.
So, how to go around this? Is utilizing Azure Functions as a mid-tier the only workaround?
Thanks
If you need basic functionality like querying, creating new items etc, you can get the react-native-azure-cosmos package.
However the functionality is a very limited subset of the full JS SDK.
There is no official SDK for now to target react native applications.
You will need to use an API App or Function app to interact with CosmosDB and call the HTTP endpoints from your device.
I need to implement push notification to our Android App using Xamarin. Here is the process. We have web version which used by the Manager. The Manager creates and assign job to the driver. The App version is used by the Driver where it shows the list of jobs and processes of job until its complete. So, when the Manager assigned the Job to the Driver in the Web version, it will then notified to the Driver in the App version that "new job is assigned". Basically, both the web and app uses same database then we created an api(REST API in MVC C#) to connect and get data from the db to be used in the mobile app.
Can someone recommend to me which Push notification plugin(a plugin or nuget) should I use to do this? Currently, I have set up Push Notifications through App center & Firebase but not sure how this work.
Thank you.
I need to implement push notification to our Android App using Xamarin.
I would suggest you use Firebase for mobile push notifications for Android as it is a product by Google, and was made for mobile applications. For push notifications, you will be using Firebase Cloud Messaging also known as FCM. See to it that you are well versed on how it works before you start coding anything read the documents it answers most of your questions there itself.
The Manager creates and assign job to the driver. The App version is used by the Driver where it shows the list of jobs and processes of a job until its complete. So, when the Manager assigned the Job to the Driver in the Web version, it will then notified to the Driver in the App version that "new job is assigned". Basically, both the web and app use the same database then we created an API(REST API in MVC C#) to connect and get data from the DB to be used in the mobile app.
For this, you will have to check on how to work with Firebase using Rest-API. Once you configure the Rest-API and then apply your business logic to it things will be quite easier than you might have imagined.
Can someone recommend to me which Push notification plugin(a plugin or NuGet) should I use to do this?
My recommendation is quite simple, Do not use any sort of a firebase push notifications plugin!. I have had a very bad past with plugins and ever since then I never recommend fellow developers to use plugins until it is a well-maintained one. I would rather ask you to simply configure Firebase on the basis of the guides that are available online. Like the following Xamarin.Android guide for FCM. It is detailed contains everything that you are looking for and what else I would suggest is you check firebase related answers on SO and you will find that almost everything that is not available in docs is covered around here and in detail. Like the following:
How to handle Firebase Notification i.e. Notification Messages and Data Messages
Push Notification in android with firebase get token
How to send device to device messages using Firebase Cloud Messaging?
Receive push notifications on one android app from two Firebase projects
I have a dapp for web application. Users have metamask installed in the Chrome browser. They make transactions using metamask. Now I want the same application to be developed in iOS using react-native. How to develop this? For browser when users want to make any transaction simply metamask pop ups and asks for confirmation.
How about in mobile devices? How they are going to install metmask in the devices and make transactions in mobile device. Is is possible to achieve this? How can I develop this app?
Your iOS app can communicate with iOS wallets using WalletConnect mobile linking. This fulfils a similar functionality as MetaMask pop-up on desktop environments.
Yes, you don't need metamask for your application. (And I am yet to see someone use it in an app built in React Native.)
Metamask is essentially a wallet which 'injects' into various services on the web. But it is nothing more than a wallet that manages your identit(y/ies).
The features you'd need in your React app would need:
Managing identities (private and public keys.)
Ability to sign transactions.
Then you might want to use extra features such as:
Importing keys
Updating balances
Recording transasctions, etc.
If you're using web3.js, then you need to start here: web3.eth.accounts and look into wallets on the same page.
For React Native, you can use the Moralis SDK https://moralis.io/
If you're developing a native app with Swift, you can use the v1 WalletConnect SDK https://github.com/WalletConnect/WalletConnectSwift.
Also, I'm working on a package (on top of WC) that already has all the configuration for it: https://github.com/maurovz/Glaip
I found some tutorials about offline mode firebase for React-native but still I don't know how can I enable this thing in my application.
So, how can I store all recieved data and run the functions in offline mode?
you can search on persistence in the firebase component you use and set it to true
an popular one is react-native-firebase
and you can set this in it's configuration-options