I am new in flutter development and have a database (not firebase!) server with a huge list (2,7MB) I want to make avaliable offline in my flutter app.
Because of it's size I don't want the user to download the entire database at any time but only data that is not already in the current database.
Is there a method / flutter package I can use for this problem?
Thanks! :)
Reload the entire database on startup => took too much time on startup
Related
In my app I used firestore database. Its working fine on online. But Now I want to use local storage as sqlLite. When my device is offline, data will save on sqlLite database and when the device is back to online it push the data to firestore database.
I used Flutter to develop the app. Can anyone please help me with this?
Firebase works as an offline database as well. When there is no Internet connection, all data changes are kept offline and then pushed to the cloud once it is possible.
If you insist on using a different database offline, I would recommend using Hive, since it also allows storing data in a document format.
I am new to app development and I am thinking about creating an app which will store all the anime that you are currently watching or have watched in the past. The purpose of this app is to store your progress of an anime/manga so that if you forget which chapter you were on the last time you watched/read the anime or manga.
My plan is to connect this app to myanimelist website and use its feature on my app to find an anime. Then if the user adds the anime to his watch-list then it will store the important data e.g., name, description, author, Image.
I am totally new to app development and I have to create an app for the final year project. As on how to start the app or the resources required I am at loss.
The main topic of my concern is on how I should handle the use of website data or the connection to the database. Is something like using SQL queries? Which database should I use to store the data on local device?
Any help is appreciated.
Your questions
how I should handle the use of website data or the connection to the database.
if You have an API that you are using for your website, then you can use that API to fetch data in your flutter app.In case your don't have an API you have to create one for your app.
Which database should I use to store the data on the local device?
For storing data to the local device you can use sqflite package for flutter to store data. Using sqflite you can write simple SQL queries to fetch or store data in the
database.
Ask if you have any problems.
I'm currently working on a React Native application, the server is already implemented and my app should implement offline sync, I'm planning to integrate realm on the mobile device to deal with the offline data and pushing the data to the implemented server when the device is online. How would I go about doing that?
I'm trying also to make some kind of offline sync. A calendar app that works offline.
I'm developing it on ionic 4 using sqlite.
Basically, what I did is: I keep a variable with my last update timestamp.
Part 1
Get activities.
A service is running on the background, getting from the backend activities that their creation timestamp is later than the mobile last update timestamp.
Part 2
Every time the user create an activity I add the timestamp to the activities table and a flag called synced that is true / false.
Another service scans the table for synced === 'false' and does the POST request.
Hope I helped.
I know that it is possible to create dashboards using data studio from various data sources. My question is whether is it possible to visualize a real time data graph using data studio, as in case of data coming from IoT devices?
EDITED
I am uploading a file from my local machine now. So I think now it's not possible to visualize the changes in the data studio if I change any data within my machine.
What I am asking is however is that, is it possible to visualize any changes occured in a google sheet in data studio in real time. Say that I changed or added some new data rows into my google sheet, is it possible in data studio to see those changes in real time?
Yes, it is possible with implementing custom script for refreshing the reports.
I'm feeding in a sheet that is using data supplied by the Google Sheets Google analytics plug-in, and that is definitely updating in Data Studio as the Google sheets report updates.
Data Studio currently does not support automatic real time updates / streaming data. After you open a dashboard, the only way to re-fetch the data is to use the dashboard's refresh feature.
If you require real time updates in your dashboard, please put in feature requests / vote for them in the issue tracker.
Edit: There is a third party Chrome extension that lets users auto refresh dashboards (does not work with Viewer credentials).
I try to setup a deployment workflow, but I am completely new to it. I consider to use Git and Bamboo and in this whole thing I am stuck with the database.
Let's say I want to make changes on a CMS website and keep my files versioned on git (bitbucket), I understand how to setup Bamboo that it can SCP the files to my webserver, but I don't get it how I can get the database into this whole system? Are there any tools I am missing?
What I want:
I want to be able to checkout my website files from the gitserver, make changes and send them back to the gitserver and this (via Bamboo) should push the files to the live or testserver.
But even after searching for hours, I don't get a smooth way how to handle the database (getting it local, making changes and pushing it to the server via git) or any other smooth way.
I know there are tools to quickly dump the db for WordPress sites, but for other CMS there are no such tools.
Any advice how to do this right?