Storage APIs (IndexedDB, WebSQL, LocalStorage) are limited in size for online web applications, is this the same for packaged Google Chrome applications ?
There is a permission, "unlimitedStorage", that unlocks some limitations.
There is an overview in the Apps docs: Managing HTML5 Offline Storage.
Also, note that packaged apps can't use some of the Web Platform features, namely localStorage and friends, as well as webSql are excluded (replaced respectively by chrome.storage and IndexedDB).
What you can use in a Chrome App:
chrome.storage.local
chrome.storage.sync (with quotas regardless of "unlimitedStorage")
IndexedDB
HTML FileSystem API for "virtual" filesystems
chrome.fileSystem for access to real filesystem via user prompts
chrome.syncFileSystem as a filesystem backed by Google Drive (obviously, limited)
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I am developing a PWA web client app. The data is stored on local IndexedDB.
Is there a way to sync the IndexedDB data to OneDrive with its api? Or I have to develop my own server for syncing data.
I have checked the OneDrive api, and I know it supports files sync. I don't know how draw.io does, seems like it saves the file to OneDrive.
Right now I am considering to change the app to Chrome extension with google sync or make an Electron app to use OneDrive to sync the data.
I have a Raspberry Pi3 device which has Android Things dev preview 0.6.1 installed. On completing certain operations, the device needs to send data to Google Cloud Storage. To do so it must have an API key to authenticate itself.
In Android devices it could be done easily using by integrating Google Sign in Option but since my Android Thing device doesn't have any interface, Google Sign In could not be implemented in it.
I have gone through github project Android Things Weather Station Sample which is using Google Service Account to publish data to PubSub. To do so, it generates and imports a credential.json file into the project and somehow generates credentials from it.
So my question stands is, without user consent, can we use Google Service Accounts to authenticate with Google Cloud Storage? If yes, how can we generate access token from it ? If no, is there any other method to authenticate with GCS?
The simplest and most secure way to authenticate your IoT devices with Google Cloud is using Cloud IoT Core to publish data over MQTT or HTTP into Cloud Pub/Sub. Cloud IoT Core is a bridge designed to securely manage large fleets of devices and authenticate them with your cloud project.
Take a look at the SensorHub sample app on GitHub, which is similar to the weather station, but uses Cloud IoT Core to authenticate and publish instead.
As Shubham stated, using a service account is one way to authenticate devices. Otherwise you'd need to build a mobile companion app which you use to authenticate the user. Then you would have to transfer that token to the IoT device.
In case anyone faces the same issue, I found this document which has explained the way to authenticate devices with Google Cloud without the consent of a user.
Azure App Services Mobile Apps can provide a Custom API hosting service which looks very similar to API Apps.
What is the real difference between the two?
Is it possible to consume Mobile Services from API Apps Node Backend ? Is there any Mobile Apps SDK available for NodeJS ?
https://azure.microsoft.com/en-us/documentation/articles/app-service-mobile-node-backend-how-to-use-server-sdk/
Azure API Apps is for hosting APIs that will be consumed from a variety of clients, and where it is acceptable to codegen a client, or make direct REST calls.
Azure Mobile Apps defines a client and server SDK with a protocol for communication that adds additional functionality for things such as offline sync. Offline sync is not possible with API apps, because there is no actual client SDK, just tools for generating one for different platforms.
Is it possible to host an Azure Mobile Service? (Published on my own server)
I only want to use the Mobile SDKs to sync tables on mobile applications, I don't need push notifications.
I also want to have a Web API controlling this data in the same project, is it possible without having NuGet Packages problems?
Other question, do I need the Azure Mobile Backend to make it work with the Mobile SDKs (iOS, Android, etc)?
If those solutions don't work, I'll be hosting this on Azure and probably managing the data with another Web API self-hosted.
You may want to consider Azure Mobile Apps which allows full control of your deployed site.
The Mobile Services backend, or Mobile Apps server SDK is required for the Azure Mobile client libraries to work.
I generated Access & Secret Key put it into Bucket Explorer just as I saw on their screenshots but I get an error that Keys are not recognized on AWS, so it keeps trying to connect to AWS. I have latest version for OS X.
Looking at the Bucket Explorer website, it sounds like you need a special version of their software -- however, the download link does not actually seem to have that version available. Have you contact the developers of Bucket Explorer about it?
Alternatively, you can use the Google Cloud Console to upload and access your data in Google Cloud Storage without depending on a particular client application.