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This is our documentation for beta version of QuickBlox Flutter SDK. Please contact our Customer Support Team to provide your feedback, suggestions, and requests to improve this page.

The content module allows storing rich chat attachments, app content, and settings without having to republish them. Using a web interface you or your clients can control and make instant changes to the apps.

Visit our Key Concepts page to get an overall understanding of the most important QuickBlox concepts.

Before you begin

1. Register a QuickBlox account. This is a matter of a few minutes and you will be able to use this account to build your apps.
2. Configure QuickBlox SDK for your app. Check out our Setup page for more details.
3. Create a user session to be able to use QuickBlox functionality. See our Authentication page to learn how to do it.

Upload file

Upload a file to the cloud using the following code snippet.

String url = "content://images/test.jpg";
bool public = false;

try {
  QBFile? file = await QB.content.upload(url, public: public);
} on PlatformException catch (e) {
  // Some error occurred, look at the exception message for more details
}

The maximum size of the uploaded file depends on the membership plan.

Get file info

Get information about a file by ID using the getInfo() method below. This method allows to load the file description model from the server, not the content of the file itself.

int fileId = 98239423;

try {
  QBFile? file = await QB.content.getInfo(fileId);
  if (file != null) {
    int id = file!.id;
    String uid = file!.uid;
  }
} on PlatformException catch (e) {
  // Some error occurred, look at the exception message for more details    
}

Get file URL

There are two types of file URLs that can be obtained: private and public.

• Public URL allows anyone to access the file, no authorization token is needed.
• Private URL can be accessed only by QuickBlox user with a session token.

Get public URL

To receive a public URL, use the code snippet below.

String fileUid = "sdfldsj890dfLKJJerJdkn8";

try {
  String! url = await QB.content.getPublicURL(fileUid);
} on PlatformException catch (e) {
  // Some error occurred, look at the exception message for more details
}

Get private URL

To get a private URL of the uploaded file, use the following code snippet.

String fileUid = "sdfldsj890dfLKJJerJdkn8";

try {
  String! url = await QB.content.getPrivateURL(fileUid);
} on PlatformException catch (e) {
  // Some error occurred, look at the exception message for more details
}