🔍 Lookup and Manage Documents

Once your DocumentStore is initialized and populated, you can fetch, list, and manage documents within it.

Listing and Fetching Documents

You can retrieve all documents stored in the DocumentStore using DocumentStore#listDocuments. For each document ID retrieved, use DocumentStore#lookupDocument to get the corresponding document object.

Example: Listing Documents

1: Define the listDocuments function

class App {
    suspend fun listDocuments(): MutableList<Document> {
        val documents = mutableStateListOf<Document>()
        for (documentId in documentStore.listDocuments()) {
            documentStore.lookupDocument(documentId)?.let { document ->
                if (!documents.contains(document)) {
                    documents.add(document)
                }
            }
        }
        return documents
    }
}

2: Implement the UI for listing documents

class App {
    fun Content() {
        MaterialTheme {
            Column {
                // ...

                var documents = remember { mutableStateListOf<Document>() }

                LaunchedEffect(isInitialized.value, documents) {
                    if (isInitialized.value) {
                        documents.addAll(listDocuments())
                    }
                }

                if (documents.isNotEmpty()) {
                    Text(
                        modifier = Modifier.padding(4.dp),
                        text = "${documents.size} Documents present:"
                    )
                    for (document in documents) {
                        Row(verticalAlignment = Alignment.CenterVertically) {
                            Text(
                                text = document.metadata.displayName ?: document.identifier,
                                modifier = Modifier.padding(4.dp)
                            )
                            // delete button from the next step goes here
                        }
                    }
                } else {
                    Text(text = "No documents found.")
                }
            }
        }
    }
}

Deleting Documents

To remove a document from the DocumentStore, use the DocumentStore#deleteDocument(identifier: String) method and provide the document's identifier.

Example: Deleting a Document

You can add the following code to add a small delete button to the listing we implemented above. We use a simple IconButton with the default delete icon.

IconButton(
    content = @Composable {
        Icon(
            imageVector = Icons.Default.Delete,
            contentDescription = null
        )
    },
    onClick = {
        coroutineScope.launch {
            documentStore.deleteDocument(document.identifier)
            documents.remove(document)
        }
    }
)

Refer to this Document Listing & Deletion code for the complete example.

By following these steps, you can efficiently list, fetch, and delete documents managed by your DocumentStore, ensuring your application's document management remains clean and up-to-date.