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(Java) OneDrive -- List Large DirectoryDemonstrates how to get the entire collection of DriveItem children when the collection is large and multiple pages need to be requested. To test this example, I created a DriveItem with 450 children. Note: This example requires Chilkat v9.5.0.68 or greater.
import com.chilkatsoft.*; public class ChilkatExample { static { try { System.loadLibrary("chilkat"); } catch (UnsatisfiedLinkError e) { System.err.println("Native code library failed to load.\n" + e); System.exit(1); } } public static void main(String argv[]) { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkHttp http = new CkHttp(); // Use your previously obtained access token here: // See the following examples for getting an access token: // Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint). // Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint). // Refresh Access Token (Azure AD v2.0 Endpoint). // Refresh Access Token (Azure AD Endpoint). // (Make sure your token was obtained with the FilesRead or Files.ReadWrite scope.) http.put_AuthToken("MICROSOFT_GRAPH_ACCESS_TOKEN"); // This example will get the DriveItems in /lots-of-files, which has 450 children.. http.SetUrlVar("item_path","/lots-of-files"); String resp; int i; int numItems; CkJsonObject json = new CkJsonObject(); json.put_EmitCompact(false); // This loop will download DriveItems in sets of 50 until no more exist. boolean bGetMore = true; // (Add the $top query parameter to define the page size, i.e. the max number of results to return). String nextLink = "https://graph.microsoft.com/v1.0/me/drive/root:{$item_path}:/children?$top=50"; while ((bGetMore == true)) { // Get the next chunk of DriveItems resp = http.quickGetStr(nextLink); if (http.get_LastMethodSuccess() != true) { System.out.println(http.lastErrorText()); return; } // The response should be JSON. json.Load(resp); // A successful response should return a status code of 200. if (http.get_LastStatus() != 200) { System.out.println(json.emit()); System.out.println("Response status = " + http.get_LastStatus()); return; } // Iterate over the DriveItems in the JSON response: i = 0; numItems = json.SizeOfArray("value"); while (i < numItems) { json.put_I(i); System.out.println("name: " + json.stringOf("value[i].name")); i = i+1; } // If a nextLink was included in the JSON, use it to get the next set of 50 DriveItems. // Otherwise, exit the loop. if (json.HasMember("\"@odata.nextLink\"") == true) { nextLink = json.stringOf("\"@odata.nextLink\""); System.out.println("nextLink: " + nextLink); } else { bGetMore = false; } } } } |
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