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(Visual FoxPro) 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.
LOCAL loHttp LOCAL lcResp LOCAL i LOCAL lnNumItems LOCAL loJson LOCAL lnBGetMore LOCAL lcNextLink * This example requires the Chilkat API to have been previously unlocked. * See Global Unlock Sample for sample code. loHttp = CreateObject('Chilkat_9_5_0.Http') * 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.) loHttp.AuthToken = "MICROSOFT_GRAPH_ACCESS_TOKEN" * This example will get the DriveItems in /lots-of-files, which has 450 children.. loHttp.SetUrlVar("item_path","/lots-of-files") loJson = CreateObject('Chilkat_9_5_0.JsonObject') loJson.EmitCompact = 0 * This loop will download DriveItems in sets of 50 until no more exist. lnBGetMore = 1 * (Add the $top query parameter to define the page size, i.e. the max number of results to return). lcNextLink = "https://graph.microsoft.com/v1.0/me/drive/root:{$item_path}:/children?$top=50" DO WHILE (lnBGetMore = 1) * Get the next chunk of DriveItems lcResp = loHttp.QuickGetStr(lcNextLink) IF (loHttp.LastMethodSuccess <> 1) THEN ? loHttp.LastErrorText RELEASE loHttp RELEASE loJson CANCEL ENDIF * The response should be JSON. loJson.Load(lcResp) * A successful response should return a status code of 200. IF (loHttp.LastStatus <> 200) THEN ? loJson.Emit() ? "Response status = " + STR(loHttp.LastStatus) RELEASE loHttp RELEASE loJson CANCEL ENDIF * Iterate over the DriveItems in the JSON response: i = 0 lnNumItems = loJson.SizeOfArray("value") DO WHILE i < lnNumItems loJson.I = i ? "name: " + loJson.StringOf("value[i].name") i = i + 1 ENDDO * If a nextLink was included in the JSON, use it to get the next set of 50 DriveItems. * Otherwise, exit the loop. IF (loJson.HasMember('"@odata.nextLink"') = 1) THEN lcNextLink = loJson.StringOf('"@odata.nextLink"') ? "nextLink: " + lcNextLink ELSE lnBGetMore = 0 ENDIF ENDDO RELEASE loHttp RELEASE loJson |
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