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(PureBasic) 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.
IncludeFile "CkJsonObject.pb" IncludeFile "CkHttp.pb" Procedure ChilkatExample() ; This example requires the Chilkat API to have been previously unlocked. ; See Global Unlock Sample for sample code. http.i = CkHttp::ckCreate() If http.i = 0 Debug "Failed to create object." ProcedureReturn EndIf ; 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.) CkHttp::setCkAuthToken(http, "MICROSOFT_GRAPH_ACCESS_TOKEN") ; This example will get the DriveItems in /lots-of-files, which has 450 children.. CkHttp::ckSetUrlVar(http,"item_path","/lots-of-files") resp.s i.i numItems.i json.i = CkJsonObject::ckCreate() If json.i = 0 Debug "Failed to create object." ProcedureReturn EndIf CkJsonObject::setCkEmitCompact(json, 0) ; This loop will download DriveItems in sets of 50 until no more exist. bGetMore.i = 1 ; (Add the $top query parameter to define the page size, i.e. the max number of results to return). nextLink.s = "https://graph.microsoft.com/v1.0/me/drive/root:{$item_path}:/children?$top=50" While (bGetMore = 1) ; Get the next chunk of DriveItems resp = CkHttp::ckQuickGetStr(http,nextLink) If CkHttp::ckLastMethodSuccess(http) <> 1 Debug CkHttp::ckLastErrorText(http) CkHttp::ckDispose(http) CkJsonObject::ckDispose(json) ProcedureReturn EndIf ; The response should be JSON. CkJsonObject::ckLoad(json,resp) ; A successful response should return a status code of 200. If CkHttp::ckLastStatus(http) <> 200 Debug CkJsonObject::ckEmit(json) Debug "Response status = " + Str(CkHttp::ckLastStatus(http)) CkHttp::ckDispose(http) CkJsonObject::ckDispose(json) ProcedureReturn EndIf ; Iterate over the DriveItems in the JSON response: i = 0 numItems = CkJsonObject::ckSizeOfArray(json,"value") While i < numItems CkJsonObject::setCkI(json, i) Debug "name: " + CkJsonObject::ckStringOf(json,"value[i].name") i = i + 1 Wend ; If a nextLink was included in the JSON, use it to get the next set of 50 DriveItems. ; Otherwise, exit the loop. If CkJsonObject::ckHasMember(json,Chr(34) + "@odata.nextLink" + Chr(34)) = 1 nextLink = CkJsonObject::ckStringOf(json,Chr(34) + "@odata.nextLink" + Chr(34)) Debug "nextLink: " + nextLink Else bGetMore = 0 EndIf Wend CkHttp::ckDispose(http) CkJsonObject::ckDispose(json) ProcedureReturn EndProcedure |
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