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(PowerBuilder) List all Pages of Files in Google DriveDemonstrates how iterate over pages to list files in Google Drive. See Google Drive Files list for more optional HTTP parameters.
integer li_rc integer li_Success oleobject loo_GAuth oleobject loo_Rest integer li_BAutoReconnect oleobject loo_Json integer i integer li_NumFiles string ls_JsonResponse integer li_PageNumber string ls_PageToken integer li_BContinueLoop integer li_BHasMorePages li_Success = 1 // It requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // This example uses a previously obtained access token having permission for the // Google Drive scope. loo_GAuth = create oleobject // Use "Chilkat_9_5_0.AuthGoogle" for versions of Chilkat < 10.0.0 li_rc = loo_GAuth.ConnectToNewObject("Chilkat.AuthGoogle") if li_rc < 0 then destroy loo_GAuth MessageBox("Error","Connecting to COM object failed") return end if loo_GAuth.AccessToken = "GOOGLE-DRIVE-ACCESS-TOKEN" loo_Rest = create oleobject // Use "Chilkat_9_5_0.Rest" for versions of Chilkat < 10.0.0 li_rc = loo_Rest.ConnectToNewObject("Chilkat.Rest") // Connect using TLS. li_BAutoReconnect = 1 li_Success = loo_Rest.Connect("www.googleapis.com",443,1,li_BAutoReconnect) // Provide the authentication credentials (i.e. the access token) loo_Rest.SetAuthGoogle(loo_GAuth) // Get 5 results per page for testing. (The default page size is 100, with a max of 1000. loo_Rest.AddQueryParam("pageSize","5") loo_Json = create oleobject // Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0 li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject") // Send the request for the 1st page. ls_JsonResponse = loo_Rest.FullRequestNoBody("GET","/drive/v3/files") li_PageNumber = 1 li_BContinueLoop = loo_Rest.LastMethodSuccess AND (loo_Rest.ResponseStatusCode = 200) do while li_BContinueLoop = 1 Write-Debug "---- Page " + string(li_PageNumber) + " ----" // Iterate over each file in the response and show the name, id, and mimeType. loo_Json.Load(ls_JsonResponse) // See the sample JSON response at the bottom of this example. li_NumFiles = loo_Json.SizeOfArray("files") i = 0 do while i < li_NumFiles loo_Json.I = i Write-Debug "name: " + loo_Json.StringOf("files[i].name") Write-Debug "id: " + loo_Json.StringOf("files[i].id") Write-Debug "mimeType: " + loo_Json.StringOf("files[i].mimeType") Write-Debug "-" i = i + 1 loop // Get the next page of files. // If the "nextPageToken" is present in the JSON response, then use it in the "pageToken" parameter // for the next request. If no "nextPageToken" was present, then this was the last page of files. ls_PageToken = loo_Json.StringOf("nextPageToken") li_BContinueLoop = 0 li_BHasMorePages = loo_Json.LastMethodSuccess if li_BHasMorePages = 1 then loo_Rest.ClearAllQueryParams() loo_Rest.AddQueryParam("pageSize","5") loo_Rest.AddQueryParam("pageToken",ls_PageToken) ls_JsonResponse = loo_Rest.FullRequestNoBody("GET","/drive/v3/files") li_BContinueLoop = loo_Rest.LastMethodSuccess AND (loo_Rest.ResponseStatusCode = 200) li_PageNumber = li_PageNumber + 1 end if loop if loo_Rest.LastMethodSuccess <> 1 then Write-Debug loo_Rest.LastErrorText destroy loo_GAuth destroy loo_Rest destroy loo_Json return end if // A successful response will have a status code equal to 200. if loo_Rest.ResponseStatusCode <> 200 then Write-Debug "response status code = " + string(loo_Rest.ResponseStatusCode) Write-Debug "response status text = " + loo_Rest.ResponseStatusText Write-Debug "response header: " + loo_Rest.ResponseHeader Write-Debug "response JSON: " + ls_JsonResponse destroy loo_GAuth destroy loo_Rest destroy loo_Json return end if // A successful JSON response looks like this: // { // "kind": "drive#fileList", // "files": [ // { // "kind": "drive#file", // "id": "0B53Q6OSTWYolenpjTEU4ekJlQUU", // "name": "test", // "mimeType": "application/vnd.google-apps.folder" // }, // { // "kind": "drive#file", // "id": "0B53Q6OSTWYolRm4ycjZtdXhRaEE", // "name": "starfish4.jpg", // "mimeType": "image/jpeg" // }, // { // "kind": "drive#file", // "id": "0B53Q6OSTWYolMWt2VzN0Qlo1UjA", // "name": "hamlet2.xml", // "mimeType": "text/xml" // }, // ... // { // "kind": "drive#file", // "id": "0B53Q6OSTWYolc3RhcnRlcl9maWxlX2Rhc2hlclYw", // "name": "Getting started", // "mimeType": "application/pdf" // } // ] // } destroy loo_GAuth destroy loo_Rest destroy loo_Json |
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