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(Delphi DLL) Xero Upload File (Files API)Demonstrates how to upload a file to a Xero folder. Note: This example requires Chilkat v9.5.0.64 or greater.
uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, StringBuilder, Rest, BinData, JsonObject; ... procedure TForm1.Button1Click(Sender: TObject); var rest: HCkRest; success: Boolean; folderID: PWideChar; filename: PWideChar; sbPath: HCkStringBuilder; numReplaced: Integer; jpgData: HCkBinData; jpgDataFromWeb: HCkBinData; http: HCkHttp; responseJson: PWideChar; json: HCkJsonObject; begin // Note: Requires Chilkat v9.5.0.64 or greater. // This requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. rest := CkRest_Create(); // Before sending REST API calls, the REST object needs to be // initialized for OAuth1. // See Xero 2-Legged OAuth1 Setup for sample code. // Assuming the REST object's OAuth1 authenticator is setup, and the initial // connection was made, we may now send REST HTTP requests.. // -------------------------------------------------------------- // This example will upload a file to a folder using the Xero FILES API folderID := '0ffca059-f2f1-4271-8de9-4b87c8c2c638'; // This JPG image can be downloaded from https://www.chilkatsoft.com/syncedImages/penguins.jpg filename := 'penguins.jpg'; sbPath := CkStringBuilder_Create(); CkStringBuilder_Append(sbPath,'/files.xro/1.0/Files/{FolderId}'); numReplaced := CkStringBuilder_Replace(sbPath,'{FolderId}',folderID); CkRest_AddHeader(rest,'Content-Type','image/jpeg'); // Load the JPG image from a file. jpgData := CkBinData_Create(); success := CkBinData_LoadFile(jpgData,'qa_data/jpg/penguins.jpg'); // We could alternatively get it from a URL like this: jpgDataFromWeb := CkBinData_Create(); http := CkHttp_Create(); success := CkHttp_QuickGetBd(http,'https://www.chilkatsoft.com/syncedImages/penguins.jpg',jpgDataFromWeb); if (success <> True) then begin Memo1.Lines.Add(CkHttp__lastErrorText(http)); Exit; end; // // Put the file data in the 1st sub-part in the multipart/form-data request we'll be sending. CkRest_putPartSelector(rest,'1'); CkRest_SetMultipartBodyBd(rest,jpgData); // Set request headers in the 1st subpart (as indicated by the PartSelector) CkRest_AddHeader(rest,'Content-Type','image/jpeg'); CkRest_AddHeader(rest,'Content-Disposition','multipart/form-data; name=Xero; filename=penguins.jpg'); // Restore the PartSelector to an empty string. CkRest_putPartSelector(rest,''); CkRest_AddHeader(rest,'Content-Type','multipart/form-data'); // Upload with a multipart/form-data POST responseJson := CkRest__fullRequestMultipart(rest,'POST',CkStringBuilder__getAsString(sbPath)); if (CkRest_getLastMethodSuccess(rest) <> True) then begin Memo1.Lines.Add(CkRest__lastErrorText(rest)); Exit; end; json := CkJsonObject_Create(); CkJsonObject_Load(json,responseJson); CkJsonObject_putEmitCompact(json,False); // A 201 response is expected for actual success. // The Xero documentation doesn't explicitly state it, but that's what we've found in testing. // To be safe, we'll check for either 200 or 201. if ((CkRest_getResponseStatusCode(rest) <> 200) and (CkRest_getResponseStatusCode(rest) <> 201)) then begin Memo1.Lines.Add(CkJsonObject__emit(json)); Exit; end; // Examine the JSON response Memo1.Lines.Add(CkJsonObject__emit(json)); // A successful response looks like this: // { // "Name": "penguins.jpg", // "MimeType": "image/jpeg", // "Size": 777835, // "CreatedDateUtc": "2016-11-12T15:31:53.4230000", // "UpdatedDateUtc": "2016-11-12T15:31:53.4230000", // "User": { // "Name": "admin@chilkatsoft.com", // "FirstName": "Matthew", // "LastName": "Smith", // "FullName": "Matthew Smith", // "Id": "c362fe42-cb12-461f-b84a-c281c1a74841" // }, // "FolderId": "0ffca059-f2f1-4271-8de9-4b87c8c2c638", // "Id": "f042e9a3-a31d-4595-b8b3-6030ea6084bb" // } CkRest_Dispose(rest); CkStringBuilder_Dispose(sbPath); CkBinData_Dispose(jpgData); CkBinData_Dispose(jpgDataFromWeb); CkHttp_Dispose(http); CkJsonObject_Dispose(json); end; |
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