将图像上传到 SAP OData 服务的问题 - Put 方法

Question

I have implemented SAPUI5 signature pad and sending image(signature content) to SAP. My issue is passing signature pad image data to SAP using OData.request Put method.

Step 1: I am able to get signature pad image data(content) and attached is copy of content looks like

"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/2wBDAQMDAwQDBAgEBAgQCwkLEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBD/wAARCABkAlgDASIAAhEBAxEB

Step 2: Sending Image data to SAP using OData.request put method. In SAP /IWBEP/IF_MGW_APPL_SRV_RUNTIME~UPDATE_STREAM class method I am only receiving IS_MEDIA_RESOURCE-mime_type I am not able to get IS_MEDIA_RESOURCE-value. Below is my OData call logic:

 var oModel = this.getView().getModel(); oModel.setUseBatch(false); var oData = {}; oData.Belnr = "4567891238"; oData.DocType = "ZLIEF"; oData.Role = "LKW"; var dataURL = this.byId("pressDialog").getContent()[2].getItems()[1]._getCanvasAsPicture("image/jpeg"); var base64string = dataURL.split(",")[1]; var serviceUrl = "/DigitalSignatureSet?(Belnr='" + oData.Belnr + "',DocType='" + oData.DocType + "',Role='" + oData.Role + "')/$value"; oModel.update(serviceUrl, oData, { method: "PUT", headers: { "X-Requested-With": "XMLHttpRequest", "Content-Type": "image/jpeg", "DataServiceVersion": "2.0", "X-CSRF-Token": this.getView().getModel().getSecurityToken() }, data: base64string }); oModel.submitChanges(mParameters);

Regards Sebastian

Answer 1

Have a look at this thread . It gives a pretty good explanation of what you need to do to upload an image by means of a data stream in Sap Netweaver Gateway.

Cheers, SePo

Answer 2

Not sure which odata model are you using but for v2. There is no data property to submit any data. This method is for odata not binary data.

-> see

use a upload control. For example sap.m.UploadCollection like shown in this example: https://sapui5.hana.ondemand.com/#/entity/sap.m.UploadCollection/sample/sap.m.sample.UploadCollectionVersioning

Update: Binary date means direct binaray data. It it possible to wrappe Binaray around an odata(json) representation. But this has major drawbacks. Use streams if possible.

update("/MyAttachments", {"bnarayDataAsAODataProperty": "0101010100101"})