通過iOS將附件發送到Salesforce Native Rest SDK

Question

我需要通過我的iPhone應用程序將圖像發送到Salesforce。我已經嘗試過將圖像轉換為圖像->字節-> base64編碼，然后存儲sfdc（Rich數據字段），這是完美的方法，但是我需要另存為image。這是下面給出的我的代碼（不起作用）指導我如何實現

   NSData *imageData = UIImagePNGRepresentation(imageView.image);
    NSString *boundary = @"---------------------------14737809831466499882746641449";

   SFRestRequest *request = [[SFRestRequest alloc] init];
    [request setDelegate:self];
    [request setEndpoint:kSFDefaultRestEndpoint];
    [request setMethod:SFRestMethodPOST];
    NSMutableData *body = [NSMutableData data];
    [body appendData:[[NSString stringWithFormat:@"rn--%@rn",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithString:[NSString stringWithFormat:@"Content- Disposition: form-data; name=\"entity_document\"; filename=\"%@\"\r\n",@"Test.png"]] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[@"Content-Type:  multipart/form-data\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithString:[NSString stringWithFormat:@"Description :\"%s\"\r\n","Marketing brochure for Q1 2011"]] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithString:[NSString stringWithFormat:@"Keywords :\"%s\"\r\n","marketing,sales,update"]] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithString:[NSString stringWithFormat:@"FolderId :\"%s\"\r\n","005D0000001GiU7"]] dataUsingEncoding:NSUTF8StringEncoding]];
     [body appendData:[[NSString stringWithString:[NSString stringWithFormat:@"Name :\"%s\"\r\n","Marketing Brochure Q1"]] dataUsingEncoding:NSUTF8StringEncoding]];


    [body appendData:[NSData dataWithData:imageData]];
    [body appendData:[[NSString stringWithFormat:@"rn--%@--rn",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
     NSString *attbody = [NSString stringWithFormat:@"{\"body\" : {\"Name\" :[{ \"type\" : \"image/jpeg\", \"image\" : \"%@\"}] } }",body];

    [request setPath:[NSString stringWithFormat:@"/v23.0/sobjects/Document/"]];
    [request setQueryParams:(NSDictionary *)[SFJsonUtils objectFromJSONString:attbody]];
    [[SFRestAPI sharedInstance] send:request delegate:self];

是否有處理我的請求的任何類（Apex）？

Answer 1

NSData * myData = [[NSData alloc] init]; //使用文件內容初始化

NSString *b64 = [myData base64EncodedString];

NSDictionary *fields = @{
                         @"Name": @"Document Name.ext",
                         @"Body": b64,
                         @"ParentId": recordId
                         };
attachmentRequest = [[SFRestAPI sharedInstance] requestForCreateWithObjectType:@"Attachment" fields:fields];

[[SFRestAPI sharedInstance] sendRESTRequest:attachmentRequest failBlock:^(NSError *e) {
    NSLog(@"Error");
} completeBlock:^(id dict){
    NSLog(@"Uploaded");
}];

Answer 2

如果您只想將二進制數據上傳到附件和/或文檔，則根本不需要編寫Apex類，那么您應該能夠通過REST API進行所有操作。

鏈接的博客文章中顯示的Apex類僅用於創建自定義Web服務。 如果您選擇可以走這條路，但是對於您要實現的目標絕對不是必需的。

Answer 3

我創建了apex rest類來接收二進制數據，然后將其保存到SFDC（圖像保存在Documents中）。以下是我所參考的教程。

http://blogs.developerforce.com/developer-relations/2011/09/using-binary-data-with-rest.html

這也是教程如何通過我的ios訪問apex Web服務。

http://techblog.appirio.com/2013/07/rest-with-apex-service-in-native-ios.html

Answer 4

為了使View功能適用於Salesforce Admin GUI中附件中的圖像，您還需要ContentType字段：

UIImage *testImg = [UIImage imageNamed:@"someImageName"];
NSData *testImgData = UIImagePNGRepresentation(testImg);
NSString *b64 = [testImgData base64Encode]; // base64Encode declared in NSData+SFAdditions.h

NSDictionary *fields = @{
                         @"Name": @"someImage.png",
                         @"Body": b64,
                         @"ParentId": @"00Q50000016TuGIEA0", // of course put your Attachment Id here instead of mine
                         @"ContentType": @"image/png"
                         };
SFRestRequest *attachmentRequest = [[SFRestAPI sharedInstance] requestForCreateWithObjectType:@"Attachment" fields:fields];
[[SFRestAPI sharedInstance] send:attachmentRequest delegate:self];