HTTPリクエストを使用してサーバーにPDFファイルを保存します。

Question

iPadアプリを開発しています。これで私は正常にイメージをPDFファイルに変換したタスクがあります。

これで、変換したPDFファイルをサーバー側にHTTPリクエストで保存する必要があります。

HTTPリクエストを送信するとエラーが発生する正しい形式でないため、データを読み取れませんでした。

どこが間違っていますか？

私のコード

// url path to php file 
    let url = URL(string: "\(Config.path)/uploadAva.php")! 

    // declare request to this file 
    var request = URLRequest(url: url) 

    // declare method of passign inf to this file 
    request.httpMethod = "POST" 

    // param to be sent in body of request 
    let param = ["AppId":Config.AppID , "uuid":Config.uuid , "Id" : userID] 

    // body 
    let boundary = "Boundary-\(UUID().uuidString)" 
    request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type") 

     // ... body 
    request.httpBody = createBody(param, filePathKey: "file", imageDataKey: pdfdata as Data, boundary: boundary) 

    // launc session 
    URLSession.shared.dataTask(with: request) { data, response, error in 

     // get main queue to communicate back to user 
     DispatchQueue.main.async(execute: { 

      if error == nil { 

       do { 

        let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary 
        print(json) 


       } catch { 

        //Here I get error as The data couldn’t be read because it isn’t in the correct format. 

       } 


      } else { 

      } 


     }) 

     }.resume() 


// custom body of HTTP request to upload pdf file 
func createBody(_ parameters: [String: String]?, filePathKey: String?, imageDataKey: Data, boundary: String) -> Data { 

    let body = NSMutableData() 

    if parameters != nil { 
     for (key, value) in parameters! { 
      body.appendString("--\(boundary)\r\n") 
      body.appendString("Content-Disposition: attachment; name=\"\(key)\"\r\n\r\n") 
      body.appendString("\(value)\r\n") 
     } 
    } 

    let filename = "ava.pdf" 

    let mimetype = "application/pdf" 

    body.appendString("--\(boundary)\r\n") 
    body.appendString("Content-Type: application/pdf;name=\"ava10.pdf\"\r\n") 
    body.appendString("Content-Disposition:attachment;filename=\"ava10.pdf\"\r\n") 

    body.append(imageDataKey) 
    body.appendString("\r\n") 

    body.appendString("--\(boundary)--\r\n") 

    return body as Data 

} 

Answer 1

NSData *data = FILE DATA; 


    NSDictionary *dictionary = FILE_SERVER_ATTRIBUTE_DICT 


    //Create multipart form request data. 
    NSDate *dt = [[NSDate alloc] initWithTimeIntervalSinceNow:0]; 
    NSInteger timestamp = [dt timeIntervalSince1970]; 

    NSString *HTTPRequestBodyBoundary = [NSString stringWithFormat:@"BOUNDARY-%ld-%@", (long)timestamp, [[NSProcessInfo processInfo] globallyUniqueString]]; // You could calculate a better boundary here. 
    multipartBoundary = HTTPRequestBodyBoundary; 
    // Add HTTP Body 
    NSMutableData *HTTPRequestBody = [NSMutableData data]; 
    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"--%@\r\n", HTTPRequestBodyBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    // Add Key/Values to the Body 
    NSEnumerator *enumerator = [dictionary keyEnumerator]; 
    NSString *key = nil; 
    NSMutableArray *HTTPRequestBodyParts = [NSMutableArray array]; 

    // Collecting HTTP Request body parts 
    while ((key = [enumerator nextObject])) 
    { 
     NSMutableData *someData = [[NSMutableData alloc] init]; 
     [someData appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", key] dataUsingEncoding:NSUTF8StringEncoding]]; 
     [someData appendData:[[NSString stringWithFormat:@"%@", [dictionary objectForKey:key]] dataUsingEncoding:NSUTF8StringEncoding]]; 
     [HTTPRequestBodyParts addObject:someData]; 
    } 

    NSMutableData *resultingData = [NSMutableData data]; 
    NSUInteger count = [HTTPRequestBodyParts count]; 

    NSMutableString *bodyParts = [NSMutableString string]; 

    [HTTPRequestBodyParts enumerateObjectsUsingBlock:^(NSData *obj, NSUInteger idx, BOOL *stop) { 
     [resultingData appendData:obj]; 
     [bodyParts appendString:[[NSString alloc] initWithData:obj encoding:NSUTF8StringEncoding]]; 
     if (idx != count - 1) 
     { 
      [resultingData appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", HTTPRequestBodyBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
      [bodyParts appendString:[NSString stringWithFormat:@"%@", [NSString stringWithFormat:@"\r\n--%@\r\n", HTTPRequestBodyBoundary]]]; 
     } 
    }]; 


    [HTTPRequestBody appendData:resultingData]; 
    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", HTTPRequestBodyBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=%@; filename=%@\r\n", @"uploadFile",request.fileNameWithExtension] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"Content-Type: %@\r\n\r\n",request.mimeTypeString] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [HTTPRequestBody appendData:data]; /// file data 


    // Add the closing -- to the POST Form 
    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n", HTTPRequestBodyBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    multipartData = HTTPRequestBody; 

//// server connection 
    mutableResponseData = [NSMutableData new]; 
    webServiceURL = [SharedUtils trimString:webServiceURL]; 
    urlRequest = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:webServiceURL] cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:httpTimeOut]; 

    urlRequest.URL = [NSURL URLWithString:webServiceURL]; 
    [urlRequest setTimeoutInterval:httpTimeOut]; 
    [urlRequest setHTTPMethod:[self nameForHTTPMethod:httpMethod]]; 

    [urlRequest setHTTPBody:multipartData]; 
    [urlRequest addValue:[NSString stringWithFormat:@"%d", (int)[multipartData length]] forHTTPHeaderField:@"Content-Length"]; 
    [urlRequest addValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@", multipartBoundary] forHTTPHeaderField:@"Content-Type"]; 


//// add auth header If applicable 

NSString *authStr = [NSString stringWithFormat:@"%@:%@", USERNAME, PASSWORD]; 
    NSData *authData = [authStr dataUsingEncoding:NSASCIIStringEncoding]; 
    NSString *authValue = [NSString stringWithFormat:@"Basic %@", [authData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithCarriageReturn]]; 
    [urlRequest setValue:authValue forHTTPHeaderField:@"Authorization"]; 

    NSString *appVersion = [SharedUtils applicationVersionNumber]; 
    NSString *buildVersion = [SharedUtils applicationBuildNumber]; 
    [urlRequest setValue:[NSString stringWithFormat:@"%@-%@",[SharedUtils validateStringValue:appVersion], [SharedUtils validateStringValue:buildVersion]] forHTTPHeaderField:@"AppVersion"]; 

REST接続し、私はあなたが説明してくださいすることができ、あなたのロジックを理解していなかった

Answer 2

Please follow below flow: 



////// FILE BINARY DATA 

NSData *data = FILE DATA; 


////This will contain properties for server requirement & file properties 

    NSDictionary *dictionary = FILE_SERVER_ATTRIBUTE_DICT 


////Create Boundary 
    NSDate *dt = [[NSDate alloc] initWithTimeIntervalSinceNow:0]; 
    NSInteger timestamp = [dt timeIntervalSince1970]; 

    NSString *HTTPRequestBodyBoundary = [NSString stringWithFormat:@"BOUNDARY-%ld-%@", (long)timestamp, [[NSProcessInfo processInfo] globallyUniqueString]]; // You could calculate a better boundary here. 
    multipartBoundary = HTTPRequestBodyBoundary; 


////HTTP BODY for request start 

    NSMutableData *HTTPRequestBody = [NSMutableData data]; 

////Add Boundry to data : Opening Boundary 
    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"--%@\r\n", HTTPRequestBodyBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
    // Add Key/Values to the Body 
    NSEnumerator *enumerator = [dictionary keyEnumerator]; 
    NSString *key = nil; 


//// Collecting HTTP Request body parts from File and server properties 

    NSMutableArray *HTTPRequestBodyParts = [NSMutableArray array]; 

    while ((key = [enumerator nextObject])) 
    { 
     NSMutableData *someData = [[NSMutableData alloc] init]; 
     [someData appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", key] dataUsingEncoding:NSUTF8StringEncoding]]; 
     [someData appendData:[[NSString stringWithFormat:@"%@", [dictionary objectForKey:key]] dataUsingEncoding:NSUTF8StringEncoding]]; 
     [HTTPRequestBodyParts addObject:someData]; 
    } 

//// Adding boundaries for all components in collected Above array 

    NSMutableData *resultingData = [NSMutableData data]; 
    NSUInteger count = [HTTPRequestBodyParts count]; 


    [HTTPRequestBodyParts enumerateObjectsUsingBlock:^(NSData *obj, NSUInteger idx, BOOL *stop) { 
////Append data 
     [resultingData appendData:obj]; 
     if (idx != count - 1) 
     { 
////Append Boundary to Data 
      [resultingData appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", HTTPRequestBodyBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
     } 
    }]; 


////Add data to HTTP Body data 
    [HTTPRequestBody appendData:resultingData]; 

////Append Boundary to Data HTTP Body data 
    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", HTTPRequestBodyBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 

////Append FileName to HTTP Body data 

    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=%@; filename=%@\r\n", @"uploadFile",request.fileNameWithExtension] dataUsingEncoding:NSUTF8StringEncoding]]; 

////Append Content Type to HTTP Body data 

    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"Content-Type: %@\r\n\r\n",request.mimeTypeString] dataUsingEncoding:NSUTF8StringEncoding]]; 

////Append File Data to HTTP Body data 

    [HTTPRequestBody appendData:data]; /// file data 



////Append Boundary to Data HTTP Body data : Closing Boundary 
    [HTTPRequestBody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n", HTTPRequestBodyBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; 


//Above is ready for HTTP Body of URLRequest 

    multipartData = HTTPRequestBody; 

//// Create URLRequest 

    mutableResponseData = [NSMutableData new]; 
    webServiceURL = [SharedUtils trimString:webServiceURL]; 
    urlRequest = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:webServiceURL] cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:httpTimeOut]; 

    [urlRequest setHTTPMethod:@"POST"]; 

    [urlRequest setHTTPBody:multipartData]; 
    [urlRequest addValue:[NSString stringWithFormat:@"%d", (int)[multipartData length]] forHTTPHeaderField:@"Content-Length"]; 
    [urlRequest addValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@", multipartBoundary] forHTTPHeaderField:@"Content-Type"]; 


//// add auth header If applicable 

NSString *authStr = [NSString stringWithFormat:@"%@:%@", USERNAME, PASSWORD]; 
    NSData *authData = [authStr dataUsingEncoding:NSASCIIStringEncoding]; 
    NSString *authValue = [NSString stringWithFormat:@"Basic %@", [authData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithCarriageReturn]]; 
    [urlRequest setValue:authValue forHTTPHeaderField:@"Authorization"]; 

    NSString *appVersion = [SharedUtils applicationVersionNumber]; 
    NSString *buildVersion = [SharedUtils applicationBuildNumber]; 
    [urlRequest setValue:[NSString stringWithFormat:@"%@-%@",[SharedUtils validateStringValue:appVersion], [SharedUtils validateStringValue:buildVersion]] forHTTPHeaderField:@"AppVersion"];