Cannot use Create method with SODataEntity in iOS Native Apps connect to SMP 3.0 SP05

Question

Hi experts,
I am following these blogs:Mobile Application Development Platform for Developers - Native Apps. They are very helpful, thanks Kenichi.
But i have some error when i use Integration gateway.
First, i try method Read, it works perfectly. Then, i try to use method Create, and i meet an error. Here is the error :
Error Domain=NetworkDomain Code=4 "HTTP Response: 403 forbidden" UserInfo=0x7f86d2688040 {NSLocalizedDescription=HTTP Response: 403 forbidden}
I test CRUD method in REST client, and it runs without any errors. I think the difference between Create and Read method is "X-CSRF-Token": Fetch with Read and specific Token with Create. But i do not know how to supply or config "X-CSRF-Token" field when use SOData...
Thanks and Reagrads,
Sao Vu.

Answer 1

Hi Sao,
Is your problem solved?
If not, below code may be able to help you for creation using ODataStore:
MAFLogonRegistrationData *data = [[MyLogonHandler shared].logonManager registrationDataWithError:&error];
    NSString *baseURL = [NSString stringWithFormat:@"%@", data.applicationEndpointURL];
    //opening the store
    self.onlineStore = [[OnlineStore alloc] initWithURL:[NSURL URLWithString:baseURL]
                                httpConversationManager:[MyLogonHandler shared].conversationManager];
    [self.onlineStore openStoreWithCompletion:^(BOOL success) {
//Read request after the store is successfully opened
        SODataRequestParamSingleDefault* readRequest = [[SODataRequestParamSingleDefault alloc] initWithMode:SODataRequestModeRead resourcePath:@"CollectionName"];
        [self.onlineStore scheduleRequest:readRequest delegate:self];
        NSString *finishedSubscription = [NSString stringWithFormat:@"com.sap.sdk.request.delegate.finished.%@",  readRequest];
//Going for create once read request is success
        [[NSNotificationCenter defaultCenter] addObserverForName:finishedSubscription object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *note) {
//Creating request for posting the data
SODataRequestParamSingleDefault* insertRequest = [[SODataRequestParamSingleDefault alloc] initWithMode:SODataRequestModeCreate resourcePath:@"CollectionName"];
            insertRequest.payload = entityForCreation; //Assigning the payload
            [self.onlineStore scheduleCreateEntity:entityForCreation collectionPath:@"Collection
Name" delegate:self options:nil];
//Alternatively you can use [self.onlineStore scheduleRequest:insertRequest delegate:self]; also instead of scheduleCreateEntity
If you want to pass X-CSRF-Token with RequestBuilder, you can use the following code:
//Create request for getting the token
      id<Requesting> request = [RequestBuilder requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:endPoint_URL]]];
        /*Set user name */
        [request setUsername:[[NSUserDefaults standardUserDefaults] objectForKey:@"USERNAME"]];
        /*Set password */
        [request setPassword:[[NSUserDefaults standardUserDefaults] objectForKey:@"PASSWORD"]];
        /*Set the required request headers*/
        [request setRequestMethod:@"GET"];
        [odp_Request addRequestHeader:@"X-CSRF-Token" value:@"Fetch"];
        [odp_Request addRequestHeader:@"X-CSRF-Cookie" value:@"Fetch"];
        [request addRequestHeader:@"Content-Type" value:@"application/xml; charset=UTF-8"];
        [request addRequestHeader:@"X-SMP-APPCID" value:applicationConnectionID]];
        [request addRequestHeader:@"X-SUP-APPCID" value:applicationConnectionID]];
        /*Set the delegate to receive the response */
        [request setDelegate:self];
        /*Set the success listener */
        [request setDidFinishSelector:@selector(tokenSuccess:)];
        /*Set the failure listener */
        [request setDidFailSelector:@selector(tokenFailed:)];
        /*Invoke the startAsyncronous API to send the request from client to server asynchronously */
        [request startSynchronous];
//In the tokenSuccess method (- (void)tokenSuccess:(Request*)theRequest), you can use the following code to retrieve the token:
      token=[[theRequest responseHeaders]objectForKey:@"X-CSRF-TOKEN"];
       cookie=[[theRequest responseHeaders]objectForKey:@"SET-COOKIE"];
//Create the request for posting your content to the server
            NSString* requestUrls = [NSString stringWithFormat:@"%@SalesOrders%@", endPoint_URL,filterString];  
            postRequest = [RequestBuilder requestWithURL:[NSURL URLWithString:requestUrls]];
            //             odp_Request = [ODPRequest requestWithURL:[NSURL URLWithString:requestUrls]];
            //id<SDMRequesting> request = [SDMRequestBuilder requestWithURL:[NSURL URLWithString: requestUrls]];
            [postRequest setUsername:[[NSUserDefaults standardUserDefaults] objectForKey:@"USERNAME"]];
            [postRequest setPassword:[[NSUserDefaults standardUserDefaults] objectForKey:@"PASSWORD"]];
            [postRequest setDelegate:self];
            [postRequest setRequestMethod:@"POST"];
            [postRequest addRequestHeader:@"content-type" value:@"application/atom+xml;type=entry"];
            [postRequest addRequestHeader:@"X-SMP-APPCID" value:applicationConnectionID]]; //Assinging the applicationConnectionID value to the request
            [postRequest addRequestHeader:@"X-CSRF-Token" value:token]; //Assinging the token value to the request
            [postRequest addRequestHeader:@"Cookie" value:cookie]; //Assinging the cookie value to the request
            [postRequest appendPostData:[xml dataUsingEncoding:NSUTF8StringEncoding]]; //Appending the body of the request
            [postRequest setDidFailSelector:@selector(updaterequestFailed:)]; //Failure delegate method
            [postRequest setDidFinishSelector:@selector(updaterequestFinished:)];  //Success delegate method
            [postRequest setTimeOutSeconds:200]; //Timeout for request
            [postRequest startSynchronous];
Hope this will help you.
Regards,
Dhani