Geek Answers Handbook

Using ASIHTTPRequest for nested POST parameters using NSDictionary

Trying to post nested parameter information to rails application and have some problems.

#pragma mark - Begin Network Operations
- (void)beginNetworkOperation {
    NSURL *requestURL = [NSURL URLWithString:[self retrieveURL]];
    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:requestURL];

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0
    [request setShouldContinueWhenAppEntersBackground:YES];
#endif

    [request setRequestMethod:@"PUT"];

    [request addRequestHeader:@"Content-Type" value:@"application/json"];

    [request addPostValue:strClientId forKey:@"client_id"];
    [request addPostValue:strAccessToken forKey:@"access_token"];

    NSDictionary *assetDictionary = [NSDictionary dictionaryWithObject:self.tags forKey:@"tags"];
    [request addPostValue:assetDictionary forKey:@"asset"];

    [request setDelegate:self];
    [request setDidFinishSelector:@selector(requestFinished:)];
    [request setDidFailSelector:@selector(requestFailed:)];
    [request startSynchronous];
}

self.tags is just an NSString with values ​​separated by commas, however, as soon as you arrive at the rails server, the tag parameter cannot be read (params [: asset] [: tags]).

+5
source share
2 answers

Try passing the dictionary as a JSON string, not a dictionary object.

You can do this using the JOSON iOS5 library, or this one for greater compatibility:

https://github.com/stig/json-framework

appendPostData, , (addRequestHeader) addPostValue . :

ASIFormDataRequest *request;
[request addRequestHeader:@"Content-Type" value:@"application/json"];
[request appendPostData:[[SBJsonWriter new] dataWithObject:myDictionaryToPassAsAnArgument]];

appendPostData, addPostValue. .

+2

JSONKit iOS.

[request addRequestHeader:@"Content-Type" value:@"application/json"];

NSMutableDictionary *requestDict = [[NSMutableDictionary alloc] init];
[requestDict setObject:@"iSteve" forKey:@"UserId"];
[requestDict setObject:@"1" forKey:@"CompanyCode"];
[requestDict setObject:@"IN" forKey:@"LineOfBusiness"];
[requestDict setObject:@"M" forKey:@"LineOfBusinessClassification"];
[requestDict setObject:pricingVariablesListString forKey:@"CarQuoteString"];
[request appendPostData:[requestDict JSONData]];
+2

More articles:


All Articles