Convert NSData into Base 64 string for SOAP services

Currently i was working on a SOAP request and wanted to send a file on the server, i looked at the SOAP request and saw that one of the parameter in the SOAP service accepted base64 as parameter, so i wanted to convert the NSData into base64 so after a long time spending debugging and breaking heads i finally surfed up and came saw a solution on stackoverflow  which i would like to share with you 

+ (NSString*)base64forData:(NSData*)theData {

    const uint8_t* input = (const uint8_t*)[theData bytes];

    NSInteger length = [theData length];

    

    static char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

    

    NSMutableData* data = [NSMutableData dataWithLength:((length + 2) / 3) * 4];

    uint8_t* output = (uint8_t*)data.mutableBytes;

    

    NSInteger i;

    for (i=0; i < length; i += 3) {

        NSInteger value = 0;

        NSInteger j;

        for (j = i; j < (i + 3); j++) {

            value <<= 8;

            

            if (j < length) {

                value |= (0xFF & input[j]);

            }

        }

        

        NSInteger theIndex = (i / 3) * 4;

        output[theIndex + 0] =                    table[(value >> 18) & 0x3F];

        output[theIndex + 1] =                    table[(value >> 12) & 0x3F];

        output[theIndex + 2] = (i + 1) < length ? table[(value >> 6)  & 0x3F] : '=';

        output[theIndex + 3] = (i + 2) < length ? table[(value >> 0)  & 0x3F] : '=';

    }

    

    return [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];

}

The above function will convert the NSData into base64 string which you can send in your SOAP service as a parameter. And if you are finding it difficult to work with SOAP services then here's a link to my old tutorial on SOAP service.

Happy iCoding and have a great day.

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