Fetch Facebook Mutual friends between me and another User

Question

i want to fetch Facebook Mutual friends in my ios App

this is my try to get mutual friends i call with this Link

[NSString stringWithFormat:@\"me/mutua         


        

Answer 1

Yes, quite easy solution i have for you.

NSString *myFriendId = [NSString stringWithFormat:@"/%@",#YourFriendId#];


    NSString *hashedAccessToken = [self hmac:accessToken withKey:kAPP_SECRETE];
    NSDictionary *params = @{
                             @"fields" : @"context.fields(mutual_friends)",
                             @"appsecret_proof" : hashedAccessToken,
                             @"access_token" : accessToken
                             };


    /* make the API call */
    [FBRequestConnection startWithGraphPath:myFriendId parameters:params  HTTPMethod:@"GET" completionHandler:^
     (
      FBRequestConnection *connection, id result, NSError *error
      ){//Handle Respons;}];

And here is the hmac function (Add #import )

//SHA256 HASHMAC
- (NSString *)hmac:(NSString *)access_token withKey:(NSString *)app_secret
{
    const char *cKey  = [app_secret cStringUsingEncoding:NSASCIIStringEncoding];
    const char *cData = [access_token cStringUsingEncoding:NSASCIIStringEncoding];
    unsigned char cHMAC[CC_SHA256_DIGEST_LENGTH];
    CCHmac(kCCHmacAlgSHA256, cKey, strlen(cKey), cData, strlen(cData), cHMAC);
    NSData *HMACData = [NSData dataWithBytes:cHMAC length:sizeof(cHMAC)];
    const unsigned char *buffer = (const unsigned char *)[HMACData bytes];
    NSMutableString *HMAC = [NSMutableString stringWithCapacity:HMACData.length * 2];
    for (int i = 0; i < HMACData.length; ++i){
        [HMAC appendFormat:@"%02x", buffer[i]];
    }
    return HMAC;
}