Use post request to receive LinkedIn user profile information in iOS - ios

Question

I am looking for a way to retrieve the profile information of a LinkedIn user by making a post request, I have read these two LinkedIn pages but it doesn't seem to explain much, or I couldn't understand much of it:
REST API LinkedIn
basic profile informations
I have seen these example on stackoverflow but I didn't understood to much:
http://api.linkedin.com/v1/people/~:(id,first-name,last-name,maiden-name,email-address,formatted-name,phonetic-last-name,location:(country:(code)),industry,distance,current-status,current-share,network,skills,phone-numbers,date-of-birth,main-address,positions:(title),educations:(school-name,field-of-study,start-date,end-date,degree,activities))
I am only interested to retrieve the skills section the one that on the website appears as so:

Answer 1

There's a fantastic library for LinkedIn-iOS integration by Kirsten Jones, you can use that to make calls to the LinkedIn API. You need an access token to make calls.
https://github.com/PrincessPolymath/LinkedIn-OAuth-Sample-Client
Make calls like this:
NSURL *url = [NSURL URLWithString:#"http://api.linkedin.com/v1/people/~:(id,first-name,last-name,maiden-name,formatted-name,phonetic-last-name,location:(country:(code)),industry,distance,current-status,current-share,network,skills,phone-numbers,date-of-birth,main-address,positions:(title),educations:(school-name,field-of-study,start-date,end-date,degree,activities))"]];
OAMutableURLRequest *request =
[[OAMutableURLRequest alloc] initWithURL:url
consumer:oAuthLoginView.consumer
token:oAuthLoginView.accessToken
callback:nil
signatureProvider:nil];
[request setValue:#"json" forHTTPHeaderField:#"x-li-format"];
OADataFetcher *fetcher = [[OADataFetcher alloc] init];
[fetcher fetchDataWithRequest:request
delegate:self
didFinishSelector:#selector(profileApiCallResult:didFinish:)
didFailSelector:#selector(profileApiCallResult:didFail:)];
- (void)profileApiCallResult:(OAServiceTicket *)ticket didFinish:(NSData *)data
{
NSString *responseBody = [[NSString alloc] initWithData:data
encoding:NSUTF8StringEncoding];
NSDictionary *profile = [responseBody objectFromJSONString];
if ( profile )
{
name.text = [[NSString alloc] initWithFormat:#"%# %#",
[profile objectForKey:#"firstName"], [profile objectForKey:#"lastName"]];
headline.text = [profile objectForKey:#"headline"];
.....and get skills and other user details
}
}

Answer 2

Use tool:https://apigee.com/console/linkedin
API to get the list of Skills:
https://api.linkedin.com/v1/people/~:(id,num-connections,skills)?format=json
I tried it in the Console tool and able to fetch the skills for my profile. I think the individual skill ID with above request should help you to get further information. Try it out.

Answer 3

If anyone is reading this answer, the LinkedIn API has limited access as of May 2015. You will need to apply to their Apply with LinkedIn program to access full profile fields including skills.
https://developer.linkedin.com/docs/fields

Answer 4

I have fair amount of experience working with the linkedIn API. It's been a little while, but hopefully this will set you on the right track.
To get profile information from a linked in user who is one of your connections you need a format like follows:
NSString *theRequest = [NSString stringWithFormat:#"https://api.linkedin.com/v1/people/id=abc123:(first-name,last-name,picture-url,location:(name))?oauth2_access_token=%#&format=json", accessToken];
This request will return the first name, last name, profile picture url, and location of the user with the id specified.
You can see a list of field types you can request by checking out linkedIn's documentation on their profile field descriptions here:
https://developer.linkedin.com/docs/fields
If you're wondering how to get the id of the user whose profile information you want request in the first place, you can make request for some basic info (including ids) of all your connections like this:
NSString *basicConnectionInfo = [NSString stringWithFormat:#"https://api.linkedin.com/v1/people/~/connections:(id,first-name,last-name)?oauth2_access_token=%#&format=json", accessToken];
This request will give you the id, first name, and last name of all of your connections. After you've gotten the id of the person you want, you can make a request using the user's id (as shown in the first example).
Now for the slightly unfortunately news... If you followed the link provided above, you'll notice that the skills field is part of the "Member profile fields available to Apply with LinkedIn developers". I'm assuming you'll have to follow this link they provided: https://developer.linkedin.com/docs/apply-with-linkedin in order to access the skills member profile field.
I have not applied with LinkedIn. So, I haven't tested a call to the skills field. But, I'm guessing it'll be similar to the examples I've shown you. Hope this helps!