grant Type missing

simran5590 · ‎11-19-2015

After struggling almost for 3 weeks I am still at grant Type missing. I am creating a app in Swift want to access user steps and add user steps Please help.

func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {
        print("\(url)")
        
        var parameter = Dictionary<String, AnyObject>()
        var headers = Dictionary<String, String>()
       
        parameter["grant_type"] = "authorization_code"
        parameter["client_id"] = "MYCLIENTID"
        parameter["code"] = "\(url.query!)"
        
        print(parameter)
        
        
        do {
            let jsonData = try NSJSONSerialization.dataWithJSONObject(parameter, options: NSJSONWritingOptions(rawValue: 0))
            let jsonString = NSString(data&colon; jsonData, encoding: NSUTF8StringEncoding)! as String
            if let url = NSURL(string:"https://api.fitbit.com/oauth2/token") {
                let mutableRequest = NSMutableURLRequest.init(URL: url)
                mutableRequest.HTTPMethod = "POST"
                mutableRequest.setValue("Basic MyBASE64ECODEDTHING", forHTTPHeaderField: "Authorization")
                mutableRequest.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
                
                let session = NSURLSession.sharedSession()
                
                let task = session.uploadTaskWithRequest(mutableRequest, fromData&colon; jsonString.dataUsingEncoding(NSUTF8StringEncoding), completionHandler: uploadResponse)
                task.resume()
            } else {
                print("Unable to create NSURL")
            }
        } catch {
            
        }

 
    func uploadResponse(data&colon;NSData?, response: NSURLResponse?, error: NSError?) -> Void {
        guard error == nil else {
            print("Error near guard")
            return
        }
        let httpResponse = response as? NSHTTPURLResponse
        let status: Int = httpResponse!.statusCode
        
        if status != 200,
            let error = NSString(data&colon; data!, encoding: NSUTF8StringEncoding)
        {
            print("Error in JSON" + error.description)
            return
        }
    }

JeremiahFitbit · ‎11-20-2015

We cannot debug your code. Capture the HTTP request that is failing. Let us see the requests that you're making and the server's response.

simran5590 · ‎11-20-2015

Ok, I will do that and let you know but I have request for Fitbit developer, please improve the documentation of FitBit API. its pretty poor. Almost all API have examples in common programming languages Fitbit has none. OAuth is not easy for everyone. Specially for new developers. This statements"

Find an OAuth 2.0 library for your programming language and framework to create an authorization flow." in the Quick start guide doesn't help much.

simran5590 · ‎11-20-2015

this is the httpresponse ...

HTTPRESPONSE: <NSHTTPURLResponse: 0x7fd6d0c3de00> { URL: https://api.fitbit.com/oauth2/token } { status code: 400, headers {

"Cache-Control" = "no-cache, must-revalidate";

"Content-Encoding" = gzip;

"Content-Language" = "en-US";

"Content-Type" = "application/json;charset=UTF-8";

Date = "Sat, 21 Nov 2015 06:01:35 GMT";

Expires = "Thu, 01 Jan 1970 00:00:00 GMT";

Pragma = "no-cache";

Server = "cloudflare-nginx";

"Set-Cookie" = "JSESSIONID=6C4A88B0718274C10BB8AFF5A2888C64.fitbit1; Path=/; HttpOnly, fhttps=\"\"; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/";

Vary = "Accept-Encoding";

"cf-ray" = "248a2e4d27651201-SJC";

"x-frame-options" = SAMEORIGIN;

"x-ua-compatible" = "IE=edge,chrome=1";

} }

jmitchell38488 · ‎11-21-2015

What's the request??

From the documentation, the example of authorization is (in standard cURL format):

POST https://api.fitbit.com/oauth2/token
Authorization: Basic Y2xpZW50X2lkOmNsaWVudCBzZWNyZXQ=
Content-Type: application/x-www-form-urlencoded

client_id=22942C&grant_type=authorization_code&redirect_uri=http%3A%2F%2Fexample.com%2Fcallback&code=1234567890

What is the content of the 'Authorization' request header? You should be able to make a request, even as ajax, and capture the request headers through Firebug/Chrome, or even cURL the request on command line. Also, what is the query string? If the API returns the error message invalid/missing grant_type field, then it means that you are missing that in your code, or the variable isn't properly set.

The devs won't be able to do much if they don't know the exact error message you receive from the API, as well as the full request that you make. I know you don't like the documentation, but I do agree that it's a little on the light side for troubleshooting information (errors etc.) as well as lacking real implementation examples.

Edit: What the documentation doesn't tell you is that the authorization and refresh requests can be made with get as well as post.

JeremiahFitbit · ‎11-22-2015

@simran5590 wrote:

Ok, I will do that and let you know but I have request for Fitbit developer, please improve the documentation of FitBit API. its pretty poor. Almost all API have examples in common programming languages Fitbit has none. OAuth is not easy for everyone. Specially for new developers. This statements"

Find an OAuth 2.0 library for your programming language and framework to create an authorization flow." in the Quick start guide doesn't help much.

@simran5590: Thank you for the feedback. Given OAuth 2.0's ubiquity and our small team, we are focusing on supporting Fitbit API specific issues at this time. Nearly every language and application framework has an idiomatic way of making HTTP requests with OAuth 2.0. We will try to provide more examples in the future, but we will never be able to serve people as well as their preferred language's and framework's documentation.

simran5590 · ‎11-22-2015

@JeremiahFitbit I totally understand as a developer it might be hard for a small team to do it. Thanks for the response. Try to take help from the community as well. If you want I can try to provide you the example I used to OAuth with fibit in Swift you can modify it according to your standards and post in documentation examples. In future as I will get time I will do it in other languages also and provide you the github links and you can modify them also.

JeremiahFitbit · ‎11-23-2015

@jmitchell38488 wrote:

Edit: What the documentation doesn't tell you is that the authorization and refresh requests can be made with get as well as post.

@jmitchell38488: These requests are only valid as POST requests. Making a GET request will result in errors in the future.

MdSaleem · ‎11-27-2015

Can you help me, i get a HTTP request failing:

"Cache-Control" = "no-store, no-cache, must-revalidate";
"Content-Encoding" = gzip;
"Content-Language" = "en-IN";
"Content-Type" = "text/html;charset=UTF-8";
Date = "Fri, 27 Nov 2015 09:24:31 GMT";
Expires = "Thu, 01 Jan 1970 00:00:00 GMT";
Pragma = "no-cache";
Server = "cloudflare-nginx";
"Set-Cookie" = "fhttps=\"\"; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/, JSESSIONID=7D3D0C7DEACBC05F4F8D5C5CB318FB7D.fitbit1; Path=/; HttpOnly";
Vary = "Accept-Encoding";
"cf-ray" = "24bcc7c85cfc2ef3-DEL";
"x-frame-options" = SAMEORIGIN;
"x-ua-compatible" = "IE=edge,chrome=1";

MdSaleem · ‎11-27-2015

Please Explain Whats wrong with this Code:

- (IBAction)showToken:(id)sender {

NSString *kClientID = @"6da7a4053

@JeremiahFitbit wrote:
@jmitchell38488 wrote:

Edit: What the documentation doesn't tell you is that the authorization and refresh requests can be made with get as well as post.
@jmitchell38488: These requests are only valid as POST requests. Making a GET request will result in errors in the future.

**********";

NSString *kClientSecret = @"8e8ca8*************";

NSURL *baseURL = [NSURL URLWithString:@"https://api.fitbit.com/oauth/request_token"];

AFOAuth2Manager *OAuth2Manager =

[[AFOAuth2Manager alloc] initWithBaseURL:baseURL

clientID:kClientID

secret:kClientSecret];

//client_id=22942C&grant_type=authorization_code&redirect_uri=http%3A%2F%2Fexample.com%2Fcallback&code=1234567890

NSDictionary *params = @{@"authorization_code":@"password", @"mohd.saleem@rootinfosol.com" @"password":@"**********"};

[OAuth2Manager authenticateUsingOAuthWithURLString:@"/oauth/token"

parameters:params

success:^(AFOAuthCredential *credential) {

NSLog(@"Token: %@", credential.accessToken);

}

failure:^(NSError *error) {

NSLog(@"Error: %@", error);

NSLog(params);

}];

SunsetRunner · ‎11-27-2015

@MdSaleem wrote:

Can you help me, i get a HTTP request failing:

"Cache-Control" = "no-store, no-cache, must-revalidate";
"Content-Encoding" = gzip;
"Content-Language" = "en-IN";
"Content-Type" = "text/html;charset=UTF-8";
Date = "Fri, 27 Nov 2015 09:24:31 GMT";
Expires = "Thu, 01 Jan 1970 00:00:00 GMT";
Pragma = "no-cache";
Server = "cloudflare-nginx";
"Set-Cookie" = "fhttps=\"\"; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/, JSESSIONID=7D3D0C7DEACBC05F4F8D5C5CB318FB7D.fitbit1; Path=/; HttpOnly";
Vary = "Accept-Encoding";
"cf-ray" = "24bcc7c85cfc2ef3-DEL";
"x-frame-options" = SAMEORIGIN;
"x-ua-compatible" = "IE=edge,chrome=1";

Please provide the full HTTP response, the body usually indicates the error.

MdSaleem · ‎11-29-2015

2015-11-30 11:02:54.010 FitBit[690:14510] Error: Error Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: not found (404)" UserInfo={NSUnderlyingError=0x7f81a34451e0 {Error Domain=com.alamofire.error.serialization.response Code=-1016 "Request failed: unacceptable content-type: text/html" UserInfo={com.alamofire.serialization.response.error.response=<NSHTTPURLResponse: 0x7f81a34415b0> { URL: https://api.fitbit.com/oauth/token } { status code: 404, headers {

"Cache-Control" = "no-store, no-cache, must-revalidate";

"Content-Encoding" = gzip;

"Content-Language" = "en-IN";

"Content-Type" = "text/html;charset=UTF-8";

Date = "Mon, 30 Nov 2015 05:32:53 GMT";

Expires = "Thu, 01 Jan 1970 00:00:00 GMT";

Pragma = "no-cache";

Server = "cloudflare-nginx";

"Set-Cookie" = "fhttps=\"\"; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/, JSESSIONID=802CB2BFCE8F078EAF94FF90A5933B5E.fitbit1; Path=/; HttpOnly";

Vary = "Accept-Encoding";

"cf-ray" = "24d42c9c8bf12f11-DEL";

"x-frame-options" = SAMEORIGIN;

"x-ua-compatible" = "IE=edge,chrome=1";

} }, NSErrorFailingURLKey=https://api.fitbit.com/oauth/token, com.alamofire.serialization.response.error.data=<0d0a0d0a 0d0a0d0a 0d0a0d0a 0d0a0d0a 0d0a0d0a 0d0a0d0a

SunsetRunner · ‎11-30-2015

I don't see a response body in that. Can you verify?

jmitchell38488 · ‎11-30-2015

This is from my phone, so I'll be brief;

1 error is for incorrect content-type, it's text/html instead of application/json as described in the documentation.

1 error is for incorrect client id, which doesn't show up yet, bit if your request worked, the error for it would appear. The client id you need and make sure that you're forming a base64 hash of your client id:private key, and don't post any of those account details here for privacy reasons.

1 error is incorrect URL - 404. If you attempt that URL in the browser it fails. This is the correct URL: https://api.fitbit.com/oauth2/token

When using oauth 2, all authentication/authorization based URLs are /oauth2/ instead of /oauth/.

I don't know Objective C so I can't help you debug your application, but there are libraries available to use that you should use, they make it so much easier to implement. It looks like you have a number of issues, including generating the incorrect authorization code, content-type, api url...

I can't link on my phone but it's all covered in the documentation. Print out the entire oauth2/consent section and read it to understand. Don't take any shortcuts to jump ahead. It took me a bit to figure it out but I did because I didn't skip ahead. I even made my own php provider. Everything you need to get the requests working is in the documentation.

MdSaleem · ‎11-30-2015

Thanks for support. i will work on it after that lets see what happen.

thanks a lot Bro.

MdSaleem · ‎11-30-2015

After Modification it show this request error:

2015-12-01 13:04:30.111 FitBit[1195:51846] Error: Error Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: bad request (400)" UserInfo={com.alamofire.serialization.response.error.response=<NSHTTPURLResponse: 0x7fd559ccc290> { URL: https://api.fitbit.com/oauth2/token/oauth2/token } { status code: 400, headers {

"Cache-Control" = "no-cache, must-revalidate";

"Content-Language" = "en-IN";

"Content-Length" = 0;

"Content-Type" = "text/xml;charset=UTF-8";

Date = "Tue, 01 Dec 2015 07:34:30 GMT";

Expires = "Thu, 01 Jan 1970 00:00:00 GMT";

Pragma = "no-cache";

Server = "cloudflare-nginx";

"Set-Cookie" = "JSESSIONID=35826744598449DEBE95442AFB48BEC2.fitbit1; Path=/; HttpOnly, fhttps=\"\"; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/";

"cf-ray" = "24dd1c1f3fce2f23-DEL";

"x-frame-options" = SAMEORIGIN;

"x-ua-compatible" = "IE=edge,chrome=1";

} }, NSErrorFailingURLKey=https://api.fitbit.com/oauth2/token/oauth2/token, com.alamofire.serialization.response.error.data=<>, NSLocalizedDescription=Request failed: bad request (400)}

JeremiahFitbit · ‎12-01-2015

@MdSaleem: Please share the *body* of the response. That is the part that tells you what went wrong.

MdSaleem · ‎12-01-2015

{
"errors": [
{
"errorType": "invalid_request",
"message": "Authorization header required. Visit https://dev.fitbit.com/docs/oauth2 for more information on the Fitbit Web API authorization process."
}
],
"success": false
}

jmitchell38488 · ‎12-01-2015

So you're missing the authorization header. This is needed when authorizing with the api. http://stackoverflow.com/questions/26035674/how-to-set-http-header-for-for-http-in-objective-c That should help you out.

MdSaleem · ‎12-03-2015

Your Documentation is very poor for FitBit API. For request a token. Almost all API have examples in common programming languages

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grant Type missing

simran5590

JeremiahFitbit

simran5590

simran5590

jmitchell38488

JeremiahFitbit

simran5590

JeremiahFitbit

MdSaleem

MdSaleem

SunsetRunner

MdSaleem

SunsetRunner

jmitchell38488

MdSaleem

MdSaleem

JeremiahFitbit

MdSaleem

jmitchell38488

MdSaleem