Uber Invalid OAuth 2.0 credentials provided Uber Authentication In ios Swift

Question

I\'m implementing the Uber\'s Request Endpoint in my iOS (Swift) App. The Request API/Endpoint requires the user authentication with the app, here is the doc.

For th

Answer 1

Finally I have done it :)

I changed the method like below and it Worked

func callRequestAPI(url:String){

    var configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
    var session = NSURLSession(configuration: configuration)

    let params:[String: AnyObject] = [
        "product_id" : selectedUberProductId,
        "start_latitude" : start_lat,
        "start_longitude" : start_lng,
        "end_latitude" : end_lat,
        "end_longitude" : end_lng]



    let request = appDelegate.oauth.request(forURL: NSURL(string:url)!)
    request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
    request.HTTPMethod = "POST"
    var err: NSError?
    request.HTTPBody = NSJSONSerialization.dataWithJSONObject(params, options: NSJSONWritingOptions.allZeros, error: &err)

    let task = session.dataTaskWithRequest(request) {
        data, response, error in

        if let httpResponse = response as? NSHTTPURLResponse {
            if httpResponse.statusCode != 202 {
                println("response was not 202: \(response)")

                return
            }
        }
        if (error != nil) {
            println("error submitting request: \(error)")
            return
        }

        // handle the data of the successful response here
        var result = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.allZeros, error: nil) as! NSDictionary


        println(result)

        if let request_id: String = result["request_id"] as? String{

            println(request_id)
        }

        if let driver: String = result["driver"] as? String{

            println(driver)
        }

        if let eta: Int = result["eta"] as? Int{

            println(eta)
        }

        if let location: String = result["location"] as? String{

            println(location)
        }


        if let status: String = result["status"] as? String{

            println(status)
        }


        if let surge_multiplier: Int = result["surge_multiplier"] as? Int{

            println(surge_multiplier)
        }

        if let vehicle: String = result["vehicle"] as? String{

            println(vehicle)
        }

    }

    task.resume()

}

here is the Response I Got, Parsing is also given in my above method

{
  driver = "<null>";
  eta = 15;
  location = "<null>";
  "request_id" = "ea39493d-b718-429f-8710-00a34dcdaa93";
  status = processing;
  "surge_multiplier" = 1;
  vehicle = "<null>";
}

Enjoy

Answer 2

To use the token just follow step 5 of the instructions in the OAuth2 library, like you did before you started to try to sign it yourself a second time. The request has already been signed and has the Bearer token set up, there is nothing left to do for you:

let url = NSURL(string: "https://api.uber.com/v1/products?latitude=37.7759792&longitude=-122.41823")
let req = appDelegate.oauth.request(forURL: url)

// customize your request, if needed. E.g. for POST:
req.HTTPMethod = "POST"

// send the request
let session = NSURLSession.sharedSession()
let task = session.dataTaskWithRequest(req) { data, response, error in
    if nil != error {
        // something went wrong
    }
    else {
        // check the response and the data
        // you have just received data with an OAuth2-signed request!
    }
}
task.resume()

Answer 3

Updated for Swift 2. I used the same setup and library for oauth that Qadir describes in his question. I updated his request to work in Swift 2. Hope this helps others.

uberRequest:

    let params:[String:AnyObject] = [
        "product_id" : uberProduct,
        "start_latitude" : userLat,
        "start_longitude" : userLng,
        "end_latitude" : barLat,
        "end_longitude" : barLng]

    let urlPath = "https://sandbox-api.uber.com/v1/requests"
    let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
    var configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
    var session = NSURLSession(configuration: configuration)

    guard let endpoint = NSURL(string: urlPath) else { print("Error creating endpoint");return }

    let request = appDelegate.oauth.request(forURL: NSURL(string:urlPath)!)
    request.setValue("application/json; charset=utf-8", forHTTPHeaderField:"Content-Type")

    request.HTTPBody = try! NSJSONSerialization.dataWithJSONObject(params, options: NSJSONWritingOptions.PrettyPrinted)

    request.HTTPMethod = "POST"

    print("Prepare to make request -> \(request)")

    let task = NSURLSession.sharedSession().dataTaskWithRequest(request){ data, response, error in
        if error != nil{
            print("Error -> \(error)")
            return
        }

        do {
            let result = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers)

            print("Result -> \(result)")

        } catch {
            print("Error -> \(error)")
        }
    }

    task.resume()

It returns:

Result -> Optional(["driver": <null>, "request_id": 5834384c-7283-4fe6-88a7-e74150c6ab30, "surge_multiplier": 1, "location": <null>, "vehicle": <null>, "status": processing, "eta": <null>])