ios - Integrate Yelp API into Swift Application -

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i trying build iphone application capabilities of searching yelp's database using api. have never used api before (i'm student- not professional development experience), need simple walkthrough on how pull data overall, filter, , authenticate myself data. i'd learn how save location's identifier plist app can store places user visited. appreciated. thank you!

i found online, can't make sense of it. can explain?

class yelpclient: bdboauth1requestoperationmanager {  var accesstoken: string! var accesssecret: string!  required init(coder adecoder: nscoder) {     super.init(coder: adecoder) }  init(consumerkey key: string!, consumersecret secret: string!, accesstoken: string!, accesssecret: string!) {     self.accesstoken = accesstoken     self.accesssecret = accesssecret     var baseurl = nsurl(string: "http://api.yelp.com/v2/")     super.init(baseurl: baseurl, consumerkey: key, consumersecret: secret);      var token = bdboauthtoken(token: accesstoken, secret: accesssecret, expiration: nil)     self.requestserializer.saveaccesstoken(token) }  func searchwithterm(term: string, parameters: dictionary<string, string>? = nil, offset: int = 0, limit: int = 20, success: (afhttprequestoperation!, anyobject!) -> void, failure: (afhttprequestoperation!, nserror!) -> void) -> afhttprequestoperation! {     var params: nsmutabledictionary = [         "term": term,         "offset": offset,         "limit": limit     ]     (key, value) in parameters! {         params.setvalue(value, forkey: key)     }     return self.get("search", parameters: params, success: success, failure: failure) }  }


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