android - How can I construct this URL for RetroFit API -


this url using query results:

 http://query.yahooapis.com/v1/public/yql?q=select+*+from+yahoo.finance.historicaldata+where+symbol+%3d+%22yhoo%22+and+startdate+%3d+%222015-11-10%22+and+enddate+%3d+%222016-11-10%22&format=json&diagnostics=true&env=store%3a%2f%2fdatatables.org%2falltableswithkeys&callback=

i using retrofit first far how build url: 

   public static string getstockdataurl(string stock_symbol){         string startdate = utils.getlastyear() ;         string enddate = utils.gettodaydate();         try{             string yahoo_base_url = constants.yahoo_base_query;             string query_stock_data = constants.query_stock_data +                     constants.symbol_query +stock_symbol+ constants.start_date_query +startdate+"\" " +                    constants.end_date_query + enddate+"\"";             return yahoo_base_url + urlencoder.encode(query_stock_data, "utf-8")                     + constants.format_query                     + constants.tables_callback_query;         }catch (exception e){             e.printstacktrace();         }         return null;     }

these constants used create url 

public static final string yahoo_base_query = "http://query.yahooapis.com/v1/public/yql?q=";     public static final string query_stock_data = "select * yahoo.finance.historicaldata ";     public static final string symbol_query = "symbol = \"";     public static final string start_date_query = "\" , startdate = \"";     public static final string end_date_query =  "and enddate = \"";     public static final string format_query = "&format=json&diagnostics=true&env=store%3a%2f%2fdatatables.";     public static final string tables_callback_query = "org%2falltableswithkeys&callback=";

i have stock_symbol input user , create url last year date , todays date how can achieve retrofit api interface ?

this method query data retrofit

public void getstockquotes(string symbol) {         quotesapi apiservice =                 apiclient.getclient().create(quotesapi.class);          string query = utils.getstockdataurl(symbol);          log.d(log_tag, query);          call<quotesresponse> call = apiservice.getquotes(query);          call.enqueue(new callback<quotesresponse>() {              @override             public void onresponse(call<quotesresponse> call, retrofit2.response<quotesresponse> response) {                 list<quotes> movies = response.body().getresults();                 log.d(tag, "number of movies received: " + movies.size());             }              @override             public void onfailure(call<quotesresponse> call, throwable t) {                 log.d(tag, t.tostring());             }         });

this quotesapi interface have created

@get         call<quotesresponse> getquotes(@url string url);

these logcat details: 

 java.lang.nullpointerexception: attempt invoke virtual method 'java.util.list com.android.stockhawk.quotes.quotesresponse.getresults()' on null object reference                                                            @ com.android.stockhawk.service.stocktaskservice$1.onresponse(stocktaskservice.java:175)                                                            @ retrofit2.executorcalladapterfactory$executorcallbackcall$1$1.run(executorcalladapterfactory.java:68)                                                            @ android.os.handler.handlecallback(handler.java:746)                                                            @ android.os.handler.dispatchmessage(handler.java:95)                                                            @ android.os.looper.loop(looper.java:148)                                                            @ android.app.activitythread.main(activitythread.java:5443)                                                            @ java.lang.reflect.method.invoke(native method)                                                            @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:728)                                                            @ com.android.internal.os.zygoteinit.main(zygoteinit.java:618)

an interface should declared when using retrofit.

public interface stockdataservice {}

in interface, declare method:

// string int @get annotation should subpath , should declare baseurl @get("http://query.yahooapis.com/v1/public/yql") call<result> access(@querymap map<string, string> options);

put string "q", "format", "diagnostics","env","callback" keys of options actual values values of options


Comments

Post a Comment

Popular posts from this blog

asynchronous - C# WinSCP .NET assembly: How to upload multiple files asynchronously -

i using winscp .net assembly uploading files. want upload multiple files asynchronous way. have created method works single upload. public class uploadingdata { private sessionoptions _sessionoptions; private session _session; //connection etc private void onconnected() { foreach (var fileinfo in localfileslist) { var task = task.factory.startnew(() => uploadfilesasync(fileinfo)); } } private async task uploadfilesasync(string file) { string remotefilepath = _session.translatelocalpathtoremote(file, @"/", "/test_data_upload"); var uploading = _session.putfiles(file, remotefilepath, false); //when done await task.run(() => thread.sleep(1000)); } } please suggest me correct way. thanks you can use backgroundworker class this: string[] images = new string[50]; foreach (var path in images) { backgroundworker
Read more

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more