Re: VibeD - takeing out value from json

[holo via Digitalmars-d-learn]

There was need to change one line from:

auto header = result["heading"].to!string;

to:

auto header = result[0]["heading"].to!string;

VibeD - takeing out value from json

[holo via Digitalmars-d-learn]

Hello

I wrote such code to test restAPI client:

///
//app.d
///

import vibe.d;
import sites.frontpage;
import msfrontpage;

shared static this()
{
	// the router will match incoming HTTP requests to the proper 
routes

auto router = new URLRouter;

// registers each method of WebChat in the router
  auto api = new 
RestInterfaceClient!IfFrontPageAPI("http://127.0.0.1:8090/;);

router.registerWebInterface(new SilesianCloud(api));
// match incoming requests to files in the public/ folder
router.get("*", serveStaticFiles("public/"));

auto settings = new HTTPServerSettings;
settings.port = 8080;
settings.bindAddresses = ["::1", "127.0.0.1"];
listenHTTP(settings, router);
logInfo("Please open http://127.0.0.1:8080/ in your browser.");
}


//
//frontpage.d
//
module sites.frontpage;


import vibe.d;
import msfrontpage;



final class SilesianCloud {

  this(RestInterfaceClient!(IfFrontPageAPI) tmp)
  {
  this.frontpageapi = tmp;
  }

  public:
  // GET /
  void get()
  {
Json result = frontpageapi.getHome();
logInfo(result.toString);
auto header = result["heading"].get!string;
logInfo(result["heading"].get!string);
render!("frontpage.dt",header);
  }

  private:
RestInterfaceClient!(IfFrontPageAPI) frontpageapi;
}

But it looks like my value is not "extracted" from Json in proper 
string, even logInfo(header) shows "nothing" and in web broser im 
getting:


500 - Internal Server Error

Internal Server Error

Internal error information:
std.json.JSONException@std/json.d(1330): Got JSON of type array, 
expected object.


../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/data/json.d:1054 
const(pure @safe void function(immutable(char)[])) 
vibe.data.json.Json.checkType!(vibe.data.json.Json[immutable(char)[]]).checkType
 [0x88f762]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/data/json.d:339 ref 
vibe.data.json.Json vibe.data.json.Json.opIndex(immutable(char)[]) [0x977d4e]
source/sites/frontpage.d:20 void 
sites.frontpage.SilesianCloud.get() [0x7d129c]

../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/web/web.d:822 void 
vibe.web.web.handleRequest!("get", void sites.frontpage.SilesianCloud.get(), 
sites.frontpage.SilesianCloud).handleRequest(vibe.http.server.HTTPServerRequest, 
vibe.http.server.HTTPServerResponse, sites.frontpage.SilesianCloud, 
vibe.web.web.WebInterfaceSettings) [0x7bd220]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/web/web.d:185 void 
vibe.web.web.__T20registerWebInterfaceHTC5sites9frontpage13SilesianCloudVE4vibe3web6common11MethodStylei5Z.registerWebInterface(vibe.http.router.URLRouter,
 sites.frontpage.SilesianCloud, 
vibe.web.web.WebInterfaceSettings).__lambda4!(vibe.http.server.HTTPServerRequest,
 
vibe.http.server.HTTPServerResponse).__lambda4(vibe.http.server.HTTPServerRequest,
 vibe.http.server.HTTPServerResponse) [0x7bca20]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/http/router.d:268 
_D4vibe4http6router9URLRouter13handleRequestMFC4vibe4http6server17HTTPServerRequestC4vibe4http6server18HTTPServerResponseZ21__T9__lambda4TmTAAyaZ9__lambda4MFmMAAyaZb
 [0x864a0e]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/http/router.d:595 
const(bool function(immutable(char)[], scope bool delegate(ulong, scope 
immutable(char)[][]))) 
vibe.http.router.MatchTree!(vibe.http.router.Route).MatchTree.doMatch [0x8657f5]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/http/router.d:528 bool 
vibe.http.router.MatchTree!(vibe.http.router.Route).MatchTree.match(immutable(char)[],
 scope bool delegate(ulong, scope immutable(char)[][])) [0x865047]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/http/router.d:261 void 
vibe.http.router.URLRouter.handleRequest(vibe.http.server.HTTPServerRequest, 
vibe.http.server.HTTPServerResponse) [0x8646ad]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/http/server.d:1981 bool 
vibe.http.server.handleRequest(vibe.core.stream.Stream, 
vibe.core.net.TCPConnection, vibe.http.server.HTTPListenInfo, ref 
vibe.http.server.HTTPServerSettings, ref bool) [0x8a7490]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/http/server.d:1737 void 
vibe.http.server.handleHTTPConnection(vibe.core.net.TCPConnection, 
vibe.http.server.HTTPListenInfo) [0x8a5a9a]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/http/server.d:1618 void 
vibe.http.server.listenHTTPPlain(vibe.http.server.HTTPServerSettings).doListen(vibe.http.server.HTTPListenInfo,
 bool, bool).__lambda4(vibe.core.net.TCPConnection) [0x8a5538]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/core/drivers/libevent2_tcp.d:618
 void vibe.core.drivers.libevent2_tcp.ClientTask.execute() [0x964098]
../../.dub/packages/vibe-d-0.7.31/vibe-d/source/vibe/core/core.d:595 void 
vibe.core.core.makeTaskFuncInfo!(void delegate()).makeTaskFuncInfo(ref void 
delegate()).callDelegate(vibe.core.core.TaskFuncInfo*) [0x81193f]