GoogleマップサービスのGoクライアントでDirections返信を使用するにはどうすればよいですか？

Question

Goで「googlemaps.github.io/maps」を使用してルートを取得すると、レスポンスはマップの配列になります。ルート。このレスポンスをjavacriptのgoogle.maps.DirectionsRenderer();で読み取り可能なものにする方法はありますか？これはGoサーバーで指示を取得し、そのデータを複数のプラットフォームに配布することです。このデータを視覚的な地図に変換する方法についてのご意見は大歓迎です。

ゴーコード：

package main 

import (
    "log" 

    "googlemaps.github.io/maps" 
    "github.com/kr/pretty" 
    "golang.org/x/net/context" 
) 

func checkForError(err error) { 
    if err != nil{ 
     log.Fatal(err) 
    } 
} 

func main() { 
    c, err := maps.NewClient(maps.WithAPIKey("myapikey")) 
    checkForError(err) 

    r := &maps.DirectionsRequest{ 
     Origin:  "Hollywood, FL", 
     Destination: "Davie, FL", 
    } 

    resp, _, err := c.Directions(context.Background(), r) 
    checkForError(err) 

    // render := 

    pretty.Println(resp) 
} 

出力：

[]maps.Route{ 
    { 
     Summary: "I-95 N and I-595 W", 
     Legs: { 
      &maps.Leg{ 
       Steps: { 
        &maps.Step{ 
         HTMLInstructions: "Head <b>east</b> on <b>Hollywood Blvd</b> toward <b>S Dixie Hwy</b>", 
         Distance:   maps.Distance{HumanReadable:"217 ft", Meters:66}, 
         Duration:   23000000000, 
         StartLocation: maps.LatLng{Lat:26.0112983, Lng:-80.1494921}, 
         EndLocation:  maps.LatLng{Lat:26.0113264, Lng:-80.14883689999999}, 
         Polyline:   maps.Polyline{Points:"siw}CheehN?e@Cq@Ai@"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
        &maps.Step{ 
         HTMLInstructions: "Make a <b>U-turn</b> at <b>S 21st Ave</b>", 
         Distance:   maps.Distance{HumanReadable:"0.6 mi", Meters:886}, 
         Duration:   90000000000, 
         StartLocation: maps.LatLng{Lat:26.0113264, Lng:-80.14883689999999}, 
         EndLocation:  maps.LatLng{Lat:26.0111533, Lng:-80.1575536}, 
         Polyline:   maps.Polyline{Points:"yiw}CfaehNU??h@?r@BpAJVDfFHlOBfDDlCB|C@z@H~F"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
        &maps.Step{ 
         HTMLInstructions: "At the traffic circle, take the <b>3rd</b> exit and stay on <b>Hollywood Blvd</b>", 
         Distance:   maps.Distance{HumanReadable:"0.6 mi", Meters:937}, 
         Duration:   148000000000, 
         StartLocation: maps.LatLng{Lat:26.0111533, Lng:-80.1575536}, 
         EndLocation:  maps.LatLng{Lat:26.011037, Lng:-80.16587369999999}, 
         Polyline:   maps.Polyline{Points:"uhw}CtwfhNGJAB?H?D?J?FAD?DCDCDCDSNUD]N_@XY\\Ub@GRGPIh@Ch@Bd@BJDXN`@DFLVVZ\\T\\P`@JNJHFFHBFBN@F?JBpB?d@@`ABpD@zB?nAB`C@bB@fAAt@AlA"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
        &maps.Step{ 
         HTMLInstructions: "Turn <b>right</b> to merge onto <b>I-95 N</b> toward <b>W Palm Beach</b>", 
         Distance:   maps.Distance{HumanReadable:"4.4 mi", Meters:7063}, 
         Duration:   277000000000, 
         StartLocation: maps.LatLng{Lat:26.011037, Lng:-80.16587369999999}, 
         EndLocation:  maps.LatLng{Lat:26.0732058, Lng:-80.1671851}, 
         Polyline:   maps.Polyline{Points:"_hw}CtkhhNKVCHEJGJCBEBEBIBQDkBB_BJq@DkBR_Ff@_CT[DM@IBGFKJy@FyAFuAB_CD_B@U@cCBE?A?}BByQLqBA{BGuBQeBQyAQo@KoBc@aBa@sA]iHyBa@MoA[wBm@g@K_Ds@cB]aB[eB[qAScBU{BWMCWCsBWg@G}Ks@cHe@aQkA{CUeCOyCSsE[wDW{CSsKu@qAIEA_@COAA?gBM_@Co@E[Ck@CUAs@E]AWA]A]?q@AU?a@?O?Y?kA?s@Bk@@o@Bm@@wEPcKZc@@w@BiAFi@Bq@Dw@Hk@FoBRw@JSD[DmAR}@P}Dt@oCh@yFdAgB\\A@g@HIBA?eCd@cDn@y@Ns@NiB\\_ARu@LaBZyDt@qCh@}Bf@oDx@sBf@}A`@qAZcBb@aBb@qEpA"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
        &maps.Step{ 
         HTMLInstructions: "Take exit <b>24</b> for <b>Interstate 595</b> toward <b>Port Everglades</b>/<b>Ft Laud-Hlwd</b>/<b>International Airport</b>", 
         Distance:   maps.Distance{HumanReadable:"0.3 mi", Meters:416}, 
         Duration:   17000000000, 
         StartLocation: maps.LatLng{Lat:26.0732058, Lng:-80.1671851}, 
         EndLocation:  maps.LatLng{Lat:26.0768262, Lng:-80.1680758}, 
         Polyline:   maps.Polyline{Points:"qlc~C|shhNKIAAAAA?C?E?E?A?MBc@H_@FqB^uAVoAT{@Na@F[Hi@HYFyAXm@L"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
        &maps.Step{ 
         HTMLInstructions: "Keep <b>left</b> at the fork, follow signs for <b>I-595 W</b>/<b>I-75</b>/<b>Florida's Turnpike</b> and merge onto <b>I-595 W</b>", 
         Distance:   maps.Distance{HumanReadable:"4.4 mi", Meters:7161}, 
         Duration:   255000000000, 
         StartLocation: maps.LatLng{Lat:26.0768262, Lng:-80.1680758}, 
         EndLocation:  maps.LatLng{Lat:26.0947648, Lng:-80.2317655}, 
         Polyline:   maps.Polyline{Points:"ecd~CnyhhN[H[D_@Dm@FWBMBU@u@D_@@]@q@@W?]?MAU?[AYAQAe@C_@CWAk@CWAUAUAM?e@?W@Q@WBSBQBI@KBMBUHOFSFWNMHC@A@MHa@ZIFGF]`@IN[f@_@|@IVGT?BEREPCRALAHAF?BAB?FAJ?RAL?F?\\?F?D?N?RDlABn@Bx@@r@@t@@t@AV?h@A`@Ap@Cb@AZ?N?LATCh@CZ?@?@?@@@?@?@@BDFMhBIlAKdBGt@[rEe@zHAFk@vIE`@C`@UlDSbD?FMbECh@A|@C|A?`ACtEDxLD~PBvFDbE@vB?tF?xB@z@ClA?X?@?DG|BGx@IjAGx@Er@MtAMlAMdA[rBQhAUjA[zAWfA[vAYbAc@zAkAtCKXSj@wAhDiC`GiBdE_@|@]x@s@jBs@lBsAnDoAhEw@vCe@xB{@rD[nAsDjS]hBOn@e@~Bc@zBo@rCUpASfAu@fFUjBIj@MhAKp@S|ASzAS`BIv@]nCMbA_@bCQhAAF?FO~@y@zFeAbHyAtJ"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
        &maps.Step{ 
         HTMLInstructions: "Take exit <b>6</b> toward <b>FL-817</b>/<b>University Dr</b>", 
         Distance:   maps.Distance{HumanReadable:"0.4 mi", Meters:566}, 
         Duration:   20000000000, 
         StartLocation: maps.LatLng{Lat:26.0947648, Lng:-80.2317655}, 
         EndLocation:  maps.LatLng{Lat:26.0963976, Lng:-80.2371076}, 
         Polyline:   maps.Polyline{Points:"gsg~CpguhNM\\Ot@qBfKs@tD{@nEKd@S|@Id@Kj@?@ABABMH"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
        &maps.Step{ 
         HTMLInstructions: "Merge onto <b>FL-84 W</b>", 
         Distance:   maps.Distance{HumanReadable:"0.8 mi", Meters:1365}, 
         Duration:   96000000000, 
         StartLocation: maps.LatLng{Lat:26.0963976, Lng:-80.2371076}, 
         EndLocation:  maps.LatLng{Lat:26.0994367, Lng:-80.25034819999999}, 
         Polyline:   maps.Polyline{Points:"o}g~C|hvhNq@~EG`@_@`C_@jCWrBc@dDi@zDyAnJUvAM|@WnBMz@I|@OlAQ|AWrBQ|AKv@SxAWzASpAUnAYpAI`@"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
        &maps.Step{ 
         HTMLInstructions: "Turn <b>left</b> onto <b>S University Dr</b>", 
         Distance:   maps.Distance{HumanReadable:"1.7 mi", Meters:2808}, 
         Duration:   279000000000, 
         StartLocation: maps.LatLng{Lat:26.0994367, Lng:-80.25034819999999}, 
         EndLocation:  maps.LatLng{Lat:26.07466, Lng:-80.25254079999999}, 
         Polyline:   maps.Polyline{Points:"oph~Ct{xhNKf@t@ND@h@Hd@JRBD@bBZfANl@Jx@JtALr@HjBLd@@pBJR@~BDT?z@AhBAt@A`CCfAArAC~@AfAAfBETA~GIlBCvHK|EGbFIr@AvDGR?jB?dC?N?pCDpCLl@FlBRPBl@Fh@HxCf@hGpAn@NzB`@VBx@LtAN~@Ht@FrAJ"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
        &maps.Step{ 
         HTMLInstructions: "Make a <b>U-turn</b><div style=\"font-size:0.9em\">Destination will be on the left</div>", 
         Distance:   maps.Distance{HumanReadable:"0.2 mi", Meters:242}, 
         Duration:   38000000000, 
         StartLocation: maps.LatLng{Lat:26.07466, Lng:-80.25254079999999}, 
         EndLocation:  maps.LatLng{Lat:26.0765145, Lng:-80.25211829999999}, 
         Polyline:   maps.Polyline{Points:"suc~CjiyhN@i@g@EwAIC?sAMYCm@Iy@M[E@T"}, 
         Steps:   nil, 
         TransitDetails: (*maps.TransitDetails)(nil), 
         TravelMode:  "DRIVING", 
        }, 
       }, 
       Distance:   maps.Distance{HumanReadable:"13.4 mi", Meters:21510}, 
       Duration:   1243000000000, 
       DurationInTraffic: 0, 
       ArrivalTime:  time.Time{}, 
       DepartureTime:  time.Time{}, 
       StartLocation:  maps.LatLng{Lat:26.0112983, Lng:-80.1494921}, 
       EndLocation:  maps.LatLng{Lat:26.0765145, Lng:-80.25211829999999}, 
       StartAddress:  "Hollywood, FL, USA", 
       EndAddress:  "Davie, FL, USA", 
      }, 
     }, 
     WaypointOrder: {}, 
     OverviewPolyline: maps.Polyline{Points:"siw}CheehNCwAAi@U??|ABpAJVNtVHtHDxEH~FGJAL?PEXGJSNUD]N_@XY\\Ub@Od@Ih@Ch@Fp@Tz@R^t@p@\\P`@JXRJPDVDdFH~NBjDCbC]x@YNQDkBBqCPgNvAWDSRsCNuEH_GF_CByQLqBA{BGuBQ_Ec@_Do@uD_AkIgCgEiAgE_AeEy@wDo@_Fm@yC_@eM{@eZqBoSuAqZsBsE[sCMeCEaB?{EHmTp@}ETkGp@{Dp@oTbEmMdCaIzAkI~AmH`BgKhCsHtBMKMAy@L{M`C}Dx@aCVyBLeCByAEoBKoBI}ABgAL_AX}@b@{@n@e@h@e@v@i@tAGXQfACTEfBDvBJrEAxCG`CInBBHDFMhBUrDkAlQkAhQSjDQlFIrLJx^HzLBbPChBGbCQdCMlB[bDi@xDg@tCs@bDu@zCc@zAkAtC_@dAkJnTyEbMgC`JaBlH[nAsDjSm@xCoC`NiAnH_@vCaAtHiAlJs@|EiAzH_DxS]rAeD|PeBxIOt@MHq@~Eg@bDeC`RuCtRy@dHiAbJk@lDo@`DUhAz@PhBZjDj@fBVhCVpCNdCLtCD|IIbHIjOUlX_@jEGpF?`DDpCLl@F~BVvAPxCf@hGpAjDp@pAPtCXhCR@i@g@E{AImBQgBW[E@T"}, 
     Bounds:   maps.LatLngBounds{ 
      NorthEast: maps.LatLng{Lat:26.0994988, Lng:-80.14883689999999}, 
      SouthWest: maps.LatLng{Lat:26.0110222, Lng:-80.25254079999999}, 
     }, 
     Copyrights: "Map data ©2016 Google", 
     Warnings: {}, 
    }, 
} 

Answer 1

JSON出力は、あなたがしているDirectionsRenderer()コンストラクタに直接DirectionsRendererOptions経由で渡されDirectionsResultオブジェクト、されていること尋ねる

Goにマーシャリングする場合は、同じ構造体を使用して、DirectionsResultオブジェクトを探しているコンシューマにマーシャルすることができます。