test1.go

/*
http://json2struct.mervine.net/
https://mholt.github.io/json-to-go/
http://stackoverflow.com/questions/26511417/unmarshal-json-data-in-a-specific-struct-in-golang

{
  "cp": "81270",
  "colonia": "Villa de Cortes",
  "ciudad": "Sinaloa",
  "delegacion": "Ahome",
  "location": {
    "lat": "25.1584",
    "lon": "-107.7063"
  }
}

*/

package main

import (
  "flag"
  "fmt"
  elastigo "github.com/mattbaird/elastigo/lib"
  j "github.com/ricardolonga/jsongo"
  "log"
  "os"
  "encoding/json"
)

var (
  host *string = flag.String("host", "172.17.0.4", "Elasticsearch Host")
)

func main() {
  c := elastigo.NewConn()
  log.SetFlags(log.LstdFlags)
  flag.Parse()

  // Trace all requests
  c.RequestTracer = func(method, url, body string) {
    log.Printf("Requesting %s %s", method, url)
    log.Printf("Request body: %s", body)
  }

  fmt.Println("host = ", *host)
  // Set the Elasticsearch Host to Connect to
  c.Domain = *host

  // Search Using Raw json String
  term := "villa de cortes"

  searchJson := j.Object().
    Put("size", 10).
    Put("query", j.Object().
      Put("match", j.Object().
        Put("_all", j.Object().
          Put("query", term).
          Put("operator", "and")))).
    Put("sort", j.Array().
      Put(j.Object().
        Put("colonia", j.Object().
          Put("order", "asc").
          Put("mode", "avg"))))

  fmt.Println(searchJson.Indent())

  searchresponse, err := c.Search("mx", "postal_code", nil, searchJson)

  var d Document
  bytes, err := searchresponse.Hits.Hits[0].Source.MarshalJSON()
  if err != nil {
    log.Fatalf("err calling marshalJson:%v", err)
  }
  
  log.Printf("%s", bytes)

  json.Unmarshal(bytes, &d)
  log.Printf("Search Found: %s", d)


  /*
  if len(out.Hits.Hits) >= 1 {
    fmt.Println("%v", out.Hits.Hits[0].Source)
  }
  exitIfErr(err)

  fmt.Println("%n", len(out.Hits.Hits))
  */

}
func exitIfErr(err error) {
  if err != nil {
    fmt.Fprintf(os.Stderr, "Error: %s\n", err.Error())
    os.Exit(1)
  }
}

type Document struct {
  Ciudad     string `json:"ciudad"`
  Colonia    string `json:"colonia"`
  Cp         string `json:"cp"`
  Delegacion string `json:"delegacion"`
  Location   struct {
    Lat string `json:"lat"`
    Lon string `json:"lon"`
  } `json:"location"`
}


func (d *Document) String() string {
  b, _ := json.Marshal(d)
  return string(b)
}