COTOHA API Portal の使用例です。

フォルダー構造

$ tree -a
.
├── akai_rousoku.txt
├── .env
├── get_config.go
├── get_token.go
└── key_word.go

key_word.go

// ---------------------------------------------------------------
//
//	key_word.go
//
//					Feb/25/2020
// ---------------------------------------------------------------
package main

import (
	"fmt"
	"os"
	"encoding/json"
	"net/http"
	"strings"
	"io/ioutil"
)

// ---------------------------------------------------------------
func key_word_proc(config map[string]interface{},doc string) {
	out_filename := "out01.json"
//	fmt.Printf("%s\n",doc)

	data := make (map[string]interface{})
	data["document"] = doc
	data["type"] = "default"
	str_json, _ := json.Marshal(data)
//	fmt.Printf("%s\n",str_json)

	url_base := config["url_base"]
	fmt.Printf("%s\n",url_base)
	url_target := url_base.(string) + "v1/keyword"
	fmt.Printf("%s\n",url_target)

	req, _ := http.NewRequest("POST", url_target, strings.NewReader(string(str_json)))

	req.Header.Set("Content-Type","application/json") 
	req.Header.Set("Authorization", "Bearer " + config["access_token"].(string))

	client := new(http.Client)
	resp, error := client.Do(req)
	if error != nil {
		fmt.Println("*** error *** client.Do ***")
		fmt.Println("Request error:", error)
		}

	bb, err := ioutil.ReadAll(resp.Body)
	if err == nil {
		ioutil.WriteFile (out_filename,bb,0666)

		var unit_aa map[string]interface{}
		json.Unmarshal ([]byte(string(bb)), &unit_aa)
		fmt.Printf("len(unit_aa) = %d\n", len(unit_aa))
		unit_bb := unit_aa["result"]
		fmt.Println(unit_bb)
		}	


}

// ---------------------------------------------------------------
func main() {

	fmt.Fprintf (os.Stderr,"*** 開始 ***\n")

	file_in := os.Args[1]
	fmt.Printf ("%s\n",file_in)
	buff,_ := ioutil.ReadFile (file_in)
	doc := string(buff)

	config := get_config_proc ()

	access_token := get_token_proc (config)

	config["access_token"] = access_token

	fmt.Printf("%s\n",config["access_token"])

//	sentence := "特急はくたかで富山に向かいます。それから、金沢に行って、兼六園に行きます。"

	key_word_proc(config,doc)

	fmt.Fprintf (os.Stderr,"*** 終了 ***\n")
}

// ---------------------------------------------------------------

get_config.go get_token.go はこちら
COTOHA API で構文解析 (Golang)

実行コマンド

go run key_word.go get_config.go get_token.go akai_rousoku.txt

次のJSONファイルが作成されます。

out01.json

{
  "result" : [ {
    "form" : "猿",
    "score" : 135.52966
  }, {
    "form" : "蝋燭",
    "score" : 83.9601
  }, {
    "form" : "花火",
    "score" : 78.08584
  }, {
    "form" : "亀",
    "score" : 43.078
  }, {
    "form" : "火",
    "score" : 42.81965
  } ],
  "status" : 0,
  "message" : ""
}