Backlog API で課題を登録する

Backlog APIを使用して課題を登録できます。認証方法は、 API Key方式とOAuth 2.0方式を提供しており、用途によって使い分けることができます。それぞれの認証方法でのサンプルを紹介します。課題の登録以外にもブラウザーからBacklogでできる操作の大部分をAPIから行うことができます。詳しくは Backlog API 紹介ページを参照してください。

apiKey, projectId, summary, issueTypeId, priorityId はお客様の環境にあわせた値を設定してください。

API Keyでの認証
1. Ruby
2. Python
3. Go
4. Google Apps Script
5. PHP
6. Java (Apache HttpClient)
7. C#
OAuth 2.0での認証
1. Go

API Keyでの認証

Ruby

#! /usr/bin/env ruby

require 'net/http'

# setup a http client
http = Net::HTTP.new('xxxxx.backlog.com', 443)
http.use_ssl = true

# post a message
path = '/api/v2/issues?apiKey= XXXXX'
params = {
           'projectId' => <projectId>,
           'summary' => 'Sample task3',
           'issueTypeId' => <issueTypeId>,
           'priorityId' => <priorityId>
}
headers = {
  'Content-Type' => 'application/x-www-form-urlencoded',
}
res = http.post(path, URI.encode_www_form(params), headers)
puts res.code
puts res.body

Python

import requests

url = 'https://xxxxx.backlog.com/api/v2/issues?apiKey=XXXXX'
data = {
        'projectId': <projectId>,
        'summary': 'Sample task',
        'issueTypeId': <issueTypeId>,
        'priorityId': <priorityId>
 }   
headers = {
        'Content-Type': 'application/x-www-form-urlencoded'
}
r = requests.post(url, data = data, headers = headers)
print(r.status_code)
print(r.json())

Go

package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
	"strconv"
	"strings"
)

var (
	host        = "xxxxx.backlog.com"
	apiKey      = "XXXXX"
	projectId   = <projectId>
	summary     = "Sample task"
	issueTypeId = <issueTypeId>
	priorityId  = <priorityId>
)

func main() {
	values := url.Values{
		"projectId":   {strconv.Itoa(projectId)},
		"summary":     {summary},
		"issueTypeId": {strconv.Itoa(issueTypeId)},
		"priorityId":  {strconv.Itoa(priorityId)},
	}
	client := http.DefaultClient
	req, _ := http.NewRequest("POST", fmt.Sprintf("https://%s/api/v2/issues?apiKey=%s", host, apiKey), strings.NewReader(values.Encode()))
	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	println(resp.StatusCode)
	body, _ := ioutil.ReadAll(resp.Body)
	println(string(body))
}

Google Apps Script

var url = "https://xxxxx.backlog.com/api/v2/issues?apiKey=XXXXX";
var data = {
	 "projectId": "<projectId>",
	 "summary": "Sample task",
	 "issueTypeId": "<issueTypeId>",
	 "priorityId": "<priorityId>"
	};
var options = {
	"method": "post",
	"contentType": "application/x-www-form-urlencoded",
	"payload": data
	};
var response = UrlFetchApp.fetch(url, options);

PHP

$host = 'xxxxx.backlog.com';
$apiKey = 'XXXXX';

$params = array(
 'projectId' => <projectId>,
 'summary' => 'Sample task',
 'issueTypeId' => <issueTypeId>,
 'priorityId' => <priorityId>
);

$headers = array('Content-Type:application/x-www-form-urlencoded');
$context = array(
 'http' => array(
 'method' => 'POST',
 'header' => $headers,
 'ignore_errors' => true
 )
);

$url = 'https://'.$host.'/api/v2/issues?apiKey='.$apiKey.'&'. http_build_query($params, '', '&');
$response = file_get_contents($url, false, stream_context_create($context));

Java （Apache HttpClient）

HttpClient client = HttpClientBuilder.create().build();

List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("projectId", <projectId>));
params.add(new BasicNameValuePair("summary", "Sample task"));
params.add(new BasicNameValuePair("issueTypeId", <issueTypeId>));
params.add(new BasicNameValuePair("priorityId", <priorityId>));

HttpPost post = new HttpPost("https://xxxxx.backlog.com/api/v2/issues?apiKey=XXXXX");
post.setEntity(new UrlEncodedFormEntity(params));
post.addHeader("Content-type", "application/x-www-form-urlencoded");
HttpResponse response = client.execute(post);

C#

var content = new FormUrlEncodedContent(new Dictionary<string, string>() {
 { "projectId", <projectId> },
 { "summary", "Sample task" },
 { "issueTypeId", <issueTypeId> },
 { "priorityId", <priorityId> }
});

var client = new HttpClient();
client.DefaultRequestHeaders.Add("ContentType", "application/x-www-form-urlencoded");
var response = client.PostAsync("https://xxxxx.backlog.com/api/v2/issues?apiKey=XXXXX", content);

OAuth 2.0での認証

Go

package main

import (
	"log"
	"net/http"
	"os"
	"fmt"
	"net/url"
	"strings"
	"io/ioutil"
	"encoding/json"
	"html/template"
)

var (
	response_type = "code"
        // Register and get from https://backlog.com/developer/applications/
	client_id = "xxx"
        // Register and get from https://backlog.com/developer/applications/
	client_secret = "xxx"
        // Need to random state and store session
	state = "aaa"
	backlog_uri = "https://xxx.backlog.jp/OAuth2AccessRequest.action?response_type=%s&client_id=%s&redirect_uri=%s&state=%s"
	oauth_uri = "https://xxx.backlog.jp/api/v2/oauth2/token"
	redirect_uri = "https://<your app domain>/oauth"
	grant_type = "authorization_code"
        addIssueUri = "https://xxx.backlog.jp/api/v2/issues"
	input *template.Template
)

type OauthResponse struct {
	TokenType string `json:"token_type"`
	AccessToken string `json:"access_token"`
	ExpiredIn int `json:"expired_in"`
	RefreshToken string `json:"refresh_token"`
}

func init() {
	input = template.Must(template.ParseFiles("input.html"))
}

func main() {
	port := os.Getenv("PORT")
	if port == "" {
		log.Fatal("$PORT must be set")
	}
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		http.Redirect(w, r, "redirect", http.StatusFound)
	})
	http.HandleFunc("/input", func(w http.ResponseWriter, r *http.Request) {
        http.ServeFile(w, r, "input.html")
	})
	http.HandleFunc("/redirect", func(w http.ResponseWriter, r *http.Request) {
		http.Redirect(w, r, fmt.Sprintf(backlog_uri, response_type, client_id, redirect_uri, state), http.StatusFound)
	})
	http.HandleFunc("/oauth", func(w http.ResponseWriter, r *http.Request) {
		code := r.URL.Query().Get("code")
		if code == "" {
			log.Fatalln("code is empty")
		}

		values := url.Values{
			"grant_type":   {grant_type},
			"code":     {code},
			"redirect_uri": {redirect_uri},
			"client_id":  {client_id},
			"client_secret": {client_secret},
		}
		client := http.DefaultClient
		req, _ := http.NewRequest("POST", oauth_uri, strings.NewReader(values.Encode()))
		req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
		resp, _ := client.Do(req)
		defer resp.Body.Close()
		body, _ := ioutil.ReadAll(resp.Body)

		data := new(OauthResponse)

		if err := json.Unmarshal(body, data); err != nil {
			fmt.Println("JSON Unmarshal error:", err)
			return
		}

		err := input.ExecuteTemplate(w, "input.html", data.AccessToken)

		if err != nil {
			log.Fatalln(err)
		}
	})
	http.HandleFunc("/done", func(w http.ResponseWriter, r *http.Request) {
		r.ParseForm()
		token := r.Form["token"]
		projectId := r.Form["projectId"]
		issueTypeId := r.Form["issueTypeId"]
		priorityId := r.Form["priorityId"]
		summary := r.Form["summary"]
		description := r.Form["description"]

		values := url.Values{
			"projectId": projectId,
			"summary": summary,
			"description": description,
			"issueTypeId": issueTypeId,
			"priorityId":  priorityId,
		}
		client := http.DefaultClient
		req, _ := http.NewRequest("POST", fmt.Sprintf(addIssueUri), strings.NewReader(values.Encode()))
		req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
		req.Header.Add("Authorization", "Bearer " + strings.Join(token,"" ))
		resp, _ := client.Do(req)
		defer resp.Body.Close()
		println(resp.StatusCode)
		body, _ := ioutil.ReadAll(resp.Body)

		fmt.Fprintf(w, string(body))
	})
	log.Fatal(http.ListenAndServe(":"+port, nil))
}

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