SalesforceからBacklogAPIを利用してみる

    private static final String BASE_URL        = System.Label.BACKLOG_BASE_URL;
    private static final String CLIENT_ID       = System.Label.BACKLOG_CLIENT_ID;
    private static final String CLIENT_SECRET   = System.Label.BACKLOG_CLIENT_SECRET;
    private static final String REDIRECT_URI    = System.Label.BACKLOG_REDIRECT_URI;

    @AuraEnabled
    public static String goAccessRequest() {
        PageReference pr = new PageReference(BASE_URL + '/OAuth2AccessRequest.action?response_type=code&client_id=' + CLIENT_ID);
        aura.redirect(pr);
        return null;
    }

    @AuraEnabled
    public static String getTokenAndSearchMyTask(String code) {
        String token = getAuthorizationCode(code);

        String myTask = searchMyTask(token);
        TokenInformationDao.upsertToken(TOKEN_KEY, token);

        return myTask;
    }

    getTokenInfoAndSearchMyTaskInfo: function(component, event, code) {
        var action = component.get("c.getTokenAndSearchMyTask");
        action.setParams({
            "code": code
        });
        action.setCallback(this, function(response) {
            if (response.getState() == "SUCCESS") {
                this.setMyTaskInfo(component, event, response.getReturnValue());
                this.showToast(component, event, "success", "データ取得成功", "Response State is " + response.getState());
            } else {
                this.showToast(component, event, "error", "トークン／データ取得失敗", "Response State is " + response.getState() + " - " + response.getReturnValue());
            }
        });
        $A.enqueueAction(action);
    }

    /**
     * アクセストークンを取得する
     */
    @TestVisible
    private static String getAuthorizationCode(String code) {

        String endpoint      = BASE_URL + '/api/v2/oauth2/token';
        String method        = 'POST';
        String accept        = null;
        String contentType   = 'application/x-www-form-urlencoded';
        String authorization = null;
        String body          = 'grant_type=authorization_code&code=' + code + '&client_id=' + CLIENT_ID + '&client_secret=' + CLIENT_SECRET;

        return callRequest(endpoint, method, accept, contentType, authorization, body);
    }

    /**
     * アクセストークンを更新する
     */
    @TestVisible
    private static String getRefreshToken(String refreshToken) {

        String endpoint      = BASE_URL + '/api/v2/oauth2/token';
        String method        = 'POST';
        String accept        = null;
        String contentType   = 'application/x-www-form-urlencoded';
        String authorization = null;
        String body          = 'grant_type=refresh_token&client_id=' + CLIENT_ID + '&client_secret=' + CLIENT_SECRET + '&refresh_token=' + refreshToken;

        return callRequest(endpoint, method, accept, contentType, authorization, body);
    }

    /**
     * 自分が担当で未完了となっている課題を取得する
     */
    @TestVisible
    private static String getMyIncompleteIssues(String accessToken, String tokenType, String myselfId, Set<String> incompleteStatusIdSet, Integer count) {

        String statusParam = '';
        for (String s : incompleteStatusIdSet) {
            statusParam += '&statusId[]=' + s;
        }
        String queryString   = 'assigneeId[]=' + myselfId + statusParam + '&count=' + count + '&sort=priority&order=asc';
        String endpoint      = BASE_URL + '/api/v2/issues?' + queryString;
        String method        = 'GET';
        String accept        = 'application/json';
        String contentType   = 'application/json;charset=utf-8';
        String authorization = tokenType + ' ' + accessToken;
        String body          = null;

        return callRequest(endpoint, method, accept, contentType, authorization, body);
    }
    etc.