add twitter

output/twitter.go

@@ -0,0 +1,51 @@
+package output
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"github.com/michimani/gotwi"
+	"github.com/michimani/gotwi/tweet/managetweet"
+	"github.com/michimani/gotwi/tweet/managetweet/types"
+)
+
+type twitteroutput struct {
+	accessToken  string
+	accessSecret string
+	client       *gotwi.Client
+}
+
+func TwitterOutput(accessToken string, accessSecret string) *twitteroutput {
+	twitteroutput := &twitteroutput{
+		accessToken:  accessToken,
+		accessSecret: accessSecret,
+	}
+	errOAuth := twitteroutput.newOAuth1Client(accessToken, accessSecret)
+	if errOAuth != nil {
+		fmt.Fprintln(os.Stderr, errOAuth)
+		os.Exit(1)
+	}
+	return twitteroutput
+}
+
+func (to *twitteroutput) newOAuth1Client(accessToken, accessSecret string) error {
+	in := &gotwi.NewClientInput{
+		AuthenticationMethod: gotwi.AuthenMethodOAuth1UserContext,
+		OAuthToken:           accessToken,
+		OAuthTokenSecret:     accessSecret,
+	}
+
+	client, err := gotwi.NewClient(in)
+	to.client = client
+	return err
+}
+
+func (to *twitteroutput) Write(str string) error {
+	p := &types.CreateInput{
+		Text: gotwi.String(str),
+	}
+
+	_, err := managetweet.Create(context.Background(), to.client, p)
+	return err
+}