Added integration for Readwise Reader

integration/readwise/readwise.go

@@ -0,0 +1,66 @@
+// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+// Readwise Reader API documentation: https://readwise.io/reader_api
+
+package readwise // import "miniflux.app/integration/readwise"
+
+import (
+	"fmt"
+	"net/url"
+
+	"miniflux.app/http/client"
+)
+
+// Document structure of a Readwise Reader document
+// This initial version accepts only the one required field, the URL
+type Document struct {
+	Url string `json:"url"`
+}
+
+// Client represents a Readwise Reader client.
+type Client struct {
+	apiKey string
+}
+
+// NewClient returns a new Readwise Reader client.
+func NewClient(apiKey string) *Client {
+	return &Client{apiKey: apiKey}
+}
+
+// AddEntry sends an entry to Readwise Reader.
+func (c *Client) AddEntry(link string) error {
+	if c.apiKey == "" {
+		return fmt.Errorf("readwise: missing credentials")
+	}
+
+	doc := &Document{
+		Url: link,
+	}
+
+	apiURL, err := getAPIEndpoint("https://readwise.io/api/v3/save/")
+	if err != nil {
+		return err
+	}
+
+	clt := client.New(apiURL)
+	clt.WithAuthorization("Token " + c.apiKey)
+	response, err := clt.PostJSON(doc)
+	if err != nil {
+		return fmt.Errorf("readwise: unable to send entry: %v", err)
+	}
+
+	if response.HasServerFailure() {
+		return fmt.Errorf("readwise: unable to send entry, status=%d", response.StatusCode)
+	}
+
+	return nil
+}
+
+func getAPIEndpoint(pathURL string) (string, error) {
+	u, err := url.Parse(pathURL)
+	if err != nil {
+		return "", fmt.Errorf("readwise: invalid API endpoint: %v", err)
+	}
+	return u.String(), nil
+}