Node.js で Synology の WebDAV にアクセスする

ライブラリーのインストール

sudo npm install -g webdav

フォルダーの一覧

webdav_list.js

#! /usr/bin/node
//
//  webdav_list.js
//
//                      Mar/03/2021
// ---------------------------------------------------------------
const { createClient } = require("webdav")

const client = createClient(
    "https://example.synology.me:5006/",
    {
        username: "scott",
        password: "secret"
    }
)


// ---------------------------------------------------------------
async function webdevListfile (folder)
{
    const directoryItems = await client.getDirectoryContents(folder)

    console.log(directoryItems)
}

// ---------------------------------------------------------------
const folder = "/homes/scott/tmp"
webdevListfile(folder)
// ---------------------------------------------------------------

実行スクリプト

export NODE_PATH=/usr/lib/node_modules
#
./webdav_list.js

ファイルのアップロード

webdav_put.js

#! /usr/bin/node
//
//  webdav_put.js
//
//                      Mar/03/2021
// ---------------------------------------------------------------
var fs = require("fs")
// ---------------------------------------------------------------
const { createClient } = require("webdav");

const client = createClient(
    "https://example.synology.me:5006/",
    {
        username: "scott",
        password: "secret"
    }
);


// ---------------------------------------------------------------
async function webdevPutfile (file_in, file_out)
{
    const str = fs.readFileSync (file_in,'utf8')

    await client.putFileContents(file_out, str)
}

// ---------------------------------------------------------------
const file_in = "./tmp01.txt"
const file_out = "/homes/scott/tmp/tmp01.txt"

webdevPutfile(file_in,file_out)
// ---------------------------------------------------------------

実行スクリプト

export NODE_PATH=/usr/lib/node_modules
#
./webdav_put.js

ファイルのダウンロード

webdav_get.js

#! /usr/bin/node
//
//  webdav_get.js
//
//                      Mar/03/2021
// ---------------------------------------------------------------
var fs = require("fs")
// ---------------------------------------------------------------
const { createClient } = require("webdav");

const client = createClient(
    "https://example.synology.me:5006/",
    {
        username: "scott",
        password: "secret"
    }
);


// ---------------------------------------------------------------
async function webdevGetfile (file_in, file_out)
{
    const strx = await client.getFileContents(file_in, { format: "text" });

    fs.writeFile (file_out,strx, function (err)
        {
        if (err) {
            console.log("Error on write: " + err)
        } else {
            console.log("File written.")
            }
        })

}

// ---------------------------------------------------------------
const file_in = "/homes/scott/tmp/tmp02.txt"
const file_out = "./tmp02.txt"

webdevGetfile(file_in,file_out)
// ---------------------------------------------------------------

実行スクリプト

export NODE_PATH=/usr/lib/node_modules
#
./webdav_get.js