Quicknode

2020年12月29日 — 読了時間7分

Developing in the Web3 and blockchain space presents unique challenges, especially with the recent Decentralized Finance (DeFi) boom. Web3 developers are eager to build decentralized applications (dApps) on Ethereum, Solana, and other blockchains, but the process can be daunting due to infrastructure and setup complexities. This is where Quicknode comes in. Quicknode simplifies your journey, providing the best tools and services to jump-start building in the Web3 space, allowing you to focus on innovation without worrying about technical hurdles.

Quicknodeのご紹介

Navigating the complexities of Web3 and blockchain development can be challenging, especially with the surge in Decentralized Finance (DeFi) and the need for robust infrastructure.

Quicknode 皆様の開発体験を一新Quicknode 。Quicknode 単なるノードにとどまらず、開発プロセスを効率化する包括的なツールとサービスのスイートQuicknode 、絶え間ない監視やメンテナンスの必要性を解消します。

Our platform empowers Web3 developers to focus on creating innovative decentralized applications (dApps) without getting bogged down by technical hurdles. With Quicknode, you have everything you need to jumpstart your Web3 projects and effortlessly bring your vision to life.

独自のNodeを運用する手間

Ethereum 独自に運用する際に生じうる重要な課題をいくつか挙げます：

• Space: Blockchains are distributed Ledgers and a Full node will contain an entire copy of the ledger, which at the time of writing this guide is over 4TB and growing rapidly, even running a fast sync will be around 300 GB. Last time we checked, SSD storage space, bandwidth, and time all cost money.

• Time: Depending on your connection speed, the first time sync on Ethereum Mainnet can take days, that is if you’re lucky and your connection is fast and stable enough.

• セキュリティ／メンテナンス：ノードクライアントはかなり扱いが難しく、メンテナンスも決して容易ではありません（メモリリーク、バグ、ディスクの問題など）。絶え間ない監視が必要となるほか、セキュリティ対策も自ら講じなければなりません。

• 災害復旧：ノードのクラッシュやデータベースの破損などが発生すると、ノードが数日間利用不能になる可能性があります。大規模なインフラ障害からの復旧には、最大で3週間かかる場合があります。

Quicknode サービス

Quicknode 、究極のWeb3開発Quicknode 。

Quicknode goes beyond providing a distributed global network of high-performance nodes. We offer a comprehensive suite of tools and services that support every aspect of your web3 development journey. Whether you're building decentralized applications, managing blockchain infrastructure, or scaling your projects, Quicknode ensures consistent performance, uptime, and excellent support from a community of like-minded developers.

High Speed: No need to worry about performance - Quicknode is engineered from the ground up to be the fastest Web3 provider. Not only will your apps be easier to build and run (at scale, too!), they will also be faster and more reliable (ie. more enjoyable for your users to use).

Multi-chain support: Quicknode currently supports 19 chains (including top chains like Ethereum, BNB Smart Chain [BSC], Polygon, Solana, Avalanche, Base, Optimism, Arbitrum) and 35+ networks (Mainnet, Testnet, Devnet) – and is constantly working on adding new chains, which is great if you’re building on more than one network.

QuickAlerts/WebHooks: Quicknode has support for WebHooks, and allows developers to bring Web3 smart-contract event listeners to Web2 by handling the discovery and notification of most any on-chain event in real-time. No need to run a 24/7 server for polling or WebSocket listening. Learn more about QuickAlerts here!

Testnet support: Quicknode supports nearly all major testnets (and devnets), providing developers with great flexibility for testing applications on their preferred testnet. Need testnet tokens? Use our faucet!

Multi-Client support: Quicknode supports Geth, Erigon, Reth, Nethermind for Ethereum (ETH). Requests are automatically routed to the most optimal client for best performance.

Marketplace: An entire universe of tools at your fingertips! Select from dozens of add-ons that make building super-powered dApps easier than ever. Learn more.

IPFS: Use Quicknode to upload, store, manage, and retrieve data on the IPFS network through our pinning services and dedicated gateways. Learn more.

Developer SDK: The Quicknode SDK is designed to facilitate interaction with Quicknode infrastructure. Developers can effortlessly leverage the Graph API to access a wide range of valuable data and insights, including market insights, trading data, wallet and contract transactions, cached NFT images, and much more. Learn more.

Streams: With just a few clicks, you can easily get the exact blockchain data you need, whether that's backfills or staying up to the tip. Guarantee exactly-once delivery and let us handle the rest. Learn more.

Clusters: Dedicated Clusters from Quicknode provide the highest levels of performance, reliability, and flexibility for web3 operations. They offer truly unmetered resources, ensuring seamless scaling and robust redundancy to eliminate downtime fears. With isolated environments, Dedicated Clusters protect your operations from external traffic spikes and provide predictable performance. They also offer global availability, fixed monthly costs, and compliance with web3 privacy standards, making them ideal for developers and enterprises requiring top-tier infrastructure and security. Learn more.

Quicknodeのはじめ方

Let’s get started and see how easy and painless it is to spin up your own blockchain node in just a few minutes:

手順 1：Quicknode にアクセスし、アカウントを作成して、メールアドレスの確認を行ってください。

ステップ2：プランを選択する

Step 3: Create your endpoint

完了！ノードが使用可能になりました：

Quicknode の利用

次の例では、JavaScript と Node を使用しています：

1. web3 ライブラリをインストールします：

$ npm install web3

2. Create a test script that obtains the latest block number from the Ethereum blockchain, save it as index.js and run:

var Web3 = require('web3');
var provider = 'ADD_YOUR_ETHEREUM_NODE_URL';
var web3Provider = new Web3.providers.HttpProvider(provider);
var web3 = new Web3(web3Provider);
web3.eth.getBlockNumber().then((result) => {
console.log("Latest Ethereum Block is ",result);
});
$ node index.js

3. 出力は次のようになるはずです：

Ethereum 最新のEthereum 11223600です

成功です！Ethereum のデプロイと接続が完了しました！しかも、ほんの数分で完了しました。

その他の言語やフレームワークについては、以下を選択してください クイックスタート タブを選択して、ダッシュボード上のノードのURLから、Quicknode を使用する方法に関するガイドをご覧ください。

Quicknode で、その他のガイド、チュートリアル、インサイト、Web3開発者のベストプラクティスをチェックしましょう！

ツールと機能

マーケットプレイス

Quicknode Marketplace is the “App Store” for Web3 & Blockchain tools, so you can do things like look up an Ethereum wallet balance with the RPC API, and then enrich the data with real-time token prices using the CoinGecko add-on, all with the same API endpoint. Check it out and add your app to the Marketplace today. Learn more.

ノードメトリクス

[メトリクス] タブには、最新のネットワークブロック、使用済みおよび残りのメソッド呼び出し数、ノードが使用しているクライアントが表示されるほか、そのノードを通じて行われたすべてのメソッド呼び出しがグラフで表示されます。

セキュリティ

[セキュリティ] タブでは、トークンベースの認証の有効化・無効化、JWTの設定、リファラーのホワイトリストおよびドメインマスクの設定を行うことができます。

QuickAlerts（WebHooks）

これにより、ノード用のWebhookを設定できるようになり、イベントリスナーなどにおいて高い柔軟性が得られます。Webhooks Web2で広くWebhooks 。

webhooks Quicknode webhooks 詳しく知りたい方は、QuickAlertsのページをご覧ください！

Streams

Streams データ管理Streams 、導入期間の短縮とコスト削減を実現します！

フィルタリングされたデータ - 必要な分だけお支払いください。

リアルタイムデータと履歴データ - DeFi、NFTプロジェクト、あるいはエンタープライズソリューション向けに、適切なタイミングで適切なデータを入手できます。

簡単な連携 - S3、PostgreSQL、Snowflake、webhooksなどの主要なサービスと連携できます。

Data Reliability - Ensure complete and accurate data with fork resolution, trailing options, and guaranteed delivery.

カスタマーサービス

Your paid (Discover+ and higher) Quicknode subscription includes access to our team of Web3, platform, and billing experts. Get help from the community in our Discord, open a ticket for email support, or get VIP live chat via Slack and Telegram. We’ll make sure you are happy!