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* docs: rewrite for clarity, update screenshots * docs: be less cavalier about private key, other improvements * docs: missed some spots * docs: move private key warning to beginning
109 lines
5.1 KiB
Markdown
109 lines
5.1 KiB
Markdown
In this tutorial you will learn how to:
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1. Create a Sepolia Ethereum account and obtain its private key.
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2. Obtain Sepolia ETH from faucet.
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3. Access a node on the Sepolia testnet using Infura.
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## 1. Create a Sepolia Ethereum account and obtain its private key
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> _**WARNING:**_ The private key is used elsewhere by Waku RLN registration tools to assist with membership registration in the Sepolia test network.
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> We strongly recommend that you create an account only for this purpose.
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> NEVER expose a private key that controls any valuable assets or funds.
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1. Download and install Metamask. [https://metamask.io/download/](https://metamask.io/download/)
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If you already have Metamask installed, go to step 3.
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If you encounter any issues during the Metamask setup process, please refer to the [official Metamask support page](https://support.metamask.io/hc/en-us).
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2. Create a new wallet and save your secret recovery phrase.
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3. Login to Metamask.
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4. By default, Metamask connects to the Ethereum Mainnet (dropdown menu in the top right corner).
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To publish messages to the Waku Network, you need to connect to the Sepolia test network.
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5. Switch to the Sepolia test network by selecting it from the dropdown menu. Ensure "Show test networks" is enabled.
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The same account can be used with different networks. Note that the ETH balance is different for each network (each has its own native token).
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6. To view the private key for this account, click on the three dots next to the account name and select "Account Details".
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Select "Show Private Key".
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Enter your Metamask password and click "Confirm"
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You will be shown the private key.
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## 2. Obtain Sepolia ETH from faucet
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Sepolia ETH can be obtained from different faucets.
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Three popular examples include:
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1. [sepoliafaucet.com](https://sepoliafaucet.com/) (requires an Alchemy account)
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2. [Infura Sepolia faucet](https://www.infura.io/faucet/sepolia) (requires an Infura account)
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3. [Sepolia POW faucet](https://sepolia-faucet.pk910.de/)
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> _**NOTE:**_ This list is provided for convenience. We do not necessarily recommend or guarantee the security of any of these options.
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Many faucets limit the amount of Sepolia ETH you can obtain per day.
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We include instructions for [sepolia-faucet.pk910.de](https://sepolia-faucet.pk910.de/) as an example:
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1. Enter your Sepolia Ethereum account public address, solve the Captcha and start mining.
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2. Keep the browser tab open for a while. You can see the estimated Sepolia ETH mined per hour.
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Each session is limited to a few hours.
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3. When you've mined enough Sepolia ETH (minimum of 0.05 Sepolia ETH), click on "Stop Mining" and claim your reward.
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## 3. Access a node on the Sepolia testnet using Infura
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> _**NOTE:**_ Infura provides a simple way of setting up endpoints for interaction with the Ethereum chain and the Waku RLN smart contract without having to run a dedicated Ethereum node.
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> Setting up Infura is not mandatory. Operators concerned with the centralized aspect introduced by Infura should use their own node.
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1. Sign up for Infura if you do not have an account already. [https://infura.io/register](https://infura.io/register)
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Follow the instructions to register and verify the account.
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2. Click on "Create a new API key".
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4. Select "Web 3 API", give your API key a descriptive name and click on "Create".
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You will be presented with a dashboard for the newly created key.
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4. Select "Sepolia" in the dropdown menu for Ethereum.
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Both Https and WebSockets endpoints are available. Waku requires the WebSockets endpoint.
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5. Copy this address (starting with `wss://sepolia.infura`) as needed when setting up your Waku node.
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