mirror of https://github.com/status-im/go-waku.git
31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
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# Using the `rln` example application
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## Background
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The `rln` application is a basic example app that demonstrates how to subscribe to and publish messages using Waku Relay with RLN
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## Preparation
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Edit `main.go` and set proper values to these constants and variables:
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```go
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const ethClientAddress = "wss://sepolia.infura.io/ws/v3/API_KEY_GOES_HERE"
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const ethPrivateKey = "PRIVATE_KEY_GOES_HERE"
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const contractAddress = "0x9C09146844C1326c2dBC41c451766C7138F88155"
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const credentialsPath = ""
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const credentialsPassword = ""
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var contentTopic = protocol.NewContentTopic("rln", 1, "test", "proto").String()
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var pubsubTopic = protocol.DefaultPubsubTopic()
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```
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The private key used here should contain enough Sepolia ETH to register on the contract (0.001 ETH). An ethereum client address is required as well. After updating these values, execute `make`
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## Basic application usage
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To start the `rln` application run the following from the project directory
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```
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./build/rln
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```
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The app will send a "Hello world!" through the waku relay protocol every 2 seconds and display it on the terminal as soon as it receives the message. Only a single message per epoch is allowed, so 4 out of 5 messages will be considered spam.
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