48 lines
1.1 KiB
Markdown
48 lines
1.1 KiB
Markdown
# go-libp2p-asn-util
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[](http://protocol.ai)
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[](http://github.com/libp2p/libp2p)
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A library to lookup the ASN(Autonomous System Number) for an IP address. It uses the IPv6 to ASN database downloaded from https://iptoasn.com/.
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Supports ONLY IPv6 addresses for now.
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## Table of Contents
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- [Install](#install)
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- [Usage](#usage)
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- [Documentation](#documentation)
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- [Contribute](#contribute)
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- [License](#license)
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## Install
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```
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go get github.com/libp2p/go-libp2p-asn-util
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```
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## Usage
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```go
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import (
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asn "github.com/libp2p/go-libp2p-asn-util"
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)
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func main() {
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store, err := asn.NewAsnStore()
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asNumber,err := store.AsnForIP(net.ParseIP("2a03:2880:f003:c07:face:b00c::2"))
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}
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```
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## Contribute
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Feel free to join in. All welcome. Open an [issue](https://github.com/libp2p/go-libp2p-asn/issues)!
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This repository falls under the IPFS [Code of Conduct](https://github.com/ipfs/community/blob/master/code-of-conduct.md).
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## License
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MIT
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---
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