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Sequence Indexer is a simple API to query any blockchain token and NFT data. Below are instructions on how to integrate the Sequence Indexer API into your Webapps, Games, and backends. In case you missed it, please also see the Indexer Overview.

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インストール方法

The Sequence Indexer is built as a HTTP API with RPC endpoints that you may call directly from your Webapp, Game or server backend. Below you’ll find information on the RPC endpoint schema with sample curl commands, along with examples in both Javascript/Typescript and Go. Web / node.js および Go 用のSDKをご用意しています。 他の言語でIndexerと連携したい場合は、下記のAPIリファレンスに従ってHTTPリクエストを実装してください。 また、TypescriptクライアントのソースコードもIndexer APIクライアントの参考実装としてご覧いただけます。

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Web / node.js Installation

npm install 0xsequence ethers
This code requires an API Access Key from Sequence Builder.
import { SequenceIndexer } from '@0xsequence/indexer'

// see https://docs.sequence.xyzhttps://status.sequence.info for list of
// indexer hosts for the chain you'd like to query
const indexer = new SequenceIndexer('https://mainnet-indexer.sequence.app', 'AQAAAAAAAF_JvPALhBthL7VGn6jV0YDqaFY')

// see examples below for the kinds of queries you can make
const tokenBalances = await indexer.getTokenBalances(...)
NOTE: if you’re using @0xsequence/indexer from node.js, we recommend using node v18.x or newer.

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Go Installation

Terminal
go get -u github.com/0xsequence/go-sequence@latest
then in your app,
Go
import (
	"github.com/0xsequence/go-sequence/indexer"
)

// see https://docs.sequence.xyzhttps://status.sequence.info for list of
// indexer hosts for the chain you'd like to query
seqIndexer := indexer.NewIndexer("https://polygon-indexer.sequence.app", "AQAAAAAAAF_JvPALhBthL7VGn6jV0YDqaFY")

// see examples below for the kinds of queries you can make
accountAddress := "ACCOUNT_ADDRESS"
includeMetadata := true
metadataOptions := indexer.MetadataOptions{
	VerifiedOnly: true,
}

_, tokenBalances, err := seqIndexer.GetTokenBalances(context.Background(), &accountAddress, nil, nil, &includeMetadata, &metadataOptions, nil, nil)

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Unity or Unreal Installation

Sequence Indexerは、それぞれのSequence UnityおよびSequence Unreal SDKに直接統合されています。
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