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82. Umi: Metaplex's Modular Client Framework

Pluggable interfaces for signers, RPC, and serializers.

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Metaplex Umi is a modular JavaScript framework for interacting with on-chain programs, defining unified interfaces for signers, HTTP downloaders, and keypairs.

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Check your understanding

1. What is Metaplex Umi?
A modular framework providing unified interfaces for signers, RPCs, and programsA new Solana tokenA Rust compilerA consensus engine
2. What is an IdentitySigner in Umi?
A pluggable interface representing the default fee payer and signing walletA hardware tokenAn on-chain programA validator

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