Integrating NAJ and Wallet Selector for Contract Interaction

[gagdiez]

Currently, NAJ has multiple objects to simplify using a wallet and interacting with a contract.

In the following weeks the Wallet Selector (WS) will become the default way to connect to NEAR.

My question is: after WS becomes mainstream, what will be the role of NAJ in interacting with contracts?

1. Will the WalletConnection object disappear? Makes sense to deprecate it since wallet selector will be the way to create a wallet object.
2. Will the Contract object disappear? This one could be modified to take a Wallet Selector instead of an Account.

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Discussion around point 2: The Contract Object.

Using the wallet selector, the current flow to interact with a contract is:

1. Select a wallet
2. Use the wallet to login
3. Use the wallet to sign transactions

For calling methods (which is what most of the people is doing from a frontend) this is kind of annoying, since you need to sign a FunctionCall for change methods, but still need to use near-api-js for calling view methods.

However, I like sticking to the simple concept of "a wallet is an object to sign transactions", with no Contract object involved.

So maybe we just remove Contract and only use the wallet selector?.