Function approveInterface

approveInterface(
    rpc: Rpc,
    payer: Signer,
    tokenAccount: PublicKey,
    mint: PublicKey,
    delegate: PublicKey,
    amount: number | bigint | BN,
    owner: Signer,
    confirmOptions?: ConfirmOptions,
    programId?: PublicKey,
    options?: InterfaceOptions,
    decimals?: number,
): Promise<string>
Approve a delegate for an associated token account.

Supports light-token, SPL, and Token-2022 mints. For light-token mints, loads cold accounts if needed before sending the approve instruction.
Parameters
- rpc: Rpc
  RPC connection
- payer: Signer
  Fee payer (signer)
- tokenAccount: PublicKey
  ATA address
- mint: PublicKey
  Mint address
- delegate: PublicKey
  Delegate to approve
- amount: number | bigint | BN
  Amount to delegate
- owner: Signer
  Owner of the token account (signer)
- OptionalconfirmOptions: ConfirmOptions
  Optional confirm options
- programId: PublicKey = LIGHT_TOKEN_PROGRAM_ID
  Token program ID (default: LIGHT_TOKEN_PROGRAM_ID)
- Optionaloptions: InterfaceOptions
  Optional interface options (wrap is nested here)
- Optionaldecimals: number
Returns Promise<string>
Transaction signature

Remarks
For light-token mints, all cold (compressed) balances are loaded into the hot ATA, not just the delegation amount. The amount parameter only controls the delegate's spending limit.
- Defined in v3/actions/approve-interface.ts:48