get_first_allowed_auth_descriptor

Calculates the best auth descriptor to use for the given account when calling the given operation with the given arguments. It assumes that the auth descriptors have all the required auth flags.

If the operation has an auth handler with a resolver function, it will be used to decide which auth descriptor to return. Otherwise, the first auth descriptor on the list will be returned.

If no auth descriptor is returned but ad_ids is not empty, the auth handler resolver function is to blame.

Throws if the auth handler for this operation is not found or its resolver is a function that throws.

Parameters

• op_name — the name of the operation to call
• args — the arguments for the operation
• account_id — the account that will call the operation
• ad_ids — the list of auth descriptors that can be used for authenticating

See Also

• _auth_handler — for more information on auth handlers