As a User, I want to create a list of accounts eligible to receive my airdrop

[StanislawMazowieckiAriane]

Acceptance criteria:

• The app should take tokenId and a list of account ids as input
• The app should return an array of filtered account ids
• There is a documentation on how to use this function
• The code is unit and end2end tested
• The app is hosted on GitHub pages

flow:

1. I want to pass a list of 100 account ids and tokenId.
2. The app checks if these accounts have associated with token id OR have available auto association slots
3. The app returns a filtered list of account ids that can successfully receive my token.

How to check if account is associated with token id:

For each accountId in the list query the mirror node for balance of given token id https://mainnet-public.mirrornode.hedera.com/api/v1/tokens/0.0.3103996/balances?account.id=0.0.3854868
If balances length is more than 0, then the user is associated

How to check for available auto association slots:

This way, you can determine how many automatic associations the user has used and compare it with the max_automatic_token_associations value.

If max_automatic_token_associations is greater than count of current automatic associations, then there are still some automatic associations slots left.

Context: