How a contract account can opt-in an ASA?

Hi @rafmc98 , Yes, Contract Accounts can Opt-In ASAs if in their TEAL logic Opt-In transactions are properly handled. This means that when you build the Stateless ASC1 you have to include Opt-In transaction checks among its approval conditions. Here you have some best practices to code an Opt-In ap…

Yes, @rafmc98 have a look at this example HTLC Stateless Smart Contract for ASA . Code overview ( (Scenario 1) OR ( ( Scenario 2 ) OR ( Scenario 3 ) ) AND Fee) ( ( Opt-in ) bnz ( ( Time Lock: ( ASA || Algos ) ) bnz ( Hash Lock: ASA Only ) ) && Fee )

Ok thanks i understand. However, a problem remains: Once the Opt-in transactions have been handled in the logic of the contract, when I send the Opt-in transaction for the contract account, a wallet is required but i don’t know which wallet to specify

You’ll be applying a LogigSig as the signature for your opt-in transaction to/from the contract account (which is the logic that must pass to approve the transaction). Using goal (from the link above): 5. (Owner) Sign the opt-in transaction using the asa-htlc.teal file as the logicSig goal clerk s…

I have to use this instruction first right? 4. (Owner) Create an unsigned opt-in transaction from/to the escrow account for specified ASA goal asset send -o asa-htlc-opt-in-escrow.utxn -a 0 --assetid $ASSET_ID -f $ESCROW_ACCOUNT -t $ESCROW_ACCOUNT -d $DATA But when i try to send it i get this o…

Yes, Step 4 generates the unsigned transaction file for you. Please confirm you successfully completed Steps 1-3. It seems odd you would get that open error in step 4 (unless you don’t have write access to create the file?). If you got Step 2 to work, I assume you have write access. That will create…

I tried to compile using ./sandbox goal clerk compile asa-htlc.teal but i get the same error: asa-htlc.teal: open asa-htlc.teal: no such file or directory So i decided to compile using SDK and i get the contract account address

Modifying my test to use sandbox commands…

See Is possible to compile a smart contract (teal program) using docker sandbox? Or i need to run a node? - #2 by fabrice

The name of the container indeed changed with the new sandbox version. It is now algorand-sandbox-algod. If you want to compile the program example.teal that is in your folder outside of the sandbox into example.teal.tok, you do: Copy example.teal to the sandbox: $ docker cp example.teal algora…

Contract account can opt-in asset?

rafmc98 March 5, 2021, 4:15pm 11

thanks @fabrice for the reply. Unfortunately I didn’t understand how to transfer a teal program from outside to sandbox, can you help me?

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Contract account can opt-in asset?

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