Creating, funding, and transferring from a new purse can be done in just a few lines of code. Using the Casper JS SDK, the below walk-through explains each part of the purse creation process, including deploying and calling the contract on-chain.

Create and Fund New Purse

The following steps walk you through creating and funding a new purse.

1. Create a Purse
   This step creates a new purse under the account context.

   const purse = await casper.createPurse();

2. Fund Purse

const source = await casper.getAccountMainPurse();
const deployHash = await casper.transferFromPurseToPurse(source, purse, amount);
await casper.waitForDeployProcessed(deployHash);

3. store purse into contract named_keys:

const namedKeys = {
  "second_purse": purse.toKey(),
};

4. AccountHash

const targetAccountHash = casper.utils.accountHash("account-hash-d9758b25962f4cba82ba0047389af97a70acb7df43b391f9ffb293801bea5061");

5. Transfer from funded purse to target public key

const sourcePurse = namedKeys["second_purse"];
const deployHash = await casper.transferFromPurseToAccount(
    sourcePurse,
    targetAccountHash,
    amount
);
await casper.waitForDeployProcessed(deployHash);

Installing the Contract

1. Install the contract and fund with 1000 CSPR:

casper-client put-deploy \
--chain-name casper-test \
--node-address http://localhost:11101 \
--payment-amount 20000000000 \
--session-path /path/to/contract/target/wasm32-unknown-unknown/release/contract.wasm \
--secret-key /path/to/secret_key.pem
--session-arg "amount:U512='1000000000000'" \

2. Call the transfer_amount entrypoint and transfer 123 CSPR to target account:

casper-client put-deploy --chain-name casper-test \
--node-address http://localhost:11101 \
--secret-key /path/to/secret_key.pem \
--session-hash "hash-4f3de8e812f8bfee3e088461b325b5136d69307fc62aafa034298e16b818e332" \
--session-entry-point "transfer_amount"  \
--session-arg "account_hash:key='account-hash-d9758b25962f4cba82ba0047389af97a70acb7df43b391f9ffb293801bea5061'" \
--payment-amount 3000000000
--session-arg "amount:U512='123000000000'" \

The above steps will create and fund a new purse, and upon calling the transfer_amount entrypoint, transfers the designated amount to the target account hash.

If you have any concerns, questions, or issues, please submit a request to our support team here:

https://support.casperlabs.io/hc/en-gb/requests/new