Asset Exchange: Corda with Corda

We will demonstrate asset exchange of a tokens in Corda_Network with tokens on Corda_Network2. Here PartyA (CORDA_PORT=10006) and PartyB (CORDA_PORT=10009) in Corda_Network correspond to PartyA (CORDA_PORT=30006) and PartyB (CORDA_PORT=30009) in Corda_Network2 respectively. Following are the step-by-step asset exchange process:

Notes
The hash used in following steps can be replaced by any valid `SHA256` hash.

Navigate to samples/corda/corda-simple-application folder.
Run the following to verify the status of the tokens owned by PartyA and PartyB in the Corda_Network and Corda_Network2:
```
./scripts/getAssetStatus.sh 2
```

Generate Secret-Hash Pair using following command (prints hash in base64):

./clients/build/install/clients/bin/clients utils hash --hash-fn=SHA256 -s secrettext

Run the following to trigger PartyA locking 30 units of token type t1 for PartyB in Corda_Network for 60 mins:
```
CORDA_PORT=10006 ./clients/build/install/clients/bin/clients lock-asset --fungible --hashBase64=ivHErp1x4bJDKuRo6L5bApO/DdoyD/dG0mAZrzLZEIs= --timeout=3600 --recipient="O=PartyB,L=London,C=GB" --param=t1:30
```
Note the contract-id displayed after successful execution of the command, will be used in next steps. The output containing contract-id would like this:
```
HTLC Lock State created with contract ID Right(b=10448674_80d2bee7-5a5d-45df-b14e-60bac4ba1bf3).
```
contract-id is the alphanumeric text (with underscore and hyphens) after b= within parenthesis. Let's denote it <contract-id-1>.

Run the following to verify PartyA's lock (can be verified by both parties):

CORDA_PORT=10009 ./clients/build/install/clients/bin/clients is-asset-locked --contract-id=<contract-id-1>

Run the following to trigger PartyB locking 50 units of token type t2 for PartyA in Corda_Network2 for 30 mins:
```
CORDA_PORT=30009 ./clients/build/install/clients/bin/clients lock-asset --fungible --hashBase64=ivHErp1x4bJDKuRo6L5bApO/DdoyD/dG0mAZrzLZEIs= --timeout=1800 --recipient="O=PartyA,L=London,C=GB" --param=t2:50
```
Note the contract-id displayed after successful execution of the command, will be used in next steps. Let's denote it <contract-id-2>.

Run the following to verify PartyB's lock (can be verified by both parties):

CORDA_PORT=30006 ./clients/build/install/clients/bin/clients is-asset-locked --contract-id=<contract-id-2>

Run the following to trigger PartyA's claim for 50 units of token type t2 locked by PartyB in Corda_Network2:
```
CORDA_PORT=30006 ./clients/build/install/clients/bin/clients claim-asset --secret=secrettext --contract-id=<contract-id-2>
```
PartyB can see its node's logs to get the revealed hash preimage, and use it to claim the bond in the Fabric network.

Run the following to trigger PartyB's claim for 30 units of token type t1 locked by PartyA in Corda_Network:

CORDA_PORT=10009 ./clients/build/install/clients/bin/clients claim-asset --secret=secrettext --contract-id=<contract-id-1>

Run the following to verify the status of the tokens owned by PartyA and PartyB in the Corda_Network and Corda_Network2:
```
./scripts/getAssetStatus.sh 2
```

The above steps complete a successful asset exchange between two Corda networks. In addition to the above commands, following commands can be run if specified timeout has expired and the locked asset remains unclaimed.

If PartyA wants to unlock the token t1:30 asset, run the following to trigger PartyA's re-claim in Corda_Network:
```
CORDA_PORT=10006 ./clients/build/install/clients/bin/clients unlock-asset --contract-id=<contract-id-1>
```
If PartyB wants to unlock the token t2:50 asset, run the following to trigger PartyB's re-claim in Corda_Network2:
```
CORDA_PORT=30009 ./clients/build/install/clients/bin/clients unlock-asset --contract-id=<contract-id-2>
```