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single_node.md

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Single node setup

In this document we will explain how you can setup a local single node instance of the bridge and develop against it.

Step 1: Create a Twin on tfchain

Make sure tfchain is up and running.

Create a twin on your local chain:

Step 2: Generate a bridge account

./stellar-utils generate plain

New Account address: GDW4PXQMKRX3TMF5STCLNXPB4JQSKF543B7MDVKCCBD7JYP7RNAOF46T
New Account secret: SCA77JSUGAA45HGNG7RRUIMHIQGUHKLFB4JCEAO6WWGMBQACIKJSBCO2

The default tfchain bridge validator key is:

  • quarter between satisfy three sphere six soda boss cute decade old trend

Now run the bridge:

cd tfchain_bridge

Now open a first terminal pane and execute:

./tfchain_bridge --secret SCA77JSUGAA45HGNG7RRUIMHIQGUHKLFB4JCEAO6WWGMBQACIKJSBCO2 --tfchainurl ws://localhost:9944 --tfchainseed "quarter between satisfy three sphere six soda boss cute decade old trend" --bridgewallet GDW4PXQMKRX3TMF5STCLNXPB4JQSKF543B7MDVKCCBD7JYP7RNAOF46T --persistency ./signer1.json --network testnet

If all goes well, you should see something similar to following output:

5:25PM INF required signature count 0
5:25PM INF account GDW4PXQMKRX3TMF5STCLNXPB4JQSKF543B7MDVKCCBD7JYP7RNAOF46T loaded with sequence number 4328279062347778
5:25PM INF starting stellar subscription...
5:25PM INF starting tfchain subscription...
5:25PM INF awaiting signal
5:25PM INF fetching stellar transactions account=GDW4PXQMKRX3TMF5STCLNXPB4JQSKF543B7MDVKCCBD7JYP7RNAOF46T cursor=0 horizon=https://horizon-testnet.stellar.org/
5:25PM INF fetching events for blockheight ID=6
5:25PM INF received transaction on bridge stellar account hash=7a8c181f5e738ffeb68dda6518adf3ce4cf99777a4bd98a43dfed38ca0f99912
5:25PM INF received transaction on bridge stellar account hash=a8609616ac84f57eeadae8e6cde88025d0ab2ecbe8f1c70c7162b7548f20ae9a
5:25PM INF received transaction on bridge stellar account hash=a2eef986828038570a56314801626ee53e141408f0fc3c3eb96cca62fae81436
5:25PM INF fetching stellar transactions account=GDW4PXQMKRX3TMF5STCLNXPB4JQSKF543B7MDVKCCBD7JYP7RNAOF46T cursor=4328296242225152 horizon=https://horizon-testnet.stellar.org/
5:25PM INF fetching events for blockheight ID=7
5:25PM INF fetching events for blockheight ID=8
5:25PM INF fetching stellar transactions account=GDW4PXQMKRX3TMF5STCLNXPB4JQSKF543B7MDVKCCBD7JYP7RNAOF46T cursor=4328296242225152 horizon=https://horizon-testnet.stellar.org/
5:25PM INF fetching events for blockheight ID=9
5:25PM INF fetching stellar transactions account=GDW4PXQMKRX3TMF5STCLNXPB4JQSKF543B7MDVKCCBD7JYP7RNAOF46T cursor=4328296242225152 horizon=https://horizon-testnet.stellar.org/
5:25PM INF fetching events for blockheight ID=10
5:25PM INF fetching events for blockheight ID=11

Step 3: Setup a personal wallet

First generate another account which you can use to interact with the bridge:

Use the same tool we used above to generate the keypairs: tool

./stellar-utils generate plain

New Account address: GCNFIHEN7LQZ4BVA4ADXIXEHPUXSMM6WHNKRR6MD3BYOBJZ3ADUW44TK
New Account secret: SDGRCA63GSP4MSASFAWX5FORTS6ATQMK63YL6ZMF7YIFEJVBTLJDJA3M

Now, request some Testnet TFT by doing a swap on the stellar dex using the same tool:

./stellar-utils faucet --secret SDGRCA63GSP4MSASFAWX5FORTS6ATQMK63YL6ZMF7YIFEJVBTLJDJA3M

Given this command did not give an error, your account you just generated now has 100 TFT.

Step 4: Deposit TFT to the bridge

Make sure that

  • Tfchain is running
  • The bridge daemons are running
  • You generated a personal wallet and have TFT on it

You can start doing a deposit on the bridge using the same tool again

First identify the bridge master address you generated above, in this example the address is: GAYJSBPBQ3J32CZZ72OM3GZP646KSVD3V5QB3WBJSSGPYHYS5MZSS4Z6.

Now construct a memo message indicating which twin you will deposit to: "twin_TWINID" (you should have created a twin in the above steps).

./stellar-utils transfer GAYJSBPBQ3J32CZZ72OM3GZP646KSVD3V5QB3WBJSSGPYHYS5MZSS4Z6 50 "twin_1" --secret SDGRCA63GSP4MSASFAWX5FORTS6ATQMK63YL6ZMF7YIFEJVBTLJDJA3M

Now you should have received the tokens minus the depositfee on your account on tfchain (the default depositfee is 10 TFT).