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README.md

Quick Guide how to run examples

In this directory you can find examples of how to use the spv-wallet-go-client package.

Before you run

Pre-requisites

  • You have access to the spv-wallet non-custodial wallet (running locally or remotely).
  • You have installed this package on your machine (go install on this project's root directory).

Concerning the keys

  • The ExampleAdminKey defined in example_keys.go is the default one from spv-wallet-web-backend repository
    • If in your current spv-wallet instance you have a different adminKey, you should replace the one in example_keys with the one you have.
  • The ExampleXPub and ExampleXPriv are just placeholders, which won't work.
    • You should replace them by newly generated ones using task generate_keys,
    • ... or use your actual keys if you have them (don't use the keys which are already added to another wallet).

Additionally, to make it work properly, you should adjust the ExamplePaymail to align with your domains configuration in the spv-wallet instance.

Proposed order of executing examples

  1. generate_keys - generates new keys (you can copy them to example_keys if you want to use them in next examples)
  2. admin_add_user - adds a new user (more precisely adds ExampleXPub and then ExamplePaymail to the wallet)

To fully experience the next steps, it would be beneficial to transfer some funds to your ExamplePaymail. This ensures the examples run smoothly by demonstrating the creation of a transaction with an actual balance. You can transfer funds to your ExamplePaymail using a Bitcoin SV wallet application such as HandCash or any other that supports Paymail.

  1. get_balance - checks the balance - if you've transferred funds to your ExamplePaymail, you should see them here
  2. create_transaction - creates a transaction (you can adjust the outputs to your needs)
  3. list_transactions - lists all transactions and with example filtering
  4. send_op_return - sends an OP_RETURN transaction
  5. admin_remove_user - removes the user

In addition to the above, there are additional examples showing how to use the client from a developer perspective:

  • handle_exceptions - presents how to "catch" exceptions which the client can throw

Util examples

  1. xpriv_from_mnemonic - allows you to generate/extract an xPriv key from a mnemonic phrase. To you use it you just need to replace the mnemonic variable with your own mnemonic phrase.
  2. xpub_from_xpriv - allows you to generate an xPub key from an xPriv key. To you use it you just need to replace the xPriv variable with your own xPriv key.
  3. generate_totp - allows you to generate and check validity of a TOTP code for client xPriv and a contact's PKI

How to run an example

The examples are written in Go and can be run by:

cd examples
task name_of_the_example

See the examples/Taskfile.yml for the list of available examples and scripts