Coinbase-SDK V0.0.6 release (#68)

### What changed? Why?

- Ability to create wallets backed by server signers and transfer with
them
- Changed save_wallet to save_seed
- Changed load_wallets to load_seed and moved at wallet level

#### Qualified Impact
<!-- Please evaluate what components could be affected and what the
impact would be if there was an
error. How would this error be resolved, e.g. rollback a deploy, push a
new fix, disable a feature
flag, etc... -->

---------

Co-authored-by: yuga-cb <82042350+yuga-cb@users.noreply.github.com>
Co-authored-by: Alexander Stone <alex.stone@coinbase.com>
Co-authored-by: Yuga Cohler <yuga.cohler@coinbase.com>
Co-authored-by: John-peterson-coinbase <98187317+John-peterson-coinbase@users.noreply.github.com>

.gitignore

@@ -3,4 +3,5 @@ Gemfile.lock
 lib/**/.DS_Store
 .idea
 .DS_Store
-seeds.json
+seeds.json
+coverage

CHANGELOG.md

@@ -9,12 +9,25 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Trade
 
+## [0.0.6] - 2024-06-03
+
+### Added
+
+- Server-Signer feature: ability to create wallets backed by server signers and create transfers with them.
+
+### Changed
+
+- Changed save_wallet to save_seed
+- Changed load_wallets to load_seed and moved at wallet level
+
 ## [0.0.5] - 2024-05-20
 
 ### Added
 
 - `wallets` method on the User class
 - Ability to hydrate wallets (i.e. set the seed on it)
+- Ability to create wallets backed by server signers.
+    - Note: External developers cannot use this until we enable them to create and run them.
 
 ## [0.0.4] - 2024-05-13
 

Makefile

@@ -10,6 +10,10 @@ lint:
 test:
 	bundle exec rake test
 
+.PHONY: test-coverage
+test-coverage:
+	open coverage/index.html
+
 .PHONY: repl
 repl:
 	bundle exec bin/repl

README.md

@@ -162,6 +162,11 @@ This will allow you to [authenticate](./authentication.md) with the Platform API
 u = Coinbase.default_user
 ```
 
+If you are using a CDP Server-Signer to manage your private keys, enable it with
+
+```ruby
+Coinbase.configuration.use_server_signer=true
+```
 Now, create a wallet from the User. Wallets are created with a single default address.
 
 ```ruby
@@ -227,14 +232,17 @@ store(data.to_hash)
 
 For more information on wallet persistence, see [the documentation on wallets](./wallets.md#persisting-a-wallet).
 
-Alternatively, you can use the `save_wallet_locally!` function to persist wallets on your local file system. This is a
+Alternatively, you can use the `save_seed!` function to persist a wallet's seed to a local file. This is a
 convenience function purely for testing purposes, and should not be considered a secure method of persisting wallets.
 
 ```ruby
-# Set encrypt: true to encrypt the wallet export data with your CDP API key.
-u.save_wallet_locally!(w1, encrypt: true)
+# Pick a file to which to save your wallet seed.
+file_path = 'my_seed.json'
 
-puts "Wallet #{w1.id} successfully saved to local file storage."
+# Set encrypt: true to encrypt the wallet seed with your CDP API key.
+w1.save_seed!(file_path, encrypt: true)
+
+puts "Seed for wallet #{w1.id} successfully saved to #{file_path}."
 ```
 
 ## Re-instantiating a Wallet
@@ -250,17 +258,16 @@ fetched_data = fetch(w1.id)
 w3 = u.import_wallet(fetched_data)
 ```
 
-If you used the `save_wallet_locally!` function to persist wallets on your local file system, then you can use the
-`load_wallets_from_local` function re-instantiate the wallets.
+If you used the `save_seed!` function to persist a wallet's seed to a local file, then you can first fetch
+the unhydrated wallet from the server, and then use the `load_seed` method to re-instantiate the wallet.
 
 ```ruby
-# wallets will contain a Hash from wallet ID to wallet.
-wallets = u.load_wallets_from_local
-
-puts "Wallets successfully loaded from local file storage."
+# Get the unhydrated wallet from the server.
+w4 = u.wallet(w1.id)
 
-# w4 will be equivalent to w1 and w3.
-w4 = wallets[w1.id]
+# You can now load the seed into the wallet from the local file.
+# w4 will be equivalent to w1.
+w4.load_seed(file_path)
 ```
 
 ## Development

coinbase.gemspec

@@ -30,6 +30,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rspec'
   # Pin to a specific version of RuboCop to ensure consistent linting.
   spec.add_development_dependency 'rubocop', '1.63.1'
+  spec.add_development_dependency 'simplecov'
   # Pin to a specific version of YARD to ensure consistent documentation generation.
   spec.add_development_dependency 'yard', '0.9.36'
   spec.add_development_dependency 'yard-markdown'