generate new key, new client, get address

Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "sdk_client"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+name = "sdk_client"
+crate-type = ["cdylib"]
+
+[dependencies]
+sp_backend = { git = "https://github.com/Sosthene00/sp-backend", branch = "sp_client" }
+anyhow = "1.0"
+serde = { version = "1.0.188", features = ["derive"] }
+serde_json = "1.0"
+wasm-bindgen = "0.2.91"
+getrandom = { version="0.2.12", features = ["js"] }
+wasm-logger = "0.2.0"
+rand = "0.8.5"
+log = "0.4.6"
+
+[dev-dependencies]
+wasm-bindgen-test = "0.3"

src/api.rs

@@ -0,0 +1,48 @@
+use rand::Rng;
+
+use wasm_bindgen::prelude::*;
+
+use sp_backend::spclient::{derive_keys_from_seed, SpClient};
+use sp_backend::silentpayments::sending::SilentPaymentAddress;
+use sp_backend::spclient::SpendKey;
+
+const IS_TESTNET: bool = true;
+
+#[wasm_bindgen]
+pub fn setup() {
+    wasm_logger::init(wasm_logger::Config::default());
+}
+
+#[wasm_bindgen]
+pub fn new_key() -> Vec<u8> {
+    let mut seed = [0u8; 64];
+    rand::thread_rng().fill(&mut seed);
+    seed.to_vec()
+}
+
+#[wasm_bindgen]
+pub fn clear_key(key: Vec<u8>) {
+    for mut b in key {
+        b = 0;
+        assert!(b == 0u8);
+    }
+}
+
+#[wasm_bindgen]
+pub fn generate_sp_wallet_from_key(birthday: u32, is_testnet: bool) -> Option<String> {
+    let mut seed = [0u8;64];
+    seed.copy_from_slice(&new_key());
+    let (scan_sk, spend_sk) = derive_keys_from_seed(&seed, is_testnet).ok()?;
+    let sp_client = SpClient::new("".to_owned(), scan_sk, SpendKey::Secret(spend_sk), None, birthday, IS_TESTNET).ok()?;
+    log::info!(
+        "Created client for sp with address: {}",
+        sp_client.get_receiving_address()
+    );
+    serde_json::to_string(&sp_client).ok()
+}
+
+#[wasm_bindgen]
+pub fn get_receiving_address(sp_client: String) -> String {
+    let sp_client: SpClient = serde_json::from_str(&sp_client).unwrap();
+    sp_client.get_receiving_address()
+}

src/lib.rs

@@ -0,0 +1 @@
+pub mod api;