CSPR.cloud auth token support.

CHANGELOG.md

@@ -1,7 +1,11 @@
 # Changelog
 
 Changelog for `odra`.
-## [1.0.0] - 2024-05-xx
+## [1.1.0] - 2024-06-XX
+### Added
+- Support for CSPR.cloud's auth token.
+
+## [1.0.0] - 2024-05-23
 ### Added
 - Add `try_deploy` function to the `Deployer` trait, which allows deploying a contract and returning an error if the deployment fails.
 - Add `Cep18` to `odra-modules` - a standard for fungible tokens.

examples/.env.sample

@@ -8,6 +8,9 @@
 # ODRA_CASPER_LIVENET_SECRET_KEY_PATH=<path to secret_key.pem>
 
 # RPC address of the node that will be used to deploy the contracts.
+# For CSPR.cloud, you can use the following address:
+# - https://node.cspr.cloud
+# - https://node.testnet.cspr.cloud
 # ODRA_CASPER_LIVENET_NODE_ADDRESS=http://localhost:7777
 
 # Chain name of the network. Sample values:
@@ -18,3 +21,6 @@
 # Paths to the secret keys of the additional acccounts. Main secret key will be 0th account.
 # ODRA_CASPER_LIVENET_KEY_1=./keys/secret_key_1.pem
 # ODRA_CASPER_LIVENET_KEY_2=./keys/secret_key_2.pem
+
+# If using CSPR.cloud, you can set the auth token here.
+# CSPR_CLOUD_AUTH_TOKEN=

odra-casper/rpc-client/src/casper_client.rs

@@ -44,6 +44,8 @@ pub const ENV_NODE_ADDRESS: &str = "ODRA_CASPER_LIVENET_NODE_ADDRESS";
 pub const ENV_CHAIN_NAME: &str = "ODRA_CASPER_LIVENET_CHAIN_NAME";
 /// Environment variable holding a filename prefix for additional accounts.
 pub const ENV_ACCOUNT_PREFIX: &str = "ODRA_CASPER_LIVENET_KEY_";
+/// Environment variable holding cspr.cloud auth token.
+pub const ENV_CSPR_CLOUD_AUTH_TOKEN: &str = "CSPR_CLOUD_AUTH_TOKEN";
 
 fn get_env_variable(name: &str) -> String {
     std::env::var(name).unwrap_or_else(|err| {
@@ -55,10 +57,15 @@ fn get_env_variable(name: &str) -> String {
     })
 }
 
+fn get_optional_env_variable(name: &str) -> Option<String> {
+    std::env::var(name).ok()
+}
+
 /// Client for interacting with Casper node.
 pub struct CasperClient {
     node_address: String,
     chain_name: String,
+    cspr_cloud_auth_token: Option<String>,
     active_account: usize,
     secret_keys: Vec<SecretKey>,
     gas: U512
@@ -83,6 +90,7 @@ impl CasperClient {
         CasperClient {
             node_address: get_env_variable(ENV_NODE_ADDRESS),
             chain_name: get_env_variable(ENV_CHAIN_NAME),
+            cspr_cloud_auth_token: get_optional_env_variable(ENV_CSPR_CLOUD_AUTH_TOKEN),
             active_account: 0,
             secret_keys,
             gas: U512::zero()
@@ -735,7 +743,13 @@ impl CasperClient {
 
     fn post_request<T: DeserializeOwned>(&self, request: Value) -> T {
         let client = reqwest::blocking::Client::new();
-        let response = client.post(self.node_address_rpc()).json(&request).send();
+
+        let mut client = client.post(self.node_address_rpc());
+        if let Some(token) = &self.cspr_cloud_auth_token {
+            client = client.header("Authorization", token);
+        }
+        let response = client.json(&request).send();
+
         let response = match response {
             Ok(r) => r,
             Err(e) => {