Add voyager verification to the verify command

CHANGELOG.md

@@ -35,6 +35,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `--fee-token` flag - `strk` will be used by default
 
+### Cast
+
+#### Added
+
+- Voyager API support for sncast `verify` subcommand 
+
 ## [0.34.0] - 2024-11-26
 
 ### Forge

crates/sncast/src/main.rs

@@ -624,11 +624,13 @@ async fn run_async_command(
             )
             .expect("Failed to build contract");
             let result = starknet_commands::verify::verify(
-                verify.contract_address,
+                verify.contract_address_or_class_hash.contract_address,
+                verify.contract_address_or_class_hash.class_hash,
                 verify.contract_name,
                 verify.verifier,
                 verify.network,
                 verify.confirm_verification,
+                verify.custom_base_api_url,
                 &package_metadata.manifest_path,
                 &artifacts,
             )

crates/sncast/src/starknet_commands/verify/base.rs

@@ -0,0 +1,95 @@
+use anyhow::{anyhow, Context, Result};
+use async_trait::async_trait;
+use camino::Utf8PathBuf;
+use reqwest::StatusCode;
+use serde::Serialize;
+use sncast::response::structs::VerifyResponse;
+use starknet::core::types::Felt;
+use std::ffi::OsStr;
+use walkdir::WalkDir;
+
+fn read_workspace_files(
+    workspace_dir: &Utf8PathBuf,
+) -> Result<serde_json::Map<String, serde_json::Value>> {
+    // Read all files name along with their contents in a JSON format
+    // in the workspace dir recursively
+    // key is the file name and value is the file content
+    let mut file_data = serde_json::Map::new();
+
+    // Recursively read files and their contents in workspace directory
+    for entry in WalkDir::new(workspace_dir.clone()).follow_links(true) {
+        let entry = entry?;
+        let path = entry.path();
+        if path.is_file() {
+            if let Some(extension) = path.extension() {
+                if extension == OsStr::new("cairo") || extension == OsStr::new("toml") {
+                    let relative_path = path.strip_prefix(workspace_dir.clone())?;
+                    let file_content = std::fs::read_to_string(path)?;
+                    file_data.insert(
+                        relative_path.to_string_lossy().into_owned(),
+                        serde_json::Value::String(file_content),
+                    );
+                }
+            }
+        }
+    }
+    Ok(file_data)
+}
+
+async fn send_verification_request(
+    url: String,
+    payload: VerificationPayload,
+) -> Result<VerifyResponse> {
+    let json_payload = serde_json::to_string(&payload)?;
+    let client = reqwest::Client::new();
+    let api_res = client
+        .post(url)
+        .header("Content-Type", "application/json")
+        .body(json_payload)
+        .send()
+        .await
+        .context("Failed to send request to verifier API")?;
+
+    if api_res.status() == StatusCode::OK {
+        let message = api_res
+            .text()
+            .await
+            .context("Failed to read verifier API response")?;
+        Ok(VerifyResponse { message })
+    } else {
+        let message = api_res.text().await.context("Failed to verify contract")?;
+        Err(anyhow!(message))
+    }
+}
+
+#[async_trait]
+pub trait VerificationInterface {
+    fn explorer_url(&self) -> String;
+
+    async fn verify(
+        &self,
+        workspace_dir: Utf8PathBuf,
+        contract_address: Option<Felt>,
+        class_hash: Option<Felt>,
+        contract_name: String,
+    ) -> Result<VerifyResponse> {
+        let file_data = read_workspace_files(&workspace_dir)?;
+        let source_code = serde_json::Value::Object(file_data);
+        let payload = VerificationPayload {
+            contract_name,
+            contract_address,
+            class_hash,
+            source_code,
+        };
+        let url = self.explorer_url();
+        send_verification_request(url, payload).await
+    }
+}
+
+#[derive(Serialize, Debug)]
+pub struct VerificationPayload {
+    pub contract_name: String,
+    pub contract_address: Option<Felt>,
+    pub class_hash: Option<Felt>,
+    pub source_code: serde_json::Value,
+}