diff --git a/multi-service/block_getter/Cargo.toml b/multi-service/block_getter/Cargo.toml
index 2e58e6c..2523201 100644
--- a/multi-service/block_getter/Cargo.toml
+++ b/multi-service/block_getter/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-fluence = { version = "0.2.18", features = ["logger"]}
+fluence = { version = "=0.3.3", features = ["logger"] }
 log = "0.4.8"
 serde_json = "1.0.64"
 fstrings = "0.2.3"
diff --git a/multi-service/block_getter/src/eth_block_getters.rs b/multi-service/block_getter/src/eth_block_getters.rs
index 86a8e1d..646b727 100644
--- a/multi-service/block_getter/src/eth_block_getters.rs
+++ b/multi-service/block_getter/src/eth_block_getters.rs
@@ -16,21 +16,42 @@
 
 use crate::curl_request;
 use fluence::fce;
+use fluence::MountedBinaryResult;
+
+
+fn result_to_string(result:MountedBinaryResult) -> String {
+    if result.is_success() {
+        return String::from_utf8(result.stdout).expect("Found invalid UTF-8");
+    }
+    String::from_utf8(result.stderr).expect("Found invalid UTF-8")
+}
 
 #[fce]
 pub fn get_latest_block(api_key: String) -> String {
-    let url =
-        f!("https://api.etherscan.io/api?module=proxy&action=eth_blockNumber&apikey={api_key}");
+    let url = f!("https://api.etherscan.io/api?module=proxy&action=eth_blockNumber&apikey={api_key}");
+    let header = "-d \"\"";
 
-    let response: String = unsafe { curl_request(url) };
-    response
+    let curl_cmd:Vec<String> = vec![header.into(), url.into()];
+    let response = unsafe { curl_request(curl_cmd) };
+    result_to_string(response)
+
+    /*
+    let raw_string = result_to_string(response);
+    let obj = serde_json::from_str(&raw_string);
+    let res = match obj {
+        Ok(x) => x["result"],
+        Err(_) => "",
+    };
+    String::from(res)
+    */
 }
 
 #[fce]
-pub fn get_block(api_key: String, block_number: u64) -> String {
-    // let block_num = format!("{:X}", block_number);
+pub fn get_block(api_key: String, block_number: u32) -> String {
     let url = f!("https://api.etherscan.io/api?module=block&action=getblockreward&blockno={block_number}&apikey={api_key}");
+    let header = "-d \"\"";
 
-    let response: String = unsafe { curl_request(url) };
-    response
+    let curl_cmd:Vec<String> = vec![header.into(), url];
+    let response = unsafe { curl_request(curl_cmd) };
+    result_to_string(response)
 }
diff --git a/multi-service/block_getter/src/main.rs b/multi-service/block_getter/src/main.rs
index 9f6a6e5..db4470e 100644
--- a/multi-service/block_getter/src/main.rs
+++ b/multi-service/block_getter/src/main.rs
@@ -17,6 +17,7 @@
 extern crate fstrings;
 
 use fluence::{fce, WasmLoggerBuilder};
+use fluence::MountedBinaryResult as Result;
 
 mod eth_block_getters;
 
@@ -27,5 +28,6 @@ fn main() {
 #[fce]
 #[link(wasm_import_module = "curl_adapter")]
 extern "C" {
-    pub fn curl_request(url: String) -> String;
+    pub fn curl_request(curl_cmd: Vec<String>) -> Result;
 }
+