init multi services

multi-service/extract_miner_address/src/main.rs

@@ -0,0 +1,17 @@
+use fluence::{fce, WasmLoggerBuilder};
+use serde_json;
+
+fn main() {
+    WasmLoggerBuilder::new().build().ok();
+}
+
+
+#[fce]
+pub fn extract_miner_address(json_string: String) -> String {
+    let obj = serde_json::from_str::<serde_json::Value>(&json_string);
+    match obj {
+       Ok(x) => x["result"]["blockMiner"].to_string(),
+       // Ok(x) => json_string,
+        Err(_) => String::from("boo yah"),
+    }
+}