Add circulating supply endpoint

README.md

@@ -710,6 +710,18 @@ curl  -w "\n" -X GET "http://127.0.0.1:8081/api/emission"
 
 Emission only works when the emission monitoring thread is enabled.
 
+#### api/circulating\_supply
+
+```bash
+curl  -w "\n" -X GET "http://127.0.0.1:8081/api/circulating_supply"
+```
+
+```
+15606500
+```
+
+Circulating supply only works when the emission monitoring thread is enabled.
+
 #### api/version
 
 ```bash

main.cpp

@@ -6,6 +6,7 @@
 #include "ext/crow/crow.h"
 #include "src/CmdLineOptions.h"
 #include "src/MicroCore.h"
+#include "src/CurrentBlockchainStatus.h"
 
 #include <fstream>
 #include <regex>
@@ -730,10 +731,14 @@ main(int ac, const char* av[])
         ([&]() {
 
             mylok::jsonresponse r{lokblocks.json_emission()};
-
             return r;
         });
 
+        CROW_ROUTE(app, "/api/circulating_supply") ([&]() {
+            std::string result = std::to_string(lokeg::CurrentBlockchainStatus::circulating_supply);
+            return std::move(result);
+        });
+
         CROW_ROUTE(app, "/api/outputs").methods("GET"_method)
         ([&](const crow::request &req) {