feat: add adminCheck query

package.json

@@ -1,6 +1,6 @@
 {
     "name": "thunderhub",
-    "version": "0.1.1",
+    "version": "0.1.2",
     "description": "",
     "main": "index.js",
     "scripts": {

src/helpers/helpers.ts

@@ -39,10 +39,7 @@ export const getAuthLnd = (auth: {
     return lnd;
 };
 
-export const getErrorMsg = (error: any[]): string => {
-    const code = error[0];
-    const msg = error[1];
-
+export const getErrorDetails = (error: any[]): string => {
     let details = '';
     if (error.length > 2) {
         if (error[2].err) {
@@ -52,5 +49,14 @@ export const getErrorMsg = (error: any[]): string => {
         }
     }
 
+    return details;
+};
+
+export const getErrorMsg = (error: any[]): string => {
+    const code = error[0];
+    const msg = error[1];
+
+    let details = getErrorDetails(error);
+
     return JSON.stringify({ code, msg, details });
 };

src/schemas/query/general/adminCheck.ts

@@ -0,0 +1,29 @@
+import { pay as payRequest } from 'ln-service';
+import { requestLimiter } from '../../../helpers/rateLimiter';
+import { GraphQLBoolean } from 'graphql';
+import { getAuthLnd, getErrorDetails } from '../../../helpers/helpers';
+import { defaultParams } from '../../../helpers/defaultProps';
+
+export const adminCheck = {
+    type: GraphQLBoolean,
+    args: {
+        ...defaultParams,
+    },
+    resolve: async (root: any, params: any, context: any) => {
+        await requestLimiter(context.ip, 'adminCheck');
+
+        const lnd = getAuthLnd(params.auth);
+
+        try {
+            await payRequest({
+                lnd,
+                request: 'admin check',
+            });
+        } catch (error) {
+            const details = getErrorDetails(error);
+            if (details.includes('invalid character in string')) return true;
+
+            throw new Error();
+        }
+    },
+};

src/schemas/query/general/index.ts

@@ -1,10 +1,12 @@
-import { getChainBalance, getPendingChainBalance } from "./chainBalance";
-import { getNetworkInfo } from "./networkInfo";
-import { getNodeInfo } from "./nodeInfo";
+import { getChainBalance, getPendingChainBalance } from './chainBalance';
+import { getNetworkInfo } from './networkInfo';
+import { getNodeInfo } from './nodeInfo';
+import { adminCheck } from './adminCheck';
 
 export const generalQueries = {
-  getChainBalance,
-  getPendingChainBalance,
-  getNetworkInfo,
-  getNodeInfo
+    getChainBalance,
+    getPendingChainBalance,
+    getNetworkInfo,
+    getNodeInfo,
+    adminCheck,
 };

src/utils/rateLimitConfig.ts

@@ -40,4 +40,5 @@ export const RateConfig: RateConfigProps = {
     chainTransactions: { max: 3, window: '1s' },
     getRoutes: { max: 3, window: '1s' },
     payViaRoute: { max: 3, window: '1s' },
+    adminCheck: { max: 3, window: '1s' },
 };