api: Add litd and loop GetInfo commands for version detection

app/src/api/lit.ts

@@ -1,9 +1,11 @@
 import * as ACCOUNT from 'types/generated/lit-accounts_pb';
 import * as SESSION from 'types/generated/lit-sessions_pb';
 import * as STATUS from 'types/generated/lit-status_pb';
+import * as PROXY from 'types/generated/proxy_pb';
 import { Accounts } from 'types/generated/lit-accounts_pb_service';
 import { Sessions } from 'types/generated/lit-sessions_pb_service';
 import { Status } from 'types/generated/lit-status_pb_service';
+import { Proxy } from 'types/generated/proxy_pb_service';
 import { b64 } from 'util/strings';
 import { MAX_DATE } from 'util/constants';
 import BaseApi from './base';
@@ -21,6 +23,12 @@ class LitApi extends BaseApi<LitEvents> {
     this._grpc = grpc;
   }
 
+  async getInfo(): Promise<PROXY.GetInfoResponse.AsObject> {
+    const req = new PROXY.GetInfoRequest();
+    const res = await this._grpc.request(Proxy.GetInfo, req, this._meta);
+    return res.toObject();
+  }
+
   /**
    * call the Lit `CreateAccount` RPC and return the response
    */

app/src/api/loop.ts

@@ -24,6 +24,15 @@ class LoopApi extends BaseApi<LoopEvents> {
     this._grpc = grpc;
   }
 
+  /**
+   * call the Loop `GetInfo` RPC and return the response
+   */
+  async getInfo(): Promise<LOOP.GetInfoResponse.AsObject> {
+    const req = new LOOP.GetInfoRequest();
+    const res = await this._grpc.request(SwapClient.GetInfo, req, this._meta);
+    return res.toObject();
+  }
+
   /**
    * call the Loop `ListSwaps` RPC and return the response
    */

app/src/setupProxy.js

@@ -12,6 +12,7 @@ module.exports = function (app) {
         '/litrpc.Session',
         '/litrpc.Accounts',
         '/litrpc.Status',
+        '/litrpc.Proxy',
       ],
       {
         target: 'https://localhost:8443',