feat: add isGateway method (#1046)

Author: Cafe137

src/bee.ts

@@ -1282,6 +1282,18 @@ export class Bee {
     return true
   }
 
+  /**
+   * Checks the `/gateway` endpoint to see if the remote API is a gateway.
+   *
+   * Do note that this is not a standard way to check for gateway nodes,
+   * but some of the gateway tooling expose this endpoint.
+   *
+   * @param options
+   */
+  async isGateway(options?: BeeRequestOptions): Promise<boolean> {
+    return status.isGateway(this.getRequestOptionsForCall(options))
+  }
+
   // Legacy debug API
 
   async getNodeAddresses(options?: BeeRequestOptions): Promise<NodeAddresses> {

src/modules/status.ts

@@ -1,3 +1,4 @@
+import { Types } from 'cafe-utility'
 import { BeeRequestOptions } from '../index'
 import { http } from '../utils/http'
 
@@ -11,3 +12,15 @@ export async function checkConnection(requestOptions: BeeRequestOptions): Promis
     url: '',
   })
 }
+
+export async function isGateway(requestOptions: BeeRequestOptions): Promise<boolean> {
+  try {
+    const response = await http<unknown>(requestOptions, {
+      url: '/gateway',
+    })
+    const data = Types.asObject(response.data)
+    return Types.asBoolean(data.gateway)
+  } catch (error) {
+    return false
+  }
+}