add new /xpub/import/status endpoint

accounts/xpub-rest-api.js

@@ -48,6 +48,14 @@ class XPubRestApi {
       HttpServer.sendAuthError
     )
 
+    this.httpServer.app.get(
+      '/xpub/:xpub/import/status',
+      authMgr.checkAuthentication.bind(authMgr),
+      this.validateArgsGetXpub.bind(this),
+      this.getXpubImportStatus.bind(this),
+      HttpServer.sendAuthError
+    )
+
     this.httpServer.app.get(
       '/xpub/:xpub',
       authMgr.checkAuthentication.bind(authMgr),
@@ -202,6 +210,41 @@ class XPubRestApi {
     }
   }
 
+  /**
+   * Handle xPub/import/status GET request
+   * @param {object} req - http request object
+   * @param {object} res - http response object
+   */
+  async getXpubImportStatus(req, res) {
+    try {
+      let xpub
+
+      // Extracts arguments
+      const argXpub = req.params.xpub
+
+      // Translate xpub if needed
+      try {
+        const xlatXpub = this.xlatHdAccount(argXpub)
+        xpub = xlatXpub.xpub
+      } catch(e) {
+        return HttpServer.sendError(res, e)
+      }
+
+      const ret = {
+        import_in_progress: hdaService.importInProgress(xpub)
+      }
+
+      HttpServer.sendOkData(res, ret)
+
+    } catch(e) {
+      Logger.error(e, 'API : XpubRestApi.getXpubImportStatus()')
+      HttpServer.sendError(res, e)
+
+    } finally {
+      debugApi && Logger.info(`API : Completed GET /xpub/${req.params.xpub}/import/status`)
+    }
+  }
+
   /**
    * Handle Lock XPub POST request
    * @param {object} req - http request object

lib/bitcoin/hd-accounts-service.js

@@ -171,6 +171,16 @@ class HDAccountsService {
     } 
   }
 
+  /**
+   * Check if a xpub is currently being imported or rescanned by Dojo
+   * Returns true if import/rescan is in progress, otherwise returns false
+   * @param {string} xpub - xpub
+   * @returns {Promise}
+   */
+  importInProgress(xpub) {
+    return remote.importInProgress(xpub)
+  }
+
   /**
    * Check if we try to override an existing xpub
    * Delete the old xpub from db if it's the case

lib/remote-importer/remote-importer.js

@@ -48,6 +48,16 @@ class RemoteImporter {
       delete this.importing[xpub]
   }
 
+  /**
+   * Check if a xpub is currently being imported or rescanned by Dojo
+   * Returns true if import/rescan is in progress, otherwise returns false
+   * @param {string} xpub - xpub
+   * @returns {boolean}
+   */
+  importInProgress(xpub) {
+    return this.importing[xpub] ? true : false
+  }
+
   /**
    * Process the relations between a list of transactions
    * @param {object[]} txs - array of transaction objects