loopback/common/models/vn-model.js

@@ -33,7 +33,7 @@ module.exports = function(Self) {
                 const defaultLimit = this.app.orm.selectLimit;
                 const filter = ctx.args.filter || {limit: defaultLimit};
 
-                if (filter.limit > defaultLimit) {
+                if (!filter.limit || filter.limit > defaultLimit) {
                     filter.limit = defaultLimit;
                     ctx.args.filter = filter;
                 }
@@ -349,9 +349,10 @@ module.exports = function(Self) {
         },
 
         hasFilter(ctx) {
-            return ctx.req.method.toUpperCase() === 'GET' &&
-            ctx.method.accepts.some(x => x.arg === 'filter' && x.type.toLowerCase() === 'object');
-        }
-
+            const {method, req} = ctx;
+            if (method.noLimit) return false;
+            return req.method.toUpperCase() === 'GET' &&
+            method.accepts.some(x => x.arg === 'filter' && x.type.toLowerCase() === 'object');
+        },
     });
 };

modules/item/back/methods/item/getBalance.js

@@ -16,7 +16,8 @@ module.exports = Self => {
         http: {
             path: `/getBalance`,
             verb: 'GET'
-        }
+        },
+        noLimit: true
     });
 
     Self.getBalance = async(ctx, filter, options) => {