feat(dynamodb): allow custom request template definition

Author: tomharvey

lib/apiGateway/schema.js

@@ -278,7 +278,8 @@ const proxiesSchemas = {
       tableName: stringOrRef.required(),
       condition: Joi.string(),
       hashKey: dynamodbDefaultKeyScheme.required(),
-      rangeKey: dynamodbDefaultKeyScheme
+      rangeKey: dynamodbDefaultKeyScheme,
+      request
     })
   }),
   eventbridge: Joi.object({

lib/apiGateway/validate.test.js

@@ -2169,5 +2169,24 @@ describe('#validateServiceProxies()', () => {
 
       expect(() => serverlessApigatewayServiceProxy.validateServiceProxies()).to.not.throw()
     })
+
+    it('should not throw error if request is a mapping template object', () => {
+      serverlessApigatewayServiceProxy.serverless.service.custom = {
+        apiGatewayServiceProxies: [
+          {
+            dynamodb: {
+              tableName: 'yourTable',
+              path: 'dynamodb',
+              method: 'put',
+              action: 'PutItem',
+              hashKey: { pathParam: 'id', attributeType: 'S' },
+              request: { template: { 'application/json': 'mapping template' } }
+            }
+          }
+        ]
+      }
+
+      expect(() => serverlessApigatewayServiceProxy.validateServiceProxies()).to.not.throw()
+    })
   })
 })