diff --git a/packages/generator-overreact-odata/src/index.js b/packages/generator-overreact-odata/src/index.js
index 59fdb84..8655695 100644
--- a/packages/generator-overreact-odata/src/index.js
+++ b/packages/generator-overreact-odata/src/index.js
@@ -135,6 +135,7 @@ module.exports = class extends Generator {
   }
 
   async configuring() {
+    this.packageJson.set(this.packageJsonConfigs);
     const { url } = this.overreactJsonConfigs;
     try {
       this.log(`Fetching metadata from ${url}`);
@@ -147,8 +148,6 @@ module.exports = class extends Generator {
     this.log('Metadata fetched.');
 
     if (this.stage === packageStage.FIRST_RUN) {
-      this.packageJson.set(this.packageJsonConfigs);
-
       const MODEL_PREFIX = 'Model/';
       const pascalToSnakeCase = str => str.split(/(?=[A-Z])/).join('_').toLowerCase();
       const modelAliases = {};
diff --git a/packages/generator-overreact-odata/src/templates/calls/action-spec.ejs b/packages/generator-overreact-odata/src/templates/calls/action-spec.ejs
index 710c809..3dba6b8 100644
--- a/packages/generator-overreact-odata/src/templates/calls/action-spec.ejs
+++ b/packages/generator-overreact-odata/src/templates/calls/action-spec.ejs
@@ -21,6 +21,7 @@ import {
   payloadDecorator,
   processorDecorator,
   keySelectorDecorator,
+  sideEffects,
 
   networkPolicy,
 } from './action-decorators';
@@ -75,7 +76,7 @@ export const fetchSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.FETCH,
-  null,
+  sideEffects.fetch,
   environmentLookupFn,
 );
 
@@ -83,6 +84,6 @@ export const actionSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.MUTATION,
-  null,
+  sideEffects.mutation,
   environmentLookupFn,
 );
diff --git a/packages/generator-overreact-odata/src/templates/calls/func-spec.ejs b/packages/generator-overreact-odata/src/templates/calls/func-spec.ejs
index 7921857..cd4e3bb 100644
--- a/packages/generator-overreact-odata/src/templates/calls/func-spec.ejs
+++ b/packages/generator-overreact-odata/src/templates/calls/func-spec.ejs
@@ -20,6 +20,7 @@ import {
   headerDecorator,
   processorDecorator,
   keySelectorDecorator,
+  sideEffects,
 
   networkPolicy,
 } from './func-decorators';
@@ -68,7 +69,7 @@ export const fetchSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.FETCH,
-  null,
+  sideEffects.fetch,
   environmentLookupFn,
 );
 
@@ -76,6 +77,6 @@ export const refetchSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.REFETCH,
-  null,
+  sideEffects.refetch,
   environmentLookupFn,
 );
diff --git a/packages/generator-overreact-odata/src/templates/coll/add-spec.ejs b/packages/generator-overreact-odata/src/templates/coll/add-spec.ejs
index 60d73aa..0a4305d 100644
--- a/packages/generator-overreact-odata/src/templates/coll/add-spec.ejs
+++ b/packages/generator-overreact-odata/src/templates/coll/add-spec.ejs
@@ -21,6 +21,7 @@ import {
   payloadDecorator,
   processorDecorator,
   keySelectorDecorator,
+  sideEffects,
 
   networkPolicy,
 } from './add-decorators';
@@ -75,6 +76,6 @@ export const addSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.ADD,
-  null,
+  sideEffects.add,
   environmentLookupFn,
 );
diff --git a/packages/generator-overreact-odata/src/templates/coll/destroy-spec.ejs b/packages/generator-overreact-odata/src/templates/coll/destroy-spec.ejs
index 7aeb419..037ea03 100644
--- a/packages/generator-overreact-odata/src/templates/coll/destroy-spec.ejs
+++ b/packages/generator-overreact-odata/src/templates/coll/destroy-spec.ejs
@@ -20,6 +20,7 @@ import {
   headerDecorator,
   processorDecorator,
   keySelectorDecorator,
+  sideEffects,
 
   networkPolicy,
 } from './destroy-decorators';
@@ -68,6 +69,6 @@ export const destroySpec = createSpec(
   requestContract,
   responseContract,
   specTypes.DELETE,
-  null,
+  sideEffects.destroy,
   environmentLookupFn,
 );
diff --git a/packages/generator-overreact-odata/src/templates/coll/fetch-spec.ejs b/packages/generator-overreact-odata/src/templates/coll/fetch-spec.ejs
index e5d2fe8..e27d0ab 100644
--- a/packages/generator-overreact-odata/src/templates/coll/fetch-spec.ejs
+++ b/packages/generator-overreact-odata/src/templates/coll/fetch-spec.ejs
@@ -20,6 +20,7 @@ import {
   headerDecorator,
   processorDecorator,
   keySelectorDecorator,
+  sideEffects,
 
   networkPolicy,
 } from './fetch-decorators';
@@ -68,7 +69,7 @@ export const fetchSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.PAGINATION,
-  null,
+  sideEffects.pagination,
   environmentLookupFn,
 );
 
@@ -76,6 +77,6 @@ export const refetchSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.REFETCH,
-  null,
+  sideEffects.refetch,
   environmentLookupFn,
 );
diff --git a/packages/generator-overreact-odata/src/templates/coll/mutation-spec.ejs b/packages/generator-overreact-odata/src/templates/coll/mutation-spec.ejs
index 8d2a880..21e11c8 100644
--- a/packages/generator-overreact-odata/src/templates/coll/mutation-spec.ejs
+++ b/packages/generator-overreact-odata/src/templates/coll/mutation-spec.ejs
@@ -21,6 +21,7 @@ import {
   payloadDecorator,
   processorDecorator,
   keySelectorDecorator,
+  sideEffects,
 
   networkPolicy,
 } from './mutation-decorators';
@@ -75,6 +76,6 @@ export const mutationSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.MUTATION,
-  null,
+  sideEffects.mutation,
   environmentLookupFn,
 );
diff --git a/packages/generator-overreact-odata/src/templates/entity/destroy-spec.ejs b/packages/generator-overreact-odata/src/templates/entity/destroy-spec.ejs
index 6441408..3a2d725 100644
--- a/packages/generator-overreact-odata/src/templates/entity/destroy-spec.ejs
+++ b/packages/generator-overreact-odata/src/templates/entity/destroy-spec.ejs
@@ -20,6 +20,7 @@ import {
   headerDecorator,
   processorDecorator,
   keySelectorDecorator,
+  sideEffects,
 
   networkPolicy,
 } from './destroy-decorators';
@@ -68,6 +69,6 @@ export const destroySpec = createSpec(
   requestContract,
   responseContract,
   specTypes.DELETE,
-  null,
+  sideEffects.destroy,
   environmentLookupFn,
 );
diff --git a/packages/generator-overreact-odata/src/templates/entity/fetch-spec.ejs b/packages/generator-overreact-odata/src/templates/entity/fetch-spec.ejs
index d617e56..445cc2e 100644
--- a/packages/generator-overreact-odata/src/templates/entity/fetch-spec.ejs
+++ b/packages/generator-overreact-odata/src/templates/entity/fetch-spec.ejs
@@ -20,6 +20,7 @@ import {
   headerDecorator,
   processorDecorator,
   keySelectorDecorator,
+  sideEffects,
 
   networkPolicy,
 } from './fetch-decorators';
@@ -68,7 +69,7 @@ export const fetchSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.FETCH,
-  null,
+  sideEffects.fetch,
   environmentLookupFn,
 );
 
@@ -76,6 +77,6 @@ export const refetchSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.REFETCH,
-  null,
+  sideEffects.refetch,
   environmentLookupFn,
 );
diff --git a/packages/generator-overreact-odata/src/templates/entity/mutation-spec.ejs b/packages/generator-overreact-odata/src/templates/entity/mutation-spec.ejs
index b91be32..3b422ce 100644
--- a/packages/generator-overreact-odata/src/templates/entity/mutation-spec.ejs
+++ b/packages/generator-overreact-odata/src/templates/entity/mutation-spec.ejs
@@ -21,6 +21,7 @@ import {
   payloadDecorator,
   processorDecorator,
   keySelectorDecorator,
+  sideEffects,
 
   networkPolicy,
 } from './mutation-decorators';
@@ -75,6 +76,6 @@ export const mutationSpec = createSpec(
   requestContract,
   responseContract,
   specTypes.MUTATION,
-  null,
+  sideEffects.mutation,
   environmentLookupFn,
 );
diff --git a/packages/generator-overreact-odata/src/templates/hooks/use-action.ejs b/packages/generator-overreact-odata/src/templates/hooks/use-action.ejs
index 094bee3..2e5da04 100644
--- a/packages/generator-overreact-odata/src/templates/hooks/use-action.ejs
+++ b/packages/generator-overreact-odata/src/templates/hooks/use-action.ejs
@@ -1,4 +1,5 @@
 import { useCallback, useMemo } from 'react';
+import stringify from 'json-stable-stringify';
 
 import {
   useFetch,
@@ -9,8 +10,9 @@ import {
 import { environmentLookupFn } from '<%= envLocation %>';
 import { fetchSpec, actionSpec } from '../../__specs/calls/action-spec';
 
-export function <%- hookName %>(dataLocator, config = {}) {
-  const dataRefId = useDataRefId(environmentLookupFn);
+export function <%- hookName %>(variables, config = {}) {
+  const { dataLocator } = variables;
+  const dataRefId = useDataRefId(`call_${stringify(dataLocator)}`, environmentLookupFn);
 
   const defaultConfig = useMemo(() => ({
     mutation: config.mutation || {},
@@ -23,12 +25,15 @@ export function <%- hookName %>(dataLocator, config = {}) {
   const action = useMutation(dataRefId, actionSpec, mutationConfig);
 
   const callFn = useCallback((param = {}, requestConfig, ...rest) => {
-    action({
-      ...dataLocator,
-      ...param.variables,
-    },
-    param.payload,
-    requestConfig, ...rest);
+    action(
+      {
+        ...dataLocator,
+        ...param.variables,
+      },
+      param.payload,
+      requestConfig,
+      ...rest
+    );
   }, [dataLocator, action]);
 
   const [data, error] = fetch;
diff --git a/packages/generator-overreact-odata/src/templates/hooks/use-coll.ejs b/packages/generator-overreact-odata/src/templates/hooks/use-coll.ejs
index 5fdad77..6cb5dc2 100644
--- a/packages/generator-overreact-odata/src/templates/hooks/use-coll.ejs
+++ b/packages/generator-overreact-odata/src/templates/hooks/use-coll.ejs
@@ -1,5 +1,12 @@
 import { useCallback, useMemo } from 'react';
-import { useDataRefId, usePagination, useMutation } from '@microsoft/overreact';
+import stringify from 'json-stable-stringify';
+
+import {
+  useDataRefId,
+  usePagination,
+  useMutation,
+  useRefetch,
+} from '@microsoft/overreact';
 
 import { environmentLookupFn } from '<%= envLocation %>';
 
@@ -8,37 +15,60 @@ import { destroySpec } from '../../__specs/coll/destroy-spec';
 import { fetchSpec, refetchSpec } from '../../__specs/coll/fetch-spec';
 import { mutationSpec } from '../../__specs/coll/mutation-spec';
 
-export function <%- hookName %>(specs, path, variables, config = {}) {
-  const dataRefId = useDataRefId(environmentLookupFn);
+export function <%- hookName %>(variables, config = {}) {
+  const { dataLocator } = variables;
+  const dataRefId = useDataRefId(`coll_${stringify(dataLocator)}`, environmentLookupFn);
 
-  // FIXME: extract fetchVariables out from the config
-  const paginationConfig = useMemo(() => ({
-    fetchVariables: {
-      ...variables,
-    },
-    ...config,
-  }), [config, variables]);
+  const defaultConfig = useMemo(() => ({
+    refetch: config.refetch || {},
+    mutation: config.mutation || {},
+    destroy: config.destroy || {},
+    pagination: config.pagination || {},
+    create: config.add || {},
+  }), [config]);
 
-  const [data, methods] = usePagination(dataRefId, fetchSpec, paginationConfig);
+  const {
+    refetch: refetchConfig,
+    mutation: mutationConfig,
+    destroy: destroyConfig,
+    pagination: paginationConfig,
+    create: createConfig,
+  } = defaultConfig;
 
-  const mutateFn = useMutation(dataRefId, mutationSpec, config);
-  const destroyFn = useMutation(dataRefId, destroySpec, config);
-  const createFn = useMutation(dataRefId, addSpec, config);
+  const [data, paginationMethods] = usePagination(dataRefId, fetchSpec, paginationConfig);
+  const mutateFn = useMutation(dataRefId, mutationSpec, mutationConfig);
+  const destroyFn = useMutation(dataRefId, destroySpec, destroyConfig);
+  const createFn = useMutation(dataRefId, addSpec, createConfig);
+  const refetchFn = useRefetch(dataRefId, refetchSpec, refetchConfig);
 
   const update = useCallback((newData, ...rest) => {
-    mutateFn(variables, newData, ...rest);
-  }, [mutateFn, variables]);
+    mutateFn({ ...dataLocator }, newData, ...rest);
+  }, [mutateFn, dataLocator]);
 
   // FIXME: likezh: Why would destroy need data?
   const destroy = useCallback((newData, ...rest) => {
-    destroyFn(variables, newData, ...rest);
-  }, [destroyFn, variables]);
+    destroyFn({ ...dataLocator }, newData, ...rest);
+  }, [destroyFn, dataLocator]);
 
   const create = useCallback((newData, ...rest) => {
-    createFn(variables, newData, ...rest);
-  }, [createFn, variables]);
+    createFn({ ...dataLocator }, newData, ...rest);
+  }, [createFn, dataLocator]);
 
-  const { loadMore, hasMore, isLoading } = methods;
+  const refetch = useCallback((parameter, ...rest) => {
+    refetchFn(
+      {
+        variables: {
+          ...dataLocator,
+          ...parameter.variables,
+        },
+        payload: parameter.payload,
+      },
+      refetchConfig,
+      ...rest
+    );
+  }, [refetchFn, refetchConfig, dataLocator]);
+
+  const { loadMore, hasMore, isLoading } = paginationMethods;
 
   return [data, {
     loadMore,
@@ -47,5 +77,6 @@ export function <%- hookName %>(specs, path, variables, config = {}) {
     create,
     update,
     destroy,
+    refetch,
   }];
 }
diff --git a/packages/generator-overreact-odata/src/templates/hooks/use-entity.ejs b/packages/generator-overreact-odata/src/templates/hooks/use-entity.ejs
index de3c9e0..332ac89 100644
--- a/packages/generator-overreact-odata/src/templates/hooks/use-entity.ejs
+++ b/packages/generator-overreact-odata/src/templates/hooks/use-entity.ejs
@@ -1,5 +1,12 @@
-import { useCallback } from 'react';
-import { useDataRefId, useFetch, useMutation } from '@microsoft/overreact';
+import { useCallback, useMemo } from 'react';
+import stringify from 'json-stable-stringify';
+
+import {
+  useDataRefId,
+  useFetch,
+  useMutation,
+  useRefetch,
+} from '@microsoft/overreact';
 
 import { environmentLookupFn } from '<%= envLocation %>';
 
@@ -7,12 +14,28 @@ import { destroySpec } from '../../__specs/entity/destroy-spec';
 import { fetchSpec, refetchSpec } from '../../__specs/entity/fetch-spec';
 import { mutationSpec } from '../../__specs/entity/mutation-spec';
 
-export function <%- hookName %>(specs, path, variables, config = {}) {
-  const dataRefId = useDataRefId(environmentLookupFn);
+export function <%- hookName %>(variables, config = {}) {
+  const { dataLocator } = variables;
+  const dataRefId = useDataRefId(`entity_${stringify(dataLocator)}`, environmentLookupFn);
 
-  const [data, error] = useFetch(dataRefId, fetchSpec, variables, config);
-  const mutateFn = useMutation(dataRefId, mutationSpec, config);
-  const destroyFn = useMutation(dataRefId, destroySpec, config);
+  const defaultConfig = useMemo(() => ({
+    fetch: config.fetch || {},
+    refetch: config.refetch || {},
+    mutation: config.mutation || {},
+    destroy: config.destroy || {},
+  }), [config]);
+
+  const {
+    fetch: fetchConfig,
+    refetch: refetchConfig,
+    mutation: mutationConfig,
+    destroy: destroyConfig,
+  } = defaultConfig;
+
+  const [data, error] = useFetch(dataRefId, fetchSpec, variables, fetchConfig);
+  const mutateFn = useMutation(dataRefId, mutationSpec, mutationConfig);
+  const destroyFn = useMutation(dataRefId, destroySpec, destroyConfig);
+  const refetchFn = useRefetch(dataRefId, refetchSpec, refetchConfig);
 
   const update = useCallback((newData, ...rest) => {
     mutateFn(variables, newData, ...rest);
@@ -23,5 +46,19 @@ export function <%- hookName %>(specs, path, variables, config = {}) {
     destroyFn(variables, newData, ...rest);
   }, [destroyFn, variables]);
 
-  return [{ data, error }, { update, destroy }];
+  const refetch = useCallback((parameter, ...rest) => {
+    refetchFn(
+      {
+        variables: {
+          ...dataLocator,
+          ...parameter.variables,
+        },
+        payload: parameter.payload,
+      },
+      refetchConfig,
+      ...rest
+    );
+  }, [refetchFn, refetchConfig, dataLocator]);
+
+  return [{ data, error }, { update, destroy, refetch }];
 }
diff --git a/packages/generator-overreact-odata/src/templates/hooks/use-func.ejs b/packages/generator-overreact-odata/src/templates/hooks/use-func.ejs
index 3dcb63c..ebc8da6 100644
--- a/packages/generator-overreact-odata/src/templates/hooks/use-func.ejs
+++ b/packages/generator-overreact-odata/src/templates/hooks/use-func.ejs
@@ -1,4 +1,5 @@
 import { useCallback, useMemo } from 'react';
+import stringify from 'json-stable-stringify';
 
 import {
   useFetch,
@@ -9,8 +10,9 @@ import {
 import { environmentLookupFn } from '<%= envLocation %>';
 import { fetchSpec, refetchSpec } from '../../__specs/calls/func-spec';
 
-export function <%- hookName %>(dataLocator, config = {}) {
-  const dataRefId = useDataRefId(environmentLookupFn);
+export function <%- hookName %>(variables, config = {}) {
+  const { dataLocator } = variables;
+  const dataRefId = useDataRefId(`call_${stringify(dataLocator)}`, environmentLookupFn);
 
   const defaultConfig = useMemo(() => ({
     refetch: config.refetch || {},
@@ -23,12 +25,16 @@ export function <%- hookName %>(dataLocator, config = {}) {
   const func = useRefetch(dataRefId, refetchSpec, refetchConfig);
 
   const callFn = useCallback((param = {}, requestConfig, ...rest) => {
-    func({
-      variables: {
-        ...dataLocator,
-        ...param.variables,
+    func(
+      {
+        variables: {
+          ...dataLocator,
+          ...param.variables,
+        },
       },
-    }, requestConfig, ...rest);
+      requestConfig,
+      ...rest
+    );
   }, [dataLocator, func]);
 
   const [data, error] = fetch;
diff --git a/packages/generator-overreact-odata/src/templates/root/package.json b/packages/generator-overreact-odata/src/templates/root/package.json
index 496fad6..aa5138d 100644
--- a/packages/generator-overreact-odata/src/templates/root/package.json
+++ b/packages/generator-overreact-odata/src/templates/root/package.json
@@ -9,6 +9,7 @@
     "@microsoft/overreact": "^0.1.0-alpha.9",
     "@microsoft/overreact-odata": "^0.1.0-alpha.9",
     "bluebird": "^3.7.2",
+    "json-stable-stringify": "^1.0.1",
     "query-string": "^7.0.1",
     "react": ">=16.8.0",
     "underscore": "^1.13.1"
diff --git a/packages/generator-overreact-odata/src/templates/shared/decorators.js b/packages/generator-overreact-odata/src/templates/shared/decorators.js
index 8d46560..e141e17 100644
--- a/packages/generator-overreact-odata/src/templates/shared/decorators.js
+++ b/packages/generator-overreact-odata/src/templates/shared/decorators.js
@@ -46,3 +46,12 @@ export function processorDecorator(fn) {
 
   return (response, request) => decorator(response, request, fn(response, request));
 }
+
+export const sideEffects = {
+  fetch: null,
+  refetch: null,
+  mutation: null,
+  pagination: null,
+  add: null,
+  destroy: null,
+};