Convert demo example into typescript

examples/demo/package.json

@@ -42,6 +42,7 @@
         "not op_mini all"
     ],
     "devDependencies": {
+        "@types/fetch-mock": "^7.3.2",
         "@types/classnames": "^2.2.9",
         "@types/jest": "^24.0.23",
         "@types/node": "^12.12.14",

examples/demo/src/App.tsx

@@ -38,10 +38,10 @@ const App = () => {
 
         const fetchDataProvider = async () => {
             restoreFetch = await fakeServerFactory(
-                process.env.REACT_APP_DATA_PROVIDER
+                process.env.REACT_APP_DATA_PROVIDER || ''
             );
             const dataProviderInstance = await dataProviderFactory(
-                process.env.REACT_APP_DATA_PROVIDER
+                process.env.REACT_APP_DATA_PROVIDER || ''
             );
             setDataProvider(
                 // GOTCHA: dataProviderInstance can be a function

examples/demo/src/data-generator-retail.d.ts

@@ -0,0 +1 @@
+declare module 'data-generator-retail';

examples/demo/src/dataProvider/graphql.js → examples/demo/src/dataProvider/graphql.ts

@@ -1,9 +1,16 @@
+import { ApolloQueryResult } from 'apollo-client';
 import buildApolloClient, {
     buildQuery as buildQueryFactory,
 } from 'ra-data-graphql-simple';
-import { DELETE } from 'ra-core';
+import { DELETE, LegacyDataProvider } from 'ra-core';
 import gql from 'graphql-tag';
-const getGqlResource = resource => {
+import {
+    IntrospectionField,
+    IntrospectionSchema,
+    IntrospectionType,
+} from 'graphql';
+
+const getGqlResource = (resource: string) => {
     switch (resource) {
         case 'customers':
             return 'Customer';
@@ -28,7 +35,20 @@ const getGqlResource = resource => {
     }
 };
 
-const customBuildQuery = introspectionResults => {
+type IntrospectionResource = IntrospectionType & {
+    [key: string]: IntrospectionField;
+};
+
+interface IntrospectionResults {
+    types: IntrospectionType[];
+    queries: IntrospectionField[];
+    resources: IntrospectionResource[];
+    schema: IntrospectionSchema;
+}
+
+const customBuildQuery = (
+    introspectionResults: IntrospectionResults
+): LegacyDataProvider => {
     const buildQuery = buildQueryFactory(introspectionResults);
 
     return (type, resource, params) => {
@@ -38,7 +58,7 @@ const customBuildQuery = introspectionResults => {
                     remove${resource}(id: $id)
                 }`,
                 variables: { id: params.id },
-                parseResponse: ({ data }) => {
+                parseResponse: ({ data }: ApolloQueryResult<any>) => {
                     if (data[`remove${resource}`]) {
                         return { data: { id: params.id } };
                     }
@@ -59,11 +79,17 @@ export default () => {
         },
         introspection: {
             operationNames: {
-                [DELETE]: resource => `remove${resource.name}`,
+                [DELETE]: (resource: IntrospectionType) =>
+                    `remove${resource.name}`,
             },
         },
         buildQuery: customBuildQuery,
-    }).then(dataProvider => (type, resource, params) =>
-        dataProvider(type, getGqlResource(resource), params)
+    }).then(
+        (dataProvider: LegacyDataProvider) => (
+            ...rest: Parameters<LegacyDataProvider>
+        ) => {
+            const [type, resource, params] = rest;
+            return dataProvider(type, getGqlResource(resource), params);
+        }
     );
 };

examples/demo/src/dataProvider/index.js → examples/demo/src/dataProvider/index.ts

@@ -1,4 +1,4 @@
-export default type => {
+export default (type: string) => {
     switch (type) {
         case 'graphql':
             return import('./graphql').then(factory => factory.default());

examples/demo/src/dataProvider/rest.js → examples/demo/src/dataProvider/rest.ts

@@ -6,10 +6,13 @@ const delayedDataProvider = new Proxy(restProvider, {
     get: (target, name, self) =>
         name === 'then' // as we await for the dataProvider, JS calls then on it. We must trap that call or else the dataProvider will be called with the then method
             ? self
-            : (resource, params) =>
+            : (resource: string, params: any) =>
                   new Promise(resolve =>
                       setTimeout(
-                          () => resolve(restProvider[name](resource, params)),
+                          () =>
+                              resolve(
+                                  restProvider[name as string](resource, params)
+                              ),
                           500
                       )
                   ),

examples/demo/src/fakeServer/index.js → examples/demo/src/fakeServer/index.ts

@@ -1,4 +1,4 @@
-export default type => {
+export default (type: string) => {
     switch (type) {
         case 'graphql':
             return import('./graphql').then(factory => factory.default());

examples/demo/src/fakerest.d.ts

@@ -0,0 +1 @@
+declare module 'fakerest';

examples/demo/src/json-graphql-server.d.ts

@@ -0,0 +1 @@
+declare module 'json-graphql-server';

examples/demo/src/orders/MobileGrid.js → examples/demo/src/orders/MobileGrid.tsx

@@ -1,5 +1,5 @@
 // in src/comments.js
-import React from 'react';
+import React, { FC } from 'react';
 import Card from '@material-ui/core/Card';
 import CardHeader from '@material-ui/core/CardHeader';
 import CardContent from '@material-ui/core/CardContent';
@@ -14,6 +14,7 @@ import {
 } from 'react-admin';
 
 import CustomerReferenceField from '../visitors/CustomerReferenceField';
+import { RecordMap, Identifier, Record } from 'ra-core';
 
 const useListStyles = makeStyles(theme => ({
     card: {
@@ -24,22 +25,33 @@ const useListStyles = makeStyles(theme => ({
     },
     cardTitleContent: {
         display: 'flex',
-        flexDirection: 'rows',
+        flexDirection: 'row',
         alignItems: 'center',
         justifyContent: 'space-between',
     },
     cardContent: theme.typography.body1,
     cardContentRow: {
         display: 'flex',
-        flexDirection: 'rows',
+        flexDirection: 'row',
         alignItems: 'center',
         margin: '0.5rem 0',
     },
 }));
 
-const MobileGrid = ({ ids, data, basePath }) => {
+interface MobileGridProps {
+    ids?: Identifier[];
+    data?: RecordMap<Record>;
+    basePath?: string;
+}
+
+const MobileGrid: FC<MobileGridProps> = ({ ids, data, basePath }) => {
     const translate = useTranslate();
     const classes = useListStyles();
+
+    if (!ids || !data || !basePath) {
+        return null;
+    }
+
     return (
         <div style={{ margin: '1em' }}>
             {ids.map(id => (
@@ -88,7 +100,6 @@ const MobileGrid = ({ ids, data, basePath }) => {
                                 record={data[id]}
                                 source="total"
                                 options={{ style: 'currency', currency: 'USD' }}
-                                className={classes.total}
                             />
                         </span>
                         <span className={classes.cardContentRow}>

examples/demo/src/orders/NbItemsField.tsx

@@ -0,0 +1,20 @@
+import React, { FC } from 'react';
+import { FunctionField } from 'react-admin';
+import { Order, FieldProps } from '../types';
+
+const render = (record: Order) => record.basket.length;
+
+interface NbItemsFieldProps extends FieldProps {
+    textAlign?: string;
+}
+
+const NbItemsField: FC<NbItemsFieldProps> = props => (
+    <FunctionField {...props} render={render} />
+);
+
+NbItemsField.defaultProps = {
+    label: 'Nb Items',
+    textAlign: 'right',
+};
+
+export default NbItemsField;

examples/demo/src/orders/OrderEdit.js → examples/demo/src/orders/OrderEdit.tsx

@@ -1,4 +1,4 @@
-import React from 'react';
+import React, { FC } from 'react';
 import {
     AutocompleteInput,
     BooleanInput,
@@ -10,25 +10,30 @@ import {
     useTranslate,
 } from 'react-admin';
 import { makeStyles } from '@material-ui/core/styles';
+import { Order, Customer, EditComponentProps } from '../types';
 
 import Basket from './Basket';
 
-const OrderTitle = ({ record }) => {
+interface OrderTitleProps {
+    record?: Order;
+}
+
+const OrderTitle: FC<OrderTitleProps> = ({ record }) => {
     const translate = useTranslate();
-    return (
+    return record ? (
         <span>
             {translate('resources.commands.title', {
                 reference: record.reference,
             })}
         </span>
-    );
+    ) : null;
 };
 
 const useEditStyles = makeStyles({
     root: { alignItems: 'flex-start' },
 });
 
-const OrderEdit = props => {
+const OrderEdit: FC<EditComponentProps> = props => {
     const classes = useEditStyles();
     return (
         <Edit
@@ -41,7 +46,7 @@ const OrderEdit = props => {
                 <DateInput source="date" />
                 <ReferenceInput source="customer_id" reference="customers">
                     <AutocompleteInput
-                        optionText={choice =>
+                        optionText={(choice: Customer) =>
                             `${choice.first_name} ${choice.last_name}`
                         }
                     />