在 React Native 项目中向 Amplify API 添加模拟时出错

Question

我目前正在开发一个 React Native 项目，其中使用 AWS Amplify 作为我的后端 API。我尝试向 Amplify API 添加模拟以进行测试，但使用此命令时遇到错误：

amplify mock api

导致此错误消息：

Edit your schema at 
/***/***/***/***/amplify/backend/api/***/schema.graphql or place .graphql files in a directory at /***/***/***/***/amplify/backend/api/***/schema
Failed to start API Mocking. Running cleanup tasks.
Reason: Error: Parse error on resolvers/Query.syncCouriers.req.vtl:11:50
Parse error on line 12:
...tx.stash.authFilter.or ) #if( $fil
-----------------------^
Expecting 'ID', 'CONTENT', got '||' 

我不确定到底是什么导致了这个错误以及如何解决它。我已经检查了我的架构文件并确保其格式正确。我还尝试在指定目录中创建单独的 .graphql 文件，但错误仍然存​​在。

包.json：

{
  "name": "ubereatsuser",
  "version": "1.0.0",
  "main": "node_modules/expo/AppEntry.js",
  "scripts": {
    "start": "expo start",
    "android": "expo start --android",
    "ios": "expo start --ios",
    "web": "expo start --web",
    "eject": "expo eject"
  },
  "dependencies": {
    "@react-native-async-storage/async-storage": "1.17.11",
    "@react-native-community/netinfo": "9.3.5",
    "@react-native-picker/picker": "2.4.8",
    "@react-navigation/bottom-tabs": "^6.3.1",
    "@react-navigation/material-bottom-tabs": "^6.2.1",
    "@react-navigation/material-top-tabs": "^6.2.1",
    "@react-navigation/native": "^6.0.10",
    "@react-navigation/native-stack": "^6.6.1",
    "aws-amplify": "^4.3.20",
    "aws-amplify-react-native": "^6.0.4",
    "expo": "~47.0.0",
    "expo-status-bar": "~1.4.4",
    "graphql": "^14.7.0",
    "react": "18.1.0",
    "react-dom": "18.1.0",
    "react-native": "0.70.8",
    "react-native-maps": "1.3.2",
    "react-native-pager-view": "6.0.1",
    "react-native-paper": "^4.12.0",
    "react-native-safe-area-context": "4.4.1",
    "react-native-screens": "~3.18.0",
    "react-native-tab-view": "^3.1.1",
    "react-native-vector-icons": "^9.1.0",
    "react-native-web": "~0.18.10"
  },
  "devDependencies": {
    "@babel/core": "^7.12.9",
    "@types/react": "~18.0.27",
    "@types/react-native": "~0.64.12",
    "typescript": "^4.9.4"
  },
  "private": true
}

模式.graphql：

enum TransportationModes {
  DRIVING
  BICYCLING
}

type Courier @model @auth(rules: [{allow: public}]) {
  id: ID!
  name: String!
  sub: String!
  lat: Float
  lng: Float
  transportationMode: TransportationModes!
}

type Basket @model @auth(rules: [{allow: public}]) {
  id: ID!
  BasketDishes: [BasketDish] @hasMany(indexName: "byBasket", fields: ["id"])
  userID: ID! @index(name: "byUser")
  restaurantID: ID! @index(name: "byRestaurant")
}

enum OrderStatus {
  NEW
  COOKING
  READY_FOR_PICKUP
  PICKED_UP
  COMPLETED
  ACCEPTED
}

type OrderDish @model @auth(rules: [{allow: public}]) {
  id: ID!
  quantity: Int!
  Dish: Dish @hasOne
  orderID: ID! @index(name: "byOrder")
}

type Order @model @auth(rules: [{allow: public}]) {
  id: ID!
  userID: ID! @index(name: "byUser")
  Restaurant: Restaurant @hasOne
  total: Float!
  status: OrderStatus!
  OrderDishes: [OrderDish] @hasMany(indexName: "byOrder", fields: ["id"])
  Courier: Courier @hasOne
}

type BasketDish @model @auth(rules: [{allow: public}]) {
  id: ID!
  quantity: Int!
  Dish: Dish @hasOne
  basketID: ID! @index(name: "byBasket")
}

type User @model @auth(rules: [{allow: public}]) {
  id: ID!
  name: String!
  address: String!
  lat: Float!
  lng: Float!
  Orders: [Order] @hasMany(indexName: "byUser", fields: ["id"])
  Baskets: [Basket] @hasMany(indexName: "byUser", fields: ["id"])
  sub: String!
}

type Dish @model @auth(rules: [{allow: public}]) {
  id: ID!
  name: String!
  image: String
  description: String
  price: Float!
  restaurantID: ID! @index(name: "byRestaurant")
}

type Restaurant @model @auth(rules: [{allow: public}]) {
  id: ID!
  name: String!
  image: String!
  deliveryFee: Float!
  minDeliveryTime: Int!
  maxDeliveryTime: Int!
  rating: Float
  address: String!
  lat: Float!
  lng: Float!
  Dishes: [Dish] @hasMany(indexName: "byRestaurant", fields: ["id"])
  Baskets: [Basket] @hasMany(indexName: "byRestaurant", fields: ["id"])
}
 ````
Thank you for your help!

Answer 1

我最终能够通过将我的放大版本降级到"@aws-amplify/cli/@12.0.0.

首先，我卸载了当前版本npm uninstall -g @aws-amplify/cli，然后重新安装了旧版本npm install -g @aws-amplify/cli@12.0.0。

我还遵循了放大页面上的建议，即使用 openjdk 16.0.1。java 版本本身并没有解决问题 - 但是同时拥有这个版本的 jdk 和这个版本的 amplify-cli 我无法成功模拟。