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node.js - SyntaxError: Unexpected token { 编译我的 node.js 代码时

问题描述

当我尝试运行 grandstack neo4j graphql api 应用程序时，每次第一次“导入”时都会出现以下错误。

PS C:\Users\grand-stack-starter-master\api> nodemon index.js
[nodemon] 1.19.1
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `node index.js src/index.js`
C:\Users\grand-stack-starter-master\api\src\index.js:1
import { typeDefs } from "./graphql-schema";
       ^

SyntaxError: Unexpected token {
    at Module._compile (internal/modules/cjs/loader.js:723:23)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)
[nodemon] app crashed - waiting for file changes before starting...

下面是我的 grandstack node.js 代码

import { typeDefs } from "./graphql-schema";
import { ApolloServer } from "apollo-server";
import { v1 as neo4j } from "neo4j-driver";
import { makeAugmentedSchema } from "neo4j-graphql-js";
import dotenv from "dotenv";

// set environment variables from ../.env
dotenv.config();


const schema = makeAugmentedSchema({
  typeDefs
});


const driver = neo4j.driver(
  process.env.NEO4J_URI || "bolt://localhost:7687",
  neo4j.auth.basic(
    process.env.NEO4J_USER || "neo4j",
    process.env.NEO4J_PASSWORD || "xxxx"
  )
);


const server = new ApolloServer({
  context: { driver },
  schema: schema
});

server.listen(process.env.GRAPHQL_LISTEN_PORT, "0.0.0.0").then(({ url }) => {
  console.log(`GraphQL API ready at ${url}`);
});

对于每个导入语句，我都会收到此错误。如果我从代码中删除有问题的导入（例如：import { typeDefs } from "./graphql-schema";) 那么我在下一次导入时会遇到相同的错误，如下所示

import { ApolloServer } from "apollo-server";
       ^

SyntaxError: Unexpected token {
    at Module._compile (internal/modules/cjs/loader.js:723:23)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)
[nodemon] app crashed - waiting for file changes before starting...

有人可以帮我确定哪里出了问题

标签： node.jsneo4jgraphqlgrandstack

解决方案

就我而言，使用该命令时我在错误的文件夹中，对于遇到相同问题的其他人，这也可能是原因，因此请确保您在服务器文件夹中。我的案例是 Express.js。

快乐编码！

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