尝试从反应应用程序连接到 graphcool 中继 API 时出现此错误：模块构建失败：错误：没有有效的 GraphQL 端点

Posted 2023-03-10

【中文标题】尝试从反应应用程序连接到 graphcool 中继 API 时出现此错误：模块构建失败：错误：没有有效的 GraphQL 端点

【英文标题】：I get this error when trying to connect to a graphcool relay API from a react app: Module build failed: Error: No valid GraphQL endpoint

【发布时间】：2018-05-24 10:30:18

【问题描述】：

我正在学习 Lynda.com 的教程“部署全栈反应应用程序”。我正在使用'create-react-app 项目来搭建我的项目。由于某种未知原因，我的应用程序无法访问 api，我可以直接访问该 api，而浏览器上没有任何问题。这是我的 package.json 文件，每当我运行“yarn start”时都会收到错误消息。

  
  "name": "tictacturing",
  "version": "0.1.0",
  "private": true,
  "dependencies": 
    "autoprefixer": "7.1.6",
    "babel-core": "6.26.0",
    "babel-eslint": "7.2.3",
    "babel-jest": "20.0.3",
    "babel-loader": "7.1.2",
    "babel-preset-react-app": "^3.1.0",
    "babel-runtime": "6.26.0",
    "case-sensitive-paths-webpack-plugin": "2.1.1",
    "chalk": "1.1.3",
    "css-loader": "0.28.7",
    "dotenv": "4.0.0",
    "eslint": "4.10.0",
    "eslint-config-react-app": "^2.0.1",
    "eslint-loader": "1.9.0",
    "eslint-plugin-flowtype": "2.39.1",
    "eslint-plugin-import": "2.8.0",
    "eslint-plugin-jsx-a11y": "5.1.1",
    "eslint-plugin-react": "7.4.0",
    "extract-text-webpack-plugin": "3.0.2",
    "file-loader": "1.1.5",
    "fs-extra": "3.0.1",
    "html-webpack-plugin": "2.29.0",
    "jest": "20.0.4",
    "object-assign": "4.1.1",
    "postcss-flexbugs-fixes": "3.2.0",
    "postcss-loader": "2.0.8",
    "promise": "8.0.1",
    "raf": "3.4.0",
    "react": "^16.2.0",
    "react-dev-utils": "^4.2.1",
    "react-dom": "^16.2.0",
    "react-relay": "^1.4.1",
    "relay-runtime": "^1.4.1",
    "style-loader": "0.19.0",
    "sw-precache-webpack-plugin": "0.11.4",
    "url-loader": "0.6.2",
    "webpack": "3.8.1",
    "webpack-dev-server": "2.9.4",
    "webpack-manifest-plugin": "1.3.2",
    "whatwg-fetch": "2.0.3"
  ,
  "scripts": 
    "start": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjazdk3jg0yj70197193cltrf && node scripts/start.js",
    "build": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjazdk3jg0yj70197193cltrf && node scripts/build.js",
    "test": "node scripts/test.js --env=jsdom"
  ,
  "jest": 
    "collectCoverageFrom": [
      "src/**/*.js,jsx,mjs"
    ],
    "setupFiles": [
      "<rootDir>/config/polyfills.js"
    ],
    "testMatch": [
      "<rootDir>/src/**/__tests__/**/*.js,jsx,mjs",
      "<rootDir>/src/**/?(*.)(spec|test).js,jsx,mjs"
    ],
    "testEnvironment": "node",
    "testURL": "http://localhost",
    "transform": 
      "^.+\\.(js|jsx|mjs)$": "<rootDir>/node_modules/babel-jest",
      "^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
      "^(?!.*\\.(js|jsx|mjs|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
    ,
    "transformIgnorePatterns": [
      "[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs)$"
    ],
    "moduleNameMapper": 
      "^react-native$": "react-native-web"
    ,
    "moduleFileExtensions": [
      "web.js",
      "mjs",
      "js",
      "json",
      "web.jsx",
      "jsx",
      "node"
    ]
  ,
  "babel": 
    "plugins": [
      "react-relay"
    ],
    "presets": [
      "react-app"
    ]
  ,
  "eslintConfig": 
    "extends": "react-app"
  ,
  "devDependencies": 
    "babel-plugin-react-relay": "^0.10.0",
    "eslint": "^4.10.0",
    "eslint-plugin-react": "^7.4.0"
  

【参考方案1】：

更新这两行：

"start": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjazdk3jg0yj70197193cltrf && node scripts/start.js",
"build": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjazdk3jg0yj70197193cltrf && node scripts/build.js",

这两行：

"start": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjazdk3jg0yj70197193cltrf&&node scripts/start.js",
"build": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjazdk3jg0yj70197193cltrf&&node scripts/build.js",

&& 之间和周围不应有空格。如果这解决了您的问题，请将其标记为正确答案

【讨论】：

哇！很棒的答案.. 我从没想过要删除脚本中 && 上的空格。谢谢卡兰！

【参考方案2】：

您最初是如何创建服务的？

看起来您可能只在本地创建了它。

https://api.graph.cool/relay/v1/cjazdk3jg0yj70197193cltrf 确实不是有效的 GraphQL 端点，它不存在。

编辑：

更新这两行

"start": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjazdk3jg0yj70197193cltrf && node scripts/start.js",
"build": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjazdk3jg0yj70197193cltrf && node scripts/build.js",

到

"start": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjb223en111od0191dzu1vba4 && node scripts/start.js",
"build": "set GRAPHQL_ENDPOINT=https://api.graph.cool/relay/v1/cjb223en111od0191dzu1vba4 && node scripts/build.js",

当您删除项目cjazdk3jg0yj70197193cltrf 时，端点也被删除。

【讨论】：

我在 console.graph.cool 上创建了项目。这是新端点“api.graph.cool/relay/v1/cjb223en111od0191dzu1vba4”。我在解决问题时取下了旧的。该服务是在 graph.cool 上创建的

您好 marktani，端点已更新。但问题仍然存在。问题是为什么当端点明确存在并且可以访问时我会收到此错误。

请分享更多关于您的项目设置的信息，它看起来像是您的一个文件中的配置错误:)