我正在使用 apollo 设置服务器端渲染，以便在服务器端设置 graphql，但是当我尝试在 cli 中出现的一个组件中使用查询时，我现在不知道如何遇到这个问题:
(node:4440) UnhandledPromiseRejectionWarning: Error: Network error: Only absolute URLs are supported
at new ApolloError (G:\Project\node_modules\apollo-client\bundle.umd.js:59:32)
at QueryManager.<anonymous> (G:\Project\node_modules\apollo-client\bundle.umd.js:13:49)
如果您现在发生了什么，请告诉我。
服务器代码
import React from 'react'
import routes from '../../client/Routes'
import {StaticRouter} from 'react-router-dom'
import {Provider} from 'react-redux'
import {renderRoutes} from 'react-router-config'
import {AES} from 'crypto-js';
import {Helmet} from "react-helmet";
import serialize from 'serialize-javascript' ;
import ApolloClient from 'apollo-client';
import { ApolloProvider, renderToStringWithData } from 'react-apollo';
import { InMemoryCache } from "apollo-cache-inmemory";
import { ApolloLink } from 'apollo-link';
import { errorLink , queryOrMutationLink , getCircularReplacer } from './links';
import fetch from 'node-fetch';
export default async(req,store,context)=>{
const links = [errorLink,queryOrMutationLink({
fetch,
uri: 'http:localhost:3000/api/graphql',
})]
const client = new ApolloClient({
ssrMode: true,
link:ApolloLink.from(links),
cache: new InMemoryCache()
});
const component = (
<ApolloProvider client={client}>
<Provider store={store}>
<StaticRouter location={req.path} context={context}>
{renderRoutes(routes)}
</StaticRouter>
</Provider>
</ApolloProvider>
)
return renderToStringWithData(component).then(content=>{
let serializedStore = serialize(store.getState())
let hashedUsersList = AES.encrypt(serializedStore, 'secret key 123');
const helmet = Helmet.renderStatic();
return `
<html>
<head>
${helmet.title.toString()}
${helmet.meta.toString()}
${helmet.link.toString()}
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.98.0/css/materialize.min.css">
<link href="http://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<script>window.INITIAL_STATE = ${JSON.stringify(hashedUsersList, getCircularReplacer())}</script>
</head>
<body>
<div id="root">${content}</div>
<script src="/public-bundle.js"></script>
<script>window.__APOLLO_STATE__=${JSON.stringify(client.extract(),getCircularReplacer())}</script>
</body>
</html>`
})
}
import React from 'react';
import {hydrate}from 'react-dom';
//-----------Redux
import {Provider} from 'react-redux';
import {createStore, applyMiddleware,compose} from 'redux';
import thunk from 'redux-thunk';
import {AES,enc,} from 'crypto-js'
import axios from 'axios'
//-----------Router
import {BrowserRouter} from 'react-router-dom';
import routes from './Routes';
import {renderRoutes} from 'react-router-config'
//-----------Internal_import
import reducers from './store/reducers';
//-----------GraphQL[APOLLO_CLIENT]
import ApolloClient from 'apollo-client';
import { InMemoryCache } from 'apollo-cache-inmemory';
import { createHttpLink } from 'apollo-link-http';
import { ApolloProvider } from 'react-apollo';
import {fetch} from 'node-fetch';
const client = new ApolloClient({
connectToDevTools: true,
link: createHttpLink({
uri: 'http:localhost:3000/api/graphql',
credentials:'same-origin'
}),
cache: new InMemoryCache({dataIdFromObject:o=>o.id}).restore(window.__APOLLO_STATE__),
})
const axiosInstance = axios.create({baseURL: '/api'});
const composeEnhancers = typeof window === 'object' && window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ ?window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__({}) : compose;
const enhancer = composeEnhancers(applyMiddleware(thunk.withExtraArgument(axiosInstance)));
let DecryptUsersList = AES.decrypt(window.INITIAL_STATE, 'secret key 123');
let UsersList_State = JSON.parse(DecryptUsersList.toString(enc.Utf8))
const store = createStore(reducers,UsersList_State,enhancer)
hydrate(
<ApolloProvider client={client}>
<Provider store={store}>
<BrowserRouter>
{renderRoutes(routes)}
</BrowserRouter>
</Provider>
</ApolloProvider>
,document.querySelector('#root')
)
import React, { Component } from 'react';
import { Link } from 'react-router-dom';
import {connect} from 'react-redux';
import {graphql} from 'react-apollo';
import gql from 'graphql-tag';
const Header = (props)=>{
console.log(props)
const renderButtons=()=>{
if (props.user) {
return (
<div>
<li><Link to="/admins">Admins</Link></li>
<li><a href="/api/logout">Logout</a></li>
</div>
);
} else {
return (
<div>
<li>
<Link to="/users">Users</Link>
</li>
<li>
<Link to="/admins">Admins</Link>
</li>
<li>
<Link to="/Signin">SignIn</Link>
</li>
<li>
<Link to="/Signup">SignUp</Link>
</li>
<li>
<a href="/api/auth/google">Login via google</a>
</li>
</div>
);
}
}
return (
<nav>
<div className="nav-wrapper">
<Link to="/" className="brand-logo left">
Home
</Link>
<ul className="right">
{renderButtons()}
</ul>
</div>
</nav>
);
}
const query = gql`
{
user{
id
email
name
}
}
`
const mapStateToProps =({auth})=>({user:auth.user})
export default connect(mapStateToProps,null)(graphql(query)(Header));
最佳答案
您的网址似乎有拼写错误 而不是:
uri: 'http:localhost:3000/api/graphql',
您需要使用:
uri:'http://localhost:3000/api/graphql'，
使用 apollo 绝对 url 意味着 api url 必须以 http:// 或 https://
关于node.js - 如何修复错误:only absolute URLS are supported in react ssr graphql，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55312868/