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问题描述
我有一个要包装到apollo提供程序中的 App
组件:
I have a App
component that I am wrapping into a apollo provider:
import React, { Component } from "react";
import { observer, Provider } from "mobx-react";
import { BrowserRouter as Router } from "react-router-dom";
import styled from "styled-components";
import { ThemeProvider } from "styled-components";
// graphQL
import { ApolloClient } from "apollo-client";
import { createHttpLink } from "apollo-link-http";
import { setContext } from "apollo-link-context";
import { InMemoryCache } from "apollo-cache-inmemory";
import Main from "./components/Main/Main";
import Navigation from "./components/Navigation/Navigation";
import { ApolloProvider } from "react-apollo";
const httpLink = createHttpLink({
uri: "myUri"
});
const authLink = setContext((_, { headers }) => {
// get the authentication token from local storage if it exists
const token = "myToken";
// return the headers to the context so httpLink can read them
return {
headers: {
...headers,
authorization: token ? `Bearer ${token}` : null
}
};
});
const mozaikClient = new ApolloClient({
link: authLink.concat(httpLink),
cache: new InMemoryCache()
});
@observer
class App extends Component {
render() {
return (
<ThemeProvider theme={theme}>
<ApolloProvider client={mozaikClient}>
<Provider {...this.props.stores}>
<Router>
<div className="app-container">
<Navigation />
<Main />
</div>
</Router>
</Provider>
</ApolloProvider>
</ThemeProvider>
);
}
}
export default App;
然后,我具有要使用提供程序数据的About组件:
Then I have the About component that I want to consume the provider data:
import React, { Component } from "react";
import { gql, graphql } from "react-apollo";
class About extends Component {
render() {
return <div>About component.</div>;
}
}
const landingPageQuery = gql`
query landingPage {
documents(types: [LANDING]) {
items {
id
... on LandingDocument {
landingPortrait {
id
url
}
greeting
content
}
}
}
}
`;
export default graphql(landingPageQuery)(About);
我遇到以下错误:
此错误来自何处,为什么产生?它是什么意思?它指向我使用 gql
Where and why is this error coming from, and what does it mean? It is pointing to the line where I am defining my query using gql
推荐答案
这似乎是一个已知问题-请参见此处.尝试安装 graphql-tag
并从该库中导入 gql
.
This seems like a known issue - see here.Try installing graphql-tag
and importing gql
from this library.
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