要解决Angular Apollo GraphQL开发工具选项卡不可见的问题,您可以尝试以下解决方案:
确保正确安装了必要的依赖项:
检查代码中的错误:
检查GraphQL配置:
检查选项卡配置:
以下是一个示例代码片段,演示了如何在Angular应用程序中使用Apollo和GraphQL:
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { HttpClientModule } from '@angular/common/http';
import { ApolloModule, Apollo } from 'apollo-angular';
import { HttpLinkModule, HttpLink } from 'apollo-angular-link-http';
import { InMemoryCache } from 'apollo-cache-inmemory';
@NgModule({
imports: [
BrowserModule,
HttpClientModule,
ApolloModule,
HttpLinkModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule {
constructor(apollo: Apollo, httpLink: HttpLink) {
const http = httpLink.create({ uri: 'http://localhost:4000/graphql' }); // Replace with your GraphQL server URL
apollo.create({
link: http,
cache: new InMemoryCache()
});
}
}
import { Component } from '@angular/core';
import { Apollo } from 'apollo-angular';
import { gql } from 'apollo-boost';
@Component({
selector: 'app-root',
template: `
Loading...
Error: {{ error.message }}
- {{ item.name }}
`,
})
export class AppComponent {
loading = true;
error: any;
data: any;
constructor(private apollo: Apollo) {
this.apollo.query({
query: gql`
query {
items {
name
}
}
`
}).subscribe(response => {
this.loading = response.loading;
this.error = response.error;
this.data = response.data;
});
}
}
请注意,这只是一个示例,并不一定适用于您的具体项目。您可能需要根据自己的项目需求进行适当的调整和更改。