我有一个简单的 todo react 应用程序通过放大连接到 AppSync。查询和突变由 Amplify 自动生成。
使用graphqlMutation助手,我的查询应该在运行我的突变后自动更新,但它不起作用。刷新后,我确实看到突变正在更新 AppSync 后端,但我也希望它会立即更新并给出乐观的响应。
这是代码:
import React, { Component } from "react";
import gql from "graphql-tag";
import { compose, graphql } from "react-apollo";
import { graphqlMutation } from "aws-appsync-react";
import { listTodos } from "./graphql/queries";
import { createTodo, deleteTodo } from "./graphql/mutations";
class App extends Component {
state = { todo: "" };
addTodo = async () => {
if (this.state.todo === "") {
return;
}
const response = await this.props.createTodo({
input: {
name: this.state.todo,
completed: false
}
});
this.setState({ todo: "" });
console.log("response", response);
};
deleteTodo = async id => {
const response = await this.props.deleteTodo({ input: { id } });
console.log("response", response);
};
render() {
return (
<div>
<div>
<input
onChange={e => this.setState({ todo: e.target.value })}
value={this.state.todo}
placeholder="Enter a name..."
/>
<button onClick={this.addTodo}>Add</button>
</div>
{this.props.todos.map(item => (
<div key={item.id}>
{item.name}{" "}
<button onClick={this.deleteTodo.bind(this, item.id)}>
remove
</button>
</div>
))}
</div>
);
}
}
export default compose(
graphqlMutation(gql(createTodo), gql(listTodos), "Todo"),
graphqlMutation(gql(deleteTodo), gql(listTodos), "Todo"),
graphql(gql(listTodos), {
options: {
fetchPolicy: "cache-and-network"
},
props: props => ({
todos: props.data.listTodos ? props.data.listTodos.items : []
})
})
)(App);
包含代码库的 repo 在这里:https ://github.com/jbrown/appsync-todo
我在这里做错了什么,我的查询没有更新?