React Native fetch Network请求失败，仅使用我的API

Question

仅用户my API fetch Network request使用失败“https://api.douban.com/v2/movie/in_theaters“API正常

react-native cli:1.0.0 react-native:0.32.0

fetch('https://api.chooin.com/v1/product/index')
    .then((res) => alert(res))
    .then((data) => {
        // this.setState({
        //     loaded: true,
        //     products: this.state.products.cloneWithRows(data.subjects)
        // });
    })
    .done();

Answer 1

您需要将第一个res解析为json

fetch('https://api.chooin.com/v1/product/index')
    .then(res => res.json())
    .then(data => {
        return this.setState({
            loaded: true,
            products: this.state.products.cloneWithRows(data.subjects)
        });
    })
    .catch(err => console.log(err));

看看这里https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch