135 lines
2.9 KiB
JavaScript
135 lines
2.9 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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* @providesModule XHRExampleFetch
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*/
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'use strict';
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var React = require('react');
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var ReactNative = require('react-native');
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var {
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StyleSheet,
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Text,
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TextInput,
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View,
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Platform,
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} = ReactNative;
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class XHRExampleFetch extends React.Component<any, any> {
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responseURL: ?string;
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responseHeaders: ?Object;
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constructor(props: any) {
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super(props);
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this.state = {
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responseText: null,
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};
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this.responseURL = null;
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this.responseHeaders = null;
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}
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submit(uri: String) {
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fetch(uri).then((response) => {
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this.responseURL = response.url;
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this.responseHeaders = response.headers;
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return response.text();
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}).then((body) => {
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this.setState({responseText: body});
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});
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}
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_renderHeaders() {
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if (!this.responseHeaders) {
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return null;
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}
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var responseHeaders = [];
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var keys = Object.keys(this.responseHeaders.map);
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for (var i = 0; i < keys.length; i++) {
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var key = keys[i];
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var value = this.responseHeaders.get(key);
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responseHeaders.push(<Text>{key}: {value}</Text>);
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}
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return responseHeaders;
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}
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render() {
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var responseURL = this.responseURL ? (
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<View style={{marginTop: 10}}>
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<Text style={styles.label}>Server response URL:</Text>
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<Text>{this.responseURL}</Text>
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</View>
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) : null;
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var responseHeaders = this.responseHeaders ? (
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<View style={{marginTop: 10}}>
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<Text style={styles.label}>Server response headers:</Text>
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{this._renderHeaders()}
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</View>
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) : null;
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var response = this.state.responseText ? (
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<View style={{marginTop: 10}}>
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<Text style={styles.label}>Server response:</Text>
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<TextInput
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editable={false}
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multiline={true}
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defaultValue={this.state.responseText}
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style={styles.textOutput}
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/>
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</View>
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) : null;
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return (
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<View>
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<Text style={styles.label}>Edit URL to submit:</Text>
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<TextInput
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returnKeyType="go"
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defaultValue="http://www.posttestserver.com/post.php"
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onSubmitEditing={(event)=> {
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this.submit(event.nativeEvent.text);
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}}
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style={styles.textInput}
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/>
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{responseURL}
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{responseHeaders}
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{response}
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</View>
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);
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}
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}
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var styles = StyleSheet.create({
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textInput: {
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flex: 1,
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borderRadius: 3,
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borderColor: 'grey',
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borderWidth: 1,
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height: Platform.OS === 'android' ? 44 : 30,
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paddingLeft: 8,
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},
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label: {
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flex: 1,
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color: '#aaa',
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fontWeight: '500',
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height: 20,
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},
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textOutput: {
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flex: 1,
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fontSize: 17,
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borderRadius: 3,
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borderColor: 'grey',
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borderWidth: 1,
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height: 200,
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paddingLeft: 8,
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},
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});
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module.exports = XHRExampleFetch;
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