如何在Next.js应用程序中实例化和使用Chirp WebAssembly SDK?
使用如何在Next.js应用程序中实例化和使用Chirp WebAssembly SDK?,next.js,chirp,Next.js,Chirp,使用chirp js sdk对于Next.js来说不是问题,但是由于我的应用程序需要在浏览器上接收chirp发送的数据,所以我不得不使用WebAssembly sdk。在何处以及如何实例化和使用chirpsdk 如前所述,我在设置它时没有遇到任何问题。 但是,onReceived,onReceived回调不会被调用 这是我在中使用的chirpsdk的页面片段 class AttendEvent extends Component { static async getInitialPro
chirp js sdk
对于Next.js来说不是问题,但是由于我的应用程序需要在浏览器上接收chirp
发送的数据,所以我不得不使用WebAssembly sdk。在何处以及如何实例化和使用chirpsdk
如前所述,我在设置它时没有遇到任何问题。
但是,onReceived
,onReceived
回调不会被调用
这是我在中使用的chirpsdk
的页面片段
class AttendEvent extends Component {
static async getInitialProps({req, query, res}) {
return {
attendString: query
}
}
constructor() {
super();
this.sdk = null;
this.state = {
user: '',
started: false,
waiting: false,
receiving: false,
received: 'Awaiting messages..',
disabled: false
}
}
toAscii(payload) {
let str = ''
for (let i = 0; i < payload.length; i++) {
str += String.fromCharCode(payload[i])
}
return str
}
async startSDK() {
this.sdk = await import ('../node_modules/chirpsdk/index').then( ({Chirp}) => {
return Chirp({
key: CHIRP_API_KEY,
onReceiving: () => {
console.log('Receving Data');
this.setState({
...this.state,
received: '...',
disabled: true
})
},
onReceived: data => {
console.log("Received Data");
if (data.length > 0) {
this.setState({
...this.state,
received: this.toAscii(data),
disabled: false
})
} else {
this.setState({
...this.state,
received: `I didn't hear that. Try turning the volume up?`,
disabled: false
})
}
}
})
})
this.setState({
...this.state,
started: true
})
}
componentDidMount() {
loadFirebase().auth().onAuthStateChanged(user => {
if (user) {
this.setState({
...this.state,
user: user
})
return user
.getIdToken()
.then(token => {
return fetch('/api/login', {
method: 'POST',
headers: new Headers({ 'Content-Type': 'application/json' }),
credentials: 'same-origin',
body: JSON.stringify({ token })
})
})
} else {
Router.push('/');
}
})
this.setState({
...this.state,
waiting: true
})
}
handleLogout() {
loadFirebase().auth().signOut()
}
render() {
const { classes } = this.props;
return (
<React.Fragment>
<Navbar page="AttendEvent" />
{
this.state.user !== null ? (
<Grid
container
spacing={0}
direction="row"
alignItems="center"
justify="center"
style={{ minHeight: '90vh' }}
>
<Typography variant="h1">
{
this.state.waiting ? "Waiting for code..." : (this.state.receiving ? "Receiving code...": (this.state.received ? this.state.received : "Mounting...") )
}
</Typography> <br/>
<Button variant="contained" color="primary" onClick={() => {
this.startSDK()
}}>
START
</Button>
</Grid>) : true
}
</React.Fragment>);
}
}
class AttentEvent扩展组件{
静态异步getInitialProps({req,query,res}){
返回{
出席人数:查询
}
}
构造函数(){
超级();
this.sdk=null;
此.state={
用户:“”,
开始:错,
等待:错,
接收:错误,
收到:“正在等待消息…”,
禁用:false
}
}
toAscii(有效载荷){
设str=''
for(设i=0;i{
回音啁啾({
键:CHIRP_API_键,
接收时:()=>{
console.log(“接收数据”);
这是我的国家({
…这个州,
收到:“…”,
残疾人士:对
})
},
onReceived:data=>{
控制台日志(“收到的数据”);
如果(data.length>0){
这是我的国家({
…这个州,
收到:this.toAscii(数据),
禁用:false
})
}否则{
这是我的国家({
…这个州,
received:‘我没听到。试着把音量调大些?’,
禁用:false
})
}
}
})
})
这个.setState({
…这个州,
开始:对
})
}
componentDidMount(){
loadFirebase().auth().onAuthStateChanged(用户=>{
如果(用户){
这是我的国家({
…这个州,
用户:用户
})
返回用户
.getIdToken()文件
。然后(令牌=>{
返回fetch(“/api/login”{
方法:“POST”,
标题:新标题({'Content Type':'application/json'}),
凭据:“相同来源”,
正文:JSON.stringify({token})
})
})
}否则{
路由器推送('/');
}
})
这是我的国家({
…这个州,
等待:真的
})
}
handleLogout(){
loadFirebase().auth().signOut()
}
render(){
const{classes}=this.props;
返回(
{
this.state.user!==null(
{
this.state.waiting?“等待代码…”:(this.state.receiving?“接收代码…”:(this.state.received?this.state.received:“装载…”)
}
{
this.startSDK()
}}>
开始
):对
}
);
}
}
我希望在收到
16kHz mono
音频消息时调用onReceived
回调,但它没有被调用。找到了解决我自己问题的方法,这似乎很有效
问题在于动态导入和承诺的处理方式
async startSDK() {
this.sdk = await import ('../node_modules/chirpsdk/index')
.then(({Chirp}) => {
return Chirp ({
// rest of the initialisation parameters
})
)
.catch( error => {
console.log(error.message);
}
this.setState({
...this.state,
started: true
})
}
这本该是怎么做的。尽管如此,这也可以用then..catch
完成
async startSDK(){
try {
const chirp = await import('../node_modules/chirpsdk/index');
const { Chirp } = chirp;
this.sdk = await Chirp ({
// rest of the initialisation parameters
)}
}
catch (err) {
console.log(err);
}
this.setState({
...this.state,
started: true
})
}
关于为什么使用动态导入的旁注
起初,我认为Next.js会像React一样处理chirpsdk
的导入。但是,我认为,由于Next的SSR特性,导入无法按预期工作,这是抛出的错误:
Assertion failed: undefined
Assertion failed: undefined
abort("Assertion failed: undefined") at Error
at /Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:10515
at z (/Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:10647)
at sn (/Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:75732)
at O (/Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:5568)
at Ne (/Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:14094)
at /Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:22110
at Object.openDatabase (/Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:21497)
at Object.staticInit (/Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:21983)
at /Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:27857
at E.locateFile (/Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:131)
at Object.<anonymous> (/Users/warrenwhite/Documents/MajorProj/faculty-dashboard-app-ssr/node_modules/chirpsdk/index.js:1:226)
at Module._compile (module.js:653:30)
at Object.Module._extensions..js (module.js:664:10)
at Module.load (module.js:566:32)
at tryModuleLoad (module.js:506:12)
at Function.Module._load (module.js:498:3)
断言失败:未定义
断言失败:未定义
出现错误时中止(“断言失败:未定义”)
at/Users/warrenwhite/Documents/MajorProj/faculty dashboard app ssr/node_modules/chirpsdk/index.js:1:10515
在z(/Users/warrenwhite/Documents/MajorProj/faculty dashboard app ssr/node_modules/chirpsdk/index.js:1:10647)
在sn(/Users/warrenwhite/Documents/MajorProj/faculty dashboard app ssr/node_modules/chirpsdk/index.js:1:75732)
在O(/Users/warrenwhite/Documents/MajorProj/faculty dashboard app ssr/node_modules/chirpsdk/index.js:1:5568)
在Ne(/Users/warrenwhite/Documents/MajorProj/faculty dashboard app ssr/node_modules/chirpsdk/index.js:1:14094)
at/Users/warrenwhite/Documents/MajorProj/faculty dashboard app ssr/node_modules/chirpsdk/index.js:1:22110
在Object.openDatabase(/Users/warrenwhite/Documents/MajorProj/faculty dashboard app ssr/node_modules/chirpsdk/index.js:1:21497)
位于Object.staticInit(/Users/warrenwhite/Documents/MajorProj/faculty dashboard app ssr/node_modules/chirpsdk/index.js:1:21983)
at/Users/warrenwhite/Documents/MajorProj/faculty dashboard应用程序ssr/node_modules/chirpsdk/index