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import React from 'react'; | |
class MicroFrontend extends React.Component { | |
componentDidMount() { | |
const { name, host, document } = this.props; | |
const scriptId = `micro-frontend-script-${name}`; | |
if (document.getElementById(scriptId)) { | |
this.renderMicroFrontend(); | |
return; | |
} | |
fetch(`${host}/asset-manifest.json`) | |
.then(res => res.json()) | |
.then(manifest => { | |
const promises = Object.keys(manifest['files']) | |
.filter(key => key.endsWith('.js')) | |
.reduce((sum, key) => { | |
sum.push( | |
new Promise(resolve => { | |
const path = `${host}${manifest['files'][key]}`; | |
const script = document.createElement('script'); | |
if (key === 'main.js') { | |
script.id = scriptId; | |
} | |
script.onload = () => { | |
resolve(); | |
}; | |
script.src = path; | |
document.head.appendChild(script); | |
}) | |
); | |
return sum; | |
}, []); | |
Promise.allSettled(promises).then(() => { | |
renderMicroFrontend(); | |
}); | |
}); | |
} | |
componentWillUnmount() { | |
const { name, window } = this.props; | |
window[`unmount${name}`] && window[`unmount${name}`](`${name}-container`); | |
} | |
renderMicroFrontend = () => { | |
const { name, window, history } = this.props; | |
window[`render${name}`] && | |
window[`render${name}`](`${name}-container`, history); | |
}; | |
render() { | |
return <main id={`${this.props.name}-container`} />; | |
} | |
} | |
MicroFrontend.defaultProps = { | |
document, | |
window | |
}; | |
export default MicroFrontend; |
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