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export class BlobUpload {
constructor(blob) {
this.blob = blob
this.file = blob.file
this.xhr = new XMLHttpRequest
this.xhr.open("PUT", blob.uploadURL, true)
this.xhr.setRequestHeader("Content-Type", blob.attributes.content_type)
this.xhr.setRequestHeader("Content-MD5", blob.attributes.checksum)
this.xhr.addEventListener("load", event => this.requestDidLoad(event))
this.xhr.addEventListener("error", event => this.requestDidError(event))
}
create(callback) {
this.callback = callback
this.xhr.send(this.file)
}
requestDidLoad(event) {
const { status, response } = this.xhr
if (status >= 200 && status < 300) {
this.callback(null, this.xhr.response)
} else {
this.requestDidError(event)
}
}
requestDidError(event) {
this.callback(`Error storing "${this.file.name}". Status: ${this.xhr.status}`)
}
}
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