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request.ts
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request.ts
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export default class Request {
instance;
constructor(instance) {
this.instance = instance;
}
public currentRequest;
public send(url: string, method: 'GET' | 'POST', callback: (data: object) => void, data?: string, headers: {key: string, value: string | boolean}[] = []): void {
this.currentRequest = new XMLHttpRequest();
this.currentRequest.open(method, url, true);
this.currentRequest.timeout = 5000; // 5 seconds
this.currentRequest.setRequestHeader('auth-token', this.instance.options.token);
this.currentRequest.setRequestHeader('Content-Type', 'application/json');
this.currentRequest.setRequestHeader('Accept', 'application/json');
// Add additional headers if supplied
headers.forEach(header => this.currentRequest.setRequestHeader(header.key, header.value));
this.currentRequest.onload = (xhr) => {
if (this.currentRequest.status >= 200 && this.currentRequest.status < 400) {
// Success!
const data = JSON.parse(this.currentRequest.responseText);
callback(data);
} else {
// We reached our target server, but it returned an error
this.instance.searchSpinner.hide();
// Fire an event to notify users of a general error
this.instance.events.trigger('request-error', xhr);
// Fire an event for the specific status code
this.instance.events.trigger(`request-error-${this.currentRequest.status}`, xhr);
}
};
this.currentRequest.onerror = (xhr) => {
// There was a connection error of some sort
// Hide the inline search spinner
this.instance.searchSpinner.hide();
// Fire an event to notify users of an error
this.instance.events.trigger('request-error', xhr);
};
this.currentRequest.ontimeout = (xhr) => {
// There was a connection timeout
// Hide the inline search spinner
this.instance.searchSpinner.hide();
// Fire an event to notify users of the timeout
this.instance.events.trigger('request-timeout', xhr);
};
this.currentRequest.send(data);
}
}