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simple typescript xhr using promises
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module XHR { | |
export class Header { | |
header: string; | |
data: string; | |
constructor(header: string, data: string) { | |
this.header = header; | |
this.data = data; | |
} | |
} | |
export class Data { | |
Headers: string; | |
Body: string; | |
Text: string; | |
Type: string; | |
Status: number; | |
StatusText: string; | |
} | |
function DataFromJSXHR(jsXHR: XMLHttpRequest): Data { | |
var data = new Data(); | |
data.Headers = jsXHR.getAllResponseHeaders(); | |
data.Body = jsXHR.responseBody; | |
data.Text = jsXHR.responseText; | |
data.Type = jsXHR.responseType; | |
data.Status = jsXHR.status; | |
data.StatusText = jsXHR.statusText; | |
return data; | |
} | |
function SendCommand( | |
method: string, | |
url: string, | |
headers: Array<Header>, | |
data: string = ""): Q.Promise<Data> { | |
var defer = Q.defer<Data>(); | |
var jsXHR = new XMLHttpRequest(); | |
jsXHR.open(method, url); | |
if (headers != null) | |
headers.forEach(header=> | |
jsXHR.setRequestHeader(header.header, header.data)); | |
jsXHR.onload = (ev) => { | |
if (jsXHR.status < 200 || jsXHR.status >= 300) { | |
defer.reject(DataFromJSXHR(jsXHR)); | |
} | |
defer.resolve(DataFromJSXHR(jsXHR)); | |
} | |
jsXHR.onerror = (ev) => { | |
defer.reject('Error ' + method.toUpperCase() + 'ing data to url "' + url + '", check that it exists and is accessible'); | |
}; | |
if (method == 'POST') | |
jsXHR.send(data); | |
else | |
jsXHR.send(); | |
return defer.promise; | |
} | |
export function Get( | |
url: string, | |
headers: Array<Header> = null): Q.Promise<Data> { | |
return SendCommand('GET', url, headers); | |
} | |
export function Post( | |
url: string, | |
data:string="", | |
headers: Array<Header> = null): Q.Promise<Data> { | |
return SendCommand('POST', url, headers, data); | |
} | |
} |
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