Reply Builder
Framework provides Reply
builder (aka Response Builder) to compose your response effectively. You can do Chained call.
Table of Contents
- Response Status Codes
- Response Content
- Redirect
- Replying HTTP Headers
- Cookie
- Disable Gzip
- Done()
- Just Few Sample
Response Status Codes
As per RFC7231, provides method for frequently used ones.
Ok()
Created()
Accepted()
NoContent()
MovedPermanently()
Found()
TemporaryRedirect()
BadRequest()
Unauthorized()
Forbidden()
NotFound()
MethodNotAllowed()
Conflict()
InternalServerError()
ServiceUnavailable()
ohh, the response status I need is not in the above list, no problem; just use Reply().Status(http.StatusPartialContent)
or Reply().Status(206)
Response Content
Rich reply methods for the response.
HTML(data)
HTMLl(layout, data)
HTMLf(filename, data)
HTMLlf(layout, filename, data)
JSON(data)
JSONP(data, callback)
XML(data)
Text(str)
Text(str, args)
Readfrom(reader)
File(file)
FileDownload(file, targetName)
- Content-Disposition is attachmentFileInline(file, targetName)
- Content-Disposition is inlineBinary(bytes)
Redirect
Redirect(url)
RedirectSts(url, statusCode)
Replying HTTP Headers
Header(hdr, value)
HeaderAppend(hdr, value)
Cookies
Cookie(cookie)
Disable Gzip
By default framework doesn’t apply Gzip compression for Status Codes 204, 304 and if client doesn’t support gzip. On top of it framework provides DisableGzip
method as an option to disable gzip
compression for a particular response.
Reply().DisableGzip()
Done()
Done method indicates that reply has already been sent via aah.Context.Res
and that no further action is needed.
Note: Framework doesn’t intervene with response if Done()
method was called.
Just Few Samples
Refer to Response Status Codes and Response Content to know more.
// Replying JSON with Status Code 200 OK
Reply().Ok().JSON(data)
// Default Status Code is 200 OK, so you can do
Reply().JSON(data)
// Replying JSON with Status Code 400 BAD REQUEST
Reply().BadRequest().JSON(data)
// Replying file as an attachment from absolute path
// Default Status Code is 200 OK
Reply().FileDownload("/User/jeeva/songs/nice.mp3", "name-nice.mp3")
// I just want serve file from controller
// If file param is relative path, framework resolves it from `static` directory
// like <app-base-dir>/static/reports/daily.pdf
Reply().File("reports/daily.pdf")
// I would like to send binary data
Reply().Binary(bytes)
// I would like to use Reader
Reply().Readfrom(reader)
// Replying redirect login page using `route name`
Reply().Redirect(c.ReverseURL("user_login"))
// Replying HTML response with cookie and view arguments
Reply().
Cookie(&http.Cookie{
//....
}).
HTML(data)
// Replying HTML response with custom layout and data
Reply().HTMLl("master-custom.html", data)