http

X-Cache Header Explanation

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CDN (Content Delivery Network) adds X-cache header to HTTP Response. X-cache:HIT means that your request was served by CDN, not origin servers. CDN is a special network designed to cache content, so that usr request served faster + to unload origin servers.

HTTP basic authentication over SSL for REST API

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Basic authentification is just a standard HTTP header with the user and pass encoded in base64 : Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ== (http://en.wikipedia.org/wiki/Basic_access_authentication) .If you authenticate your rest API calls by this header over a non ssl conection, the problem is that any man in the middle can decode your username and password from your auth header. … Read more

How can I rewrite this CURL multipart/form-data request without using -F?

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Solved: curl \ -X POST \ -H “Content-Type: multipart/form-data; boundary=—————————-4ebf00fbcf09″ \ –data-binary @test.txt \ http://localhost:3000/test Where test.txt contains the following text, and most importantly has CRLF (\r\n) line endings: ——————————4ebf00fbcf09 Content-Disposition: form-data; name=”example” test ——————————4ebf00fbcf09– Notes: it is important to use –data-binary instead of plain old -d as the former preserves the line endings (which … Read more

Not buffered http.ResponseWritter in Golang

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As implied in the documentation, some ResponseWriter may implement the Flusher interface. This means you can do something like this : func handle(res http.ResponseWriter, req *http.Request) { fmt.Fprintf(res, “sending first line of data”) if f, ok := res.(http.Flusher); ok { f.Flush() } else { log.Println(“Damn, no flush”); } sleep(10) //not real code fmt.Fprintf(res, “sending second … Read more

HTTPbis – what does bis mean?

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As others have already said, “bis” comes from “twice” or “repeat”. It’s used to indicate a second variant of something (although usually with only minor variations that don’t warrant a new name). In the context of HTTP, HTTPbis is the name of the working group in charge of refining HTTP. According to its charter: HTTP … Read more

Serving gzipped content for Go

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The New York Times have released their gzip middleware package for Go. You just pass your http.HandlerFunc through their GzipHandler and you’re done. It looks like this: package main import ( “io” “net/http” “github.com/nytimes/gziphandler” ) func main() { withoutGz := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Header().Set(“Content-Type”, “text/plain”) io.WriteString(w, “Hello, World”) }) withGz := gziphandler.GzipHandler(withoutGz) http.Handle(“https://stackoverflow.com/”, … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)