This library contains a HTTP client, and a number of useful middlewares for writing a HTTP client and server in Go. For more information and package documentation, please see the godoc documentation.
The Client struct makes it easy to interact with a JSON API.
client := rest.NewClient("username", "password", "http://ipinfo.io")
req, _ := client.NewRequest("GET", "/json", nil)
type resp struct {
City string `json:"city"`
Ip string `json:"ip"`
}
var r resp
client.Do(req, &r)
fmt.Println(r.Ip)Use the rest.Transport as the http.Transport to easily inspect the raw HTTP
request and response. Set DEBUG_HTTP_TRAFFIC=true in your environment to dump
HTTP requests and responses to stderr.
rest exposes a number of HTTP error handlers - for example,
rest.ServerError(w, r, err) will write a 500 server error to w. By default,
these error handlers will write a generic JSON response over the wire, using
fields specified by the HTTP problem spec.
You can define a custom error handler if you like (say if you want to return a HTML server error, or 404 error or similar) by calling RegisterHandler:
rest.RegisterHandler(500, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
err := rest.CtxErr(r)
fmt.Println("Server error:", err)
w.Header().Set("Content-Type", "text/html")
w.WriteHeader(500)
w.Write([]byte("<html><body>Server Error</body></html>"))
}))Set the DEBUG_HTTP_TRAFFIC environment variable to print out all
request/response traffic being made by the client.
rest also includes a Transport that is a drop in for a http.Transport,
but includes support for debugging HTTP requests. Add it like so:
client := http.Client{
Transport: &rest.Transport{
Debug: true,
Output: os.Stderr,
Transport: http.DefaultTransport,
},
}Donations free up time to make improvements to the library, and respond to bug reports. You can send donations via Paypal's "Send Money" feature to [email protected]. Donations are not tax deductible in the USA.
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