67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
// Some utility functions to tidy up my Golang.
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package utils
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import (
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"net/http/httputil"
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)
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// Call log.Fatal with `err` when it's not nil.
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func FailOn(err error) {
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if err != nil {
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log.Fatal(err)
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}
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}
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// Prints the verbose form of an HTTP request.
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func DebugRequest(req *http.Request) {
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bytes, _ := httputil.DumpRequest(req, true)
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fmt.Println(string(bytes))
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}
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// Prints out the verbose form of an HTTP response.
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func DebugResponse(res *http.Response) {
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bytes, _ := httputil.DumpResponse(res, true)
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fmt.Println(string(bytes))
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}
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// Make a simple GET request to `url`. Fail if anything returns an error. I'd
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// like to accumulate a library of these, so that I can write scrappy Go
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// quickly. For now, this function just returns the body of the response back as
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// a string.
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func SimpleGet(url string, headers map[string]string, debug bool) string {
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client := &http.Client{}
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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log.Fatal(err)
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}
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for k, v := range headers {
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req.Header.Add(k, v)
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}
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res, err := client.Do(req)
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if err != nil {
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log.Fatal(err)
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}
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defer res.Body.Close()
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if debug {
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DebugRequest(req)
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DebugResponse(res)
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}
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if res.StatusCode == http.StatusOK {
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bytes, err := ioutil.ReadAll(res.Body)
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if err != nil {
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log.Fatal(err)
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}
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return string(bytes)
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} else {
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log.Println(res)
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log.Fatalf("HTTP status code of response not OK: %v\n", res.StatusCode)
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return ""
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}
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}
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