Merge pull request #41 from donutloop/feature/prettydumpresponse

Feature/prettydumpresponse

Author: donutloop

debugutil/README.md

@@ -1,6 +1,6 @@
 # Usage
 
-PrettySprint generates a human readable representation of the value v.
+PrettySprint creates a human readable representation of the value v.
 
 ## Example 
 ```go 
@@ -12,6 +12,30 @@ import (
 )
 
 func main() {
-    log.Println(debugutil.PrettySprint([]string{})
+    log.Println(debugutil.PrettySprint([]string{}))
+}
+```
+
+PrettyResponseDump creates a human readable representation of the value http.Response.
+
+## Example 
+
+```go 
+package main 
+
+import (
+	"github.com/donutloop/toolkit/debugutil"
+	"log"
+	"net/http"
+)
+
+func main() {
+
+    resp := &http.Response{}
+    s , err := debugutil.PrettySprintResponse(resp)
+    if err != nil {
+        log.Fatal(err)
+    }    
+    log.Println(s)
 }
 ```

debugutil/doc_test.go

@@ -2,7 +2,6 @@ package debugutil_test
 
 import (
 	"fmt"
-
 	"github.com/donutloop/toolkit/debugutil"
 )
 
@@ -12,4 +11,4 @@ func ExamplePrettySprint() {
 	fmt.Println(str)
 	// Output: []string{
 	//}
-}
+}

debugutil/http_dump.go

@@ -0,0 +1,42 @@
+package debugutil
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httputil"
+	"strings"
+)
+
+
+// PrettyPrintResponse is pretty printing a http response
+func PrettySprintResponse(resp *http.Response) (string, error) {
+	dump, err := PrettyDumpResponse(resp, true)
+	if err != nil {
+		return "", err
+	}
+	return string(dump), nil
+}
+
+// PrettyDumpResponse is like DumpResponse but dump is pretty formatted.
+func PrettyDumpResponse(resp *http.Response, body bool) ([]byte, error) {
+
+	b, err := httputil.DumpResponse(resp, body)
+	if err != nil {
+		return nil, err
+	}
+
+	header := resp.Header.Get("Content-type")
+	if body && strings.Contains(header, "application/json") && resp.ContentLength > 0 {
+		buffer := new(bytes.Buffer)
+		jsonRaw := b[int64(len(b))-resp.ContentLength:]
+		b = b[:int64(len(b))-resp.ContentLength]
+		buffer.Write(b)
+		if err := json.Indent(buffer, jsonRaw, "", "\t"); err != nil {
+			return nil, err
+		}
+		return buffer.Bytes(), nil
+	}
+
+	return b, nil
+}

debugutil/http_dump_test.go

@@ -0,0 +1,49 @@
+package debugutil_test
+
+import (
+	"bufio"
+	"bytes"
+	"github.com/donutloop/toolkit/debugutil"
+	"net/http"
+	"testing"
+)
+
+func TestPrettyDumpResponse(t *testing.T) {
+
+	r := []byte(`HTTP/2.0 200 OK
+Content-Length: 1288
+Cache-Control: no-cache, no-store, must-revalidate, max-age=0
+Content-Type: application/json; charset=utf-8
+Date: Wed, 08 May 2019 16:14:10 GMT
+Expires: Wed, 08 May 2019 16:14:10 GMT
+Server: nginx/1.10.3 (Ubuntu)
+Set-Cookie: isLoggedIn=True; Path=/
+Set-Cookie: sessionid_access=701229f3-491c-46c9-bcd8-cbe07cee05da; expires=Thu, 07-May-2020 16:14:10 GMT; httponly; Max-Age=31536000; Path=/
+Vary: Cookie
+X-Content-Type-Options: nosniff
+X-Frame-Options: SAMEORIGIN
+X-Iwoca: 844475
+X-Partner: fincompare
+X-State-Key: 8e4db383-2ead-4a47-87df-220432714c47
+X-Xss-Protection: 1; mode=block
+
+{"data": {"partner": {"verified_data": {"people": [{"identity_document_checks": [{"status": "passed", "file_links": [{"file_type": "photo", "link": "https://static.iwoca.com/assets/iwoca.4c17fef7de62.png"}], "check_id": "REFERENCE_0001", "datetime": "2017-06-12T14:05:51.666Z", "identity_document_type": "passport", "document_issuing_country": "gb", "provider_name": "test"}], "uid": "6cf7319e-f9ec-4038-ba4f-3561a6097484"}]}}, "state_key": "8e4db383-2ead-4a47-87df-220432714c47", "schema_version": "v1", "application": {"company": {"last_12_months_turnover": {"amount": 700000, "datetime": "2016-10-12T14:05:51.666Z"}, "type": "gmbh", "company_number": "01111112", "bank_details": {"iban": "DE89370400440532013000"}}, "requested_products": {"credit_facility": {"approval": {"amount": 15000}}}, "people": [{"residential_addresses": [{"town": "Ely", "uid": "cf9aa203-4e0c-4d7f-b42b-90c7b3d193d3", "house_number": "286", "date_from": "2014-02-03", "street_line_1": "Idverifier St", "postcode": "CB62AG"}], "last_name": "Norton", "uid": "6cf7319e-f9ec-4038-ba4f-3561a6097484", "roles": ["applicant", "shareholder", "guarantor", "director"], "title": "herr", "first_name": "Ervin", "privacy_policy": {"agreed": true, "datetime": "2016-10-12T14:05:51.666Z"}, "date_of_birth": "1980-01-01"}]}}}
+`)
+	reader := bufio.NewReader(bytes.NewReader(r))
+	req, err := http.NewRequest(http.MethodGet, "/api/resource", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resp, err := http.ReadResponse(reader, req)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	s, err := debugutil.PrettySprintResponse(resp)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	t.Log(s)
+}