Improves error log formatting

This commit is contained in:
Manu Mtz-Almeida 2014-07-02 02:31:11 +02:00
parent 4b62957d85
commit f72fcdf5ba
3 changed files with 20 additions and 7 deletions

19
gin.go
View File

@ -1,8 +1,10 @@
package gin package gin
import ( import (
"bytes"
"encoding/json" "encoding/json"
"encoding/xml" "encoding/xml"
"fmt"
"github.com/julienschmidt/httprouter" "github.com/julienschmidt/httprouter"
"html/template" "html/template"
"log" "log"
@ -22,17 +24,19 @@ type (
// Used internally to collect a error ocurred during a http request. // Used internally to collect a error ocurred during a http request.
ErrorMsg struct { ErrorMsg struct {
Message string `json:"msg"` Err string `json:"error"`
Meta interface{} `json:"meta"` Meta interface{} `json:"meta"`
} }
ErrorMsgs []ErrorMsg
// Context is the most important part of gin. It allows us to pass variables between middleware, // Context is the most important part of gin. It allows us to pass variables between middleware,
// manage the flow, validate the JSON of a request and render a JSON response for example. // manage the flow, validate the JSON of a request and render a JSON response for example.
Context struct { Context struct {
Req *http.Request Req *http.Request
Writer http.ResponseWriter Writer http.ResponseWriter
Keys map[string]interface{} Keys map[string]interface{}
Errors []ErrorMsg Errors ErrorMsgs
Params httprouter.Params Params httprouter.Params
handlers []HandlerFunc handlers []HandlerFunc
engine *Engine engine *Engine
@ -57,6 +61,15 @@ type (
} }
) )
func (a ErrorMsgs) String() string {
var buffer bytes.Buffer
for i, msg := range a {
text := fmt.Sprintf("Error #%02d: %s \n Meta: %v\n\n", (i + 1), msg.Err, msg.Meta)
buffer.WriteString(text)
}
return buffer.String()
}
// Returns a new blank Engine instance without any middleware attached. // Returns a new blank Engine instance without any middleware attached.
// The most basic configuration // The most basic configuration
func New() *Engine { func New() *Engine {
@ -240,7 +253,7 @@ func (c *Context) Fail(code int, err error) {
// A middleware can be used to collect all the errors and push them to a database together, print a log, or append it in the HTTP response. // A middleware can be used to collect all the errors and push them to a database together, print a log, or append it in the HTTP response.
func (c *Context) Error(err error, meta interface{}) { func (c *Context) Error(err error, meta interface{}) {
c.Errors = append(c.Errors, ErrorMsg{ c.Errors = append(c.Errors, ErrorMsg{
Message: err.Error(), Err: err.Error(),
Meta: meta, Meta: meta,
}) })
} }

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@ -29,7 +29,7 @@ func Logger() HandlerFunc {
// Calculate resolution time // Calculate resolution time
log.Printf("%s in %v", c.Req.RequestURI, time.Since(t)) log.Printf("%s in %v", c.Req.RequestURI, time.Since(t))
if len(c.Errors) > 0 { if len(c.Errors) > 0 {
fmt.Println(c.Errors) fmt.Println(c.Errors.String())
} }
} }
} }

View File

@ -83,7 +83,7 @@ func Recovery() HandlerFunc {
return func(c *Context) { return func(c *Context) {
defer func() { defer func() {
if len(c.Errors) > 0 { if len(c.Errors) > 0 {
log.Println(c.Errors) log.Println(c.Errors.String())
} }
if err := recover(); err != nil { if err := recover(); err != nil {
stack := stack(3) stack := stack(3)