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noamt and vishr Fix for #1334 (#1335)
* echo.context.cjson should encode the JSON before writing the status code #1334 :

`response.Write` automatically sets status to `200` if a response code wasn't committed yet. This is convenient, but it ignores the fact that `response.Status` is a public field that may be set separately/before `response.Write` has been called
A `response.Status` is by default `0`, or `200` if the response was reset, so `response.Write` should fallback to `200` only if a code wasn't set yet.

* echo.context.cjson should encode the JSON before writing the status code #1334 :

Writing the response code before encoding the payload is prone to error.
If JSON encoding fails, the response code is already committed, the server is able to only modify the response body to reflect the error and the user receives an awkward response where the status is successful but the body reports an error.
Instead - set the desired code on `c.response.Status`. If writing eventually takes place, the desired code is committed. If an error occurs, the server can still change the response.
Latest commit fbb7286 May 24, 2019
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.github Added probot-stale Nov 30, 2018
_fixture Test cased for Echo#Start/Shutdown Sep 25, 2016
middleware Provide possibility to use key ids (#1289) May 17, 2019
.editorconfig updated docs Nov 17, 2016
.gitattributes Updated website and examples Jan 17, 2017
.gitignore Fixed build Jun 29, 2017
.travis.yml Add go 1.12 to TravisCI (#1294) Feb 26, 2019
LICENSE Update website Jan 10, 2017
Makefile Updated ci Nov 10, 2018
README.md Fixed indentation in code example. (#1338) May 14, 2019
bind.go Remove unreachable code (#1254) Jan 28, 2019
bind_test.go Replace http constants with stdlib ones, i.e.: http.MethodGet instead… Oct 14, 2018
context.go Fix for #1334 (#1335) May 24, 2019
context_test.go Fix for #1334 (#1335) May 24, 2019
echo.go Bumped v4.1.5 Apr 30, 2019
echo_test.go `Echo.StartTLS`: accept `string` or `[]byte` as parameters. (#1277) Feb 15, 2019
go.mod Updated deps and fixed a typo Apr 28, 2019
go.sum Updated deps and fixed a typo Apr 28, 2019
group.go Bumped v4.1.5 Apr 30, 2019
group_test.go Replace http constants with stdlib ones, i.e.: http.MethodGet instead… Oct 14, 2018
log.go the logging interface add SetHeader method (#1092) Sep 28, 2018
response.go Fix for #1334 (#1335) May 24, 2019
response_test.go Fix for #1334 (#1335) May 24, 2019
router.go Bumped v4.1.5 Apr 30, 2019
router_test.go Replace http constants with stdlib ones, i.e.: http.MethodGet instead… Oct 14, 2018

README.md

Sourcegraph GoDoc Go Report Card Build Status Codecov Join the chat at https://gitter.im/labstack/echo Forum Twitter License

Supported Go versions

As of version 4.0.0, Echo is available as a Go module. Therefore a Go version capable of understanding /vN suffixed imports is required:

  • 1.9.7+
  • 1.10.3+
  • 1.11+

Any of these versions will allow you to import Echo as github.com/labstack/echo/v4 which is the recommended way of using Echo going forward.

For older versions, please use the latest v3 tag.

Feature Overview

  • Optimized HTTP router which smartly prioritize routes
  • Build robust and scalable RESTful APIs
  • Group APIs
  • Extensible middleware framework
  • Define middleware at root, group or route level
  • Data binding for JSON, XML and form payload
  • Handy functions to send variety of HTTP responses
  • Centralized HTTP error handling
  • Template rendering with any template engine
  • Define your format for the logger
  • Highly customizable
  • Automatic TLS via Let’s Encrypt
  • HTTP/2 support

Benchmarks

Date: 2018/03/15
Source: https://github.com/vishr/web-framework-benchmark
Lower is better!

Guide

Example

package main

import (
  "net/http"
  "github.com/labstack/echo/v4"
  "github.com/labstack/echo/v4/middleware"
)

func main() {
  // Echo instance
  e := echo.New()

  // Middleware
  e.Use(middleware.Logger())
  e.Use(middleware.Recover())

  // Routes
  e.GET("/", hello)

  // Start server
  e.Logger.Fatal(e.Start(":1323"))
}

// Handler
func hello(c echo.Context) error {
  return c.String(http.StatusOK, "Hello, World!")
}

Help

Contribute

Use issues for everything

  • For a small change, just send a PR.
  • For bigger changes open an issue for discussion before sending a PR.
  • PR should have:
    • Test case
    • Documentation
    • Example (If it makes sense)
  • You can also contribute by:
    • Reporting issues
    • Suggesting new features or enhancements
    • Improve/fix documentation

Credits

License

MIT

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