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https://github.com/andeya/faygo

Faygo is a fast and concise Go Web framework that can be used to develop high-performance web app(especially API) with fewer codes. Just define a struct handler, faygo will automatically bind/verify the request parameters and generate the online API doc.
https://github.com/andeya/faygo

auto-api-doc golang hot-update http2 http2-push httprouter middleware parameter-binding server server-push shutdown-reboot-gracefully swagger web-framework

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Faygo is a fast and concise Go Web framework that can be used to develop high-performance web app(especially API) with fewer codes. Just define a struct handler, faygo will automatically bind/verify the request parameters and generate the online API doc.

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README

        

# Faygo [![report card](https://goreportcard.com/badge/github.com/andeya/faygo?style=flat-square)](http://goreportcard.com/report/andeya/faygo) [![github issues](https://img.shields.io/github/issues/andeya/faygo.svg?style=flat-square)](https://github.com/andeya/faygo/issues?q=is%3Aopen+is%3Aissue) [![github closed issues](https://img.shields.io/github/issues-closed-raw/andeya/faygo.svg?style=flat-square)](https://github.com/andeya/faygo/issues?q=is%3Aissue+is%3Aclosed) [![GitHub release](https://img.shields.io/github/release/andeya/faygo.svg?style=flat-square)](https://github.com/andeya/faygo/releases) [![GoDoc](https://img.shields.io/badge/godoc-reference-blue.svg?style=flat-square)](http://godoc.org/github.com/andeya/faygo) [![view Go网络编程群](https://img.shields.io/badge/官方QQ群-Go网络编程(42730308)-27a5ea.svg?style=flat-square)](http://jq.qq.com/?_wv=1027&k=fzi4p1)

![Faygo Favicon](https://github.com/andeya/faygo/raw/master/doc/faygo_96x96.png)

Faygo is a fast and concise Go Web framework that can be used to develop high-performance web app(especially API) with fewer codes. Just define a struct Handler, Faygo will automatically bind/verify the request parameters and generate the online API doc. [Go to \](https://github.com/andeya/faydoc)

[简体中文](https://github.com/andeya/faygo/blob/master/README_ZH.md)

![faygo index](https://github.com/andeya/faygo/raw/master/doc/index.png)

![faygo apidoc](https://github.com/andeya/faygo/raw/master/doc/apidoc.png)

![faygo server](https://github.com/andeya/faygo/raw/master/doc/server.png)

## Latest version

### Version

v1.2.0

### Requirements

Go Version ≥ 1.8

## Quick Start

- Way 1: download source

```sh
go get -u -v github.com/andeya/faygo
```

- Way 2: deployment tools ([Go to fay](https://github.com/andeya/fay))

```sh
go get -u -v github.com/andeya/fay
```

```
fay command [arguments]

The commands are:
new create, compile and run (monitor changes) a new faygo project
run compile and run (monitor changes) an any existing go project

fay new appname [apptpl]
appname specifies the path of the new faygo project
apptpl optionally, specifies the faygo project template type

fay run [appname]
appname optionally, specifies the path of the new project
```

## Features

- One `struct Handler` can get more things:
* Define Handler/Middleware
* Bind and verify request parameters
* Generate an online document for the Swagger 2.0 API
* Database ORM mapping

- Handler and Middleware are exactly the same, both implement the Handler interface (`func` or` struct`), which together constitute the handler chain of the router.
- Supports multiple network types:

Network types | Configuration `net_types`
----------------------------------------------|----------------
HTTP | `http`
HTTPS/HTTP2(TLS) | `https`
HTTPS/HTTP2(Let's Encrypt TLS) | `letsencrypt`
HTTPS/HTTP2(Let's Encrypt TLS on UNIX socket) | `unix_letsencrypt`
HTTP(UNIX socket) | `unix_http`
HTTPS/HTTP2(TLS on UNIX socket) | `unix_https`

- Support single-service & single-listener, single-service & multi-listener, multi-service & multi-listener and so on. The config of multiple services is independent of each other
- The high-performance router based on `httprouter` supports both chain and tree registration styles; supports flexible static file router (such as DirFS, RenderFS, MarkdownFS, etc.)
- Support graceful shutdown and rebooting, provide fay tools which has new projects, hot compilation , meta programming function
- Use the most powerful `pongo2` as the HTML rendering engine
- Support near-LRU memory caching (mainly used for static file cache)
- Support cross-platform color log system, and has two output interface(console and file)
- Support session management (If you use a persistent storage engine, you must use gob.Register() to register the relevant custom type before starting the service)
- Support global gzip compression config
- Support XSRF security filtering
- Most features try to use simple ini configs to avoid unnecessary recompilation, and these profiles can be automatically assigned default values
- Provide `gorm`, ` xorm`, `sqlx`, ` directSQL`, `Websocket`, ` ini`, `http client` and many other commonly used expansion packages

![faygo handler multi-usage](https://github.com/andeya/faygo/raw/master/doc/MultiUsage.png)

## Simple example

```go
package main

import (
// "mime/multipart"
"time"
"github.com/andeya/faygo"
)

type Index struct {
Id int `param:" "`
Title string `param:" "`
Paragraph []string `param:" "`
Cookie string `param:" "`
// Picture *multipart.FileHeader `param:" "`
}

func (i *Index) Serve(ctx *faygo.Context) error {
if ctx.CookieParam("faygoID") == "" {
ctx.SetCookie("faygoID", time.Now().String())
}
return ctx.JSON(200, i)
}

func main() {
app := faygo.New("myapp", "0.1")

// Register the route in a chain style
app.GET("/index/:id", new(Index))

// Register the route in a tree style
// app.Route(
// app.NewGET("/index/:id", new(Index)),
// )

// Start the service
faygo.Run()
}

/*
http GET:
http://localhost:8080/index/1?title=test&p=abc&p=xyz
response:
{
"Id": 1,
"Title": "test",
"Paragraph": [
"abc",
"xyz"
],
"Cookie": "2016-11-13 01:14:40.9038005 +0800 CST"
}
*/
```

[All samples](https://github.com/andeya/faygo/raw/master/samples)

## Handler and middleware

Handler and middleware are the same, both implemente Handler interface!

- function type

```go
// Page handler doesn't contains API doc description
func Page() faygo.HandlerFunc {
return func(ctx *faygo.Context) error {
return ctx.String(200, "faygo")
}
}

// Page2 handler contains API doc description
var Page2 = faygo.WrapDoc(Page(), "test page2 notes", "test")
```

- struct type

```go
// Param binds and validates the request parameters by Tags
type Param struct {
Id int `param:" "`
Title string `param:""`
}

// Serve implemente Handler interface
func (p *Param) Serve(ctx *faygo.Context) error {
return ctx.JSON(200,
faygo.Map{
"Struct Params": p,
"Additional Param": ctx.PathParam("additional"),
}, true)
}

// Doc implemente API Doc interface (optional)
func (p *Param) Doc() faygo.Doc {
return faygo.Doc{
// Add the API notes to the API doc
Note: "param desc",
// declare the response content format to the API doc
Return: faygo.JSONMsg{
Code: 1,
Info: "success",
},
// additional request parameter declarations to the API doc (optional)
Params: []faygo.ParamInfo{
{
Name: "additional",
In: "path",
Model: "a",
Desc: "defined by the `Doc()` method",
},
},
}
}
```

## Filter function

The filter function must be HandleFunc type!

```go
func Root2Index(ctx *faygo.Context) error {
// Direct access to `/index` is not allowed
if ctx.Path() == "/index" {
ctx.Stop()
return nil
}
if ctx.Path() == "/" {
ctx.ModifyPath("/index")
}
return nil
}
```

## Route registration

- tree style

```go
// New application object, params: name, version
var app1 = faygo.New("myapp1", "1.0")

// router
app1.Filter(Root2Index).
Route(
app1.NewNamedGET("test page", "/page", Page()),
app1.NewNamedGET("test page2", "/page2", Page2),
app1.NewGroup("home",
app1.NewNamedGET("test param", "/param", &Param{
// sets the default value in the API documentation for the request parameters (optional)
Id: 1,
Title: "test param",
}),
),
)
```

- chain style

```go
// New application object, params: name, version
var app2 = faygo.New("myapp2", "1.0")

// router
app2.Filter(Root2Index)
app2.NamedGET("test page", "/page", Page())
app2.NamedGET("test page2", "/page2", Page2)
app2.Group("home")
{
app2.NamedGET("test param", "/param", &Param{
// sets the default value in the API documentation for the request parameters(optional)
Id: 1,
Title: "test param",
})
}
```

## Shutdown and reboot

- shutdown gracefully

```sh
kill [pid]
```

- reboot gracefully

```sh
kill -USR2 [pid]
```

## Configuration

- Each instance of the application has a single config (file name format `config/{appname}[_{version}].ini`). Refer to the following:

```
net_types = http|https # List of network type: http | https | unix_http | unix_https | letsencrypt | unix_letsencrypt
addrs = 0.0.0.0:80|0.0.0.0:443 # List of multiple listening addresses
tls_certfile = # TLS certificate file path
tls_keyfile = # TLS key file path
letsencrypt_dir = # Let's Encrypt TLS certificate cache directory
unix_filemode = 0666 # File permissions for UNIX listener, requires octal number
http_redirect_https = false # Redirect from 'http://hostname:port1' to 'https://hostname:port2'
read_timeout = 0s # Maximum duration for reading the full; ns|µs|ms|s|m|h request (including body)
write_timeout = 0s # Maximum duration for writing the full; ns|µs|ms|s|m|h response (including body)
multipart_maxmemory_mb = 32 # Maximum size of memory that can be used when receiving uploaded files
slow_response_threshold= 0s # When response time > slow_response_threshold, log level = 'WARNING'; 0 means not limited; ns|µs|ms|s|m|h
print_body = false # Form requests are printed in JSON format, but other types are printed as-is

[router] # Routing config section
redirect_trailing_slash = true # Automatic redirection (for example, `/foo/` -> `/foo`)
redirect_fixed_path = true # Tries to fix the current request path, if no handle is registered for it
handle_method_not_allowed = true # Returns 405 if the requested method does not exist, otherwise returns 404
handle_options = true # Automatic response OPTIONS request, you can set the default Handler in Faygo
no_default_params = false # If true, don't assign default request parameter values based on initial parameter values of the routing handler
default_upload = true # Automatically register the default router: /upload/*filepath
default_static = true # Automatically register the default router: /static/*filepath

[xsrf] # XSRF security section
enable = false # Whether enabled or not
key = faygoxsrf # Encryption key
expire_second = 3600 # Expire of XSRF token

[session] # Session section
enable = false # Whether enabled or not
provider = memory # Data storage
name = faygosessionID # The client stores the name of the cookie
provider_config = # According to the different engine settings different config information
cookie_life_second = 0 # The default value is 0, which is the lifetime of the browser
gc_life_second = 300 # The interval between triggering the GC
max_life_second = 3600 # The session max lefetime
auto_setcookie = true # Automatically set on the session cookie value, the general default true
domain = # The domain name that is allowed to access this cookie
enable_sid_in_header = false # Whether to write a session ID to the header
name_in_header = Faygosessionid # The name of the header when the session ID is written to the header
enable_sid_in_urlquery = false # Whether to write the session ID to the URL Query params

[apidoc] # API documentation section
enable = true # Whether enabled or not
path = /apidoc # The URL path
nolimit = false # If true, access is not restricted
real_ip = false # If true, means verifying the real IP of the visitor
whitelist = 192.*|202.122.246.170 # `whitelist=192.*|202.122.246.170` means: only IP addresses that are prefixed with `192.` or equal to `202.122.246.170` are allowed
desc = # Description of the application
email = # Technician's Email
terms_url = # Terms of service
license = # The license used by the API
license_url = # The URL of the protocol content page
```

- Only one global config is applied (`config/__global__.ini`). Refer to the following:

```
[cache] # Cache section
enable = false # Whether enabled or not
size_mb = 32 # Max size by MB for file cache, the cache size will be set to 512KB at minimum.
expire_second = 60 # Maximum duration for caching

[gzip] # compression section
enable = false # Whether enabled or not
min_length = 20 # The minimum length of content to be compressed
compress_level = 1 # Non-file response Body's compression level is 0-9, but the files' always 9
methods = GET # List of HTTP methods to compress. If not set, only GET requests are compressed.

[log] # Log section
console_enable = true # Whether enabled or not console logger
console_level = debug # Console logger level: critical | error | warning | notice | info | debug
file_enable = true # Whether enabled or not file logger
file_level = debug # File logger level: critical | error | warning | notice | info | debug
async_len = 0 # The length of asynchronous buffer, 0 means synchronization
```

## Handler struct tags

tag | key | required | value | desc
------|----------|----------|---------------|----------------------------------
param | in | only one | path | (position of param) if `required` is unsetted, auto set it. e.g. url: "http://www.abc.com/a/{path}"
param | in | only one | query | (position of param) e.g. url: "http://www.abc.com/a?b={query}"
param | in | only one | formData | (position of param) e.g. "request body: a=123&b={formData}"
param | in | only one | body | (position of param) request body can be any content
param | in | only one | header | (position of param) request header info
param | in | only one | cookie | (position of param) request cookie info, support: `*http.Cookie`,`http.Cookie`,`string`,`[]byte`
param | name | no | (e.g.`id`) | specify request param`s name
param | required | no | | request param is required
param | desc | no | (e.g.`id`) | request param description
param | len | no | (e.g.`3:6`) | length range [a,b] of param's value
param | range | no | (e.g.`0:10`) | numerical range [a,b] of param's value
param | nonzero | no | | param`s value can not be zero
param | maxmb | no | (e.g.`32`) | when request Content-Type is multipart/form-data, the max memory for body.(multi-param, whichever is greater)
param | regexp | no | (e.g.`^\\w+$`) | verify the value of the param with a regular expression(param value can not be null)
param | err | no |(e.g.`incorrect password format`)| the custom error for binding or validating

**NOTES**:
* the binding object must be a struct pointer
* in addition to `*multipart.FileHeader`, the binding struct's field can not be a pointer
* if the `param` tag is not exist, anonymous field will be parsed
* when the param's position(`in`) is `formData` and the field's type is `*multipart.FileHeader`, `multipart.FileHeader`, `[]*multipart.FileHeader` or `[]multipart.FileHeader`, the param receives file uploaded
* if param's position(`in`) is `cookie`, field's type must be `*http.Cookie` or `http.Cookie`
* param tags `in(formData)` and `in(body)` can not exist at the same time
* there should not be more than one `in(body)` param tag

## Handler struct fields type

base | slice | special
--------|------------|-------------------------------------------------------
string | []string | [][]byte
byte | []byte | [][]uint8
uint8 | []uint8 | *multipart.FileHeader (only for `formData` param)
bool | []bool | []*multipart.FileHeader (only for `formData` param)
int | []int | *http.Cookie (only for `net/http`'s `cookie` param)
int8 | []int8 | http.Cookie (only for `net/http`'s `cookie` param)
int16 | []int16 | struct (struct type only for `body` param or as an anonymous field to extend params)
int32 | []int32 |
int64 | []int64 |
uint8 | []uint8 |
uint16 | []uint16 |
uint32 | []uint32 |
uint64 | []uint64 |
float32 | []float32 |
float64 | []float64 |

## Expansion package

package summary | import path
-----------------|-----------------------------------------------------------------------------------------------------------------
[barcode](https://github.com/andeya/faygo/raw/master/ext/barcode) | `github.com/andeya/faygo/ext/barcode`
[Bit unit conversion](https://github.com/andeya/faygo/raw/master/ext/bitconv) | `github.com/andeya/faygo/ext/bitconv`
[gorm(DB ORM)](https://github.com/andeya/faygo/raw/master/ext/db/gorm) | `github.com/andeya/faygo/ext/db/gorm`
[sqlx(DB ext)](https://github.com/andeya/faygo/raw/master/ext/db/sqlx) | `github.com/andeya/faygo/ext/db/sqlx`
[xorm(DB ORM)](https://github.com/andeya/faygo/raw/master/ext/db/xorm) | `github.com/andeya/faygo/ext/db/xorm`
[directSQL(Configured SQL engine)](https://github.com/andeya/faygo/raw/master/ext/db/directsql) | `github.com/andeya/faygo/ext/db/directsql`
[One-time Password](https://github.com/andeya/faygo/raw/master/ext/otp) | `github.com/andeya/faygo/ext/otp`
[UUID](https://github.com/andeya/faygo/raw/master/ext/uuid) | `github.com/andeya/faygo/ext/uuid`
[Websocket](https://github.com/andeya/faygo/raw/master/ext/websocket) | `github.com/andeya/faygo/ext/websocket`
[ini](https://github.com/andeya/faygo/raw/master/ini) | `github.com/andeya/faygo/ini`
[cron](https://github.com/andeya/faygo/raw/master/ext/cron) | `github.com/andeya/faygo/ext/cron`
[task](https://github.com/andeya/faygo/raw/master/ext/task) | `github.com/andeya/faygo/ext/task`
[http client](https://github.com/andeya/faygo/raw/master/ext/surfer) | `github.com/andeya/faygo/ext/surfer`

## Know Cases

Product Name | Web/App Server | Home Page
-----------------|----------------|-----------------
盯房 | App | https://www.df-house.com
eTrade | App | https://fir.im/ejy
OneFor | App | https://fir.im/eqb
杰运好车 | App | https://itunes.apple.com/cn/app/%E6%9D%B0%E8%BF%90%E5%A5%BD%E8%BD%A6/id1301132479?mt=8

*Note: Sorted in alphabetical order*

## Business Users

平安科技
  
Followme


杭州盯房科技有限公司
  
众联网游
  
丰利金服

## License

Faygo is under Apache v2 License. See the [LICENSE](https://github.com/andeya/faygo/raw/master/LICENSE) file for the full license text