import "aahframe.work"
Package aah is A secure, flexible, rapid Go web framework.
Visit: https://aahframework.org to know more.
aah.go bind.go commands.go context.go error.go event.go http_engine.go log.go middleware.go reply.go router.go security.go server.go static.go version.go view.go
const (
// EventOnInit is published once the aah.AppConfig() is loaded. At this stage,
// only aah.conf config is initialized. App Variables, Routes, i18n, Security,
// View Engine, Logs and so on will be initialized after this event.
EventOnInit = "OnInit"
// EventOnStart is published just before the start of aah Server.
// The application is completely initialized at this stage. The server
// is yet to be started.
EventOnStart = "OnStart"
// EventOnPreShutdown is published when application receives OS Signals
// `SIGINT` or `SIGTERM` and before the triggering graceful shutdown. After this
// event, aah triggers graceful shutdown with config value of
// `server.timeout.grace_shutdown`.
EventOnPreShutdown = "OnPreShutdown"
// EventOnPostShutdown is published just after the successful grace shutdown
// of aah server and then application does clean exit.
EventOnPostShutdown = "OnPostShutdown"
// EventOnConfigHotReload is published just after aah application internal config
// hot-reload and re-initialize completes without an error otherwise it won't be
// published. It happens when application receives the signal based on
// config `runtime.config_hotreload.signal`.
EventOnConfigHotReload = "OnConfigHotReload"
// EventOnRequest is published on each incoming request to the aah server.
EventOnRequest = "OnRequest"
// EventOnPreReply is published just before writing a reply/response on the wire.
// At this point, the response writer is clean. i.e. Headers, Cookies, Redirects,
// Status Code and Response Body are not written. event is published when
// before server writes the reply on the wire.
//
// Except when
//
// 1) `Reply().Done()`,
//
// 2) `Reply().Redirect(...)` is called.
//
// Refer `aah.Reply().Done()` godoc for more info.
EventOnPreReply = "OnPreReply"
// EventOnHeaderReply is published before writing HTTP header Status.
// At this point, all the headers except the header Status get written on
// the http.ResponseWriter.
//
// Except when
//
// 1) `Reply().Done()`,
//
// 2) `Reply().Redirect(...)` is called.
//
// Refer `aah.Reply().Done()` godoc for more info.
EventOnHeaderReply = "OnHeaderReply"
// EventOnPostReply is published right after the response gets written on the
// wire. We can do nothing about the response, however the context has valuable
// information such as response bytes size, response status code, etc.
//
// Except when
//
// 1) `Reply().Done()`,
//
// 2) `Reply().Redirect(...)` is called.
//
// Refer `aah.Reply().Done()` godoc for more info.
EventOnPostReply = "OnPostReply"
// EventOnPreAuth is published just before the Authentication and Authorization.
EventOnPreAuth = "OnPreAuth"
// EventOnPostAuth is published once the Authentication and Authorization
// info gets populated into Subject.
EventOnPostAuth = "OnPostAuth"
)const (
// KeyViewArgAuthcInfo key name is used to store `AuthenticationInfo` instance into `ViewArgs`.
KeyViewArgAuthcInfo = "_aahAuthcInfo"
// KeyViewArgSubject key name is used to store `Subject` instance into `ViewArgs`.
KeyViewArgSubject = "_aahSubject"
// KeyOAuth2Token key name is used to store OAuth2 Access Token into `aah.Context`.
KeyOAuth2Token = "_aahOAuth2Token"
)const (
// KeyViewArgRequest key name is used to store HTTP Request instance
// into `ViewArgs`.
KeyViewArgRequest = "_aahRequest"
)const Version = "0.13.0-edge"Version no. of aah framework
var (
ErrPanicRecovery = errors.New("aah: panic recovery")
ErrDomainNotFound = errors.New("aah: domain not found")
ErrRouteNotFound = errors.New("aah: route not found")
ErrStaticFileNotFound = errors.New("aah: static file not found")
ErrControllerOrActionNotFound = errors.New("aah: controller or action not found")
ErrInvalidRequestParameter = errors.New("aah: invalid request parameter")
ErrContentTypeNotAccepted = errors.New("aah: content type not accepted")
ErrContentTypeNotOffered = errors.New("aah: content type not offered")
ErrHTTPMethodNotAllowed = errors.New("aah: http method not allowed")
ErrNotAuthenticated = errors.New("aah: not authenticated")
ErrAccessDenied = errors.New("aah: access denied")
ErrAuthenticationFailed = errors.New("aah: authentication failed")
ErrAuthorizationFailed = errors.New("aah: authorization failed")
ErrSessionAuthenticationInfo = errors.New("aah: session authentication info")
ErrUnableToGetPrincipal = errors.New("aah: unable to get principal")
ErrGeneric = errors.New("aah: generic error")
ErrValidation = errors.New("aah: validation error")
ErrRenderResponse = errors.New("aah: render response error")
ErrWriteResponse = errors.New("aah: write response error")
)aah errors
func ActionMiddleware(ctx *Context, m *Middleware)
ActionMiddleware performs
- Executes Interceptors (Before, Before<ActionName>, After, After<ActionName>, Panic, Panic<ActionName>, Finally, Finally<ActionName>) - Invokes Controller Action
func AntiCSRFMiddleware(ctx *Context, m *Middleware)
AntiCSRFMiddleware provides feature to prevent Cross-Site Request Forgery (CSRF) attacks.
func AuthcAuthzMiddleware(ctx *Context, m *Middleware)
AuthcAuthzMiddleware is aah Authentication and Authorization Middleware.
func BindMiddleware(ctx *Context, m *Middleware)
BindMiddleware method parses the incoming HTTP request to collects request parameters (Path, Form, Query, Multipart) stores into context. Request params are made available in View via template functions.
func CORSMiddleware(ctx *Context, m *Middleware)
CORSMiddleware provides Cross-Origin Resource Sharing (CORS) access control feature.
func RouteMiddleware(ctx *Context, m *Middleware)
RouteMiddleware method performs the routing logic.
Application struct represents aah application.
func App() *Application
App method returns the aah application instance.
func (a *Application) AddCommand(cmds ...console.Command) error
AddCommand method adds the aah application CLI commands. Introduced in v0.12.0 release aah application binary fully compliant using module console and POSIX flags.
func (a *Application) AddController(c interface{}, methods []*ainsp.Method)
AddController method adds given controller into controller registory.
AddLoggerHook method adds given logger into aah application default logger.
func (a *Application) AddPasswordAlgorithm(name string, encoder acrypto.PasswordEncoder) error
AddPasswordAlgorithm method adds given password algorithm to encoders list. Implementation have to implement interface `PasswordEncoder`.
Then you can use it in the configuration `security.auth_schemes.*`.
AddSessionStore method allows you to add custom session store which implements `session.Storer` interface. Then configure `name` parameter in the configfuration as `session.store.type = "name"`.
func (a *Application) AddTemplateFunc(funcs template.FuncMap)
AddTemplateFunc method adds template func map into view engine.
AddValueParser method adds given custom value parser for the `reflect.Type`
AddViewEngine method adds the given name and view engine to view store.
func (a *Application) AddWebSocket(w interface{}, methods []*ainsp.Method)
AddWebSocket method adds given WebSocket into WebSocket registry.
func (a *Application) BaseDir() string
BaseDir method returns the application base or binary's base directory
For e.g.: $GOPATH/src/github.com/user/myproject <path/to/the/aah/myproject> <app/binary/path/base/directory>
func (a *Application) BuildInfo() *BuildInfo
BuildInfo method return user application version no.
func (a *Application) CacheManager() *cache.Manager
CacheManager returns aah application cache manager.
func (a *Application) Config() *config.Config
Config method returns aah application configuration instance.
func (a *Application) Copyrights() string
Copyrights method returns application copyrights info from configuration.
Value of `copyrights` from `aah.conf`.
func (a *Application) DefaultI18nLang() string
DefaultI18nLang method returns application i18n default language if configured otherwise framework defaults to "en".
func (a *Application) Desc() string
Desc method returns aah application friendly description from app config otherwise empty string.
Value of `desc` from `aah.conf`.
func (a *Application) EnvProfile() string
EnvProfile returns active environment profile name of aah application. For e.g.: dev, prod, etc. Default is `dev`.
Value of `env.active` from `aah.conf`.
func (a *Application) EnvProfiles() []string
EnvProfiles method returns all available environment profile names from aah application.
func (a *Application) EventStore() *EventStore
EventStore method returns aah application event store.
func (a *Application) HTTPAddress() string
HTTPAddress method returns aah application HTTP address otherwise empty string
Value of `server.address` from `aah.conf`.
func (a *Application) HTTPEngine() *HTTPEngine
HTTPEngine method returns aah HTTP engine.
func (a *Application) HTTPPort() string
HTTPPort method returns aah application HTTP port number based on `server.port` value. Possible outcomes are user-defined port, `80`, `443` and `8080`.
func (a *Application) I18n() i18n.I18ner
I18n method returns aah application I18n store instance.
func (a *Application) ImportPath() string
ImportPath method returns the application Go import path.
func (a *Application) InitForCLI(importPath string) error
InitForCLI method is for purpose aah CLI tool. IT IS NOT FOR AAH USER. Introduced in v0.12.0 release.
func (a *Application) InstanceName() string
InstanceName method returns aah application instane name from app config `instance_name` otherwise empty string.
Value of `instance_name` from `aah.conf`.
func (a *Application) IsEnvProfile(envProfile string) bool
IsEnvProfile method returns true if given environment profile match with active environment in aah application otherwise false.
func (a *Application) IsLetsEncryptEnabled() bool
IsLetsEncryptEnabled method returns true if aah application is enabled with Let's Encrypt certs otherwise false.
func (a *Application) IsPackaged() bool
IsPackaged method returns true when application built for deployment.
func (a *Application) IsSSLEnabled() bool
IsSSLEnabled method returns true if aah application is enabled with SSL otherwise false.
func (a *Application) IsWebSocketEnabled() bool
IsWebSocketEnabled method returns to true if aah application enabled with WebSocket feature.
Value of `server.websocket.enable` from `aah.conf`.
func (a *Application) Log() log.Loggerer
Log method returns app logger instance.
func (a *Application) Name() string
Name method returns aah application name from app config `name` otherwise app name of the base directory.
NewChildLogger method create a child logger from aah application default logger.
func (a *Application) OnConfigHotReload(ecb EventCallbackFunc, priority ...int)
OnConfigHotReload method is to subscribe to aah application `OnConfigHotReload` event. `OnConfigHotReload` is published just after aah application internal config hot-reload and re-initialize completes without an error otherwise it won't be published.
func (a *Application) OnInit(ecb EventCallbackFunc, priority ...int)
OnInit method is to subscribe to aah application `OnInit` event. `OnInit` event published right after the aah application configuration `aah.conf` initialized.
func (a *Application) OnPostShutdown(ecb EventCallbackFunc, priority ...int)
OnPostShutdown method is to subscribe to aah application `OnPostShutdown` event. `OnPostShutdown` event pubished right the successful grace shutdown of aah server.
func (a *Application) OnPreShutdown(ecb EventCallbackFunc, priority ...int)
OnPreShutdown method is to subscribe to aah application `OnPreShutdown` event. `OnPreShutdown` event pubished right before the triggering aah server graceful shutdown.
func (a *Application) OnStart(ecb EventCallbackFunc, priority ...int)
OnStart method is to subscribe to aah application `OnStart` event. `OnStart` event pubished right before the aah server starts listening to the request.
func (a *Application) PublishEvent(eventName string, data interface{})
PublishEvent method publishes events to subscribed callbacks asynchronously. It means each subscribed callback executed via goroutine.
func (a *Application) PublishEventSync(eventName string, data interface{})
PublishEventSync method publishes events to subscribed callbacks synchronously.
func (a *Application) RegisterI18n(ms i18n.I18ner)
RegisterI18n method is used to register the i18n message store into aah appplication the implements interface `i18n.I18ner`.
func (a *Application) Router() *router.Router
Router method returns aah application router instance.
func (a *Application) Run(args []string) error
Run method initializes `aah` application and runs the given command. If anything goes wrong during an initialize process, it would return an error.
func (a *Application) SecurityManager() *security.Manager
SecurityManager method returns the application security instance, which manages the Session, CORS, CSRF, Security Headers, etc.
func (a *Application) ServeHTTP(w http.ResponseWriter, r *http.Request)
ServeHTTP method implementation of http.Handler interface.
func (a *Application) SessionManager() *session.Manager
SessionManager method returns the application session manager. By default session is stateless.
func (a *Application) SetBuildInfo(bi *BuildInfo)
SetBuildInfo method sets the user application build info into aah instance.
func (a *Application) SetErrorHandler(handlerFunc ErrorHandlerFunc)
SetErrorHandler method is used to register custom centralized application error handler. If custom handler is not then default error handler takes place.
func (a *Application) SetMinifier(fn MinifierFunc)
SetMinifier method sets the given minifier func into aah framework. Note: currently minifier is called only for HTML contentType.
func (a *Application) SetPackaged(pack bool)
SetPackaged method sets the info of binary is packaged or not.
It is used by framework during application startup. IT'S NOT FOR AAH USER(S).
func (a *Application) SetTLSConfig(tlsCfg *tls.Config)
SetTLSConfig method is used to set custom TLS config for aah server. Note: if `server.ssl.lets_encrypt.enable=true` then framework sets the `GetCertificate` from autocert manager.
Use `aah.OnInit` or `func init() {...}` to assign your custom TLS Config.
func (a *Application) Shutdown()
Shutdown method allows aah server to shutdown gracefully with given timeout in seconds. It's invoked on OS signal `SIGINT` and `SIGTERM`.
Method performs:
- Graceful server shutdown with timeout by `server.timeout.grace_shutdown` - Publishes `OnPostShutdown` event - Exits program with code 0
func (a *Application) Start()
Start method starts the Go HTTP server based on aah config "server.*".
func (a *Application) SubscribeEvent(eventName string, ec EventCallback)
SubscribeEvent method is to subscribe to new or existing event.
func (a *Application) SubscribeEventFunc(eventName string, ecf EventCallbackFunc)
SubscribeEventFunc method is to subscribe to new or existing event by `EventCallbackFunc`.
func (a *Application) Type() string
Type method returns aah application type info e.g.: web, api, websocket.
Value of `type` from `aah.conf`.
func (a *Application) UnsubscribeEvent(eventName string, ec EventCallback)
UnsubscribeEvent method is to unsubscribe by event name and `EventCallback` from app event store.
func (a *Application) UnsubscribeEventFunc(eventName string, ecf EventCallbackFunc)
UnsubscribeEventFunc method is to unsubscribe by event name and `EventCallbackFunc` from app event store.
func (a *Application) VFS() *vfs.VFS
VFS method returns aah Virtual FileSystem instance.
func (a *Application) Validate(s interface{}) (validator.ValidationErrors, error)
Validate method is to validate struct via underneath validator.
Returns:
- For validation errors: returns `validator.ValidationErrors` and nil - For invalid input: returns nil, error (invalid input such as nil, non-struct, etc.) - For no validation errors: nil, nil
func (a *Application) ValidateValue(v interface{}, rules string) bool
ValidateValue method is to validate individual value on demand.
Returns -
- true: validation passed - false: validation failed
For example:
i := 15
result := valpar.ValidateValue(i, "gt=1,lt=10")
emailAddress := "sample@sample"
result := valpar.ValidateValue(emailAddress, "email")
numbers := []int{23, 67, 87, 23, 90}
result := valpar.ValidateValue(numbers, "unique")
func (a *Application) Validator() *validator.Validate
Validator method return the default validator of aah framework.
Refer to https://godoc.org/gopkg.in/go-playground/validator.v9 for detailed documentation.
func (a *Application) ViewEngine() view.Enginer
ViewEngine method returns aah application view Engine instance.
func (a *Application) VirtualBaseDir() string
VirtualBaseDir method returns "/app". In `v0.11.0` Virtual FileSystem (VFS) introduced in aah to provide single binary build packaging and provides seamless experience of Read-Only access to application directory and its sub-tree across OS platforms via `aah.App().VFS()`.
func (a *Application) WSEngine() *ws.Engine
WSEngine method returns aah WebSocket engine.
Note: It could be nil if WebSocket is not enabled.
type BuildInfo struct {
BinaryName string
Version string
Timestamp string
AahVersion string // introduced in v0.12.0
GoVersion string // introduced in v0.12.0
}BuildInfo holds the aah application build information; such as BinaryName, Version and Date.
type Context struct {
// Req is HTTP request instance
Req *ahttp.Request
// Res is HTTP response writer compliant.
//
// Note 1: It is highly recommended to use `Reply()` builder for
// composing your response.
//
// Note 2: If you're using `cxt.Res` directly, don't forget to call
// `Reply().Done()`; so that aah will not intervene with your
// response.
Res ahttp.ResponseWriter
// contains filtered or unexported fields
}Context type for aah framework, gets embedded in application controller.
Note: this is not standard package `context.Context`.
Abort method sets the abort to true. It means framework will not proceed with next middleware, next interceptor or action based on context it being used. Contexts:
1) If it's called in the middleware, then middleware chain stops; framework starts processing response. 2) If it's called in Before interceptor then Before<Action> interceptor, mapped <Action>, After<Action> interceptor and After interceptor will not execute; framework starts processing response. 3) If it's called in Mapped <Action> then After<Action> interceptor and After interceptor will not execute; framework starts processing response.
AddViewArg method adds given key and value into `viewArgs`. These view args values accessible on templates. Chained call is possible.
Get method returns the value for the given key, otherwise it returns nil.
IsStaticRoute method returns true if it's static route otherwise false.
Log method adds field `Request ID` into current log context and returns the logger.
Msg method returns the i18n value for given key otherwise empty string returned.
Msgl method returns the i18n value for given local and key otherwise empty string returned.
Reply method gives you control and convenient way to write a response effectively.
RouteURL method returns the URL for given route name and args. See `router.Domain.RouteURL` for more information.
RouteURLNamedArgs method returns the URL for given route name and key-value paris. See `router.Domain.RouteURLNamedArgs` for more information.
Session method always returns `session.Session` object. Use `Session.IsNew` to identify whether sesison is newly created or restored from the request which was already created.
Set method is used to set value for the given key in the current request flow.
SetMethod method is to set the request `Method` to change the behaviour of request routing. Ideal for URL rewrting.
Note: This method only takes effect on `OnRequest` HTTP server event.
SetURL method is to set the request URL to change the behaviour of request routing. Ideal for URL rewrting. URL can be relative or absolute URL.
Note: This method only takes effect on `OnRequest` HTTP server event.
Subdomain method returns the subdomain from the incoming request if available as per routes.conf. Otherwise empty string.
Subject method the subject (aka application user) of current request.
ViewArgs method returns aah framework and request related info that can be used in template or view rendering, etc.
Data type used for convenient data type of map[string]interface{}
MarshalXML method is to marshal `aah.Data` into XML.
type Error struct {
Reason error `json:"-" xml:"-"`
Code int `json:"code,omitempty" xml:"code,omitempty"`
Message string `json:"message,omitempty" xml:"message,omitempty"`
Data interface{} `json:"data,omitempty" xml:"data,omitempty"`
}Error structure is used to represent the error information in aah framework.
Error method is to comply error interface.
type ErrorHandler interface {
// HandleError method is to handle controller specific errors
//
// - Returns `true` if one or more errors are handled. aah just writes the reply on the wire.
//
// - Return `false` if one or more errors could not be handled. aah propagates the error(s)
// further onto centralized error handler. If not handled, then finally default
// error handler takes control.
HandleError(err *Error) bool
}ErrorHandler is an interface to implement controller level error handling
ErrorHandlerFunc is a function type. It is used to define a centralized error handler for an application.
- Returns `true` when one or more errors are handled. aah just writes the reply on the wire. - Returns `false' when one or more errors could not be handled. aah propagates the error(s)
to default error handler.
Event type holds the details of single event.
type EventCallback struct {
Callback EventCallbackFunc
CallOnce bool
// contains filtered or unexported fields
}EventCallback type is store particular callback in priority for calling sequance.
EventCallbackFunc is signature of event callback function.
type EventCallbacks []EventCallback
EventCallbacks type is slice of `EventCallback` type.
type EventStore struct {
// contains filtered or unexported fields
}EventStore type holds all the events belongs to aah application.
func (es *EventStore) IsEventExists(eventName string) bool
IsEventExists method returns true if given event is exists in the event store otherwise false.
func (es *EventStore) Publish(e *Event)
Publish method publishes events to subscribed callbacks asynchronously. It means each subscribed callback executed via goroutine.
func (es *EventStore) PublishSync(e *Event)
PublishSync method publishes events to subscribed callbacks synchronously.
func (es *EventStore) Subscribe(event string, ec EventCallback)
Subscribe method is to subscribe any event with event callback info.
func (es *EventStore) SubscriberCount(eventName string) int
SubscriberCount method returns subscriber count for given event name.
func (es *EventStore) Unsubscribe(event string, callback EventCallbackFunc)
Unsubscribe method is to unsubscribe any callback from event store by event.
type HTTPEngine struct {
// contains filtered or unexported fields
}HTTPEngine holds the implementation handling HTTP request, response, middlewares, interceptors, etc.
func (e *HTTPEngine) Handle(w http.ResponseWriter, r *http.Request)
Handle method is HTTP handler for aah application.
func (e *HTTPEngine) Log() log.Loggerer
Log method returns HTTP engine logger.
func (e *HTTPEngine) Middlewares(middlewares ...MiddlewareFunc)
Middlewares method adds given middleware into middleware stack
func (e *HTTPEngine) OnHeaderReply(sef EventCallbackFunc)
OnHeaderReply method is to subscribe to aah HTTP engine `OnHeaderReply` extension point. `OnHeaderReply` called for every reply from aah server.
Except when 1) `Reply().Done()`, 2) `Reply().Redirect(...)` is called.
Refer `aah.Reply().Done()` godoc for more info.
func (e *HTTPEngine) OnPostAuth(sef EventCallbackFunc)
OnPostAuth method is to subscribe to aah application `OnPreAuth` event. `OnPostAuth` event pubished right after the aah server authenticates & authorizes an incoming request.
func (e *HTTPEngine) OnPostReply(sef EventCallbackFunc)
OnPostReply method is to subscribe to aah HTTP engine `OnPostReply` extension point. `OnPostReply` called for every reply from aah server.
Except when 1) `Reply().Done()`, 2) `Reply().Redirect(...)` is called.
Refer `aah.Reply().Done()` godoc for more info.
func (e *HTTPEngine) OnPreAuth(sef EventCallbackFunc)
OnPreAuth method is to subscribe to aah application `OnPreAuth` event. `OnPreAuth` event pubished right before the aah server authenticates & authorizes an incoming request.
func (e *HTTPEngine) OnPreReply(sef EventCallbackFunc)
OnPreReply method is to subscribe to aah HTTP engine `OnPreReply` extension point. `OnPreReply` called for every reply from aah server.
Except when 1) `Reply().Done()`, 2) `Reply().Redirect(...)` is called.
Refer `aah.Reply().Done()` godoc for more info.
func (e *HTTPEngine) OnRequest(sef EventCallbackFunc)
OnRequest method is to subscribe to aah HTTP engine `OnRequest` extension point. `OnRequest` called for every incoming HTTP request.
The `aah.Context` object passed to the extension functions is decorated with the `ctx.SetURL()` and `ctx.SetMethod()` methods. Calls to these methods will impact how the request is routed and can be used for rewrite rules.
Note: Route is not yet populated/evaluated at this point.
type Middleware struct {
// contains filtered or unexported fields
}Middleware struct is to implement aah framework middleware chain.
func (mw *Middleware) Next(ctx *Context)
Next method calls next middleware in the chain if available.
type MiddlewareFunc func(ctx *Context, m *Middleware)
MiddlewareFunc func type is aah framework middleware signature.
func ToMiddleware(handler interface{}) MiddlewareFuncToMiddleware method expands the possibilities. It helps aah users to register the third-party or your own net/http middleware into `aah.MiddlewareFunc`.
It is highly recommended to refactored to `aah.MiddlewareFunc`.
You can register below handler types: 1) aah.ToMiddleware(h http.Handler) 2) aah.ToMiddleware(h http.HandlerFunc) 3) aah.ToMiddleware(func(w http.ResponseWriter, r *http.Request))
MinifierFunc is to minify the HTML buffer and write the response into writer.
Render interface to various rendering classifcation for HTTP responses.
RenderFunc type is an adapter to allow the use of regular function as custom Render.
func (rf RenderFunc) Render(w io.Writer) error
Render method is implementation of Render interface in the adapter type.
type Reply struct {
Rdr Render
Code int
ContType string
// contains filtered or unexported fields
}Reply gives you control and convenient way to write a response effectively.
Accepted method sets the HTTP Code as 202 RFC 7231, 6.3.3.
BadRequest method sets the HTTP Code as 400 RFC 7231, 6.5.1.
Binary method writes given bytes into response. It auto-detects the content type of the given bytes if header `Content-Type` is not set.
Body method returns the response body buffer.
It might be nil if the - 1) Response was written successfully on the wire 2) Response is not yet rendered 3) Static files, since response is written via `http.ServeContent`
Conflict method sets the HTTP Code as 409 RFC 7231, 6.5.8.
ContentType method sets given Content-Type string for the response. Also Reply instance provides easy to use method for very frequently used Content-Type(s).
By default aah framework try to determine response 'Content-Type' from 'ahttp.Request.AcceptContentType()'.
Cookie method adds the give HTTP cookie into response.
Created method sets the HTTP Code as 201 RFC 7231, 6.3.2.
DisableGzip method allows you disable Gzip for the reply. By default every response is gzip compressed if the client supports it and gzip enabled in app config.
Done method is used to indicate response has already been written using `aah.Context.Res` so no further action is needed from framework.
Note: Framework doesn't intervene with response if this method called by aah user.
Error method is used send an error reply, which is handled by aah error handling mechanism.
More Info: https://docs.aahframework.org/error-handling.html
File method send the given as file to client. It auto-detects the content type of the file if `Content-Type` is not set.
Note: If give filepath is relative path then application base directory is used as prefix.
FileDownload method send the given as file to client as a download. It sets the `Content-Disposition` as `attachment` with given target name and auto-detects the content type of the file if `Content-Type` is not set.
FileInline method send the given as file to client to display. For e.g.: display within the browser. It sets the `Content-Disposition` as `inline` with given target name and auto-detects the content type of the file if `Content-Type` is not set.
Forbidden method sets the HTTP Code as 403 RFC 7231, 6.5.3.
Found method sets the HTTP Code as 302 RFC 7231, 6.4.3.
FromReader method reads the data from given reader and writes into response. It auto-detects the content type of the file if `Content-Type` is not set.
Note: Method will close the reader after serving if it's satisfies the `io.Closer`.
HTML method renders given data with auto mapped template name and layout by framework. Also it sets HTTP 'Content-Type' as 'text/html; charset=utf-8'.
aah renders the view template based on -
1) path 'Namespace/Sub-package' of Controller,
2) path 'Controller.Action',
3) view extension 'view.ext' and
4) case sensitive 'view.case_sensitive' from aah.conf
5) default layout is 'master.html'
For e.g.: Namespace/Sub-package: frontend Controller: App Action: Login view.ext: html Outcome view template path => /views/pages/frontend/app/login.html
HTMLf method renders based on given filename and data. Refer `Reply.HTML(...)` method.
HTMLl method renders based on given layout and data. Refer `Reply.HTML(...)` method.
HTMLlf method renders based on given layout, filename and data. Refer `Reply.HTML(...)` method.
Header method sets the given header and value for the response. If value == "", then this method deletes the header.
Note: It overwrites existing header value if it's present.
HeaderAppend method appends the given header and value for the response.
Note: It just appends to it. It does not overwrite existing header.
InternalServerError method sets the HTTP Code as 500 RFC 7231, 6.6.1.
IsContentTypeSet method returns true if Content-Type is set otherwise false.
JSON method renders given data as JSON response and it sets HTTP 'Content-Type' as 'application/json; charset=utf-8'.
JSONP method renders given data as JSONP response with callback and it sets HTTP 'Content-Type' as 'application/javascript; charset=utf-8'.
JSONSecure method renders given data as Secure JSON into response. and it sets HTTP 'Content-Type' as 'application/json; charset=utf-8'.
See config `render.secure_json.prefix`.
MethodNotAllowed method sets the HTTP Code as 405 RFC 7231, 6.5.5.
MovedPermanently method sets the HTTP Code as 301 RFC 7231, 6.4.2.
NoContent method sets the HTTP Code as 204 RFC 7231, 6.3.5.
NotAcceptable method sets the HTTP Code as 406 RFC 7231, 6.5.6
NotFound method sets the HTTP Code as 404 RFC 7231, 6.5.4.
Ok method sets the HTTP Code as 200 RFC 7231, 6.3.1.
Redirect method redirects to given redirect URL with status 302.
RedirectWithStatus method redirects to given redirect URL and status code.
Render method is used render custom implementation using interface `aah.Render`.
ServiceUnavailable method sets the HTTP Code as 503 RFC 7231, 6.6.4.
Status method sets the HTTP Code code for the response. Also Reply instance provides easy to use method for very frequently used HTTP Status Codes reference: http://www.restapitutorial.com/httpCodecodes.html
TemporaryRedirect method sets the HTTP Code as 307 RFC 7231, 6.4.7.
Text method renders given data as Plain Text response with given values and it sets HTTP Content-Type as 'text/plain; charset=utf-8'.
Unauthorized method sets the HTTP Code as 401 RFC 7235, 3.1.
UnsupportedMediaType method sets the HTTP Code as 415 RFC 7231, 6.5.13
XML method renders given data as XML response and it sets HTTP Content-Type as 'application/xml; charset=utf-8'.
| Path | Synopsis |
|---|---|
| ahttp | Package ahttp is to cater HTTP helper methods for aah framework. |
| ainsp | Package ainsp is a Go ast library for aah framework, it does inspect and discovers the Go `struct` which embeds particular type `struct`. |
| aruntime | Package aruntime provides aah runtime capabilities to collect debug stacktrace, goroutines diagnosis profiling. |
| aruntime/diagnosis | Package diagnosis brings feature of aah application profiling to do various diagnosis. |
| cache | Package cache provides simple and extensible cache feature for aah application. |
| config | Package config is nice and handy layer built around `forge` config syntax; which is similar to HOCON syntax. |
| console | Package console provides a feature to implement CLI commands into your aah application easily and extensible. |
| essentials | Package ess provides a essentials and helper for the application development and usage. |
| i18n | Package i18n is internationalization and localization support for aah framework. |
| internal/settings | |
| internal/util | |
| log | Package log simple logger and provides capabilities to fulfill application use cases. |
| router | Package router provides routing implementation for aah framework. |
| security | Package security houses all the application security implementation Authentication, Authorization, Session Management, CSRF, Security Headers, etc.) by aah framework. |
| security/acrypto | |
| security/anticsrf | |
| security/authc | |
| security/authz | |
| security/cookie | |
| security/scheme | |
| security/session | Package session provides HTTP state management library for aah framework. |
| valpar | Package valpar provides feature of request value parsing, handling, binding and validating. |
| vfs | Package vfs provides Virtual FileSystem (VFS) capability. |
| view | Package view is implementation of aah framework view engine using Go Template engine. |
| ws | Package ws is a WebSocket library for aah framework (RFC 6455 compliant). |
Package aah imports 52 packages (graph) and is imported by 2 packages. Updated 2019-10-12. Refresh now. Tools for package owners.