/
register.go
275 lines (234 loc) · 6.92 KB
/
register.go
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package fxhttpserver
import (
"go.uber.org/fx"
)
type MiddlewareRegistration struct {
middleware any
kind MiddlewareKind
}
func (m *MiddlewareRegistration) Middleware() any {
return m.middleware
}
func (m *MiddlewareRegistration) Kind() MiddlewareKind {
return m.kind
}
func NewMiddlewareRegistration(middleware any, kind MiddlewareKind) *MiddlewareRegistration {
return &MiddlewareRegistration{
middleware: middleware,
kind: kind,
}
}
func AsMiddleware(middleware any, kind MiddlewareKind) fx.Option {
return RegisterMiddleware(NewMiddlewareRegistration(middleware, kind))
}
func RegisterMiddleware(middlewareRegistration *MiddlewareRegistration) fx.Option {
var providers []any
var middlewareDef MiddlewareDefinition
if !isConcreteMiddleware(middlewareRegistration.Middleware()) {
providers = append(
providers,
fx.Annotate(
middlewareRegistration.Middleware(),
fx.As(new(Middleware)),
fx.ResultTags(`group:"http-server-middlewares"`),
),
)
middlewareDef = newMiddlewareDefinition(getReturnType(middlewareRegistration.Middleware()), middlewareRegistration.kind)
} else {
middlewareDef = newMiddlewareDefinition(middlewareRegistration.Middleware(), middlewareRegistration.kind)
}
return fx.Options(
fx.Provide(providers...),
fx.Supply(
fx.Annotate(
middlewareDef,
fx.As(new(MiddlewareDefinition)),
fx.ResultTags(`group:"http-server-middleware-definitions"`),
),
),
)
}
type HandlerRegistration struct {
method string
path string
handler any
middlewares []any
}
func NewHandlerRegistration(method string, path string, handler any, middlewares ...any) *HandlerRegistration {
return &HandlerRegistration{
method: method,
path: path,
handler: handler,
middlewares: middlewares,
}
}
func (h *HandlerRegistration) Method() string {
return h.method
}
func (h *HandlerRegistration) Path() string {
return h.path
}
func (h *HandlerRegistration) Handler() any {
return h.handler
}
func (h *HandlerRegistration) Middlewares() []any {
return h.middlewares
}
func AsHandler(method string, path string, handler any, middlewares ...any) fx.Option {
return RegisterHandler(NewHandlerRegistration(method, path, handler, middlewares...))
}
func RegisterHandler(handlerRegistration *HandlerRegistration) fx.Option {
var providers []any
var middlewareDefs []MiddlewareDefinition
for _, middleware := range handlerRegistration.Middlewares() {
if !isConcreteMiddleware(middleware) {
providers = append(
providers,
fx.Annotate(
middleware,
fx.As(new(Middleware)),
fx.ResultTags(`group:"http-server-middlewares"`),
),
)
middlewareDefs = append(middlewareDefs, newMiddlewareDefinition(getReturnType(middleware), Attached))
} else {
middlewareDefs = append(middlewareDefs, newMiddlewareDefinition(middleware, Attached))
}
}
var handlerDef HandlerDefinition
if !isConcreteHandler(handlerRegistration.Handler()) {
providers = append(
providers,
fx.Annotate(
handlerRegistration.Handler(),
fx.As(new(Handler)),
fx.ResultTags(`group:"http-server-handlers"`),
),
)
handlerDef = newHandlerDefinition(
handlerRegistration.Method(),
handlerRegistration.Path(),
getReturnType(handlerRegistration.Handler()),
middlewareDefs,
)
} else {
handlerDef = newHandlerDefinition(
handlerRegistration.Method(),
handlerRegistration.Path(),
handlerRegistration.Handler(),
middlewareDefs,
)
}
return fx.Options(
fx.Provide(providers...),
fx.Supply(
fx.Annotate(
handlerDef,
fx.As(new(HandlerDefinition)),
fx.ResultTags(`group:"http-server-handler-definitions"`),
),
),
)
}
type HandlersGroupRegistration struct {
prefix string
handlersRegistrations []*HandlerRegistration
middlewares []any
}
func NewHandlersGroupRegistration(prefix string, handlersRegistrations []*HandlerRegistration, middlewares ...any) *HandlersGroupRegistration {
return &HandlersGroupRegistration{
prefix: prefix,
handlersRegistrations: handlersRegistrations,
middlewares: middlewares,
}
}
func (h *HandlersGroupRegistration) Prefix() string {
return h.prefix
}
func (h *HandlersGroupRegistration) HandlersRegistrations() []*HandlerRegistration {
return h.handlersRegistrations
}
func (h *HandlersGroupRegistration) Middlewares() []any {
return h.middlewares
}
func AsHandlersGroup(prefix string, handlersRegistrations []*HandlerRegistration, middlewares ...any) fx.Option {
return RegisterHandlersGroup(NewHandlersGroupRegistration(prefix, handlersRegistrations, middlewares...))
}
func RegisterHandlersGroup(handlersGroupRegistration *HandlersGroupRegistration) fx.Option {
var providers []any
var groupMiddlewareDefs []MiddlewareDefinition
for _, middleware := range handlersGroupRegistration.Middlewares() {
if !isConcreteMiddleware(middleware) {
providers = append(
providers,
fx.Annotate(
middleware,
fx.As(new(Middleware)),
fx.ResultTags(`group:"http-server-middlewares"`),
),
)
groupMiddlewareDefs = append(groupMiddlewareDefs, newMiddlewareDefinition(getReturnType(middleware), Attached))
} else {
groupMiddlewareDefs = append(groupMiddlewareDefs, newMiddlewareDefinition(middleware, Attached))
}
}
var groupHandlerDefs []HandlerDefinition
for _, handlerRegistration := range handlersGroupRegistration.HandlersRegistrations() {
var handlerDef HandlerDefinition
var middlewareDefs []MiddlewareDefinition
for _, middleware := range handlerRegistration.Middlewares() {
if !isConcreteMiddleware(middleware) {
providers = append(
providers,
fx.Annotate(
middleware,
fx.As(new(Middleware)),
fx.ResultTags(`group:"http-server-middlewares"`),
),
)
middlewareDefs = append(middlewareDefs, newMiddlewareDefinition(getReturnType(middleware), Attached))
} else {
middlewareDefs = append(middlewareDefs, newMiddlewareDefinition(middleware, Attached))
}
}
if !isConcreteHandler(handlerRegistration.Handler()) {
providers = append(
providers,
fx.Annotate(
handlerRegistration.Handler(),
fx.As(new(Handler)),
fx.ResultTags(`group:"http-server-handlers"`),
),
)
handlerDef = newHandlerDefinition(
handlerRegistration.Method(),
handlerRegistration.Path(),
getReturnType(handlerRegistration.Handler()),
middlewareDefs,
)
} else {
handlerDef = newHandlerDefinition(
handlerRegistration.Method(),
handlerRegistration.Path(),
handlerRegistration.Handler(),
middlewareDefs,
)
}
groupHandlerDefs = append(groupHandlerDefs, handlerDef)
}
handlersGroupDef := newHandlersGroupDefinition(
handlersGroupRegistration.Prefix(),
groupHandlerDefs,
groupMiddlewareDefs,
)
return fx.Options(
fx.Provide(providers...),
fx.Supply(
fx.Annotate(
handlersGroupDef,
fx.As(new(HandlersGroupDefinition)),
fx.ResultTags(`group:"http-server-handlers-group-definitions"`),
),
),
)
}