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75 lines
1.6 KiB
Go
75 lines
1.6 KiB
Go
package adapters
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import (
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"net/http"
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"github.com/hay-kot/httpkit/errchain"
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"github.com/hay-kot/httpkit/server"
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)
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// Action is a function that adapts a function to the server.Handler interface.
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// It decodes the request body into a value of type T and passes it to the function f.
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// The function f is expected to return a value of type Y and an error.
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//
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// Example:
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//
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// type Body struct {
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// Foo string `json:"foo"`
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// }
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//
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// fn := func(r *http.Request, b Body) (any, error) {
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// // do something with b
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// return nil, nil
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// }
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//
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// r.Post("/foo", adapters.Action(fn, http.StatusCreated))
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func Action[T any, Y any](f AdapterFunc[T, Y], ok int) errchain.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) error {
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v, err := DecodeBody[T](r)
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if err != nil {
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return err
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}
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res, err := f(r, v)
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if err != nil {
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return err
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}
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return server.JSON(w, ok, res)
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}
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}
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// ActionID functions the same as Action, but it also decodes a UUID from the URL path.
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//
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// Example:
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//
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// type Body struct {
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// Foo string `json:"foo"`
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// }
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//
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// fn := func(r *http.Request, ID uuid.UUID, b Body) (any, error) {
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// // do something with ID and b
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// return nil, nil
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// }
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//
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// r.Post("/foo/{id}", adapters.ActionID(fn, http.StatusCreated))
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func ActionID[T any, Y any](param string, f IDFunc[T, Y], ok int) errchain.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) error {
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ID, err := RouteUUID(r, param)
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if err != nil {
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return err
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}
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v, err := DecodeBody[T](r)
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if err != nil {
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return err
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}
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res, err := f(r, ID, v)
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if err != nil {
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return err
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}
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return server.JSON(w, ok, res)
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}
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}
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