45 lines
1.0 KiB
Go
45 lines
1.0 KiB
Go
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package dynamic
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import (
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"fmt"
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"reflect"
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"git.xdrm.io/go/aicra/internal/config"
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)
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// Build a handler from a service configuration and a HandlerFn
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//
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// a HandlerFn must have as a signature : `func(api.Request, inputStruct) (outputStruct, api.Error)`
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// - `inputStruct` is a struct{} containing a field for each service input (with valid reflect.Type)
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// - `outputStruct` is a struct{} containing a field for each service output (with valid reflect.Type)
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//
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// Special cases:
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// - it there is no input, `inputStruct` can be omitted
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// - it there is no output, `outputStruct` can be omitted
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func Build(fn HandlerFn, service config.Service) (*Handler, error) {
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h := &Handler{
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spec: makeSpec(service),
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fn: fn,
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}
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fnt := reflect.TypeOf(fn)
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if fnt.Kind() != reflect.Func {
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return nil, ErrHandlerNotFunc
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}
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if err := h.spec.checkInput(fnt); err != nil {
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return nil, fmt.Errorf("input: %w", err)
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}
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if err := h.spec.checkOutput(fnt); err != nil {
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return nil, fmt.Errorf("output: %w", err)
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}
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return h, nil
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}
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// Handle
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func (h *Handler) Handle() {
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}
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