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apiware.go
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apiware.go
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// Copyright 2016 HenryLee. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package apiware
import (
"errors"
"net/http"
// "github.com/valyala/fasthttp"
)
type (
// Apiware binds request paramters
Apiware struct {
ParamNameMapper
Pathdecoder
Bodydecoder
}
// Pathdecoder parses path params function, return pathParams of KV type
Pathdecoder func(urlPath, pattern string) (pathParams KV)
)
// New creates a new apiware engine.
// Parse and store the struct object, requires a struct pointer,
// if `paramNameMapper` is nil, `paramNameMapper=toSnake`,
// if `bodydecoder` is nil, `bodydecoder=bodyJONS`,
func New(pathdecoder Pathdecoder, bodydecoder Bodydecoder, paramNameMapper ParamNameMapper) *Apiware {
return &Apiware{
ParamNameMapper: paramNameMapper,
Pathdecoder: pathdecoder,
Bodydecoder: bodydecoder,
}
}
// Register checks whether structs meet the requirements of apiware, and register them.
// note: requires a structure pointer.
func (a *Apiware) Register(structPointers ...interface{}) error {
var errStr string
for _, obj := range structPointers {
err := Register(obj, a.ParamNameMapper, a.Bodydecoder)
if err != nil {
errStr += err.Error() + "\n"
}
}
if len(errStr) > 0 {
return errors.New(errStr)
}
return nil
}
// Bind the net/http request params to the structure and validate.
// note: structPointer must be structure pointer.
func (a *Apiware) Bind(
structPointer interface{},
req *http.Request,
pattern string,
) error {
return Bind(structPointer, req, a.Pathdecoder(req.URL.Path, pattern))
}