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params.go
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/
params.go
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package lib
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/url"
"github.com/appscode/go-querystring/query"
)
type Params struct {
Params interface{}
}
type Values interface {
ToValues() (url.Values, error)
ToJSON() (io.Reader, error)
}
type ExportValues struct {
url.Values
}
func (m ExportValues) ToValues() (url.Values, error) {
return m.Values, nil
}
func (m ExportValues) ToJSON() (io.Reader, error) {
return nil, fmt.Errorf("not Implemented")
}
func (p Params) ToJSON() (io.Reader, error) {
_, err := p.ToValues()
if err != nil {
return nil, err
}
b, err := json.Marshal(p.Params)
if err != nil {
return nil, err
}
b, err = removeDashJSON(b)
return bytes.NewBuffer(b), err
}
func (p Params) ToValues() (url.Values, error) {
v, err := query.Values(p.Params)
if err != nil {
return url.Values{}, err
}
if err := CheckRequired(p.Params); err != nil {
return url.Values{}, err
}
return removeDash(v), nil
}
func removeDashJSON(b []byte) ([]byte, error) {
var m map[string]interface{}
err := json.Unmarshal(b, &m)
if err != nil {
return b, err
}
for key := range m {
if key == "-" {
delete(m, key)
}
}
return json.Marshal(m)
}
func removeDash(params url.Values) url.Values {
for key := range params {
if string(key[0]) == "-" {
params.Del(key)
}
}
return params
}
type UnmarshalJSON interface {
UnmarshalJSON(data []byte) error
}
type Resource struct {
Path string
Params interface{}
Method string
Entity UnmarshalJSON
}
func (r Resource) Out() (ResourceOut, error) {
path, err := BuildPath(r.Path, r.Params)
if err != nil {
return ResourceOut{}, err
}
return ResourceOut{
Resource: Resource{
Path: path,
Method: r.Method,
Entity: r.Entity,
},
Values: Params{Params: r.Params},
}, nil
}
type ResourceOut struct {
Resource
Values
}