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package api2go
import (
"fmt"
"net/http"
"net/url"
"github.com/manyminds/api2go/jsonapi"
)
// The Response struct implements api2go.Responder and can be used as a default
// implementation for your responses
// you can fill the field `Meta` with all the metadata your application needs
// like license, tokens, etc
type Response struct {
Res interface{}
Code int
Meta map[string]interface{}
Pagination Pagination
}
// Metadata returns additional meta data
func (r Response) Metadata() map[string]interface{} {
return r.Meta
}
// Result returns the actual payload
func (r Response) Result() interface{} {
return r.Res
}
// StatusCode sets the return status code
func (r Response) StatusCode() int {
return r.Code
}
func buildLink(base string, r *http.Request, pagination map[string]string) jsonapi.Link {
params := r.URL.Query()
for k, v := range pagination {
qk := fmt.Sprintf("page[%s]", k)
params.Set(qk, v)
}
if len(params) == 0 {
return jsonapi.Link{Href: base}
}
query, _ := url.QueryUnescape(params.Encode())
return jsonapi.Link{Href: fmt.Sprintf("%s?%s", base, query)}
}
// Links returns a jsonapi.Links object to include in the top-level response
func (r Response) Links(req *http.Request, baseURL string) (ret jsonapi.Links) {
ret = make(jsonapi.Links)
if r.Pagination.Next != nil {
ret["next"] = buildLink(baseURL, req, r.Pagination.Next)
}
if r.Pagination.Prev != nil {
ret["prev"] = buildLink(baseURL, req, r.Pagination.Prev)
}
if r.Pagination.First != nil {
ret["first"] = buildLink(baseURL, req, r.Pagination.First)
}
if r.Pagination.Last != nil {
ret["last"] = buildLink(baseURL, req, r.Pagination.Last)
}
return
}
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