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web_api.go
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web_api.go
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package goappbase
import (
"encoding/json"
"fmt"
"io"
"github.com/gin-contrib/sessions"
"github.com/gin-gonic/gin"
)
type (
ApiRequest struct {
inData map[string]interface{}
outData map[string]interface{}
session sessions.Session
context *gin.Context
}
ApiRequestHandler func(r *ApiRequest) error
)
func newApiRequest(c *gin.Context) (*ApiRequest, error) {
r := &ApiRequest{
inData: make(map[string]interface{}),
outData: make(map[string]interface{}),
context: c,
}
//prepare session
r.session = sessions.Default(c)
r.session.Options(sessions.Options{
MaxAge: 24 * 3600,
Path: "/",
})
//prepare input data
body, err := io.ReadAll(io.LimitReader(c.Request.Body, 1048576))
if err != nil {
return nil, err
}
//log.Println(string(body))
if json.Valid(body) {
if err := json.Unmarshal(body, &r.inData); err != nil {
return nil, err
}
}
//log.Println(r.inData)
return r, nil
}
func (r *ApiRequest) GetInData(name string) string {
if value, ok := r.inData[name]; ok {
if _, ok := value.(string); ok {
return value.(string)
} else {
return fmt.Sprintf("%v", value)
}
} else {
return ""
}
}
func (r *ApiRequest) GetInDataInt(name string, default_value int) int {
if value, ok := r.inData[name]; ok {
//log.Println(reflect.TypeOf(value))
if _, ok := value.(int); ok {
return value.(int)
}
if _, ok := value.(float64); ok {
return int(value.(float64))
}
}
return default_value
}
func (r *ApiRequest) GetOutData(name string) string {
if value, ok := r.outData[name]; ok {
return value.(string)
} else {
return ""
}
}
func (r *ApiRequest) SetOutData(name string, value interface{}) {
r.outData[name] = value
}
func (r *ApiRequest) setStatus(status, message string) {
r.SetOutData("status", status)
r.SetOutData("message", message)
}
func (r *ApiRequest) SetOkStatus(message string) {
r.setStatus("ok", message)
}
func (r *ApiRequest) SetErrorStatus(message string) {
r.setStatus("error", message)
}
func (r *ApiRequest) Session() sessions.Session {
return r.session
}
func (r *ApiRequest) SessionClear() {
r.session.Clear()
r.session.Options(sessions.Options{
MaxAge: -1, //remove immediately
Path: "/",
})
r.session.Save()
}
func (r *ApiRequest) SessionGet(key string) any {
return r.session.Get(key)
}
func (r *ApiRequest) SessionSet(key string, value any) {
r.session.Set(key, value)
}