// Update a snip identified by an ID with the data sent as request-body
func (snips *SnipsCollection) Update(c http.ResponseWriter, idString string, request *http.Request) {
// Parse ID of type string to int
var id int
var err error
if id, err = strconv.Atoi(idString); err != nil {
// The ID could not be converted from string to int
rest.NotFound(c)
return
}
// Find the snip with the ID
var snip *Snip
var ok bool
if snip, ok = snips.WithId(id); !ok {
// A snip with the passed ID could not be found in our collection
rest.NotFound(c)
}
// Get the request-body for data to update the snipped to
var data []byte
if data, err = ioutil.ReadAll(request.Body); err != nil {
// The request body could not be read, thus it was a bad request
rest.BadRequest(c, formatting)
return
}
// Set the snips body
snip.Body = string(data)
// Respond to indicate successful update
rest.Updated(c, request.URL.String())
}
// Find a snip from the collection, identified by the ID
func (snips *SnipsCollection) Find(c http.ResponseWriter, idString string, r *http.Request) {
id, err := strconv.Atoi(idString)
if err != nil {
rest.NotFound(c)
return
}
snip, ok := snips.WithId(id)
if !ok {
rest.NotFound(c)
return
}
fmt.Fprintf(c, "<h1>Snip %v</h1><p>%v</p>", snip.Id, snip.Body)
}
// Delete a snip identified by ID from the collection
func (snips *SnipsCollection) Delete(c http.ResponseWriter, idString string, r *http.Request) {
var id int
var err error
if id, err = strconv.Atoi(idString); err != nil {
rest.NotFound(c)
}
snips.Remove(id)
rest.NoContent(c)
}