Hello,
You keep appending json objects to your file, which produces invalid json
after the first item.
You either need to produce valid json, for instance by putting your items
into an array, or use a streaming json parser that parses items
individually.
I have changed your example to perform the last option and here it
is: https://play.golang.org/p/n6fWA8bTAb.
Note that you should probably return errors instead of bailing out right
away, but it all depends on what you are trying to do.
P.
Le lundi 20 mars 2017 23:27:15 UTC+1, Paulius Daubaris a écrit :
>
> Hello, I am writing this application, where I can store some reminders for
> myself in CLI to not forget something important.
>
> My question is how can I save my input data or lets say what's the best
> way to do so? I've tried JSON, but it didnt work out, primarily because I
> cant really figure it out. Anyhow if JSON is the way to go, I've been stuck
> and it got me really frustrated.
>
> Example:
>
> The function which creates new reminder:
>
> func newReminder() {
> checkFile() //Simple check if file is not in the directory it creates
> one
>
> var text string
> date := time.Now()
> dateString := date.String()
> file, err := os.OpenFile("rem.json", os.O_RDWR|os.O_APPEND,
> os.ModePerm)
>
> if err != nil {
> log.Fatal(err)
> }
>
> fmt.Print("Description: ")
>
> scanner := bufio.NewScanner(os.Stdin)
> if ok := scanner.Scan(); ok {
> text = scanner.Text()
> }
>
> reminder := &Name{dateString[:19], text}
> newReminder, _ := json.Marshal(&reminder)
>
> file.Write(newReminder)
> file.Close()
> }
>
> Here everything is working fine. I execute it with ./main -n, write new
> reminder, display it and it goes well. Although when I add another reminder
> and try to display it i get an error: invalid character '{' after
> top-level value
> Its because when I cat out my json file it looks like this :
>
> {"Date":"2017-03-20 10:46:48","Description":"new"}{"Date":"2017-03-20
> 10:46:51","Description":"new .go"}
>
> So basically it has no root node. So again, is there a way to wrap it up? If
> the code is confusing here's the whole. https://play.golang.org/p/d0mlZw3ZH-
>
> Thanks in advance.
>
>
>
>
>
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