why format of time changes in JSON binding? - datetime

Question

i have created a struct and it contains two time.Time formatted fields, named with json tags: start_time and end_time.
type MyStruct struct {
StartTime time.Time `json:"start_time"`
EndTime time.Time `json:"end_time"`
}
when i'm trying to send a PUT request over HTTP using gin framework to update those values, the time format which i'm sending, changes in sent struct.
what i'm sending:
curl -X PUT -H 'Content-Type: application/json'
http://my_address -d '{
"start_time": "2021-04-27T22:24:31Z",
"end_time": "2021-11-01T22:24:31Z"
}'
what it receives:
start_time="2021-04-27 22:24:31 +0000 UTC",
end_time="2021-11-01 22:24:31 +0000 UTC",
in the other hand,
i'm saving the struct in a couchbase and as returning value of query, i'm sending back the document(my struct):
my query:
Update BucketName as e
set start_time="2021-04-27 22:24:31 +0000 UTC",
end_time="2021-11-01 22:24:31 +0000 UTC" where ( my document equality condition)
returning e
and it executes with no errors.
when i'm trying to read the returned struct,
my code to reading it:
var s domain.MyStructSample //
err = result.One(&s)
if err != nil {
if err == gocb.ErrNoResult {
return nil, errors.New("there is no result")
}
logger.ZSLogger.Errorf("error on update one item from my struct with error :%s", err)
return nil, err
}
gocb generates errors on those time items and here is the error:
"message":"error on update one item from my struct with error :parsing time \"\"2021-11-01 22:24:31 +0000 UTC\"\" as \"\"2006-01-02T15:04:05Z07:00\"\": cannot parse \" 22:24:31 +0000 UTC\"\" as \"T\""}
by the way, as i said, update is done with no errors ( query executes with no errors).
so what should i do with it ?

Answer 1

How did you generate this query:
Update BucketName as e
set start_time="2021-04-27 22:24:31 +0000 UTC",
end_time="2021-11-01 22:24:31 +0000 UTC" where ( my document equality condition)
returning e
As the error says, time data stored in couchbase should be in format RFC3339 (2006-01-02T15:04:05Z07:00) instead of the default 2006-01-02 15:04:05 -0700 MST, so maybe you should insert data with query:
Update BucketName as e
set start_time="2021-04-27T22:24:31Z07:00",
end_time="2021-11-01T22:24:31Z07:00" where ( my document equality condition)
returning e
If you have problem formatting time, read the doc https://golang.cafe/blog/golang-time-format-example.html
And, as #MrFuppes commented, if you need to customize JSON output format, read this How to format timestamp in outgoing JSON