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Query param parsing, download button and Date filtering (#18)
* a lot * fixing small issues
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,6 +1,76 @@ | ||
package functions | ||
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import ( | ||
"fmt" | ||
"log" | ||
"net/url" | ||
"os" | ||
"strconv" | ||
"time" | ||
) | ||
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const ( | ||
AccountIdQueryParam = "accountId" | ||
TransactionNumQueryParam = "numTransactions" | ||
StartDateParam = "startDate" | ||
EndDateParam = "endDate" | ||
) | ||
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// QueryParams struct to hold the query parameters | ||
type QueryParams struct { | ||
AccountID *string | ||
NumTransactions *int32 | ||
StartDate *time.Time | ||
EndDate *time.Time | ||
} | ||
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func (q *QueryParams) String() string { | ||
return fmt.Sprintf("QueryParams{AccountID: %s, NumTransactions: %d, StartDate: %s, EndDate: %s}", *q.AccountID, *q.NumTransactions, *q.StartDate, *q.EndDate) | ||
} | ||
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// FetchQueryParams extracts query parameters from the url.Values map | ||
func FetchQueryParams(queryParams url.Values) *QueryParams { | ||
params := &QueryParams{} | ||
defaultTransactions := int32(20) | ||
params.NumTransactions = &defaultTransactions | ||
logger := log.New(os.Stdout, "query params:", log.Default().Flags()) | ||
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// Fetch "accountId" | ||
if accountID := queryParams.Get(AccountIdQueryParam); accountID != "" { | ||
params.AccountID = &accountID | ||
} | ||
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// Fetch "numTransactions" | ||
if numTransactions := queryParams.Get(TransactionNumQueryParam); numTransactions != "" { | ||
if num, err := strconv.Atoi(numTransactions); err == nil { | ||
myInt := int32(num) | ||
params.NumTransactions = &myInt | ||
} | ||
} | ||
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// Fetch "startDate" | ||
if startDate := queryParams.Get(StartDateParam); startDate != "" { | ||
log.Println(fmt.Sprintf("Start date is %s", startDate)) | ||
timeStartDate, err := time.Parse(time.RFC3339, startDate) | ||
if err == nil { | ||
params.StartDate = &timeStartDate | ||
} | ||
} | ||
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// Fetch "endDate" | ||
if endDate := queryParams.Get(EndDateParam); endDate != "" { | ||
timeEndDate, err := time.Parse(time.RFC3339, endDate) | ||
if err == nil { | ||
params.EndDate = &timeEndDate | ||
} | ||
} | ||
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if params.StartDate != nil && params.EndDate != nil { | ||
maxTransactions := int32(10000) | ||
params.NumTransactions = &maxTransactions | ||
} | ||
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logger.Println(fmt.Sprintf("query params are: %v", params)) | ||
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return params | ||
} |
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