forked from santegoeds/oanda
/
util.go
76 lines (65 loc) · 1.85 KB
/
util.go
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// Copyright 2014 Tjerk Santegoeds
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oanda
import (
"encoding/json"
"fmt"
"net/url"
"strconv"
"strings"
"time"
)
type optionalArgs url.Values
func (oa optionalArgs) SetInt(k string, n int) {
url.Values(oa).Set(k, strconv.Itoa(n))
}
func (oa optionalArgs) SetFloat(k string, f float64) {
url.Values(oa).Set(k, strconv.FormatFloat(f, 'f', -1, 64))
}
func (oa optionalArgs) SetIntArray(k string, ia []int) {
switch n := len(ia); {
case n == 0:
return
case n == 1:
url.Values(oa).Set(k, strconv.Itoa(ia[0]))
default:
strIds := make([]string, n)
for i, v := range ia {
strIds[i] = strconv.Itoa(v)
}
url.Values(oa).Set("ids", strings.Join(strIds, ","))
}
}
func (oa optionalArgs) SetTime(k string, t time.Time) {
url.Values(oa).Set(k, t.UTC().Format(time.RFC3339))
}
func (oa optionalArgs) SetStringer(k string, v fmt.Stringer) {
url.Values(oa).Set(k, v.String())
}
func (oa optionalArgs) SetBool(k string, b bool) {
url.Values(oa).Set(k, strconv.FormatBool(b))
}
// Time embeds time.Time and serves to Unmarshal from Integer values.
type Time struct {
time.Time
}
// Implements the json.UnmarshalJSON interface.
func (t *Time) UnmarshalJSON(data []byte) error {
var secs int64
if err := json.Unmarshal(data, &secs); err != nil {
return err
}
t.Time = time.Unix(secs, 0)
return nil
}