40 lines
847 B
Go
40 lines
847 B
Go
package internal
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import (
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"encoding/json"
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"fmt"
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"time"
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"golang.org/x/oauth2"
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)
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// Token is an OAuth2 token which support decoding the expires_in attribute and return content errors
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type Token struct {
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oauth2.Token
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ExpiresIn int `json:"expires_in"` // expiration time in seconds
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}
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func (t *Token) UnmarshalJSON(data []byte) error {
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var s struct {
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oauth2.Token
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ExpiresIn int64 `json:"expires_in,omitempty"`
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// used by VW
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Error *string
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ErrorDescription *string `json:"error_description"`
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}
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err := json.Unmarshal(data, &s)
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if err == nil {
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t.Token = s.Token
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if s.Expiry.IsZero() && s.ExpiresIn != 0 {
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t.Expiry = time.Now().Add(time.Second * time.Duration(s.ExpiresIn))
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}
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if s.Error != nil && s.ErrorDescription != nil {
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err = fmt.Errorf("%s: %s", *s.Error, *s.ErrorDescription)
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}
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}
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return err
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}
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