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package fastly
import "fmt"
// Diff represents a diff of two versions as a response from the Fastly API.
type Diff struct {
Format string `mapstructure:"format"`
From int `mapstructure:"from"`
To int `mapstructure:"to"`
Diff string `mapstructure:"diff"`
}
// GetDiffInput is used as input to the GetDiff function.
type GetDiffInput struct {
// Service is the ID of the service (required).
Service string
// From is the version to diff from. This can either be a string indicating a
// positive number (e.g. "1") or a negative number from "-1" down ("-1" is the
// latest version).
From int
// To is the version to diff up to. The same rules for From apply.
To int
// Format is an optional field to specify the format with which the diff will
// be returned. Acceptable values are "text" (default), "html", or
// "html_simple".
Format string
}
// GetDiff returns the diff of the given versions.
func (c *Client) GetDiff(i *GetDiffInput) (*Diff, error) {
if i.Service == "" {
return nil, ErrMissingService
}
if i.From == 0 {
return nil, ErrMissingFrom
}
if i.To == 0 {
return nil, ErrMissingTo
}
path := fmt.Sprintf("service/%s/diff/from/%d/to/%d", i.Service, i.From, i.To)
resp, err := c.Get(path, nil)
if err != nil {
return nil, err
}
var d *Diff
if err := decodeJSON(&d, resp.Body); err != nil {
return nil, err
}
return d, nil
}
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