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Minor update

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This commit is contained in:
TwinProduction 2020-04-14 20:31:30 -04:00
parent 2878ad6a27
commit 18b8290e86
1 changed files with 9 additions and 13 deletions
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22
jsonpath/jsonpath.go
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@ -7,11 +7,12 @@ import (
"strings"
)
// Eval is a half-baked json path implementation that needs some love
func Eval(path string, b []byte) (string, error) {
var object interface{}
err := json.Unmarshal(b, &object)
if err != nil {
// Try to unmarshall it into an array instead
// Try to unmarshal it into an array instead
return "", err
}
return walk(path, object)
@ -20,19 +21,14 @@ func Eval(path string, b []byte) (string, error) {
func walk(path string, object interface{}) (string, error) {
keys := strings.Split(path, ".")
currentKey := keys[0]
// if there's more than one key, then walk deeper
if len(keys) > 1 {
switch value := extractValue(currentKey, object).(type) {
case map[string]interface{}:
return walk(strings.Replace(path, fmt.Sprintf("%s.", currentKey), "", 1), value)
case interface{}:
return fmt.Sprintf("%v", value), nil
default:
return "", fmt.Errorf("couldn't walk through '%s' because type was '%T', but expected 'map[string]interface{}'", currentKey, value)
}
switch value := extractValue(currentKey, object).(type) {
case map[string]interface{}:
return walk(strings.Replace(path, fmt.Sprintf("%s.", currentKey), "", 1), value)
case interface{}:
return fmt.Sprintf("%v", value), nil
default:
return "", fmt.Errorf("couldn't walk through '%s' because type was '%T', but expected 'map[string]interface{}'", currentKey, value)
}
// if there's only one key and the target key is that key, then return its value
return fmt.Sprintf("%v", extractValue(currentKey, object)), nil
}
func extractValue(currentKey string, value interface{}) interface{} {