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parsejson.go
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parsejson.go
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/*
* Teleport
* Copyright (C) 2023 Gravitational, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package output
import (
"encoding/json"
"strings"
)
// ParseJSONFromModel parses a JSON object from the model output and attempts to sanitize contaminant text
// to avoid triggering self-correction due to some natural language being bundled with the JSON.
// The output type is generic, and thus the structure of the expected JSON varies depending on T.
func ParseJSONFromModel[T any](text string) (T, error) {
cleaned := strings.TrimSpace(text)
if strings.Contains(cleaned, "```json") {
cleaned = strings.Split(cleaned, "```json")[1]
}
if strings.Contains(cleaned, "```") {
cleaned = strings.Split(cleaned, "```")[0]
}
cleaned = strings.TrimPrefix(cleaned, "```json")
cleaned = strings.TrimPrefix(cleaned, "```")
cleaned = strings.TrimSuffix(cleaned, "```")
cleaned = strings.TrimSpace(cleaned)
var output T
err := json.Unmarshal([]byte(cleaned), &output)
if err != nil {
return output, newInvalidOutputErrorWithParseError(err)
}
return output, nil
}