mirror of https://github.com/muety/wakapi.git
35 lines
945 B
Go
35 lines
945 B
Go
package utils
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import (
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"bytes"
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"encoding/json"
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"io"
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)
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// ParseJsonDropKeys parses the given JSON input object to an object of given type, while omitting the specified keys on the way.
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// This can be useful if parsing would normally fail due to ambiguous typing of some key, but that key is not of interest and can be dropped to avoid parse errors.
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// Dropping keys only works on top level of the object.
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func ParseJsonDropKeys[T any](r io.Reader, dropKeys ...string) (T, error) {
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var (
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result T
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resultTmp map[string]interface{}
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resultTmpBuf = new(bytes.Buffer)
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)
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if err := json.NewDecoder(r).Decode(&resultTmp); err != nil {
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return result, err
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}
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for _, k := range dropKeys {
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delete(resultTmp, k)
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}
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if err := json.NewEncoder(resultTmpBuf).Encode(resultTmp); err != nil {
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return result, err
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}
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if err := json.NewDecoder(resultTmpBuf).Decode(&result); err != nil {
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return result, err
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}
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return result, nil
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}
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