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workflows

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filter.go

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61 lines (54 loc) · 971 Bytes

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package api

import (

"encoding/json"

"fmt"

"io"

"io/ioutil"

"github.com/itchyny/gojq"

)

func filterJSON(w io.Writer, input io.Reader, queryStr string) error {

query, err := gojq.Parse(queryStr)

if err != nil {

return err

}

jsonData, err := ioutil.ReadAll(input)

if err != nil {

return err

}

var responseData interface{}

err = json.Unmarshal(jsonData, &responseData)

if err != nil {

return err

}

iter := query.Run(responseData)

for {

v, ok := iter.Next()

if !ok {

break

}

if err, isErr := v.(error); isErr {

return err

}

if text, e := jsonScalarToString(v); e == nil {

_, err := fmt.Fprintln(w, text)

if err != nil {

return err

}

} else {

var jsonFragment []byte

jsonFragment, err = json.Marshal(v)

if err != nil {

return err

}

_, err = w.Write(jsonFragment)

if err != nil {

return err

}

_, err = fmt.Fprint(w, "\n")

if err != nil {

return err

}

}

}

return nil

}