github.com/greenpau/go-authcrunch@v1.1.4/pkg/util/data/map_traversal.go (about)

     1  // Copyright 2022 Paul Greenberg greenpau@outlook.com
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package data
    16  
    17  import (
    18  	"strings"
    19  )
    20  
    21  // GetValueFromMapByPath returns value from map based on the key path.
    22  func GetValueFromMapByPath(s string, m map[string]interface{}) interface{} {
    23  	nm := m
    24  	arr := strings.Split(s, "|")
    25  	for i, k := range arr {
    26  		if v, exists := nm[k]; exists {
    27  			if i == (len(arr) - 1) {
    28  				return v
    29  			}
    30  			switch vt := v.(type) {
    31  			case map[string]interface{}:
    32  				nm = vt
    33  			default:
    34  				return ""
    35  			}
    36  			continue
    37  		}
    38  		break
    39  	}
    40  	return ""
    41  }