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golang merge map

Restu Wahyu Saputra answered on November 12, 2022 Popularity 8/10 Helpfulness 2/10

answer golang merge map

related golang merge map

golang merge map

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func MergeMaps(input ...[]map[string]interface{}) (res []map[string]interface{}) {
	data := make(map[string][]map[string]interface{})

	if len(input) > 0 {
		for i, _ := range input {
			for _, j := range input[i] {
				data["tags"] = append(data["tags"], j)
			}
		}
	} else {
		return res
	}

	return data["tags"]
}

Popularity 8/10 Helpfulness 2/10 Language go

Source: Grepper

Tags: go map merge

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Contributed on Nov 12 2022

Restu Wahyu Saputra

0 Answers Avg Quality 2/10

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func MergeMap(data1 interface{}, data2 interface{}) (map[string]interface{}, error) {
	if data1 == nil || data2 == nil {
		return nil, errors.New("data1 or data2 not to be empty")
	} else if reflect.ValueOf(data1).Kind().String() != reflect.Map.String() || reflect.ValueOf(data2).Kind().String() != reflect.Map.String() {
		return nil, errors.New("data1 or data2 must be map type")
	}

	mutex := sync.RWMutex{}
	map1 := make(map[string]interface{})
	map2 := make(map[string]interface{})
	res := make(map[string]interface{})
	safeMap := atomic.Value{}

	map1Bytes, err := json.Marshal(&data1)
	if err != nil {
		return nil, err
	}

	map2Bytes, err := json.Marshal(&data2)
	if err != nil {
		return nil, err
	}

	if err := json.Unmarshal(map1Bytes, &map1); err != nil {
		return nil, err
	}

	if err := json.Unmarshal(map2Bytes, &map2); err != nil {
		return nil, err
	}


	for k, v := range map1 {
		mutex.Lock()
		safeMap.Store(res)
		res[k] = v
		mutex.Unlock()
	}

	for k, v := range map2 {
		mutex.Lock()
		safeMap.Store(res)
		res[k] = v
		mutex.Unlock()
	}

	res = safeMap.Load().(map[string]interface{})
	return res, nil
}

Popularity 7/10 Helpfulness 1/10 Language go

Source: Grepper

Tags: map go merge

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Contributed on Apr 14 2023

Restu Wahyu Saputra

0 Answers Avg Quality 2/10

golang merge map

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