DynamoDB filter on a nested field value using Golang

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Table name: MyTable
Attribute name: data
Keyword to filter: rally
MyTable
data
rally
Given an example value, how do I filter items where the attributes.label array contains a rally?
attributes.label
rally
{
"type": {
"S": "play"
},
"attributes": {
"M": {
"term": {
"S": "end_term"
},
"label": {
"L": [
{
"S": "all_players"
},
{
"S": "rally"
},
{
"S": "race"
}
]
},
"currency": {
"S": "USD"
}
}
},
"id": {
"S": "a752d2"
}
}

{
"type": {
"S": "play"
},
"attributes": {
"M": {
"term": {
"S": "end_term"
},
"label": {
"L": [
{
"S": "all_players"
},
{
"S": "rally"
},
{
"S": "race"
}
]
},
"currency": {
"S": "USD"
}
}
},
"id": {
"S": "a752d2"
}
}

I used example below but it always returns 0 items.
0
input := &dynamodb.ScanInput{
TableName: aws.String("MyTable"),
FilterExpression: aws.String("contains(#path, :keyword)"),
ExpressionAttributeNames: map[string]string{
"#path": "attributes.label",
},
ExpressionAttributeValues: map[string]types.AttributeValue{
":keyword": &types.AttributeValueMemberS{Value: "rally"},
},
}

result, err := c.client.Scan(context.TODO(), input)
if err != nil {
log.Fatalf("failed to scan items: %v", err)
}

fmt.Println(" Result", len(result.Items))

for i, item := range result.Items {
var data map[string]interface{}
err := json.Unmarshal([]byte(item["data"].(*types.AttributeValueMemberS).Value), &data)
if err != nil {
log.Printf("failed to unmarshal item: %v", item)
continue
}
fmt.Printf(" Item (%d): %+v", i, data)
}

input := &dynamodb.ScanInput{
TableName: aws.String("MyTable"),
FilterExpression: aws.String("contains(#path, :keyword)"),
ExpressionAttributeNames: map[string]string{
"#path": "attributes.label",
},
ExpressionAttributeValues: map[string]types.AttributeValue{
":keyword": &types.AttributeValueMemberS{Value: "rally"},
},
}

result, err := c.client.Scan(context.TODO(), input)
if err != nil {
log.Fatalf("failed to scan items: %v", err)
}

fmt.Println(" Result", len(result.Items))

for i, item := range result.Items {
var data map[string]interface{}
err := json.Unmarshal([]byte(item["data"].(*types.AttributeValueMemberS).Value), &data)
if err != nil {
log.Printf("failed to unmarshal item: %v", item)
continue
}
fmt.Printf(" Item (%d): %+v", i, data)
}
Tags: amazon-web-services,go,amazon-dynamodbSource of the question:
https://stackoverflow.com/questions/79007384

Question and source license information:
https://meta.stackexchange.com/help/licensing
https://stackoverflow.com/

Видео DynamoDB filter on a nested field value using Golang канала Emrah KAYA