Connect Clickhouse and AWS DynamoDB in our serverless environment

class ClickhouseSourceSelect {
    async init() {
        // TODO: Create your clickhouse credential
        // More info at https://yepcode.io/docs/integrations/clickhouse/#credential-configuration
        this.clickhouse = yepcode.integration.clickhouse(
            "your-clickhouse-credential-name"
        );
    }

    async fetch(publish, done) {
        // TODO: customize your sql query
        const sql = "SELECT * FROM your_table_name";

        const resultSet = await this.clickhouse.query({
            query: sql,
            format: "CSV",
        });
        const stream = resultSet.stream();
        stream.on("data", (rows) => {
            rows.forEach(publish);
        });
        stream.on("end", done);
    }

    async close() {
        await this.clickhouse.close();
    }
}

class AwsDynamodbTargetPut {
    async init() {
        // TODO: Create your aws-dynamodb credential
        // More info at https://yepcode.io/docs/integrations/aws-dynamodb/#credential-configuration
        this.awsDynamodb = yepcode.integration.awsDynamodb(
            "your-aws-dynamodb-credential-name"
        );
    }

    async consume(item) {
        // TODO: Customize the command to be executed
        // More info at: https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-dynamodb/interfaces/putitemcommandinput.html
        const putItemCommand = new PutItemCommand({
            TableName: "table-name",
            Item: {
                "table-primary-key-name": {
                    S: item.id
                },
                email: {
                    S: item.email
                },
                age: {
                    N: item.age
                },
                // etc
            },
        });

        await this.awsDynamodb.send(putItemCommand);
    }

    async close() {}
}