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Connect AWS Redshift and MySQL in our serverless environment

Use this template to Read rows from AWS Redshift table using them to insert rows into MySQL table.

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Read rows from AWS Redshift table

Used integrations:
class AwsRedshiftSourceSelect {
    async init() {
        // TODO: Create your aws-redshift credential
        // More info at https://yepcode.io/docs/integrations/aws-redshift/#credential-configuration
        this.awsRedshift = yepcode.integration.awsRedshift(
            "your-aws-redshift-credential-name"
        );

        // TODO: Customize the command to be executed
        // More info at https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-redshift-data/interfaces/executestatementcommandinput.html
        const {
            Id
        } = await this.awsRedshift.send(
            new ExecuteStatementCommand({
                ClusterIdentifier: "your-cluster-identifier",
                Database: "your-database-name",
                DbUser: "your-database-user",
                Sql: "SELECT * FROM your-table-name;",
            })
        );
        this.statementId = Id;
        await this._awaitStatementToFinish();
    }

    async fetch(publish, done) {
        let nextToken;
        // if result is returned paginated, iterate to publish entire statement result
        do {
            const result = await this.awsRedshift.send(
                new GetStatementResultCommand({
                    Id: this.statementId,
                    NextToken: nextToken,
                })
            );
            nextToken = result.NextToken;
            for (const record of result.Records) {
                // Each record come as a list of record cells
                // More info at https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-redshift-data/interfaces/getstatementresultcommandoutput.html

                // TODO: Customize record columns mapping to the item that will be published
                const item = {
                    id: record.id,
                    ...record
                };

                await publish(item);
            }
        } while (nextToken);
        done();
    }

    async close() {}

    _awaitStatementToFinish() {
        return new Promise((resolve, reject) => {
            const describeStatementCommand = new DescribeStatementCommand({
                Id: this.statementId,
            });

            // Configure interval to check statement status
            const intervalId = setInterval(async () => {
                const result = await this.awsRedshift.send(describeStatementCommand);
                if (result.Status === "FINISHED") {
                    clearInterval(intervalId);
                    resolve();
                    return;
                }

                if (result.Status === "FAILED" || result.Status === "ABORTED") {
                    clearInterval(intervalId);
                    reject();
                    return;
                }
            }, 1000);
        });
    }
}

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Insert rows into MySQL table

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

    async consume(item) {
        // TODO: Map your item to row and customize INSERT statement
        return await this.mysql
            .promise()
            .query(`INSERT INTO your_table_name SET ?`, {
                id: item.id,
                name: item.name,
            });
    }

    async close() {
        await this.mysql.end();
    }
}

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