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Connect Azure Blob CSV file and Azure Blob CSV file in our serverless environment

Use this template to Read CSV file entries from Azure Blob container using them to create CSV file entries in Azure Blob Container.

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Read CSV file entries from Azure Blob container

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

    async fetch(publish, done) {
        // TODO: customize the container name and blob name to download
        // // More info at https://docs.microsoft.com/en-us/javascript/api/@azure/storage-blob/blobserviceclient?view=azure-node-latest#@azure-storage-blob-blobserviceclient-getcontainerclient
        const containerClient = this.azureBlob.getContainerClient("container-name");
        const blobClient = containerClient.getBlobClient("blob-name");
        const result = await blobClient.download();

        // result.readableStreamBody is a stream of object content
        result.readableStreamBody
            .pipe(
                csv.parse({
                    delimiter: ",",
                    columns: true,
                })
            )
            .on("data", publish)
            .on("end", done);
    }

    async close() {}
}

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Create CSV file entries in Azure Blob Container

Used integrations:
class AzureBlobTargetUploadCsv {
    async init() {
        // TODO: Create your azure blob credential
        // More info at https://yepcode.io/docs/integrations/azure-blob/#credential-configuration
        this.azureBlob = yepcode.integration.azureBlob(
            "your-azure-blob-credential-name"
        );
        // TODO: customize the container name and blob name to upload
        // // More info at https://docs.microsoft.com/en-us/javascript/api/@azure/storage-blob/blobserviceclient?view=azure-node-latest#@azure-storage-blob-blobserviceclient-getcontainerclient
        const containerClient = this.azureBlob.getContainerClient("container-name");
        const blockBlobClient = containerClient.getBlockBlobClient("blob-name");

        // Transforms the items into a csv format
        this.stringifier = csv.stringify({
            delimiter: ",",
        });
        this.upload = blockBlobClient.uploadStream(this.stringifier);
    }

    async consume(item) {
        // TODO: customize the csv row to create from your item content
        const csvRow = [item.value, item.text];
        this.stringifier.write(csvRow);
    }

    async close() {
        try {
            this.stringifier.end();
        } catch (error) {
            console.error(`Error ending stringifier`, error);
        }
        try {
            await this.upload;
        } catch (error) {
            console.error(`Error ending upload`, error);
        }
    }
}

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