Upload a multipart file from an external file system

This example demonstrates two different methods of uploading files from external file systems using the HTTP Client Snap. The first pipeline reads a file from an S3 bucket and uploads it to Slack channel using the Slack API. The second pipeline uploads a file from the WASB (Windows Azure Storage Blob) location and sends it to the same Slack channel using the Slack API.



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Upload a file from S3 bucket
  1. Configure the JSON Generator Snap with the Slack channel ID and initial comment for S3 file upload. 
    [
    {
        "channels": "C02UJ4872QY",
        "initial_comment": "Demonstration of the multipart upload of a S3 file using HTTP Client Snap's binary input view"
    }
]
  2. Connect the S3 Download Snap to download the specified file from the specified S3 bucket.

  3. Configure the HTTP Client Snap to send a multipart POST request to the Slack channel using the Slack API. Select Binary for the Input view.

    The Snap uploads the S3 file and sends the uploaded file message to the specified Slack channel.
Upload a file from Azure storage
  1. Configure the JSON Generator Snap with the Slack channel ID and initial comment for WASB file upload.
    [
    {
        "channels": "C02UJ4872QY",
        "initial_comment": "Demonstration of the multipart upload of a 'wasb' file using HTTP Client Snap's binary input view"
    }
]
  2. Connect the File Reader Snap to read the file from the specified WASB location. Use the Azure Storage Account to connect to Azure storage.

  3. Configure the HTTP Client Snap to send a multipart POST request to Slack using the Slack API. Select Binary for the Input view.

    The Snap writes the S3 file and sends the uploaded file message to the specified Slack channel.