S3Read

Description

Enables you to read a file in an Amazon S3 bucket.

• Ensure that you have a properly configured Amazon Web Services (S3) connection resource set up under the Resources folder.

• S3 file names are case-sensitive; therefore, abc.JPG, abc.jpg, and ABC.jpg will be saved as different files. To ensure consistency, we recommend using lower-case file names and extensions: abc.jpg.

Configuration

Field	Required	Description	Example
Name	Required	The name of the activity. This name must be unique in a workflow.	Real-time Sensor Data Ingestion
Description	Optional	The description of the activity. We recommend you make this as clear as possible to guide execution, foster understanding, and support collaboration.	Continuously reads new sensor data files for real-time analytics.
Resource	Required	A predefined resource for accessing S3 buckets.	/Resources/S3 Resources/S3Connection
Bucket Name	Required	The name of the bucket that contains the file that you want to read.	sensor-data-stream
File Path	Required	The path within the specified S3 bucket that leads to the folder containing the file to be read. Note While entering the file path, only list the virtual directories without adding the bucket name, because the it is already specified (see Bucket Name, above).	For example, consider the following complete path: sensor-data/incoming/raw/sensor-data-stream In this complete path: sensor-data-stream is the bucket that contains the files that you want to list. sensor-data/incoming/raw is the path to the file.
File Name	Required	The name of the file that you want to read. Note: This field is case-sensitive and must precisely match the file name in S3. sensor_reading_1682860800.csv.zip	sensor_reading_1682860800.csv.zip
Encryption Type	Optional	The type of server-side encryption used when the file was stored in S3, if any. This is necessary to correctly decrypt the file during reading.	PGP
Content Type	Optional	The expected MIME type of the file content. While S3 stores metadata, explicitly defining it here can be useful for the reading process to interpret the data correctly (e.g., for parsing).	CSV
Compression Type	Optional	The type of compression applied to the file. This is necessary to decompress the file content after reading it from S3.	ZIP
Buffer Size	Optional	The size of the buffer (in Bytes) to use when reading the file from S3. This can impact performance, especially for large files. A larger buffer might improve read speeds but consume more memory.	8192

Input

Field	Required	Data Type	Description	Example
filepath	Optional	String	The path to the bucket (without the bucket name) that contains the file that you want to delete.	sensor-data/incoming/raw
fileName	Optional	String	The name of the file that you want to read. Note: This field is case-sensitive and must precisely match the file name in S3.	sensor_reading_1682860800.csv.zip
bufferSize	Optional	String	The size of the buffer (in Bytes) to use when reading the file from S3. This can impact performance, especially for large files. A larger buffer might improve read speeds but consume more memory.	8192
streaming	Optional	Boolean	Indicates whether you want to read the data in the file as a continuous flow (stream) of bytes instead of loading the entire file into memory at once	true

Output

Field	Required	Data Type	Description	Example
schema	Optional	NA	A custom schema that can be imported.	NA
content	Required	String	The content read from the file.	NA
contentLength	Required	Number	The size of the file in Bytes.	10292
fileName	Required	String	The name of the file that was read.	sensor_reading_1682860800.csv.zip
path	Required	String	The path to the bucket (without the bucket name) that contains the file that you want to delete.	sensor-data/incoming/raw