The GET /Files/transactionIcon/{transactionId} API method is used to retrieve an image associated with a specific transaction. By providing the transactionId as a path parameter, the system returns the image that was uploaded for the transaction, encoded in base64 format, along with its content type.

Functionality:

Fetches the image associated with a specific transaction ID.
Returns the image in base64-encoded format with its MIME type (e.g., image/jpeg).

Path Parameter:

transactionId (required): The unique identifier for the transaction to which the image is linked.

Response:

{  
    "Content": "base64-encoded file content",  
    "ContentType": "image/jpeg"  
}

Key Features:

Base64-encoded Image: Returns the transaction-associated image as a base64-encoded string.
Content Type Information: Provides the MIME type (e.g., image/jpeg) to enable correct rendering of the image.
Transaction-Based Lookup: Ensures secure and specific retrieval of images linked to individual transactions.

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This API is useful for retrieving transaction-related images that can be displayed in banking or transaction management applications, helping enhance the transparency and clarity of transaction details.

404returns NotFound() when there is no image