The POST /Files/deleteIcon API method is used to delete an uploaded file associated with a transaction or a user avatar. Depending on whether a transactionId is provided, it will either remove the file related to a specific transaction or delete the user’s avatar.

Functionality:

Deletes the file associated with the provided transactionId. If transactionId is not provided, it deletes the user's avatar file.

Request Parameters:

transactionId (optional): The ID of the transaction associated with the file to be deleted. If this parameter is omitted, the API will delete the user avatar.

Key Features:

Conditional Deletion: Deletes a file based on the presence of transactionId. If no transactionId is provided, the user’s avatar is deleted instead.
Flexible Management: Provides a way to manage and clean up both transaction-related files and user avatars efficiently.
Error Handling: Includes responses to handle cases where the file or avatar is not found or if the request is invalid.

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This API is useful for managing and removing files related to transactions or user profiles, ensuring that unnecessary or outdated files are properly handled.