get Request Text
Return (nullable) HTTP request body (as text string) if available, otherwise null.
If non-null, the returned value will typically be a JSON text string.
Note: If {@link com.sap.cloud.mobile.kotlin.odata.PendingRequest#method PendingRequest.method} is createMedia, uploadMedia or uploadStream, then null will be returned even if the stream's media type indicates text.
- See Also:
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{@link com.sap.cloud.mobile.kotlin.odata.PendingRequest#getRequestData() PendingRequest.getRequestData}.
Return
(nullable) HTTP request body (as text string) if available, otherwise null.