Your best strategy for this case would be to leverage Expression Language [1] in the Remote URL field of your InvokeHTTP. You could then use a GetFile to take your set of URLs from a file on the filesystem or even an InovkeHTTP to another location to introduce your list of URLs scheduling strategy of Cron to pull in that list as desired. This list could then be split into separate events using a SplitText. From here, we can promote the contents of each of these splits to an attribute (perhaps target.url) using ExtractText. This would then be passed to your InvokeHTTP which would make use of the target.url attribute by specifying ${target.url} in the "Remote URL" field mentioned above. [1]https://nifi.apache.org/docs/nifi-docs/html/expression-language-guide.html ... View more