I am trying to fetch some data via an api and want to set the result of the api as an attribute of the flow file. I am able to fetch the data via the api but cannot seem to set it as a an attribute.
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Suyash Dhondkar
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You could make use of the EvaluateJsonPath processor to get the desired data from the flowfile into the Attribute.
The below sample flow invokes an API and gets data
The content of the response that is received
Properties set in the EvaluateJsonPath to pull the length value as an Attribute
The output of the processor sets the Attribute Key with its corresponding value
To set the API response as a whole into the Attribute set the KEY with the value as $ and Return Type as JSON
DataWrangler
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so whats the nifi expresssion to fetch the payload, I can see you have used $.length to fetch the length similarly how can I fetch the contents of api response – Suyash Dhondkar Aug 17 '23 at 14:42
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I guess you haven't gone through the whole answer then :) – DataWrangler Aug 17 '23 at 15:13