Get a Parsed JSON Response

Problem

You want to return the JSON response of an HTTP request as a parsed JavaScript object.

Solution

The HTTP Request node will return the body of a JSON response in the msg.payload as a string by default. Change the Return configuration of this node to a parsed JSON object to parse the JSON response in the msg.payload that can be easily accessed by downstream nodes.

Example

Flow JSON

[{"id":"14c60a10.794df6","type":"http request","z":"c9a81b70.8abed8","name":"","method":"GET","ret":"obj","url":"https://jsonplaceholder.typicode.com/posts/{{post}}","tls":"","x":390,"y":500,"wires":[["b4ea8dd4.61a05"]]},{"id":"b4ea8dd4.61a05","type":"debug","z":"c9a81b70.8abed8","name":"","active":true,"console":"false","complete":"payload.title","x":570,"y":500,"wires":[]},{"id":"3479192a.04f016","type":"inject","z":"c9a81b70.8abed8","name":"post id","topic":"","payload":"2","payloadType":"str","repeat":"","crontab":"","once":false,"x":90,"y":500,"wires":[["e69250cf.368fd"]]},{"id":"e69250cf.368fd","type":"change","z":"c9a81b70.8abed8","name":"","rules":[{"t":"set","p":"post","pt":"msg","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":230,"y":500,"wires":[["14c60a10.794df6"]]}]

We have reconfigured the flow from the Set the URL of a Request URL recipe by changing the HTTP Request node configuration. The Debug node has been modified to display only the title property of the parsed JSON response:

"qui est esse"

Discussion

If your HTTP request returns XML, the XML node can be used to parse JavaScript objects from XML documents.