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Set a Request Header

Problem#

You need to send an HTTP request with specific request headers.

Solution#

Set the msg.headers field to the field value pairs of the request headers you would like to include in the message sent to the HTTP request node.

Example#

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Flow JSON
[{"id":"92272f91.20a43","type":"inject","z":"c9a81b70.8abed8","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"x":120,"y":760,"wires":[["af92df2f.3032e"]]},{"id":"64da113d.24a75","type":"http request","z":"c9a81b70.8abed8","name":"post to FRED","method":"POST","ret":"txt","url":"http://mike.fred.sensetecnic.com/api/test","tls":"","x":520,"y":760,"wires":[["31ab53be.5111dc"]]},{"id":"af92df2f.3032e","type":"function","z":"c9a81b70.8abed8","name":"set payload and headers","func":"msg.payload = \"data to post\";\nmsg.headers = {};\nmsg.headers['X-Auth-User'] = 'mike';\nmsg.headers['X-Auth-Key'] = 'fred-key';\n\nreturn msg;","outputs":1,"noerr":0,"x":310,"y":760,"wires":[["64da113d.24a75"]]},{"id":"31ab53be.5111dc","type":"debug","z":"c9a81b70.8abed8","name":"","active":true,"console":"false","complete":"false","x":690,"y":760,"wires":[]}]

In this example we set the X-Auth-User and X-Auth-Key request headers to call a private HTTP input node on the FRED Ignite cloud service.

The code in the Function node below adds these additional message fields by adding a msg.headers object, and setting the header field/values in this object as shown.

msg.payload = "data to post";msg.headers = {};msg.headers['X-Auth-User'] = 'mike';msg.headers['X-Auth-Key'] = 'fred-key';return msg;