# Posting audio files using HTTP request node

**URL:** <https://discourse.nodered.org/t/posting-audio-files-using-http-request-node/2254>\
**Category:** General\
**Created:** [13 August 2018 14:08 UTC](https://discourse.nodered.org/t/posting-audio-files-using-http-request-node/2254 "2018-08-13T14:08:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![emmajdaws](https://avatars.discourse-cdn.com/v4/letter/e/da6949/32.png) [@emmajdaws](https://discourse.nodered.org/u/emmajdaws)\
**Post date:** [13 August 2018 14:08 UTC](https://discourse.nodered.org/t/posting-audio-files-using-http-request-node/2254/1 "2018-08-13T14:08:46Z")

</div>

I have a REST API that is expecting an audio file as request.files['audio\_file']. I have msg.payload set to the audio buffer, msg.headers content-type set to audio/\*

The request hits the application but it can't find 'audio\_file'. How do I specify the filename as part of the POST?