# HTTP Downlink problems : no match founds with curl **URL:** \ **Category:** Uncategorized\ **Created:** [August 20, 2020, 11:39am UTC](https://www.thethingsnetwork.org/forum/t/http-downlink-problems-no-match-founds-with-curl/39367 "2020-08-20T11:39:00Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![EPAI](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/epai/32/25844_2.png) [@EPAI](https://www.thethingsnetwork.org/forum/u/EPAI)\ **Post date:** [August 20, 2020, 11:39am UTC](https://www.thethingsnetwork.org/forum/t/http-downlink-problems-no-match-founds-with-curl/39367/1 "2020-08-20T11:39:00Z")
Dear All, I try to send data to my end node using HTTP. But when I send the following Curl command, I’ve a “no match found” returned!! The uplink is ok and test with [https://hookbin.com/](https://hookbin.com/) `curl -X POST --data '{"dev_id":"myNode","port":1,"confirmed":false,"payload_fields":{"led":true}}' https://integrations.thethingsnetwork.org/ttn-eu/api/v2/down/myApp/test?key=ttn-account-v2.my_secret` Thanks a lot for your help! ---
**Author:** ![arjanvanb](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/arjanvanb/32/46626_2.png) [@arjanvanb](https://www.thethingsnetwork.org/forum/u/arjanvanb)\ **Post date:** [August 20, 2020, 12:37pm UTC](https://www.thethingsnetwork.org/forum/t/http-downlink-problems-no-match-founds-with-curl/39367/2 "2020-08-20T12:37:39Z")
Please show the full/exact error message, and please use `curl -i` or even `curl -v` for more verbose logging. > [@EPAI](#): > > The uplink is ok and test with [https://hookbin.com/](https://hookbin.com/) Is the URL you’re using the same as given in the `downlink_url` attribute in the JSON payload that is posted to Hookbin? Showing us `"dev_id":"myNode"` in the JSON message along with `/myApp/test` in the URL is quite confusing, if that’s how you redacted some details. If you’re on Windows, then see [Using curl or Postman for the HTTP Integration on Windows](https://www.thethingsnetwork.org/forum/t/using-curl-or-postman-for-the-http-integration-on-windows/12467). Also, please show the code of your Encoder in TTN Console. (Or, if you don’t have one, then don’t use `payload_fields`.) ---
**Author:** ![EPAI](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/epai/32/25844_2.png) [@EPAI](https://www.thethingsnetwork.org/forum/u/EPAI)\ **Post date:** [August 20, 2020, 1:27pm UTC](https://www.thethingsnetwork.org/forum/t/http-downlink-problems-no-match-founds-with-curl/39367/3 "2020-08-20T13:27:41Z")
Thanks Arjan; Same message with curl -i. Here my command: `curl -i -X POST --data '{"dev_id":"myNode","port":1,"confirmed":false,"payload_fields":{"led":true}}' https://integrations.thethingsnetwork.org/ttn-eu/api/v2/down/myApp/test?key=ttn-account-v2.my_secret` And here the response: `no matches found: https://integrations.thethingsnetwork.org/ttn-eu/api/v2/down/myApp/test?key=ttn-account-v2.my_secret` Yes, the URL is an copy past of the given in the downlink\_url I’m not on Windows The Encoder used: ```javascript function Encoder(object, port) { // Encode downlink messages sent as // object to an array or buffer of bytes. var bytes = []; if (port === 1) bytes[0] = object.led ? 1 : 0; return bytes; } ``` ---
**Author:** ![arjanvanb](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/arjanvanb/32/46626_2.png) [@arjanvanb](https://www.thethingsnetwork.org/forum/u/arjanvanb)\ **Post date:** [August 20, 2020, 2:51pm UTC](https://www.thethingsnetwork.org/forum/t/http-downlink-problems-no-match-founds-with-curl/39367/4 "2020-08-20T14:51:49Z")
If `curl -i` does not give you any [headers as sent by the server](https://www.thethingsnetwork.org/forum/t/having-trouble-sending-downlink-with-http-integration/38217/2), then this is some weird problem (with a weird message) from your local system, not from TTN’s server. Maybe some hidden newline in the command line? Note that only the key is secret; redacting the other parts of the actual command you’re using is just adding confusion. ---
**Author:** ![EPAI](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/epai/32/25844_2.png) [@EPAI](https://www.thethingsnetwork.org/forum/u/EPAI)\ **Post date:** [August 20, 2020, 3:31pm UTC](https://www.thethingsnetwork.org/forum/t/http-downlink-problems-no-match-founds-with-curl/39367/5 "2020-08-20T15:31:53Z")
It’s working now. Juste added double quotes for URL!!! Thanks a lot Arjan ---
**Author:** ![arjanvanb](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/arjanvanb/32/46626_2.png) [@arjanvanb](https://www.thethingsnetwork.org/forum/u/arjanvanb)\ **Post date:** [August 20, 2020, 3:48pm UTC](https://www.thethingsnetwork.org/forum/t/http-downlink-problems-no-match-founds-with-curl/39367/6 "2020-08-20T15:48:41Z")
Ah, does the secret hold some funny character(s)? And what OS are you using? ---
**Author:** ![EPAI](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/epai/32/25844_2.png) [@EPAI](https://www.thethingsnetwork.org/forum/u/EPAI)\ **Post date:** [August 24, 2020, 9:07am UTC](https://www.thethingsnetwork.org/forum/t/http-downlink-problems-no-match-founds-with-curl/39367/7 "2020-08-24T09:07:25Z")
Sorry for the delay… I’m using MAC OS and no the secret hold no funny character… Thanks very much for your help Arjan ---
**Author:** ![arjanvanb](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/arjanvanb/32/46626_2.png) [@arjanvanb](https://www.thethingsnetwork.org/forum/u/arjanvanb)\ **Post date:** [August 24, 2020, 9:20am UTC](https://www.thethingsnetwork.org/forum/t/http-downlink-problems-no-match-founds-with-curl/39367/8 "2020-08-24T09:20:22Z")
I probably should have asked: which shell. In Bash on macOS, I don’t need quotes around the URL. Good to know that on some systems it’s needed, as, I guess, apparently the shell tries to find a matching file otherwise.