# Httpoison get request with basic authorization -- "HTTP request failed: bad\_request"

**URL:** <https://forum.elixirforum.com/t/httpoison-get-request-with-basic-authorization-http-request-failed-bad-request/57470>\
**Category:** Questions\
**Tags:** http\
**Created:** [August 6, 2023, 6:39pm UTC](https://forum.elixirforum.com/t/httpoison-get-request-with-basic-authorization-http-request-failed-bad-request/57470 "2023-08-06T18:39:25Z")\
**Posts on this page:** 1\
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**Author:** ![al2o3cr](https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/al2o3cr/32/3457_2.png) [@al2o3cr](https://forum.elixirforum.com/u/al2o3cr)\
**Post date:** [August 6, 2023, 8:08pm UTC](https://forum.elixirforum.com/t/httpoison-get-request-with-basic-authorization-http-request-failed-bad-request/57470/3 "2023-08-06T20:08:30Z")

</div>

That error comes from the Hackney machinery responsible for parsing the response; the fact that it’s going down the `{:error, HTTPoison.Error}` path means it’s failing to parse the opening line of the response - things like missing headers etc would generally result in an `HTTPoison.Response` with a `status_code` of 400.

The code in Hackney suggests some possiblities:

[https://github.com/benoitc/hackney/blob/d6d075f9edcbb7e0b5c9418dba5dd34f2c95bc21/src/hackney\_http.erl#L194-L227](https://github.com/benoitc/hackney/blob/d6d075f9edcbb7e0b5c9418dba5dd34f2c95bc21/src/hackney_http.erl#L194-L227)

- the server is sending too many blank lines before the `HTTP/1.1 200 OK`
- the server is sending malformed line-endings which cause the `binary:split` on line 196 to not find two parts
- the server is sending some other kind of mis-formatted value in the opening line (omitting the reason? Spelling `HTTP` wrong? Hard to tell)

The most reliable way to troubleshoot this is to capture the EXACT bytes the server is replying with, for instance with `curl --trace`:

```elixir
Matts-MacBook-Pro-2:phoenix mattjones$ curl --trace - http://example.com
== Info: Rebuilt URL to: http://example.com/
== Info: Trying 93.184.216.34...
== Info: TCP_NODELAY set
== Info: Connected to example.com (93.184.216.34) port 80 (#0)
=> Send header, 75 bytes (0x4b)
0000: 47 45 54 20 2f 20 48 54 54 50 2f 31 2e 31 0d 0a GET / HTTP/1.1..
0010: 48 6f 73 74 3a 20 65 78 61 6d 70 6c 65 2e 63 6f Host: example.co
0020: 6d 0d 0a 55 73 65 72 2d 41 67 65 6e 74 3a 20 63 m..User-Agent: c
0030: 75 72 6c 2f 37 2e 35 34 2e 30 0d 0a 41 63 63 65 url/7.54.0..Acce
0040: 70 74 3a 20 2a 2f 2a 0d 0a 0d 0a pt: */*....
<= Recv header, 17 bytes (0x11)
0000: 48 54 54 50 2f 31 2e 31 20 32 30 30 20 4f 4b 0d HTTP/1.1 200 OK.
0010: 0a .
<= Recv header, 13 bytes (0xd)
0000: 41 67 65 3a 20 35 30 31 35 34 32 0d 0a Age: 501542..
<= Recv header, 31 bytes (0x1f)
0000: 43 61 63 68 65 2d 43 6f 6e 74 72 6f 6c 3a 20 6d Cache-Control: m
0010: 61 78 2d 61 67 65 3d 36 30 34 38 30 30 0d 0a ax-age=604800..
<= Recv header, 40 bytes (0x28)
0000: 43 6f 6e 74 65 6e 74 2d 54 79 70 65 3a 20 74 65 Content-Type: te
0010: 78 74 2f 68 74 6d 6c 3b 20 63 68 61 72 73 65 74 xt/html; charset
0020: 3d 55 54 46 2d 38 0d 0a =UTF-8..
<= Recv header, 37 bytes (0x25)
0000: 44 61 74 65 3a 20 53 75 6e 2c 20 30 36 20 41 75 Date: Sun, 06 Au
0010: 67 20 32 30 32 33 20 32 30 3a 30 36 3a 35 35 20 g 2023 20:06:55 
0020: 47 4d 54 0d 0a GMT..
<= Recv header, 26 bytes (0x1a)
...etcetcetc...

```

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