HTTPoison
The HTTP client for Elixir.
The HTTPoison
module can be used to issue HTTP requests and parse HTTP responses to arbitrary urls.
iex> HTTPoison.get!("https://api.github.com")
%HTTPoison.Response{status_code: 200,
headers: [{"content-type", "application/json"}],
body: "{...}"}
It’s very common to use HTTPoison in order to wrap APIs, which is when the
HTTPoison.Base
module shines. Visit the documentation for HTTPoison.Base
for more information.
Under the hood, the HTTPoison
module just uses HTTPoison.Base
(as
described in the documentation for HTTPoison.Base
) without overriding any
default function.
See request/5
for more details on how to issue HTTP requests
Summary
delete!(url, headers \\ [], options \\ []) | Issues a DELETE request to the given url, raising an exception in case of failure |
delete(url, headers \\ [], options \\ []) | Issues a DELETE request to the given url |
get!(url, headers \\ [], options \\ []) | Issues a GET request to the given url, raising an exception in case of failure |
get(url, headers \\ [], options \\ []) | Issues a GET request to the given url |
head!(url, headers \\ [], options \\ []) | Issues a HEAD request to the given url, raising an exception in case of failure |
head(url, headers \\ [], options \\ []) | Issues a HEAD request to the given url |
options!(url, headers \\ [], options \\ []) | Issues a OPTIONS request to the given url, raising an exception in case of failure |
options(url, headers \\ [], options \\ []) | Issues an OPTIONS request to the given url |
patch!(url, body, headers \\ [], options \\ []) | Issues a PATCH request to the given url, raising an exception in case of failure |
patch(url, body, headers \\ [], options \\ []) | Issues a PATCH request to the given url |
post!(url, body, headers \\ [], options \\ []) | Issues a POST request to the given url, raising an exception in case of failure |
post(url, body, headers \\ [], options \\ []) | Issues a POST request to the given url |
put!(url, body, headers \\ [], options \\ []) | Issues a PUT request to the given url, raising an exception in case of failure |
put(url, body, headers \\ [], options \\ []) | Issues a PUT request to the given url |
request!(method, url, body \\ "", headers \\ [], options \\ []) | Issues an HTTP request with the given method to the given url, raising an exception in case of failure |
request(method, url, body \\ "", headers \\ [], options \\ []) | Issues an HTTP request with the given method to the given url |
start() | Starts HTTPoison and its dependencies |
Types
headers :: [{binary, binary}] | %{binary => binary}
body :: binary | {:form, [{atom, any}]} | {:file, binary}
Functions
Specs:
- delete(binary, headers, Keyword.t) :: {:ok, HTTPoison.Response.t | HTTPoison.AsyncResponse.t} | {:error, HTTPoison.Error.t}
Issues a DELETE request to the given url.
Returns {:ok, response}
if the request is successful, {:error, reason}
otherwise.
See request/5
for more detailed information.
Specs:
- delete!(binary, headers, Keyword.t) :: HTTPoison.Response.t | HTTPoison.AsyncResponse.t
Issues a DELETE request to the given url, raising an exception in case of failure.
If the request does not fail, the response is returned.
See request!/5
for more detailed information.
Specs:
- get(binary, headers, Keyword.t) :: {:ok, HTTPoison.Response.t | HTTPoison.AsyncResponse.t} | {:error, HTTPoison.Error.t}
Issues a GET request to the given url.
Returns {:ok, response}
if the request is successful, {:error, reason}
otherwise.
See request/5
for more detailed information.
Specs:
- get!(binary, headers, Keyword.t) :: HTTPoison.Response.t | HTTPoison.AsyncResponse.t
Issues a GET request to the given url, raising an exception in case of failure.
If the request does not fail, the response is returned.
See request!/5
for more detailed information.
Specs:
- head(binary, headers, Keyword.t) :: {:ok, HTTPoison.Response.t | HTTPoison.AsyncResponse.t} | {:error, HTTPoison.Error.t}
Issues a HEAD request to the given url.
Returns {:ok, response}
if the request is successful, {:error, reason}
otherwise.
See request/5
for more detailed information.
Specs:
- head!(binary, headers, Keyword.t) :: HTTPoison.Response.t | HTTPoison.AsyncResponse.t
Issues a HEAD request to the given url, raising an exception in case of failure.
If the request does not fail, the response is returned.
See request!/5
for more detailed information.
Specs:
- options(binary, headers, Keyword.t) :: {:ok, HTTPoison.Response.t | HTTPoison.AsyncResponse.t} | {:error, HTTPoison.Error.t}
Issues an OPTIONS request to the given url.
Returns {:ok, response}
if the request is successful, {:error, reason}
otherwise.
See request/5
for more detailed information.
Specs:
- options!(binary, headers, Keyword.t) :: HTTPoison.Response.t | HTTPoison.AsyncResponse.t
Issues a OPTIONS request to the given url, raising an exception in case of failure.
If the request does not fail, the response is returned.
See request!/5
for more detailed information.
Specs:
- patch(binary, body, headers, Keyword.t) :: {:ok, HTTPoison.Response.t | HTTPoison.AsyncResponse.t} | {:error, HTTPoison.Error.t}
Issues a PATCH request to the given url.
Returns {:ok, response}
if the request is successful, {:error, reason}
otherwise.
See request/5
for more detailed information.
Specs:
- patch!(binary, body, headers, Keyword.t) :: HTTPoison.Response.t | HTTPoison.AsyncResponse.t
Issues a PATCH request to the given url, raising an exception in case of failure.
If the request does not fail, the response is returned.
See request!/5
for more detailed information.
Specs:
- post(binary, body, headers, Keyword.t) :: {:ok, HTTPoison.Response.t | HTTPoison.AsyncResponse.t} | {:error, HTTPoison.Error.t}
Issues a POST request to the given url.
Returns {:ok, response}
if the request is successful, {:error, reason}
otherwise.
See request/5
for more detailed information.
Specs:
- post!(binary, body, headers, Keyword.t) :: HTTPoison.Response.t | HTTPoison.AsyncResponse.t
Issues a POST request to the given url, raising an exception in case of failure.
If the request does not fail, the response is returned.
See request!/5
for more detailed information.
Specs:
- put(binary, body, headers, Keyword.t) :: {:ok, HTTPoison.Response.t | HTTPoison.AsyncResponse.t} | {:error, HTTPoison.Error.t}
Issues a PUT request to the given url.
Returns {:ok, response}
if the request is successful, {:error, reason}
otherwise.
See request/5
for more detailed information.
Specs:
- put!(binary, body, headers, Keyword.t) :: HTTPoison.Response.t | HTTPoison.AsyncResponse.t
Issues a PUT request to the given url, raising an exception in case of failure.
If the request does not fail, the response is returned.
See request!/5
for more detailed information.
Specs:
- request(atom, binary, body, headers, Keyword.t) :: {:ok, HTTPoison.Response.t | HTTPoison.AsyncResponse.t} | {:error, HTTPoison.Error.t}
Issues an HTTP request with the given method to the given url.
This function is usually used indirectly by get/3
, post/4
, put/4
, etc
Args:
method
- HTTP method as an atom (:get
,:head
,:post
,:put
,:delete
, etc.)url
- target url as a binary string or char listbody
- request body. See more belowheaders
- HTTP headers as an orddict (e.g.,[{"Accept", "application/json"}]
)options
- Keyword list of options
Body:
- binary, char list or an iolist
{:form, [{K, V}, ...]}
- send a form url encoded{:file, "/path/to/file"}
- send a file
Options:
:timeout
- timeout to establish a connection, in milliseconds. Default is 8000:recv_timeout
- timeout used when receiving a connection. Default is 5000:stream_to
- a PID to stream the response to:proxy
- a proxy to be used for the request; it can be a regular url or a{Host, Proxy}
tuple:proxy_auth
- proxy authentication{User, Password}
tuple:ssl
- SSL options supported by thessl
erlang module:follow_redirect
- a boolean that causes redirects to be followed:max_redirect
- an integer denoting the maximum number of redirects to follow:params
- an enumerable consisting of two-item tuples that will be appended to the url as query string parameters
Timeouts can be an integer or :infinity
This function returns {:ok, response}
or {:ok, async_response}
if the
request is successful, {:error, reason}
otherwise.
Examples
request(:post, "https://my.website.com", "{\"foo\": 3}", [{"Accept", "application/json"}])
Specs:
- request!(atom, binary, body, headers, Keyword.t) :: HTTPoison.Response.t
Issues an HTTP request with the given method to the given url, raising an exception in case of failure.
request!/5
works exactly like request/5
but it returns just the
response in case of a successful request, raising an exception in case the
request fails.
Starts HTTPoison and its dependencies.