HTTPoison

v1.7.0

HTTPoison

HTTPoison v1.7.0 HTTPoison View Source

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

Link to this section Summary

Types

body()
headers()
method()
options()
params()
request()
url()

Functions

delete(url, headers \\ [], options \\ [])

Issues a DELETE request to the given url.

delete!(url, headers \\ [], options \\ [])

Issues a DELETE request to the given url, raising an exception in case of failure.

get(url, headers \\ [], options \\ [])

Issues a GET request to the given url.

get!(url, headers \\ [], options \\ [])

Issues a GET request to the given url, raising an exception in case of failure.

head(url, headers \\ [], options \\ [])

Issues a HEAD request to the given url.

head!(url, headers \\ [], options \\ [])

Issues a HEAD request to the given url, raising an exception in case of failure.

options(url, headers \\ [], options \\ [])

Issues an OPTIONS request to the given url.

options!(url, headers \\ [], options \\ [])

Issues a OPTIONS 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.

patch!(url, body, headers \\ [], options \\ [])

Issues a PATCH 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.

post!(url, body, headers \\ [], options \\ [])

Issues a POST request to the given url, raising an exception in case of failure.

process_headers(headers) deprecated

Callback implementation for HTTPoison.Base.process_headers/1.

process_request_body(body)

Callback implementation for HTTPoison.Base.process_request_body/1.

process_request_headers(headers)

Callback implementation for HTTPoison.Base.process_request_headers/1.

process_request_options(options)

Callback implementation for HTTPoison.Base.process_request_options/1.

process_request_params(params)

Callback implementation for HTTPoison.Base.process_request_params/1.

process_request_url(url)

Callback implementation for HTTPoison.Base.process_request_url/1.

process_response(response)

Callback implementation for HTTPoison.Base.process_response/1.

process_response_body(body)

Callback implementation for HTTPoison.Base.process_response_body/1.

process_response_chunk(chunk)

Callback implementation for HTTPoison.Base.process_response_chunk/1.

process_response_headers(headers)

Callback implementation for HTTPoison.Base.process_response_headers/1.

process_response_status_code(status_code)

Callback implementation for HTTPoison.Base.process_response_status_code/1.

process_status_code(status_code) deprecated

Callback implementation for HTTPoison.Base.process_status_code/1.

process_url(url) deprecated

Callback implementation for HTTPoison.Base.process_url/1.

put(url, body \\ "", headers \\ [], options \\ [])

Issues a PUT 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.

request(request)

Issues an HTTP request using a Request struct.

request(method, url, body \\ "", headers \\ [], options \\ [])

Issues an HTTP request with the given method 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.

start()

Starts HTTPoison and its dependencies.

stream_next(resp)

Requests the next message to be streamed for a given HTTPoison.AsyncResponse.

Link to this section Types

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body() View Source 
body() :: HTTPoison.Base.body()

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headers() View Source 
headers() :: HTTPoison.Base.headers()

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method() View Source 
method() :: HTTPoison.Base.method()

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options() View Source 
options() :: HTTPoison.Base.options()

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params() View Source 
params() :: HTTPoison.Base.params()

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request() View Source 
request() :: HTTPoison.Base.request()

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url() View Source 
url() :: HTTPoison.Base.url()

Link to this section Functions

Link to this function

delete(url, headers \\ [], options \\ []) View Source 
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.

Link to this function

delete!(url, headers \\ [], options \\ []) View Source 
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.

Link to this function

get(url, headers \\ [], options \\ []) View Source 
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.

Link to this function

get!(url, headers \\ [], options \\ []) View Source 
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.

Link to this function

head(url, headers \\ [], options \\ []) View Source 
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.

Link to this function

head!(url, headers \\ [], options \\ []) View Source 
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.

Link to this function

options(url, headers \\ [], options \\ []) View Source 
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.

Link to this function

options!(url, headers \\ [], options \\ []) View Source 
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.

Link to this function

patch(url, body, headers \\ [], options \\ []) View Source 
patch(binary(), any(), 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.

Link to this function

patch!(url, body, headers \\ [], options \\ []) View Source 
patch!(binary(), any(), 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.

Link to this function

post(url, body, headers \\ [], options \\ []) View Source 
post(binary(), any(), 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.

Link to this function

post!(url, body, headers \\ [], options \\ []) View Source 
post!(binary(), any(), 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.

Link to this function

process_headers(headers) View Source 
process_headers(list()) :: any()

This function is deprecated. Use process_response_headers/1 instead.

Callback implementation for HTTPoison.Base.process_headers/1.

Link to this function

process_request_body(body) View Source 
process_request_body(body()) :: body()

Callback implementation for HTTPoison.Base.process_request_body/1.

Link to this function

process_request_headers(headers) View Source 
process_request_headers(headers()) :: headers()

Callback implementation for HTTPoison.Base.process_request_headers/1.

Link to this function

process_request_options(options) View Source 
process_request_options(options()) :: options()

Callback implementation for HTTPoison.Base.process_request_options/1.

Link to this function

process_request_params(params) View Source 
process_request_params(params()) :: params()

Callback implementation for HTTPoison.Base.process_request_params/1.

Link to this function

process_request_url(url) View Source 
process_request_url(url()) :: url()

Callback implementation for HTTPoison.Base.process_request_url/1.

Link to this function

process_response(response) View Source 
process_response(HTTPoison.Base.response()) :: any()

Callback implementation for HTTPoison.Base.process_response/1.

Link to this function

process_response_body(body) View Source 
process_response_body(binary()) :: any()

Callback implementation for HTTPoison.Base.process_response_body/1.

Link to this function

process_response_chunk(chunk) View Source 
process_response_chunk(binary()) :: any()

Callback implementation for HTTPoison.Base.process_response_chunk/1.

Link to this function

process_response_headers(headers) View Source 
process_response_headers(list()) :: any()

Callback implementation for HTTPoison.Base.process_response_headers/1.

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process_response_status_code(status_code) View Source 
process_response_status_code(integer()) :: any()

Callback implementation for HTTPoison.Base.process_response_status_code/1.

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process_status_code(status_code) View Source 
process_status_code(integer()) :: any()

This function is deprecated. Use process_response_status_code/1 instead.

Callback implementation for HTTPoison.Base.process_status_code/1.

Link to this function

process_url(url) View Source 
process_url(url()) :: url()

This function is deprecated. Use process_request_url/1 instead.

Callback implementation for HTTPoison.Base.process_url/1.

Link to this function

put(url, body \\ "", headers \\ [], options \\ []) View Source 
put(binary(), any(), 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.

Link to this function

put!(url, body \\ "", headers \\ [], options \\ []) View Source 
put!(binary(), any(), 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.

Link to this function

request(request) View Source 
request(HTTPoison.Request.t()) ::
  {:ok, HTTPoison.Response.t() | HTTPoison.AsyncResponse.t()}
  | {:error, HTTPoison.Error.t()}

Issues an HTTP request using a Request struct.

This function returns {:ok, response} or {:ok, async_response} if the request is successful, {:error, reason} otherwise.

Examples 

request = %HTTPoison.Request{
  method: :post,
  url: "https://my.website.com",
  body: "{\"foo\": 3}",
  headers: [{"Accept", "application/json"}]
}

request(request)
Link to this function

request(method, url, body \\ "", headers \\ [], options \\ []) View Source 
request(method(), binary(), any(), 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 list
  • body - request body. See more below
  • headers - HTTP headers as an orddict (e.g., [{"Accept", "application/json"}])
  • options - Keyword list of options

Body: see type HTTPoison.Request

Options: see type HTTPoison.Request

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"}])
Link to this function

request!(method, url, body \\ "", headers \\ [], options \\ []) View Source 
request!(method(), binary(), any(), headers(), Keyword.t()) ::
  HTTPoison.Response.t() | HTTPoison.AsyncResponse.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.

Link to this function

start() View Source

Starts HTTPoison and its dependencies.

Link to this function

stream_next(resp) View Source 
stream_next(HTTPoison.AsyncResponse.t()) ::
  {:ok, HTTPoison.AsyncResponse.t()} | {:error, HTTPoison.Error.t()}

Requests the next message to be streamed for a given HTTPoison.AsyncResponse.

See request!/5 for more detailed information.