Awesome Faraday

A curated list of awesome middleware and adapters for Faraday. If you want your adapter or middleware to feature in this list, please open a discussion or a PR.

Adapters

Faraday allows you to change the adapter, the element in the stack responsible for performing the HTTP request, with ease, by the combination of a standardised API to provide configuration and request details, and a powerful set of middleware. However, each adapter can also offer unique features, or lack the support for others. The following table show the available adapters and which features they support.

Adapter	Bundled with Faraday	Reason Phrase parsing	Compression (Gzip, Deflate)	Response Streaming	Parallel Requests	GET, HEAD, DELETE, TRACE Request Body	HEAD Response Body	TRACE Method	Local Socket Binding
Async::HTTP::Faraday	✖️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️
EM::HTTP	v1 only	✔️	✖️	✖️	✔️	✔️	✖️	✔️	✔️
EM::Synchrony	v1 only	✔️	✖️	✖️	✔️	✔️	✖️	✔️	✔️
Excon	v1 only	✔️	✖️	✖️	✖️	✔️	✔️	✔️	✖️
HttpClient	v1 only	✔️	✔️	✖️	✖️	✔️	✔️	✔️	✔️
Net::HTTP	✔️	✔️	✔️	✔️	✖️	✔️	✔️	✔️	✖️
Net::HTTP::Persistent	v1 only	✔️	✔️	✔️	✖️	✔️	✔️	✔️	✖️
Patron	v1 only	✔️	✖️	✖️	✖️	✖️	✔️	✖️	✖️
Typhoeus	v1 only	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✖️
HTTP.rb	✖️	✔️	✖️	✔️	✖️	✔️	✖️	✔️	✔️
httpx	✖️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️

Middleware

Under the hood, Faraday uses a Rack-inspired middleware stack for making requests. Much of Faraday’s power is unlocked with custom middleware. Some middleware is included with Faraday, and others are in external gems. Learn more about Middleware.

In addition to this curated list of middleware, we would like to specifically call your attention to middleware that is helpful for general HTTP use:

• encoding - required for handling UTF-8 responses
• follow_redirects - follow HTTP 30X redirects
• json_request and json_response - encode/decode JSON requests and responses
• parse_dates - parse ISO 8601 dates from response body
• retry - retry intermittent HTTP failures
• url_encoded - encode request body as a url-encoded form upload

Awesome Community Middleware

• cookie_jar - support for HTTP cookies
• detailed_logger - robust logging for requests & responses
• encoding - required for handling UTF-8 responses
• http_cache - standards compliant cache that works with ActiveSupport::Cache
• gzip - decompress responses (needed for some non-default adapters)
• jwt - JWT request encode & response decode with optional signing & verifications
• mashify - parse responses into a Hashie::Mash (for Faraday 2)

Included with faraday itself

• authorization - middleware for the Authorization HTTP header
• basic_authentication - HTTP basic auth
• instrumentation - instrument requests using ActiveSupport::Notifications or similar
• logger - log request and response
• raise_error - raises exception on 4xx or 5xx
• token_authentication - HTTP token authentication
• url_encoded - encode request body as a url-encoded form upload
• json - encode/decode JSON requests and responses

Bundled into their own gems

• oauth1 - adds an oauth1 access token to each request, via param or header
• multipart - encode request body as a multipart form
• retry - retry intermittent HTTP failures
• rashify - parse responses into a Hashie::Mash::Rash
• follow_redirects - follow HTTP 30X redirects
• encode_xml - encode XML requests (responses decoding is included in faraday_middleware gem)
• decode_xml - decode XML responses
• XML Middleware - encodes requests as XML, parses response body into a hash of key/value pairs, and provides access to parser/encoder primitives for any custom handling.

faraday_middleware gem

ATTENTION: faraday_middleware have been deprecated and won't be updated to work on Faraday 2.0. All the middleware below will need to be moved into their own gems.

• caching - simple cache that works with ActiveSupport::Cache
• chunked - support for HTTP Transfer-Encoding
• dates - parse ISO 8601 dates from response body
• follow_redirects - follow HTTP 30X redirects
• instrumentation - instruments requests using ActiveSupport::Notifications or similar
• json_fix - fix responses that insist on serving JSON with wrong mime types
• marshal - parse responses as marshalled ruby objects
• method_override - support for X-Http-Method-Override
• oauth/oauth2 - adds an oauth access token to each request
• rashify - parse responses into a Hashie::Rash
• xml - parse responses as XML
• yaml - parse responses as YAML

Has been moved into community gems (see list above):

• mashify

Tooling

• faraday-logging-color_formatter - A color formatter for the default Faraday logger