### Methods

## __construct()

    __construct($data_store)

### Parameters

#### $data_store

## add_signature_method()

    add_signature_method($signature_method)

### Parameters

#### $signature_method

## process an access_token request returns the access token on success

    fetch_access_token($request)

### Parameters

#### $request

## process a request_token request returns the request token on success

    fetch_request_token($request)

### Parameters

#### $request

## verify an api call, checks all the parameters

    verify_request($request)

### Parameters

#### $request

## check that the nonce is not repeated

    check_nonce($consumer, $token, $nonce, $timestamp)

### Parameters

#### $consumer

#### $token

#### $nonce

#### $timestamp

## all-in-one function to check the signature on a request should guess the signature method appropriately

    check_signature($request, $consumer, $token)

### Parameters

#### $request

#### $consumer

#### $token

## check that the timestamp is new enough

    check_timestamp($timestamp)

### Parameters

#### $timestamp

## try to find the consumer for the provided request's consumer key

    get_consumer($request)

### Parameters

#### $request

## figure out the signature with some defaults

    get_signature_method($request)

### Parameters

#### $request

## try to find the token for the provided request's token key

    get_token($request, $consumer, $token_type)

### Parameters

#### $request

#### $consumer

#### $token_type

## version 1

    get_version($request)

### Parameters

#### $request

### Properties

##

    $data_store

##

    $signature_methods

##

    $timestamp_threshold

##

    $version