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UriPattern

Source: R/RequestPattern.R
UriPattern.Rd

uri matcher

Public fields

pattern

(character) pattern holder

regex

a logical

query_params

a list, or NULL if empty

Methods

Public methods

Method new()

Create a new UriPattern object

Usage

UriPattern$new(pattern = NULL, regex_pattern = NULL)

Arguments

pattern

(character) a uri, as a character string. if scheme is missing, it is added (we assume http)

regex_pattern

(character) a uri as a regex character string, see base::regex. if scheme is missing, it is added (we assume http)

Returns

A new UriPattern object

Method matches()

Match a uri against a pattern

Usage

UriPattern$matches(uri)

Arguments

uri

(character) a uri

Returns

a boolean

Method pattern_matches()

Match a URI

Usage

UriPattern$pattern_matches(uri)

Arguments

uri

(character) a uri

Returns

a boolean

Method query_params_matches()

Match query parameters of a URI

Usage

UriPattern$query_params_matches(uri)

Arguments

uri

(character) a uri

Returns

a boolean

Method extract_query()

Extract query parameters as a named list

Usage

UriPattern$extract_query(uri)

Arguments

uri

(character) a uri

Returns

named list, or NULL if no query parameters

Method add_query_params()

Add query parameters to the URI

Usage

UriPattern$add_query_params(query_params)

Arguments

query_params

(list|character) list or character

Returns

nothing returned, updates uri pattern

Method to_s()

Print pattern for easy human consumption

Usage

UriPattern$to_s()

Returns

a string

Method clone()

The objects of this class are cloneable with this method.

Usage

UriPattern$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

# trailing slash
(z <- UriPattern$new(pattern = "http://foobar.com"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: http://foobar.com
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: FALSE
#>     to_s: function () 
z$matches("http://foobar.com") # TRUE
#> [1] TRUE
z$matches("http://foobar.com/") # TRUE
#> [1] TRUE

# without scheme
## matches http by default: does not match https by default
(z <- UriPattern$new(pattern = "foobar.com"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: http://foobar.com
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: FALSE
#>     to_s: function () 
z$matches("http://foobar.com") # TRUE
#> [1] TRUE
z$matches("http://foobar.com/") # TRUE
#> [1] TRUE
z$matches("https://foobar.com") # FALSE
#> [1] FALSE
z$matches("https://foobar.com/") # FALSE
#> [1] FALSE
## to match https, you'll have to give the complete url
(z <- UriPattern$new(pattern = "https://foobar.com"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: https://foobar.com
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: FALSE
#>     to_s: function () 
z$matches("https://foobar.com/") # TRUE
#> [1] TRUE
z$matches("http://foobar.com/") # FALSE
#> [1] FALSE

# default ports
(z <- UriPattern$new(pattern = "http://foobar.com"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: http://foobar.com
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: FALSE
#>     to_s: function () 
z$matches("http://foobar.com:80") # TRUE
#> [1] TRUE
z$matches("http://foobar.com:80/") # TRUE
#> [1] TRUE
z$matches("http://foobar.com:443") # TRUE
#> [1] TRUE
z$matches("http://foobar.com:443/") # TRUE
#> [1] TRUE

# user info - FIXME, not sure we support this yet
(z <- UriPattern$new(pattern = "http://foobar.com"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: http://foobar.com
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: FALSE
#>     to_s: function () 
z$matches("http://user:[email protected]")
#> [1] FALSE

# regex
(z <- UriPattern$new(regex_pattern = ".+ample\\.."))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: https?://.+ample\..
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: TRUE
#>     to_s: function () 
z$matches("http://sample.org") # TRUE
#> [1] TRUE
z$matches("http://example.com") # TRUE
#> [1] TRUE
z$matches("http://tramples.net") # FALSE
#> [1] FALSE

# add query parameters
(z <- UriPattern$new(pattern = "http://foobar.com"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: http://foobar.com
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: FALSE
#>     to_s: function () 
z$add_query_params(list(pizza = "cheese", cheese = "cheddar"))
z
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: http://foobar.com?pizza=cheese&cheese=cheddar
#>     pattern_matches: function (uri) 
#>     query_params: list
#>     query_params_matches: function (uri) 
#>     regex: FALSE
#>     to_s: function () 
z$pattern
#> [1] "http://foobar.com?pizza=cheese&cheese=cheddar"
z$matches("http://foobar.com?pizza=cheese&cheese=cheddar") # TRUE
#> [1] TRUE
z$matches("http://foobar.com?pizza=cheese&cheese=swiss") # FALSE
#> [1] FALSE

# query parameters in the uri
(z <- UriPattern$new(pattern = "https://httpbin.org/get?stuff=things"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: https://httpbin.org/get?stuff=things
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: FALSE
#>     to_s: function () 
z$add_query_params() # have to run this method to gather query params
z$matches("https://httpbin.org/get?stuff=things") # TRUE
#> [1] TRUE
z$matches("https://httpbin.org/get?stuff2=things") # FALSE
#> [1] FALSE

# regex add query parameters
(z <- UriPattern$new(regex_pattern = "https://foobar.com/.+/order"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: https://foobar.com/.+/order
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: TRUE
#>     to_s: function () 
z$add_query_params(list(pizza = "cheese"))
#> NULL
z
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: https://foobar.com/.+/order
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: TRUE
#>     to_s: function () 
z$pattern
#> [1] "https://foobar.com/.+/order"
z$matches("https://foobar.com/pizzas/order?pizza=cheese") # TRUE
#> [1] TRUE
z$matches("https://foobar.com/pizzas?pizza=cheese") # FALSE
#> [1] FALSE

# query parameters in the regex uri
(z <- UriPattern$new(regex_pattern = "https://x.com/.+/order\\?fruit=apple"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: https://x.com/.+/order\?fruit=apple
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: TRUE
#>     to_s: function () 
z$add_query_params() # have to run this method to gather query params
#> NULL
z$matches("https://x.com/a/order?fruit=apple") # TRUE
#> [1] TRUE
z$matches("https://x.com/a?fruit=apple") # FALSE
#> [1] FALSE

# any pattern
(z <- UriPattern$new(regex_pattern = "stuff\\.com.+"))
#> <UriPattern>
#>   Public:
#>     add_query_params: function (query_params) 
#>     clone: function (deep = FALSE) 
#>     extract_query: function (uri) 
#>     initialize: function (pattern = NULL, regex_pattern = NULL) 
#>     matches: function (uri) 
#>     pattern: https?://stuff\.com.+
#>     pattern_matches: function (uri) 
#>     query_params: NULL
#>     query_params_matches: function (uri) 
#>     regex: TRUE
#>     to_s: function () 
z$regex
#> [1] TRUE
z$pattern
#> [1] "https?://stuff\\.com.+"
z$matches("http://stuff.com") # FALSE
#> [1] FALSE
z$matches("https://stuff.com/stff") # TRUE
#> [1] TRUE
z$matches("https://stuff.com/apple?bears=brown&bats=grey") # TRUE
#> [1] TRUE