datta

datta is a Rust implementation of RFC6570 - URI Template that can process URI Templates up to and including ones designated as Level 4 by the specification. It passes all of the tests in the uritemplate-test test suite.

It is a fork of rust-uritemplate.

Basic Usage

Variable setting can be chained for nice, clean code.

let uri = UriTemplate::new("/view/{object:1}/{/object,names}{?query*}")
    .set("object", "lakes")
    .set("names", &["Erie", "Superior", "Ontario"])
    .set("query", &[("size", "15"), ("lang", "en")])
    .build();

assert_eq!(uri, "/view/l/lakes/Erie,Superior,Ontario?size=15&lang=en");

It is not possible to set a variable to the value "undefined". Instead, simply delete the variable if you have already set it.

let mut t = UriTemplate::new("{hello}");
t.set("hello", "Hello World!");
assert_eq!(t.build(), "Hello%20World%21");

t.delete("hello");
assert_eq!(t.build(), "");

The delete function returns true if the variable existed and false otherwise.

Supported Types

Any type that implements IntoTemplateVar can be set as the value of a UriTemplate variable. The following implementations are provided by default for each type of variable:

• Scalar Values: String, &str
• Lists: Vec<String>, &[String], &[str]
• Associative Arrays: Vec<(String, String)>, &[(String, String)], &[(&str, &str)], &HashMap<String, String>

In addition, you can implement IntoTemplateVar for your own types. View the documentation for IntoTemplateVar for information on how that works.

Acknowledgements

This software has been developed in the scope of the H2020 project SIFIS-Home with GA n. 952652.