jsonecho

XML to Rust

Paste an XML document and get Rust types that match its structure.

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How to use XML to Rust

  1. Paste a representative XML sample, ideally one with all the optional fields filled in.
  2. Set the name of the root type, and decide whether you want helper code as well or types only.
  3. Copy the generated Rust code into your project.

About XML to Rust

Writing model classes by hand for a big XML payload is dull, and it is where typos creep in. Paste a sample here and the generator works out the structure: which fields exist, which are objects, which are arrays and what type each value has. The output is structs deriving Serialize and Deserialize from the serde crate.

XML is first converted to JSON the same way as in our XML to JSON tool: attributes get an @_ prefix and text content next to attributes is called #text. The Rust types are generated from that result. Field names are converted to snake_case with a serde rename attribute when the original differs.

Using the generated code

Add serde and serde_json to Cargo.toml and call serde_json::from_str::<Root>(&json).

Optional fields are Option<T>. Null and missing keys both become None.

Frequently asked questions

What does the generated Rust code depend on?

The output is structs deriving Serialize and Deserialize from the serde crate.

How do I parse XML with the result?

Convert the XML to JSON first (our XML to JSON tool does this the same way), then add serde and serde_json to Cargo.toml and call serde_json::from_str::<Root>(&json).

How are optional and missing fields handled?

Optional fields are Option<T>. Null and missing keys both become None.

Does the generator look at more than one record?

It only knows what is in your sample. If a field is missing from your example, it will not appear in the types, and if a value is null in your example, its type is unknown. Paste an example in which as many fields as possible are filled in, or paste an array with several different records.

Is my XML sent to a server?

No. The generator is downloaded to your browser the first time you use it, about 1 MB, and everything runs locally.

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