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Introduction

soap-server is a WSDL-driven SOAP 1.1/1.2 server library for Rust, built on top of axum. You provide a WSDL file, register async handler closures for each operation, and get a SOAP 1.1/1.2 endpoint with no boilerplate envelope handling. It is a transport + dispatch layer — not a code generator or full XSD validator; see Capabilities & Limitations for the precise scope.

Features

  • SOAP 1.1 and 1.2 — auto-detects version from the Content-Type header and envelope namespace; responds in the same version as the incoming request.
  • WSDL-driven dispatch — operations are discovered from the WSDL at server build time. Registering a handler for an operation name that does not exist in the WSDL is a build-time error (.build() returns Err).
  • WS-Security (UsernameToken) — supports PasswordDigest and PasswordText authentication with nonce replay detection and timestamp freshness checks.
  • XSD structural validation — required elements in the request body are validated against the WSDL/XSD schema before the handler is called.

License

soap-server is dual-licensed under MIT OR Apache-2.0. You may choose either license.