juspay/hyperswitch · error

Failed to parse TOML in '{}': {}

Error message

Failed to parse TOML in '{}': {}

What it means

Error "Failed to parse TOML in '{}': {}" thrown in juspay/hyperswitch.

Source

Thrown at crates/payment_link/build.rs:37

    // Use the payment_link specific SDK URL configuration
    let sdk_config_path = "config/sdk_urls.toml";

    // Tell cargo to rerun if config file changes
    println!("cargo:rerun-if-changed={}", sdk_config_path);
    println!("cargo:rerun-if-env-changed=ENVIRONMENT");

    // Read and parse SDK URLs TOML file
    #[allow(clippy::panic)]
    let config_content = fs::read_to_string(sdk_config_path).unwrap_or_else(|e| {
        panic!(
            "Failed to read SDK config file '{}': {}",
            sdk_config_path, e
        );
    });

    #[allow(clippy::panic)]
    let config: HashMap<Env, EnvConfig> = toml::from_str(&config_content).unwrap_or_else(|e| {
        panic!("Failed to parse TOML in '{}': {}", sdk_config_path, e);
    });

    // Extract SDK URL for the current environment
    #[allow(clippy::panic)]
    let sdk_url = config
        .get(&environment)
        .map(|c| c.sdk_url.as_str())
        .unwrap_or_else(|| {
            panic!(
                "Missing [{}] section in config file: {}",
                environment, sdk_config_path
            )
        });

    // Set environment variable for compile-time access
    println!("cargo:rustc-env=SDK_URL={}", sdk_url);
}

View on GitHub (pinned to 705a321950)

Solutions

1. Fix the TOML syntax error in the indicated config file (validate with a TOML parser/linter)

When it happens

Trigger: Thrown at crates/payment_link/build.rs:37 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

AI-assisted analysis of juspay/hyperswitch@705a321950 (2026-08-19). Data as JSON: /api/errors/33d828ea3e2bfa20. Report an issue: GitHub.