Error Handling

The SDK uses the result pattern, powered by another of my in-house TypeScript library - pure. This is a purely type-based implementation, so it does not have any runtime overhead (other than having to check error).

In the SDK, the 2 types used for error handling is WxError and WxEc which is a string type-union enum that stands for “Error Code”.

Each WxError has a code: WxEc that will tell you what the error is, and optionally a message that might have more details about the error

const result = wxDoSomething();
if (result.err) {
    if (result.err.code === "Timeout") {
        // failed because of time out
    }

    // make this path diverge
    return;
}
// TypeScript can now infer the type of result.val
console.log(result.val);