Web (WASM)

The WASM SDK brings BaseID’s Rust implementation to the browser with near-native performance.

Installation

npm install @baseid/wasm

Initialization

The WASM module must be initialized before use:

import { initialize, WasmKeyPair, WasmKeyType, issueCredentialJwt } from '@baseid/wasm';

await initialize();

Key Generation

const key = new WasmKeyPair(WasmKeyType.Ed25519);
console.log('DID:', key.to_did());
console.log('Public JWK:', key.to_public_jwk());

Issue a Credential

const jwt = issueCredentialJwt(
    key.to_did(),           // issuer DID
    'did:key:holder',       // subject DID
    'DegreeCredential',     // credential type
    '{"name": "CS"}',       // claims JSON
    key                     // signing key
);
console.log('JWT:', jwt);

Verify a Credential

import { verifyCredentialJwt } from '@baseid/wasm';

const result = verifyCredentialJwt(jwt, key.to_public_jwk());
console.log('Valid:', result.valid);
console.log('Issuer:', result.issuer);

Bundle Size

The WASM binary is approximately 800 KB gzipped. Use dynamic imports to load it only when needed:

const baseid = await import('@baseid/wasm');
await baseid.initialize();

Browser Compatibility

Browser	Supported
Chrome 57+	Yes
Firefox 52+	Yes
Safari 11+	Yes
Edge 16+	Yes