@openmerge/sdk

Typed authoring SDK for OpenMerge model, mapping, overlay, expression, and sandboxed-function IR.

JavaScript to immutable WASM

Install Javy v9 and compile a synchronous pure transform:

import { compileJavaScriptFunction } from "@openmerge/sdk"

const registration = compileJavaScriptFunction({
  workspaceId: "ws_123",
  id: "normalize/trim",
  version: 1,
  signature: { in: ["string"], out: "string" },
  provenance: { author: "human:[email protected]", reason: "CRM normalization" },
  transform: (value) => String(value).trim(),
})

await fetch(`${api}/functions?wsid=ws_123`, {
  method: "POST",
  headers: { Authorization: `Bearer ${key}`, "Content-Type": "application/json" },
  body: JSON.stringify({ document: registration.document, bundle_base64: registration.bundleBase64 }),
})

Compilation runs without a shell. The SDK rejects oversized or malformed WASM and any imports outside OpenMerge's minimal stdin/stdout WASI capability set. packageWasmFunction supports other compilers while preserving the same immutable registry contract.