Initial commit

Author: alex-ross

.tool-versions

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+ruby 3.0.6
+nodejs 16.13.0
+python 3.12.3

app.js

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+
+export function test(context) {
+  return context.getInput();
+}

app.wasm

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+package app:fortnox@0.0.1;
+
+interface host {
+  resource context {
+    get-storage: func(key: string) -> string;
+    set-storage: func(key: string, value: string);
+    get-input: func() -> result<string, string>;
+    get-connection: func() -> result<string, string>;
+  }
+}
+
+world main {
+  use host.{context};
+
+  import host;
+
+  export test: func(context: context) -> string;
+}

app.wit

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+export class Context {
+  #storage
+
+  constructor() {
+    this.#storage = {}
+  }
+
+  getStorage(key) {
+    return this.#storage[key]
+  }
+
+  setStorage(key, value) {
+    this.#storage[key] = value
+  }
+
+  getInput() {
+    return JSON.stringify({
+      "DocumentNumber": "1234567890",
+      "CostCenter": "ABC",
+    })
+  }
+
+  getConnection() {
+    return JSON.stringify({
+      "url": "https://api.com",
+      "headers": {
+        "Content-Type": "application/json",
+        "Authorization": "Bearer token-1231213131",
+      }
+    })
+  }
+}
+
+export const host = {
+  Context
+}

interface/host.mjs

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+# Build & Run
+default: build run
+
+# Build WASM
+componentize:
+  jco componentize app.js --wit app.wit --world-name main --out app.wasm
+
+# Transpile to JS
+transpile-js:
+  jco transpile app.wasm -o output --map 'app:fortnox/*=../interface/host.mjs#*'
+  # Copy js to mjs to support modular imports
+  cp output/app.js output/app.mjs
+
+# Componentize & Transpile to JS
+build: componentize transpile-js
+
+# Run runner.mjs
+run:
+  node runner.mjs

justfile

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+import type { Context } from './interfaces/app-fortnox-host.js';
+export { Context };
+import { AppFortnoxHost } from './interfaces/app-fortnox-host.js';
+import { WasiCliStderr } from './interfaces/wasi-cli-stderr.js';
+import { WasiCliStdin } from './interfaces/wasi-cli-stdin.js';
+import { WasiCliStdout } from './interfaces/wasi-cli-stdout.js';
+import { WasiCliTerminalInput } from './interfaces/wasi-cli-terminal-input.js';
+import { WasiCliTerminalOutput } from './interfaces/wasi-cli-terminal-output.js';
+import { WasiCliTerminalStderr } from './interfaces/wasi-cli-terminal-stderr.js';
+import { WasiCliTerminalStdin } from './interfaces/wasi-cli-terminal-stdin.js';
+import { WasiCliTerminalStdout } from './interfaces/wasi-cli-terminal-stdout.js';
+import { WasiClocksMonotonicClock } from './interfaces/wasi-clocks-monotonic-clock.js';
+import { WasiClocksWallClock } from './interfaces/wasi-clocks-wall-clock.js';
+import { WasiFilesystemPreopens } from './interfaces/wasi-filesystem-preopens.js';
+import { WasiFilesystemTypes } from './interfaces/wasi-filesystem-types.js';
+import { WasiIoError } from './interfaces/wasi-io-error.js';
+import { WasiIoPoll } from './interfaces/wasi-io-poll.js';
+import { WasiIoStreams } from './interfaces/wasi-io-streams.js';
+import { WasiRandomRandom } from './interfaces/wasi-random-random.js';
+export function test(context: Context): string;