Initial Commit:

Added example plugins: Counter, Console, Ping

Changes to be committed:
	modified:   .gitignore
	modified:   README.md
	new file:   compiled/counter.wasm
	new file:   compiled/ping.wasm
	new file:   console/LICENSE
	new file:   console/README.md
	new file:   console/esbuild.js
	new file:   console/package-lock.json
	new file:   console/package.json
	new file:   console/src/index.d.ts
	new file:   console/src/index.js
	new file:   counter/LICENSE
	new file:   counter/README.md
	new file:   counter/esbuild.js
	new file:   counter/package-lock.json
	new file:   counter/package.json
	new file:   counter/src/index.d.ts
	new file:   counter/src/index.js
	new file:   ping/LICENSE
	new file:   ping/README.md
	new file:   ping/esbuild.js
	new file:   ping/package-lock.json
	new file:   ping/package.json
	new file:   ping/src/index.d.ts
	new file:   ping/src/index.js
This commit is contained in:
F9Alejandro 2025-04-26 00:02:46 -04:00
parent 8c64c27122
commit 695cad9ec8
No known key found for this signature in database
25 changed files with 1798 additions and 50 deletions

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.gitignore vendored
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@ -1,50 +1,3 @@
# ---> ExtJs
.architect
bootstrap.css
bootstrap.js
bootstrap.json
bootstrap.jsonp
build/
classic.json
classic.jsonp
ext/
modern.json
modern.jsonp
resources/sass/.sass-cache/
resources/.arch-internal-preview.css
.arch-internal-preview.css
# ---> NWjs
# gitignore template for NW.js projects
# website: https://nwjs.io/
# Seen in standard and sdk versions
credits.html
locales/
libEGL.dll
libGLEv2.dll
node.dll
nw.dll
nw.exe
natives_blob.bin
nw_100_percent.pak
nw_200_percent.pak
nw_elf.dll
snapshot_blob.bin
resources.pak
# Seen only in standard
d3dcompiler_47.dll
ffmpeg.dll
icudtl.dat
# Seen only in sdk
pnacl/
chromedriver.exe
nacl_irt_x86_64.nexe
nwjc.exe
payload.exe
# ---> Node
# Logs
logs
@ -177,3 +130,5 @@ dist
.yarn/install-state.gz
.pnp.*
# ExFAT cache files
._*

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@ -1,5 +1,15 @@
# DiscGoExtism-Plugin
DiscordGo + Go + Extism - For plugin additions to DiscordGo with help from Gemini Pro 2.5
WASM compiled (Plugin)
DiscordGo + Go + Extism - For plugin additions to DiscordGo with help from Gemini Pro 2.5
WASM compiled (Plugin)
** Basic Examples **
Console
Counter
Ping
** Building **
To build these examples you can go into each directory individually and run ``npm run build`` and it should output to the directory called ``compiled``
Feel free to make issue tickets and pull requests if you have any features, fixes, or general ideas.

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compiled/counter.wasm Normal file

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console/LICENSE Normal file
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@ -0,0 +1,26 @@
Copyright 2024, The Extism Authors.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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console/README.md Normal file
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@ -0,0 +1,4 @@
# Extism JS PDK Plugin
See more documentation at https://github.com/extism/js-pdk and
[join us on Discord](https://extism.org/discord) for more help.

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console/esbuild.js Normal file
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const esbuild = require('esbuild');
esbuild
.build({
entryPoints: ['src/index.js'],
outdir: 'dist',
bundle: true,
sourcemap: true,
minify: false, // might want to use true for production build
format: 'cjs', // needs to be CJS for now
target: ['es2020'] // don't go over es2020 because quickjs doesn't support it
})

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@ -0,0 +1,422 @@
{
"name": "js-pdk-template",
"version": "1.0.0",
"lockfileVersion": 3,
"requires": true,
"packages": {
"": {
"name": "js-pdk-template",
"version": "1.0.0",
"license": "BSD-3-Clause",
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{
"name": "js-pdk-template",
"version": "1.0.0",
"description": "",
"main": "src/index.js",
"scripts": {
"build": "node esbuild.js && extism-js dist/index.js -i src/index.d.ts -o ../compiled/console.wasm"
},
"keywords": [],
"author": "",
"license": "BSD-3-Clause",
"devDependencies": {
"esbuild": "^0.19.6"
}
}

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declare module 'main' {
export function greet(): I32;
}

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/**
* An example of a plugin that uses Console extensively, CJS flavored plug-in:
*/
function greet() {
const n = 1;
tryPrint('n + 1', n + 1);
tryPrint('multiple string args', 'one', 'two', 'three');
tryPrint('single n', n);
tryPrint('three ns', n, n, n);
tryPrint('n with label', 'n', n);
tryPrint('boolean', true);
tryPrint('null', null);
tryPrint('undefined', undefined);
tryPrint('empty object', {});
tryPrint('empty array', []);
tryPrint('object with key', { key: 'value' });
console.warn('This is a warning', 123);
console.error('This is an error', 456);
console.info('This is an info', 789);
console.debug('This is a debug', 101112);
console.trace('This is a trace', 131415);
console.log('This is an object', { key: 'value' });
console.log('This is an array', [1, 2, 3]);
console.log('This is a string', 'Hello, World!');
console.log('This is a number', 123);
console.log('This is a boolean', true);
console.log('This is a null', null);
console.log('This is an undefined', undefined);
console.log('This is a function', function() {});
console.log('This is a symbol', Symbol('test'));
console.log('This is a date', new Date());
console.log('This is an error', new Error('Hi there!'));
console.log('This is a map', new Map([[1, 'one'], [2, 'two']] ));
}
function tryPrint(text, ...args) {
try {
console.log(...args);
console.log(`${text} - ✅`);
} catch (e) {
console.log(`${text} - ❌ - ${e.message}`);
}
console.log('------')
}
module.exports = { greet };

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Copyright 2024, The Extism Authors.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

4
counter/README.md Normal file
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# Extism JS PDK Plugin
See more documentation at https://github.com/extism/js-pdk and
[join us on Discord](https://extism.org/discord) for more help.

12
counter/esbuild.js Normal file
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const esbuild = require('esbuild');
esbuild
.build({
entryPoints: ['src/index.js'],
outdir: 'dist',
bundle: true,
sourcemap: true,
minify: false, // might want to use true for production build
format: 'cjs', // needs to be CJS for now
target: ['es2020'] // don't go over es2020 because quickjs doesn't support it
})

441
counter/package-lock.json generated Normal file
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counter/package.json Normal file
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{
"name": "js-pdk-template",
"version": "1.0.0",
"description": "",
"main": "src/index.js",
"scripts": {
"build": "node esbuild.js && extism-js dist/index.js -i src/index.d.ts -o ../compiled/counter.wasm"
},
"keywords": [],
"author": "",
"license": "BSD-3-Clause",
"devDependencies": {
"@extism/js-pdk": "^1.1.1",
"esbuild": "^0.19.12"
}
}

4
counter/src/index.d.ts vendored Normal file
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@ -0,0 +1,4 @@
declare module 'main' {
export function get_command_definition(): I32;
export function handle_interaction(): I32;
}

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counter/src/index.js Normal file
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// js-src/counter/index.js - Counter Command (Refactored for Readability)
// --- Constants ---
// Interaction Types (from Discord API)
const InteractionType = {
APPLICATION_COMMAND: 2,
MESSAGE_COMPONENT: 3,
MODAL_SUBMIT: 5,
};
// Component Types (from Discord API)
const ComponentType = {
ACTION_ROW: 1,
BUTTON: 2,
// Add SELECT_MENU, TEXT_INPUT etc. here if needed
};
// Button Styles (from Discord API)
const ButtonStyle = {
PRIMARY: 1, // Blue
SECONDARY: 2, // Gray
SUCCESS: 3, // Green
DANGER: 4, // Red
LINK: 5,
};
const PLUGIN_NAME = "counter"; // Used in Custom IDs
// --- Command Definition ---
const counterCommandDefinition = {
Name: PLUGIN_NAME,
Description: "Starts an interactive counter (readable version).",
Options: [],
};
function get_command_definition() {
try {
// Output the command definition JSON for the Go host
Host.outputString(JSON.stringify(counterCommandDefinition));
return 0; // Success
} catch (e) {
console.error(`[${PLUGIN_NAME}] Error stringifying command definition:`, e);
Host.outputString(`{"error": "Failed to generate command definition"}`);
return 1; // Indicate failure
}
}
// --- Helper Functions ---
/**
* Parses the counter's custom ID format "counter:action:count".
* @param {string} customId - The custom ID string.
* @returns {object|null} An object { action: string, count: number } or null if invalid.
*/
function parseCounterCustomId(customId) {
if (!customId || typeof customId !== 'string') {
console.error(`[${PLUGIN_NAME}] Invalid customId type received:`, customId);
return null;
}
const parts = customId.split(':');
// Expecting 3 parts: pluginName, action, countString
if (parts.length === 3 && parts[0] === PLUGIN_NAME) {
const action = parts[1];
const count = parseInt(parts[2], 10); // Base 10
if (!isNaN(count) && (action === 'increment' || action === 'decrement')) {
// Successfully parsed
return { action, count };
} else {
console.error(`[${PLUGIN_NAME}] Failed to parse valid action/count from CustomID parts:`, parts);
}
} else {
console.error(`[${PLUGIN_NAME}] CustomID did not match expected format 'pluginName:action:count':`, customId);
}
return null; // Indicate failure
}
/**
* Creates the Action Row containing the counter buttons.
* @param {number} currentCount - The count to embed in the buttons' custom IDs.
* @returns {Array} An array containing a single Action Row component object.
*/
function createCounterActionRow(currentCount) {
return [ // Array always starts with Action Rows
{
type: ComponentType.ACTION_ROW,
components: [ // Components within the Action Row
{
type: ComponentType.BUTTON,
style: ButtonStyle.PRIMARY,
label: "Increment (+)",
custom_id: `${PLUGIN_NAME}:increment:${currentCount}`
},
{
type: ComponentType.BUTTON,
style: ButtonStyle.DANGER,
label: "Decrement (-)",
custom_id: `${PLUGIN_NAME}:decrement:${currentCount}`
}
]
}
];
}
/**
* Creates the JSON response object to send back to the Go host.
* @param {string} content - The message content.
* @param {Array|null} components - The array of components (e.g., action rows), or null.
* @param {boolean} ephemeral - Whether the response should be ephemeral.
* @returns {object} The response object ready for stringification.
*/
function createPluginResponse(content, components = null, ephemeral = false) {
const response = { content, ephemeral };
if (components) {
response.components = components;
}
return response;
}
// --- Main Interaction Handler ---
function handle_interaction() {
console.log(`[${PLUGIN_NAME}] handle_interaction called.`);
try {
// --- 1. Get Input Data ---
const inputJson = Host.inputString();
console.log(`[${PLUGIN_NAME}] Raw Input (first 500):`, inputJson.substring(0, 500));
let interactionData;
try {
interactionData = JSON.parse(inputJson);
} catch (parseErr) {
console.error(`[${PLUGIN_NAME}] Failed to parse input JSON:`, parseErr);
const errResp = createPluginResponse("Error: Couldn't understand interaction data.", null, true);
Host.outputString(JSON.stringify(errResp));
return 1; // Indicate failure
}
console.log(`[${PLUGIN_NAME}] Parsed Interaction Type:`, interactionData.type);
// --- 2. Determine Current State & Action ---
let currentCount = 0;
let action = "start"; // Default for initial command
if (interactionData.type === InteractionType.MESSAGE_COMPONENT) {
console.log(`[${PLUGIN_NAME}] Processing Message Component interaction.`);
const customId = interactionData.data.custom_id;
const parsedId = parseCounterCustomId(customId);
if (parsedId) {
action = parsedId.action;
currentCount = parsedId.count;
console.log(`[${PLUGIN_NAME}] Parsed action: ${action}, count: ${currentCount}`);
} else {
// Error already logged in parseCounterCustomId
const errResp = createPluginResponse("Error: Invalid button state received.", null, true);
Host.outputString(JSON.stringify(errResp));
return 0; // Return normally but show error
}
} else if (interactionData.type === InteractionType.APPLICATION_COMMAND) {
console.log(`[${PLUGIN_NAME}] Processing Application Command interaction (start).`);
// Use default action='start', currentCount=0
} else {
console.error(`[${PLUGIN_NAME}] Received unexpected interaction type:`, interactionData.type);
const errResp = createPluginResponse("Error: Unexpected interaction type received.", null, true);
Host.outputString(JSON.stringify(errResp));
return 0; // Return normally but show error
}
// --- 3. Calculate New State ---
let newCount = currentCount;
if (action === 'increment') {
newCount++;
} else if (action === 'decrement') {
newCount--;
} // 'start' action uses the initial newCount = currentCount = 0
console.log(`[${PLUGIN_NAME}] New count calculated: ${newCount}`);
// --- 4. Construct Response ---
const responseContent = `Count: ${newCount}`;
const responseComponents = createCounterActionRow(newCount);
const response = createPluginResponse(responseContent, responseComponents, false);
console.log(`[${PLUGIN_NAME}] Sending response JSON:`, JSON.stringify(response));
Host.outputString(JSON.stringify(response));
return 0; // Success
} catch (e) {
// --- 5. Handle Unexpected Errors ---
console.error(`[${PLUGIN_NAME}] Uncaught error in handle_interaction:`, e);
// Send generic error back to user if possible
const errResp = createPluginResponse(`Internal Error: ${e.message || 'Unknown error in counter plugin'}`, null, true);
try { Host.outputString(JSON.stringify(errResp)); } catch (_) {} // Best effort error reporting
return 1; // Indicate failure via exit code
}
}
// --- Exports ---
module.exports = {
get_command_definition,
handle_interaction,
};

26
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@ -0,0 +1,26 @@
Copyright 2024, The Extism Authors.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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ping/README.md Normal file
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# Extism JS PDK Plugin
See more documentation at https://github.com/extism/js-pdk and
[join us on Discord](https://extism.org/discord) for more help.

12
ping/esbuild.js Normal file
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const esbuild = require('esbuild');
esbuild
.build({
entryPoints: ['src/index.js'],
outdir: 'dist',
bundle: true,
sourcemap: true,
minify: false, // might want to use true for production build
format: 'cjs', // needs to be CJS for now
target: ['es2020'] // don't go over es2020 because quickjs doesn't support it
})

422
ping/package-lock.json generated Normal file
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@ -0,0 +1,422 @@
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ping/package.json Normal file
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{
"name": "js-pdk-template",
"version": "1.0.0",
"description": "",
"main": "src/index.js",
"scripts": {
"build": "node esbuild.js && extism-js dist/index.js -i src/index.d.ts -o ../compiled/ping.wasm"
},
"keywords": [],
"author": "",
"license": "BSD-3-Clause",
"devDependencies": {
"esbuild": "^0.19.6"
}
}

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ping/src/index.d.ts vendored Normal file
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declare module 'main' {
export function get_command_definition(): I32;
export function handle_interaction(): I32;
}

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ping/src/index.js Normal file
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// js-src/ping/index.js - Ping Command Handler and Definition for Extism
// --- Command Definition ---
// Define the structure for the /ping command
// This structure should mirror the fields of discordgo.ApplicationCommand
// See: https://pkg.go.dev/github.com/bwmarrin/discordgo@v0.28.1#ApplicationCommand
const pingCommandDefinition = {
// Name must match the filename (ping.wasm -> "ping") and the desired slash command
Name: "ping",
// Description is shown to the user in Discord
Description: "Checks the bot's responsiveness (handled by Wasm!)",
// Options would be an array of ApplicationCommandOption objects if the command took arguments
Options: [],
// Add other fields like DefaultMemberPermissions if needed
// DefaultMemberPermissions: String(1 << 5), // Example: Send Messages permission as string
// DMPermission: true, // Example: Allow command in DMs
};
// Exported function to provide the command definition
function get_command_definition() {
try {
// Convert the definition object to a JSON string
const jsonDefinition = JSON.stringify(pingCommandDefinition);
// Output the JSON string for the Go host
Host.outputString(jsonDefinition);
return 0; // Success
} catch (e) {
// Log error if something goes wrong during stringification
console.error("Error stringifying command definition:", e);
Host.outputString(`{"error": "Failed to generate command definition: ${e.message}"}`);
return 1; // Indicate failure
}
}
// --- Interaction Handler (Remains the same) ---
// Exported function to handle the interaction at runtime
function handle_interaction() {
try {
// const inputJson = Host.inputString(); // Input still available if needed
// console.log("Ping plugin received interaction");
const response = {
content: "Pong!",
ephemeral: false,
};
const jsonResponse = JSON.stringify(response);
Host.outputString(jsonResponse);
return 0; // Success
} catch (e) {
console.error("Error handling interaction:", e);
Host.outputString(`{"error": "Failed to handle interaction: ${e.message}"}`);
return 1; // Indicate failure
}
}
// --- Exports ---
// Export both functions so the Extism runtime can call them
module.exports = {
get_command_definition, // Function for registration
handle_interaction, // Function for runtime execution
};