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Short answer: Build a dedicated OpenClaw skill that calls Postiz’s HTTP APIs (or uses Postiz OAuth), install the skill via ClawHub, and host all persistent pieces (OAuth callback endpoint, token storage, webhooks, retry/queue worker) outside the agent runtime. Configure credentials and secrets in ClawHub (or your secrets manager) as environment variables, validate incoming Postiz webhooks, and instrument request/response logging and retries. Debug by inspecting agent invocation logs, API responses from Postiz, stored tokens/scopes, and webhook signatures. The steps below show how to structure the integration, how to authenticate, how to implement REST calls, and how to run reliably in production.
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<b>//</b> server URL of your adapter that has the actual Postiz credentials and token store
const ADAPTER_BASE = process.env.ADAPTER_BASE; <b>//</b> e.g. https://api.example.com/v1/postiz
<b>//</b> Example function the skill executes to send a message via your adapter
async function sendMessage(payload) {
<b>//</b> payload: { accountId, to, subject, body, idempotencyKey }
const res = await fetch(`${ADAPTER_BASE}/send`, {
method: 'POST',
headers: {
'content-type': 'application/json'
},
body: JSON.stringify(payload)
});
<b>//</b> Bubble up errors with response body for debugging
if (!res.ok) {
const text = await res.text();
throw new Error(`Adapter send failed: ${res.status} ${text}`);
}
return res.json(); <b>//</b> expected: { messageId, status }
}
<b>//</b> This code runs on your server (not in the agent). Replace POSTIZ_* with real values.
const express = require('express');
const fetch = require('node-fetch');
const app = express();
app.get('/v1/postiz/oauth/callback', async (req, res) => {
const code = req.query.code;
<b>//</b> Exchange code for tokens
const tokenRes = await fetch(process.env.POSTIZ_TOKEN_URL, {
method: 'POST',
headers: { 'content-type': 'application/x-www-form-urlencoded' },
body: new URLSearchParams({
grant_type: 'authorization_code',
code,
redirect_uri: process.env.POSTIZ_REDIRECT_URI,
client_id: process.env.POSTIZ_CLIENT_ID,
client_secret: process.env.POSTIZ_CLIENT_SECRET
})
});
if (!tokenRes.ok) {
const text = await tokenRes.text();
return res.status(500).send(`Token exchange failed: ${text}`);
}
const tokens = await tokenRes.json();
<b>//</b> Persist tokens securely here (DB/secrets manager) keyed to user/account
// saveTokens(userId, tokens);
return res.send('Connected');
});
<b>//</b> Validate incoming webhook signatures. Adjust header name and algorithm to Postiz's spec.
const crypto = require('crypto');
function verifyWebhook(rawBody, signatureHeader, secret) {
<b>//</b> Example: HMAC-SHA256 of the raw body
const expected = crypto.createHmac('sha256', secret).update(rawBody).digest('hex');
return crypto.timingSafeEqual(Buffer.from(expected), Buffer.from(signatureHeader));
}
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1
Direct answer: A 401 from clawctl login means the Postiz credentials or auth flow are rejected — most often wrong API key/secret, wrong token endpoint or grant type, missing environment variables, or insufficient scopes/permissions. Verify the exact auth method Postiz expects and confirm the stored credentials match that method.
// verify token endpoint directly
curl -i -X POST "https://auth.postiz.example/token" \
-d "grant_type=client_credentials&client_id=$CLIENT_ID&client_secret=$CLIENT_SECRET"
2
The error means Kubernetes doesn’t know the custom resource kind because the CRD either wasn’t installed, was applied to the wrong API group/version, hasn’t become Established, or the operator watches a different API. Fix by verifying the CRD exists, its apiVersion/group/kind match your manifest, wait for the CRD to be established, and check the operator logs and permissions.
kubectl get crd
kubectl api-resources | grep -i postiz
kubectl logs -n claw-system deployment/claw-operator
3
Direct answer: claw-webhook rejects events when the HTTP Content-Type header doesn't match the endpoint's configured media type (causing a 415) or when the JSON payload fails the webhook's schema validation (causing a 400). Fix by sending the exact Content-Type and a payload that matches the expected JSON schema.
curl -X POST https://your-webhook.example/receive -H "Content-Type: application/json" -d '{"event":"postiz","id":"123"}'
// ensure the JSON keys/types match the webhook schema
4
The reconciliation loop stuck with "failed to create" or API version mismatch after a Postiz upgrade usually means the operator’s CRD/CR version or webhook conversion no longer matches the running controller. Fix by confirming CRD versions, controller image and startup logs, webhook/conversion configs, and rolling restarts or CRD reapply to restore compatibility; migrate stored objects if needed.
Check CRDs, API versions, and controller logs for conversion errors, permission denied, or unknown fields.
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