Actions12
Post → Create
AI-generatedOverview
This node allows you to create a new post in the Missive platform. It is useful for automating communication workflows where you want to programmatically add posts to conversations or threads within Missive. Typical scenarios include posting updates, sharing information with team members, or adding notifications to conversations.
For example, you can use this node to:
- Post plain text or markdown-formatted messages to a conversation.
- Attach files or rich content attachments to your posts.
- Send notifications alongside posts.
- Manage conversation metadata such as subject, color, and user assignments.
Properties
| Name | Meaning |
|---|---|
| Text (Plain) | Plain text content of the post. |
| Markdown | Markdown-formatted content of the post. |
| Attachments | One or more attachments to include with the post. Each attachment can contain binary file data, fields (title, value, short), color, pretext, author info, title, images, text, markdown, timestamp, footer, and icons. |
| Notification | Optional notification to send with the post, including a title and body text. |
| Additional Fields | Various optional settings to customize the post and its conversation context: references (for threading), conversation ID, conversation subject, conversation color, team ID, force team flag, organization ID, users to add, assignees, shared labels to add/remove, flags to close/reopen conversation, inbox flags, mark as unread, suppress notifications, system message flag, custom username and avatar URLs, and custom conversation icon URL. |
Output
The node outputs the JSON response from the Missive API after creating the post. This typically includes details about the created post such as its ID, content, timestamps, and any metadata returned by the API.
If attachments are included, their content is sent encoded in base64, but the output only contains the API response, not the raw binary data.
Dependencies
- Requires an API authentication token credential for the Missive API.
- The node makes HTTP POST requests to
https://public.missiveapp.com/v1/postsendpoint. - Proper configuration of the API key credential in n8n is necessary.
Troubleshooting
Error: At least one of HTML, text, markdown, or attachments must be provided
This error occurs if you try to create a post without providing any content or attachments. Ensure that at least one of the "Text (Plain)", "Markdown", or "Attachments" fields is filled.Invalid API credentials or authorization errors
Make sure the API token credential is correctly set up and has sufficient permissions to create posts.Attachment issues
If attachments fail, verify that the binary property names are correct and that the binary data exists on the input item.Malformed additional fields
Some additional fields expect comma-separated lists; ensure proper formatting without extra spaces or invalid characters.
Links and References
- Missive API Documentation (general reference for API endpoints and payloads)
- n8n Documentation - Creating Custom Nodes (for understanding how nodes work in n8n)
If you need further details on other operations or resources, feel free to ask!