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Evolution API

Interact with Evolution API

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Overview

This node, named "Evolution API," is designed to interact with the Evolution API service. Specifically, for the Resource "Chat" and Operation "Ler Mensagens" (Read Messages), it allows users to retrieve specific chat messages from an instance of the Evolution API chat system. This can be useful in scenarios where you want to programmatically access message details for automation, monitoring, or integration purposes.

For example, a user might want to fetch a particular message by its ID from a contact within a given instance to analyze message content, trigger workflows based on message data, or archive conversations.

Properties

Name Meaning
Nome Da Instância The name of the Evolution API instance from which to read the message.
Contato The contact number (remote JID) associated with the message to be read.
ID Da Mensagem The unique identifier of the message to retrieve.
Mensagem É Minha Boolean flag indicating whether the message was sent by the instance itself (true) or received (false).

Output

The node outputs a JSON array containing the retrieved message data. Each item in the output array corresponds to the message details fetched from the Evolution API. The exact structure depends on the API response but typically includes message content, sender information, timestamps, and metadata.

If the node supports binary data output (not evident from the provided code), it would represent any media or attachments related to the message; however, this is not explicitly indicated here.

Dependencies

  • Requires an active connection to the Evolution API service.
  • Needs an API authentication credential configured in n8n to authorize requests.
  • The base URL for API requests is set to https://doc.evolution-api.com/api-reference.
  • No other external dependencies are indicated.

Troubleshooting

  • Operation Not Supported Error: If the node throws an error stating the operation is not supported, verify that the Resource is set to "Chat" and the Operation to "Ler Mensagens". Also, ensure the function implementing this operation exists and is correctly referenced.
  • Missing Required Parameters: Ensure all required properties (Nome Da Instância, Contato, ID Da Mensagem, and Mensagem É Minha) are provided and valid.
  • Authentication Issues: Confirm that the API key or authentication token is correctly configured and has sufficient permissions.
  • Network or API Errors: Check network connectivity and the status of the Evolution API service. Review error messages returned by the API for more details.

Links and References

Discussion