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164 lines
7.9 KiB
Markdown
164 lines
7.9 KiB
Markdown
Create, update and get a subscriber using the MailerLite node
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https://n8nworkflows.xyz/workflows/create--update-and-get-a-subscriber-using-the-mailerlite-node-751
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# Create, update and get a subscriber using the MailerLite node
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### 1. Workflow Overview
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This workflow demonstrates how to manage a subscriber in MailerLite using the n8n MailerLite node. It showcases the sequential process of creating a new subscriber, updating their custom field data, and then retrieving the updated subscriber information. The workflow targets use cases involving subscriber management for email marketing campaigns or CRM integrations.
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Logical blocks:
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- **1.1 Input Trigger**: Manual trigger to start the workflow.
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- **1.2 Subscriber Creation**: Creates a new subscriber with basic details.
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- **1.3 Subscriber Update**: Updates the newly created subscriber’s custom fields.
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- **1.4 Subscriber Retrieval**: Retrieves the updated subscriber details for confirmation or further processing.
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---
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### 2. Block-by-Block Analysis
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#### 1.1 Input Trigger
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- **Overview**: This block initiates the workflow execution manually.
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- **Nodes Involved**:
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- On clicking 'execute'
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- **Node Details**:
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- **Node Name**: On clicking 'execute'
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- **Type & Role**: Manual Trigger node — starts workflow on manual execution.
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- **Configuration**: No parameters set; waits for manual trigger.
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- **Expressions/Variables**: None.
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- **Input/Output Connections**: Outputs to the "MailerLite" node.
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- **Version**: Version 1.
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- **Edge Cases**: No inherent failure modes; workflow will not proceed unless manually triggered.
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- **Sub-workflow**: None.
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#### 1.2 Subscriber Creation
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- **Overview**: Creates a new subscriber in MailerLite with email and name fields.
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- **Nodes Involved**:
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- MailerLite
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- **Node Details**:
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- **Node Name**: MailerLite
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- **Type & Role**: MailerLite node configured to create a subscriber.
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- **Configuration**:
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- Email: fixed value `harshil@n8n.io`
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- Additional Fields: Name set to "Harshil"
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- Operation: Default operation is create (implicit)
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- **Expressions/Variables**: None; static values used.
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- **Input/Output Connections**: Receives input from Manual Trigger; outputs to "MailerLite1".
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- **Version**: Version 1.
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- **Edge Cases**:
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- API authentication failure if credentials invalid.
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- Duplicate subscriber handling depends on MailerLite API behavior (may cause error or update).
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- Network timeouts or request limits.
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- **Sub-workflow**: None.
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#### 1.3 Subscriber Update
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- **Overview**: Updates the subscriber’s custom field "city" to "Berlin".
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- **Nodes Involved**:
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- MailerLite1
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- **Node Details**:
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- **Node Name**: MailerLite1
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- **Type & Role**: MailerLite node performing update operation on subscriber.
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- **Configuration**:
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- Operation: "update"
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- SubscriberId: Expression retrieves the email from the previous node output (`{{$node["MailerLite"].json["email"]}}`)
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- Update Fields: Custom field "city" set to "Berlin"
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- **Expressions/Variables**: Uses expression to fetch subscriber ID from prior node output.
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- **Input/Output Connections**: Input from "MailerLite"; output to "MailerLite2".
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- **Version**: Version 1.
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- **Edge Cases**:
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- Subscriber ID not found or invalid causes API error.
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- If custom field ID is incorrect or missing in MailerLite account, update will fail.
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- Auth or network issues could cause failure.
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- **Sub-workflow**: None.
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#### 1.4 Subscriber Retrieval
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- **Overview**: Retrieves the subscriber data after update to verify changes.
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- **Nodes Involved**:
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- MailerLite2
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- **Node Details**:
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- **Node Name**: MailerLite2
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- **Type & Role**: MailerLite node performing get operation on subscriber.
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- **Configuration**:
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- Operation: "get"
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- SubscriberId: Expression using subscriber email from "MailerLite" node output (`{{$node["MailerLite"].json["email"]}}`)
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- **Expressions/Variables**: Fetching subscriber ID from previous node output.
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- **Input/Output Connections**: Input from "MailerLite1"; no outputs (end of chain).
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- **Version**: Version 1.
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- **Edge Cases**:
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- Subscriber not found error if subscriber was not created or deleted.
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- Auth or network issues.
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- **Sub-workflow**: None.
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---
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### 3. Summary Table
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| Node Name | Node Type | Functional Role | Input Node(s) | Output Node(s) | Sticky Note |
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|--------------------|--------------------|--------------------------------|-----------------------|--------------------|----------------------------------------------|
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| On clicking 'execute' | Manual Trigger | Starts workflow manually | - | MailerLite | |
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| MailerLite | MailerLite Node | Create subscriber with email/name | On clicking 'execute' | MailerLite1 | |
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| MailerLite1 | MailerLite Node | Update subscriber custom fields | MailerLite | MailerLite2 | |
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| MailerLite2 | MailerLite Node | Get subscriber details | MailerLite1 | - | |
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---
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### 4. Reproducing the Workflow from Scratch
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1. **Create a new workflow in n8n.**
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2. **Add a Manual Trigger node:**
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- Name it `On clicking 'execute'`.
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- No parameters need to be set.
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3. **Add a MailerLite node:**
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- Name it `MailerLite`.
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- Set operation to create (default).
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- Set Email field to `harshil@n8n.io`.
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- Under Additional Fields, add Name with value `Harshil`.
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- Select or create MailerLite API credentials with valid API key.
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- Connect output of `On clicking 'execute'` to input of `MailerLite`.
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4. **Add another MailerLite node:**
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- Name it `MailerLite1`.
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- Set operation to `update`.
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- Set SubscriberId to an expression: `{{$node["MailerLite"].json["email"]}}` (gets email from previous node).
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- Under Update Fields > Custom Fields, add a custom field value:
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- Field ID: `city` (ensure this matches your MailerLite custom field ID for city).
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- Value: `Berlin`.
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- Use the same MailerLite API credentials as above.
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- Connect output of `MailerLite` to input of `MailerLite1`.
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5. **Add a third MailerLite node:**
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- Name it `MailerLite2`.
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- Set operation to `get`.
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- Set SubscriberId to expression: `{{$node["MailerLite"].json["email"]}}`.
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- Use the same MailerLite API credentials.
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- Connect output of `MailerLite1` to input of `MailerLite2`.
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6. **Save the workflow and execute manually by clicking the trigger node's Execute button.**
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---
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### 5. General Notes & Resources
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| Note Content | Context or Link |
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|------------------------------------------------------------------------------------------------------|------------------------------------------------------------------|
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| Ensure the MailerLite API key used has appropriate permissions to create, update, and read subscribers. | MailerLite API credentials setup |
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| The custom field ID `city` must exist in your MailerLite account for the update operation to succeed. | MailerLite custom fields documentation |
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| The workflow uses static email `harshil@n8n.io`; adapt this to dynamic inputs for real use cases. | Adapt for production use |
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| MailerLite node documentation: https://docs.n8n.io/integrations/builtin/nodes/n8n-nodes-base.mailerLite/ | Official n8n MailerLite node docs |
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---
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This documentation fully describes the workflow’s structure, node configurations, data flows, and considerations for robustness and reproduction. |