HTTP GET and POST

Learn how to make HTTP requests in workflows to interact with REST APIs and external services.

Requirements:

• Target API endpoint URLs
• Any required authentication credentials (API keys, tokens, etc.)
• Understanding of the API request/response formats

Fetch and process data

Fetch data from REST API endpoints. Headers and URL parameters must be stringified JSON.

What this workflow does:

• Perform HTTP GET call to retrieve data from an API endpoint

• Use selectors to extract status code and response data

• Log API response status to New Relic

  name: http_get_example
  
    workflowInputs:
      apiUrl:
        type: String
        defaultValue: 'https://api.example.com/data'
  
    steps:
      - name: fetchData
        type: action
        action: http.get
        version: 1
        inputs:
          url: ${{ .workflowInputs.apiUrl }}
          headers: '{"Authorization": "Bearer ${{ :secrets:api_token }}"}'
          urlParams: '{"filter": "active", "limit": "10"}'
          selectors:
            - name: status
              expression: .statusCode
            - name: data
              expression: .responseBody | fromjson
  
      - name: logResponse
        type: action
        action: newrelic.ingest.sendLogs
        version: 1
        inputs:
          logs:
            - message: 'API returned status: ${{ .steps.fetchData.outputs.status }}'
              attributes:
                responseData: ${{ .steps.fetchData.outputs.data }}

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Key actions: http.get, newrelic.ingest.sendLogs

Send data to external systems

Send data to webhooks, APIs, or notification services. Headers must be stringified JSON, body must be a string.

What this workflow does:

• Perform HTTP POST call to send data to an API endpoint

• Use selectors to extract HTTP status and response

• Log webhook response status to New Relic

  name: http_post_example
  
    workflowInputs:
      webhookUrl:
        type: String
      alertMessage:
        type: String
  
    steps:
      - name: sendNotification
        type: action
        action: http.post
        version: 1
        inputs:
          url: ${{ .workflowInputs.webhookUrl }}
          headers: '{"Content-Type": "application/json"}'
          body: '{"event": "alert_triggered", "message": "${{ .workflowInputs.alertMessage }}", "severity": "high"}'
          selectors:
            - name: httpStatus
              expression: .statusCode
            - name: response
              expression: .responseBody
  
      - name: logResult
        type: action
        action: newrelic.ingest.sendLogs
        version: 1
        inputs:
          logs:
            - message: 'Webhook returned status: ${{ .steps.sendNotification.outputs.httpStatus }}'

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Common use cases:

• Trigger deployments via CI/CD webhooks
• Send data to ticketing systems (Jira, ServiceNow)
• Post to custom notification services
• Integrate with third-party APIs

Key actions: http.post, newrelic.ingest.sendLogs

What's next

• JSON parsing: Parse JSON responses with selectors
• Data passing: Pass data between workflow steps