# Azure Eventgrid Py

> Azure Event Grid SDK for Python. Use for publishing events, handling CloudEvents, and event-driven architectures. Use when this capability is needed.

- Skill: `tomevault-io/azure-eventgrid-py` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/azure-eventgrid-py`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/azure-eventgrid-py/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/azure-eventgrid-py

---


# Azure Event Grid SDK for Python

Event routing service for building event-driven applications with pub/sub semantics.

## Installation

```bash
pip install azure-eventgrid azure-identity
```

## Environment Variables

```bash
EVENTGRID_TOPIC_ENDPOINT=https://<topic-name>.<region>.eventgrid.azure.net/api/events
EVENTGRID_NAMESPACE_ENDPOINT=https://<namespace>.<region>.eventgrid.azure.net
```

## Authentication

```python
from azure.identity import DefaultAzureCredential
from azure.eventgrid import EventGridPublisherClient

credential = DefaultAzureCredential()
endpoint = "https://<topic-name>.<region>.eventgrid.azure.net/api/events"

client = EventGridPublisherClient(endpoint, credential)
```

## Event Types

| Format | Class | Use Case |
|--------|-------|----------|
| Cloud Events 1.0 | `CloudEvent` | Standard, interoperable (recommended) |
| Event Grid Schema | `EventGridEvent` | Azure-native format |

## Publish CloudEvents

```python
from azure.eventgrid import EventGridPublisherClient, CloudEvent
from azure.identity import DefaultAzureCredential

client = EventGridPublisherClient(endpoint, DefaultAzureCredential())

# Single event
event = CloudEvent(
    type="MyApp.Events.OrderCreated",
    source="/myapp/orders",
    data={"order_id": "12345", "amount": 99.99}
)
client.send(event)

# Multiple events
events = [
    CloudEvent(
        type="MyApp.Events.OrderCreated",
        source="/myapp/orders",
        data={"order_id": f"order-{i}"}
    )
    for i in range(10)
]
client.send(events)
```

## Publish EventGridEvents

```python
from azure.eventgrid import EventGridEvent
from datetime import datetime, timezone

event = EventGridEvent(
    subject="/myapp/orders/12345",
    event_type="MyApp.Events.OrderCreated",
    data={"order_id": "12345", "amount": 99.99},
    data_version="1.0"
)

client.send(event)
```

## Event Properties

### CloudEvent Properties

```python
event = CloudEvent(
    type="MyApp.Events.ItemCreated",      # Required: event type
    source="/myapp/items",                 # Required: event source
    data={"key": "value"},                 # Event payload
    subject="items/123",                   # Optional: subject/path
    datacontenttype="application/json",   # Optional: content type
    dataschema="https://schema.example",  # Optional: schema URL
    time=datetime.now(timezone.utc),      # Optional: timestamp
    extensions={"custom": "value"}         # Optional: custom attributes
)
```

### EventGridEvent Properties

```python
event = EventGridEvent(
    subject="/myapp/items/123",            # Required: subject
    event_type="MyApp.ItemCreated",        # Required: event type
    data={"key": "value"},                 # Required: event payload
    data_version="1.0",                    # Required: schema version
    topic="/subscriptions/.../topics/...", # Optional: auto-set
    event_time=datetime.now(timezone.utc)  # Optional: timestamp
)
```

## Async Client

```python
from azure.eventgrid.aio import EventGridPublisherClient
from azure.identity.aio import DefaultAzureCredential

async def publish_events():
    credential = DefaultAzureCredential()
    
    async with EventGridPublisherClient(endpoint, credential) as client:
        event = CloudEvent(
            type="MyApp.Events.Test",
            source="/myapp",
            data={"message": "hello"}
        )
        await client.send(event)

import asyncio
asyncio.run(publish_events())
```

## Namespace Topics (Event Grid Namespaces)

For Event Grid Namespaces (pull delivery):

```python
from azure.eventgrid.aio import EventGridPublisherClient

# Namespace endpoint (different from custom topic)
namespace_endpoint = "https://<namespace>.<region>.eventgrid.azure.net"
topic_name = "my-topic"

async with EventGridPublisherClient(
    endpoint=namespace_endpoint,
    credential=DefaultAzureCredential()
) as client:
    await client.send(
        event,
        namespace_topic=topic_name
    )
```

## Best Practices

1. **Use CloudEvents** for new applications (industry standard)
2. **Batch events** when publishing multiple events
3. **Include meaningful subjects** for filtering
4. **Use async client** for high-throughput scenarios
5. **Handle retries** — Event Grid has built-in retry
6. **Set appropriate event types** for routing and filtering

## When to Use
This skill is applicable to execute the workflow or actions described in the overview.

---

<!-- AGI-INTEGRATION-START -->

## AGI Framework Integration

> **Adapted for [@techwavedev/agi-agent-kit](https://www.npmjs.com/package/@techwavedev/agi-agent-kit)**
> Original source: [antigravity-awesome-skills](https://github.com/sickn33/antigravity-awesome-skills)

### Memory-First Protocol

Retrieve prior deployment configurations, rollback procedures, and incident post-mortems. Avoid re-discovering infrastructure patterns.

```bash
# Check for prior infrastructure context before starting
python3 execution/memory_manager.py auto --query "deployment configuration and patterns for Azure Eventgrid Py"
```

### Storing Results

After completing work, store infrastructure decisions for future sessions:

```bash
python3 execution/memory_manager.py store \
  --content "Deployment pipeline: configured blue-green deployment with health checks on port 8080" \
  --type technical --project <project> \
  --tags azure-eventgrid-py devops
```

### Multi-Agent Collaboration

Broadcast deployment changes so frontend and backend agents update their configurations accordingly.

```bash
python3 execution/cross_agent_context.py store \
  --agent "<your-agent>" \
  --action "Deployed infrastructure changes — updated CI/CD pipeline with new health check endpoints" \
  --project <project>
```

### Playbook Integration

Use the `ship-saas-mvp` or `full-stack-deploy` playbook to sequence this skill with testing, documentation, and deployment verification.

<!-- AGI-INTEGRATION-END -->

---
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<!-- tomevault:4.0:skill_md:2026-04-13 -->