🌤 Azure Logic Apps - Weather to Email

Weather Mailer is a clean, ready-to-deploy Azure Logic App that takes a city name and an email address, fetches live weather data from OpenWeather, and sends a well-formatted email using Office 365.

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🚀 What it does

1. HTTP trigger receives a JSON payload:

   { "city": "Tel Aviv", "email": "user@example.com" }

2. Calls OpenWeather API in metric units (°C).

3. Parses and processes temperature, feels_like, humidity, wind speed, and description.

4. Converts wind speed from m/s to km/h.

5. Sends a formatted email via Office 365.

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🧭 Architecture

flowchart LR
  A[Client / Caller] -->|HTTP POST city+email| B[Logic App - HTTP Trigger]
  B --> C[HTTP action - OpenWeather API]
  C -->|JSON weather data| D[Parse JSON]
  D --> E[Compose values: temp, feels_like, humidity, wind m/s -> km/h]
  E --> F[Office 365 - Send an email]
  F --> G[Recipient inbox]

  classDef azure fill:#2563eb,stroke:#1e40af,stroke-width:1,color:#fff
  classDef svc fill:#0ea5e9,stroke:#0369a1,stroke-width:1,color:#fff
  class B,D,E azure
  class C,F svc

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Sequence

sequenceDiagram
  autonumber
  participant Client
  participant LogicApp as Logic App
  participant OpenWeather as OpenWeather API
  participant O365 as Office 365

  Client->>LogicApp: HTTP POST city+email
  LogicApp->>OpenWeather: GET /data/2.5/weather?q=<city>&units=metric
  OpenWeather-->>LogicApp: 200 OK (JSON)
  LogicApp->>LogicApp: Parse JSON + convert wind m/s -> km/h
  LogicApp->>O365: Send email (HTML body)
  O365-->>Client: Email delivered

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🗂 Repository Structure

deploy/
 ├─ azuredeploy.json             # ARM template for Logic App + O365 connection + $connections
 ├─ azuredeploy.parameters.json  # Example parameter file
workflow/
 └─ logicapp.definition.json     # Full Logic App workflow definition (WDL)
docs/
 └─ screenshots / diagrams       # Optional

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📦 Deploy to Azure

Use the button at the top or the Azure CLI:

$definition = Get-Content -Raw workflow/logicapp.definition.json
az login
az account set --subscription "<YOUR_SUBSCRIPTION_ID>"
az group create -n rg-logicapps-demo -l westeurope
az deployment group create `
  -g rg-logicapps-demo `
  -f deploy/azuredeploy.json `
  -p logicAppName="la-weather-mailer" `
     location="westeurope" `
     openWeatherKey="<YOUR_OPENWEATHER_KEY>" `
     office365ConnectionName="office365" `
     workflowDefinition="$definition"

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⚙ Prerequisites

• Active Azure subscription with permissions to deploy resources
• OpenWeather API key
• Office 365 account with permission to send email

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🛠 How to use after deployment

1. Open your Logic App in Azure Portal.

2. Copy the HTTP POST URL from the HTTP trigger.

3. Send a POST request with:

   { "city": "London", "email": "you@example.com" }

4. Check your inbox for the formatted weather email.

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📌 Example Email Output

Parameter	Example Value
City	Tel Aviv
Temperature	28°C
Feels Like	30°C
Humidity	60%
Wind Speed	14 km/h
Description	Clear sky

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✨ Credits

Developed by Captain Azure - Ofek Ben Eliezer Microsoft Certified Trainer | Azure Architect | AI & Cloud Expert