Tutorial: Create automated, schedule-based, recurring workflows by using Azure Logic Apps
This tutorial shows how to build a logic app and automate a recurring workflow that runs on a schedule. Specifically, this example logic app runs every weekday morning and checks the travel time, including traffic, between two places. If the time exceeds a specific limit, the logic app sends email with the travel time and the extra time necessary for your destination.
In this tutorial, you learn how to:
- Create a blank logic app.
- Add a Recurrence trigger that specifies the schedule for your logic app.
- Add a Bing Maps action that gets the travel time for a route.
- Add an action that creates a variable, converts the travel time from seconds to minutes, and stores that result in the variable.
- Add a condition that compares the travel time against a specified limit.
- Add an action that sends you email if the travel time exceeds the limit.
When you're done, your logic app looks like this workflow at a high level:
An Azure subscription. If you don't have a subscription, sign up for a free Azure account before you begin.
An email account from an email provider that's supported by Logic Apps, such as Office 365 Outlook, Outlook.com, or Gmail. For other providers, review the connectors list here. This quickstart uses an Office 365 Outlook account. If you use a different email account, the general steps stay the same, but your UI might slightly differ.
To get the travel time for a route, you need an access key for the Bing Maps API. To get this key, follow the steps for how to get a Bing Maps key.
Sign in to the Azure portal
Sign in to the Azure portal with your Azure account credentials.
Create your logic app
From the main Azure menu, select Create a resource > Integration > Logic App.
Under Create logic app, provide this information about your logic app as shown and described. When you're done, select Create.
Property Value Description Name LA-TravelTime Your logic app's name, which can contain only letters, numbers, hyphens (
-), underscores (
_), parentheses (
)), and periods (
.). This example uses "LA-TravelTime".
Subscription <your-Azure-subscription-name> Your Azure subscription name Resource group LA-TravelTime-RG The name for the Azure resource group, which is used to organize related resources. This example uses "LA-TravelTime-RG". Location West US TThe region where to store your logic app information. This example uses "West US". Log Analytics Off Keep the Off setting for diagnostic logging.
After Azure deploys your app, on the Azure toolbar, select Notifications > Go to resource for your deployed logic app.
Or, you can find and select your logic app by typing the name in the search box.
The Logic Apps Designer opens and shows a page with an introduction video and commonly used triggers and logic app patterns. Under Templates, select Blank Logic App.
Next, add the Recurrence trigger, which fires based on a specified schedule. Every logic app must start with a trigger, which fires when a specific event happens or when new data meets a specific condition. For more information, see Create your first logic app.
Add the Recurrence trigger
On the Logic App Designer, in the search box, enter "recurrence" as your filter. From the Triggers list, select the Recurrence trigger.
On the Recurrence shape, select the ellipses (...) button, and then select Rename. Rename the trigger with this description:
Check travel time every weekday morning
Inside the trigger, change these properties.
Property Required Value Description Interval Yes 1 The number of intervals to wait between checks Frequency Yes Week The unit of time to use for the recurrence
Under Interval and Frequency, open the Add new parameter list, and select these properties to add to the trigger.
- On these days
- At these hours
- At these minutes
Now set the values for the additional properties as shown and described here.
Property Value Description On these days Monday,Tuesday,Wednesday,Thursday,Friday Available only when Frequency is set to "Week" At these hours 7,8,9 Available only when Frequency is set to "Week" or "Day". Select the hours of the day to run this recurrence. This example runs at the 7, 8, and 9-hour marks. At these minutes 0,15,30,45 Available only when Frequency is set to "Week" or "Day". Select the minutes of the day to run this recurrence. This example runs every 15 minutes starting at the zero-hour mark.
This trigger fires every weekday, every 15 minutes, starting at 7:00 AM and ending at 9:45 AM. The Preview box shows the recurrence schedule. For more information, see Schedule tasks and workflows and Workflow actions and triggers.
To hide the trigger's details for now, click inside the shape's title bar.
Save your logic app. On the designer toolbar, select Save.
Your logic app is now live but doesn't do anything other recur. So, add an action that responds when the trigger fires.
Get the travel time for a route
Now that you have a trigger, add an action that gets the travel time between two places. Logic Apps provides a connector for the Bing Maps API so that you can easily get this information. Before you start this task, make sure that you have a Bing Maps API key as described in this tutorial's prerequisites.
In the Logic App Designer, under your trigger, select New step.
Under Choose an action, select Standard. In the search box, enter "bing maps" as your filter, and select the Get route action.
If you don't have a Bing Maps connection, you're asked to create a connection. Provide these connection details, and select Create.
Property Required Value Description Connection Name Yes BingMapsConnection Provide a name for your connection. This example uses "BingMapsConnection". API Key Yes <your-Bing-Maps-key> Enter the Bing Maps key that you previously received. If you don't have a Bing Maps key, learn how to get a key.
Rename the action with this description:
Get route and travel time with traffic
Inside the action, open the Add new parameter list, and select these properties to add to the action.
- Distance unit
- Travel mode
Now set the values for the action's properties as shown and described here.
Property Required Value Description Waypoint 1 Yes <start-location> Your route's origin Waypoint 2 Yes <end-location> Your route's destination Optimize No timeWithTraffic A parameter to optimize your route, such as distance, travel time with current traffic, and so on. Select the "timeWithTraffic" parameter. Distance unit No <your-preference> The unit of distance for your route. This example uses "Mile" as the unit. Travel mode No Driving The travel mode for your route. Select "Driving" mode.
For more information about these parameters, see Calculate a route.
Save your logic app.
Next, create a variable so that you can convert and store the current travel time as minutes, rather than seconds. That way, you can avoid repeating the conversion and use the value more easily in later steps.
Create a variable to store travel time
Sometimes, you might want to run operations on data in your workflow, and then use the results in later actions. To save these results so that you can easily reuse or reference them, you can create variables to store those results after processing them. You can create variables only at the top level in your logic app.
By default, the previous Get route action returns the current travel time with traffic in seconds from the Travel Duration Traffic property. By converting and storing this value as minutes instead, you make the value easier to reuse later without converting again.
Under the Get route action, select New step.
Under Choose an action, select Built-in. In the search box, enter "variables", and select the Initialize variable action.
Rename this action with this description:
Create variable to store travel time
Provide the details for your variable as described here:
Property Required Value Description Name Yes travelTime The name for your variable. This example uses "travelTime". Type Yes Integer The data type for your variable Value No An expression that converts the current travel time from seconds to minutes (see steps under this table). The initial value for your variable
To create the expression for the Value property, click inside the box so that the dynamic content list appears. If necessary, widen your browser until the list appears. In the dynamic content list, select Expression.
When you click inside some edit boxes, the dynamic content list appears. This list shows any properties from previous actions that you can use as inputs in your workflow. The dynamic content list has an expression editor where you can select functions to run operations. This expression editor appears only in the dynamic content list.
In the expression editor, enter this expression:
Put your cursor inside the expression between the left parenthesis (() and the comma (,). select Dynamic content.
In the dynamic content list, select Travel Duration Traffic.
After the property value resolves inside the expression, select OK.
The Value property now appears as shown here:
Save your logic app.
Next, add a condition that checks whether the current travel time is greater than a specific limit.
Compare the travel time with limit
Under the previous action, select New step.
Under Choose an action, select Built-in. In the search box, enter "condition" as your filter. From the actions list, select the Condition action.
Rename the condition with this description:
If travel time exceeds limit
Build a condition that checks whether the travelTime property value exceeds your specified limit as described and shown here:
In the condition, click inside the Choose a value box on the condition's left side.
From the dynamic content list that appears, under Variables, select the travelTime property.
In the middle comparison box, select the is greater than operator.
In the Choose a value box on the condition's right side, enter this limit:
When you're done, the condition looks like this example:
Save your logic app.
Next, add the action to run when the travel time exceeds your limit.
Send email when limit exceeded
Now, add an action that emails you when the travel time exceeds your limit. This email includes the current travel time and the extra time necessary to travel the specified route.
In the condition's If true branch, select Add an action.
Under Choose an action, select Standard. In the search box, enter "send email". The list returns many results, so first select the email connector that you want, for example:
- For Azure work or school accounts, select Office 365 Outlook.
- For personal Microsoft accounts, select Outlook.com.
When the connector's actions appear, select "send email action" that you want to use, for example:
If you don't already have a connection, you're asked to sign in to your email account.
Logic Apps creates a connection to your email account.
Rename the action with this description:
Send email with travel time
In the To box, enter the recipient's email address. For testing purposes, use your email address.
In the Subject box, specify the email's subject, and include the travelTime variable.
Enter the text
Current travel time (minutes):with a trailing space.
In the dynamic content list, under Variables, select See more.
After travelTime appears under Variables, select travelTime.
In the Body box, specify the content for the email body.
Enter the text
Add extra travel time (minutes):with a trailing space.
In the dynamic content list, select Expression.
In the expression editor, enter this expression so that you can calculate the number of minutes that exceed your limit:
Put your cursor inside the expression between the left parenthesis (() and the comma (,). Select Dynamic content.
Under Variables, select travelTime.
After the property resolves inside the expression, select OK.
The Body property now appears as shown here:
Save your logic app.
Next, test your logic app, which now looks similar to this example:
Run your logic app
To manually start your logic app, on the designer toolbar bar, select Run.
If the current travel time stays under your limit, your logic app does nothing else and waits or the next interval before checking again.
If the current travel time exceeds your limit, you get an email with the current travel time and the number of minutes above your limit. Here is an example email that your logic app sends:
If you don't get any emails, check your email's junk folder. Your email junk filter might redirect these kinds of mails. Otherwise, if you're unsure that your logic app ran correctly, see Troubleshoot your logic app.
Congratulations, you've now created and run a schedule-based recurring logic app.
To create other logic apps that use the Recurrence trigger, check out these templates, which available after you create a logic app:
- Get daily reminders sent to you.
- Delete older Azure blobs.
- Add a message to an Azure Storage queue.
Clean up resources
When you no longer need the sample logic app, delete the resource group that contains your logic app and related resources.
On the main Azure menu, go to Resource groups, and select the resource group for your logic app.
On the resource group menu, select Overview > Delete resource group.
Enter the resource group name as confirmation, and select Delete.
In this tutorial, you created a logic app that checks traffic based on a specified schedule (on weekday mornings), and takes action (sends email) when the travel time exceeds a specified limit. Now, learn how to build a logic app that sends mailing list requests for approval by integrating Azure services, Microsoft services, and other SaaS apps.