Upload Logs from an MDK App

SAP Cloud Platform Mobile Services provides administrators, developers and support staff with extensive logs and traces functionality to troubleshoot application issues. You can control the amount of information that is captured by setting the log level for individual logging components.

In this step, you will enable client log upload policy in SAP Cloud Platform Mobile Services Cockpit for a given MDK app.

Login to Mobile Services Cockpit, click com.sap.mdk.demo | click + icon to add client log upload feature to the app.

Select Mobile Client Log Upload option and click OK.

Check Log Upload option and click Save.

Other policy parameters like Log Level, Delete Uploaded Log After, Maximum Number of Logs and Maximum Log Size currently have no effect.

You can find more details about Client Log Upload feature.

Logs help you trace events that occur while your application is running. You can create logging actions, set their priority levels and upload stored log entries.

You will create 3 actions:

• Log action of Type SetState: to turn the logger On, Off or Toggle

• Log action of Type SetLevel: to set log level (Debug, Info, Warn or Error)

• Log action of Type Upload: to upload logs from app to Mobile Services

You can find more details about MDK Log Actions.

First, create a log action of type SetState:

Right-click on the Actions folder | New MDK Action | choose MDK Log Actions in Category | click Log Action | Next.

Provide the below information:

Click Next and then Finish on the confirmation step.

Next, create a log action of type SetLevel:

Right-click on the Actions folder | New MDK Action | choose MDK Log Actions in Category | click Log Action | Next.

Provide the below information:

Setting log level to debug is not recommended for productive environment.

Click Next and then Finish on the confirmation step.

Next, create a log action of type Upload:

Right-click on the Actions folder | New MDK Action | choose MDK Log Actions in Category | click Log Action | Next.

Provide the below information:

Click Next and then Finish on the confirmation step.

Double click on the LogSetState.action file | expand Common Action Properties and select LogSetLevel.action for Success Action.

Click Save.

When the metadata is downloaded from App Update, OnDidUpdate event is being called which eventually triggers InitializeOffline.action. You can look at Application.app file for the details.

You will bind LogSetState.action at success of InitializeOffline.action.

Open the InitializeOffline.action, scroll-down and expand Common Action Properties section, select LogSetState.action for the Success Action.

Click Save.

You will define two message actions for displaying success or failure when Log upload action is triggered. Later, you will bind these actions in Common Action Properties of LogUpload.action.

First, you will create a success message action.

Right-click on the Actions folder | New MDK Action | choose MDK Message Actions in Category | click Message Action | Next.

Provide the below information:

Click Next and then Finish on the confirmation step.

Next, create a failure message action.

Right-click on the Actions folder | New MDK Action | choose MDK Message Actions in Category | click Message Action | Next.

Provide the below information:

Click Next and then Finish on the confirmation step.

Next, bind both actions in Common Action Properties of LogUpload.action.

Double click on the LogUpload.action and provide the below information:

You will add a toolbar item to the main page called Upload Logs. You will link toolbar item to LogUpload.action you just created in step 2.

In Main page, drag and drop an Toolbar Item to the bottom right of the page.

Replace Caption to Upload Logs.

In the Properties pane, click the Events tab, click the link icon for the OnPress property to open the object browser.

Double Click on the LogUpload.action action and click OK to set it as the OnPress Action.

Save the changes to the Main.page.

Deploy the updated application to your MDK client.

Right-click on the DemoSampleApp MDK Application in the project explorer pane and select MDK Deploy and Activate.

Since we have deployed already both the destination and app id should be pre-selected based on the last time you deployed our application.  Confirm the Destination Name is mobileservices_cf and the Application Id is com.sap.mdk.demo and click Next.

Open SAP Cloud Platform Mobile Services Cockpit, click Mobile Applications | Native/Hybrid | click on MDK app | Mobile Client Log Upload | Logs.

You may view log entries directly in Mobile Services Cockpit or download them locally.

You can find more details about Uploading and Viewing Client Logs.