# Trigger an External API

Follow the steps to trigger an External API within DBSync mapping:

1. Create a workflow and place them as the last sequence among all the workflows. As a result, the trigger is initiated after completion of all the workflow.
2. In Query Builder, select a datasource such as database and read only one record by limiting it to 1.\
   **Example:select \* from sku\_to\_qb\_relation limit 1.**
3. Under Rules, add Console adapter as Target Connector, Operation as insert and, Console as Target object.
4. Click map, and within out field, add a Java code to trigger External API. \
   **Example:**

{% code overflow="wrap" %}

```
{String location="
https://712c08e0.ngrok.io/appcenter/login
";try{jav
a.net
.HttpURLConnection c=(
java.net
.HttpURLConnection)new 
java.net
.URL(location).openConnection();c.setRequestMethod("GET");if(c.getResponseCode()==200){return new 
java.io
.BufferedReader(new 
java.io
.InputStreamReader(
c.ge
tInputStream())).lines().collect(java.util.stream.Collectors.joining());}}catch(
java.io
.IOException e){e.printStackTrace();}return "GET request did not work";}
```

{% endcode %}

5. Save and Close. Then, click Save Workflow. 
6. Click on 'Run Now' and check output within the Console.

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