How do you call REST API in ServiceNow?

Create a REST Message

1. Log in to ServiceNow as an administrative user.
2. Navigate to System Web Services > Outbound > REST Message.
3. Click New to create a REST Message.
4. Enter the following details for the REST Message.
5. Select the Authentication tab.
6. Select the HTTP Request tab.
7. Click Submit.

How do I use REST messages in ServiceNow?

Create a REST message

1. Navigate to System Web Services > REST Message.
2. Click New.
3. Complete the following fields: Table 1. REST Message form. Field. Description. Name.
4. Click Submit. After creating the REST message, a GET HTTP method is created automatically using the values from the REST message record.

How do I use outbound REST messages in ServiceNow?

To create an outbound REST Message, use the Application Navigator to open System Web Services > Outbound > REST Message or add a REST Message application file in Studio. Name: A descriptive name for the REST Message. This value is used when invoking the outbound REST Message from a script.

Does ServiceNow have a REST API?

REST API | ServiceNow Developers. ServiceNow provides extensive access to instances through a set of RESTful APIs. ServiceNow REST APIs support Basic Authentication and OAuth 2.0 to authenticate requests. ServiceNow REST APIs are versioned.

How do I test REST messages in ServiceNow?

To test an HTTP method, click the Test related link on the HTTP Method form. Each test run displays the response status, such as 200 for a successful GET request, the full endpoint URL, any parameters passed in the request, and the response body.

What is a REST message?

RESTful Web Services make use of HTTP protocols as a medium of communication between client and server. A client sends a message in form of a HTTP Request and the server responds in the form of an HTTP Response. This technique is termed as Messaging.

What is REST message?

RESTful Web Services make use of HTTP protocols as a medium of communication between client and server. A client sends a message in form of a HTTP Request and the server responds in the form of an HTTP Response. These messages contain message data and metadata i.e. information about message itself.

What is REST API in ServiceNow?

ServiceNow’s REST API Explorer is an application to construct and test API requests to a ServiceNow instance. The REST API Explorer is available to users with the rest_api_explorer role or the admin role. The first time a user launches the REST API Explorer, ServiceNow displays a welcome screen.

What is REST API integration in ServiceNow?

Case API. The Case REST API enables you to retrieve and update Customer Service Management (CSM) case records. Change Management API. The Change Management API provides REST APIs that enable third-party application integration with the ServiceNow Change Management process.

How do I send requests to a REST web service endpoint?

You can send requests to a REST web service endpoint by creating a REST message record. Navigate to System Web Services > REST Message. Click New. Table 1. REST Message form Enter a descriptive name for this message. Enter the endpoint that this REST message is sent to.

What is the REST API for blogging?

This is a simple public JSON API that supports all of the various HTTP verbs and mocks the results. One of the endpoints supplied by the REST API is for managing hypothetical blog posts. The general workflow we’ll be creating is this:

How do I start a flow from an API call?

Note: Use the REST API Trigger to start flows from REST calls from external systems. To start a flow from a script or API call from the same instance, use a subflow, code snippet, or Flow Designer API. See API access to Flow Designer and Create code snippets for flows, sub-flows, and actions.

How do I create a REST API – asynchronous trigger?

Keep in mind that the scope of your flow is included in the REST endpoint you create. In the TRIGGER section, select the REST API – Asynchronous trigger. In the HTTP Method field, set the HTTP method for the endpoint. Create any path parameters required for the endpoint and add them to the relative path in the Path field.