When creating a new flow, if you know the circumstances under which you want the flow to activate, select Start with a trigger and select an available trigger that will activate the flow.
If an app has multiple triggers that require a port to be specified, for example REST and/or GraphQL triggers, make sure that the port number is unique for for each trigger. Two triggers in the same app cannot run on the same port.
If you are unsure of the circumstances under which the flow should be activated or if you want the flow to be activated under more than one situation, use the Configure flow inputs and outputs and attach the flow to the trigger(s) at a later time as needed. See Creating a Flow without a Trigger for more details on this.
Refer to the following sections for more details:
Creating a Flow Attached to a REST Trigger Ceating a Flow Attached to a GraphQL Trigger Creating a Flow Attached to Other Triggers
Creating a Flow Attached to a REST (Receive HTTP Message) Trigger
When creating a flow with a REST trigger, you have the option to either enter the schema in the Add a trigger dialog while creating the flow or you can start by using a Swagger-compliant specification file to create the flow.
If you want to use a Swagger-compliant specification file, refer to the Using a Swagger Specification section for details.
You can create a REST flow by entering a JSON schema or dragging and dropping a Swagger-compliant JSON file.
To create a REST flow by entering the schema, do the following:
Procedure
1. Click an app name on the Apps page in TIBCO Cloud Integration - Flogo (PAYG) to open its page.
2. Click Create.
The Create flows and triggers dialog opens.
3. Enter a name for the flow in the Name text box.
Flow names within an app must be unique. An app cannot contain two flows with the same name.
4. Optionally, enter a brief description of what the flow does in the Description text box.
5. New flow is selected by default. Click Create.
6. Select Start with a trigger.
The triggers catalog opens with all the available triggers showing.
7. Click Receive HTTP Message, the REST trigger.
The trigger configuration dialog opens.
8. Select the REST operation under Method that you want to implement by clicking it .
A flow can have multiple REST triggers. Two REST triggers cannot have an identical port, path, and method combination. Each REST trigger needs to differ from the other REST triggers for the same flow with either a unique port, path, or operation (GET, PUT, POST, DELETE).
9. Enter a resource path in the Resource Path text box.
10. Enter the JSON schema or JSON sample data for the operation in the Enter a JSON Schema or an example of your JSON message. This will be the schema for both input and output.
11. Click Continue.
12. Select one of the following dialog:
If you select Copy Schema, the schema that you entered in this step above automatically gets copied or displayed in a tree format to the following locations when the trigger gets added:
● Trigger output in the Map to Flow Inputs tab of the trigger
● Flow input in the Input Settings tab of the Flow Inputs & Outputs accordian tab.
● Trigger reply (If the trigger has a reply) in the Reply Settings of the trigger.
Refer to the "REST Trigger" section in the TIBCO Flogo® Activities and Triggers Guide for details on configuration parameters.
If you select Just add the trigger, a REST trigger gets added to the flow without any configuration.
You can configure this REST trigger by clicking on the trigger from the app details page at a later time.
The flow page opens.
13. Map the trigger output to the flow input.
a) Open the trigger configuration dialog by clicking on the trigger.
b) Open the Map to Flow Inputs tab.
c) Map the elements under Flow input to their corresponding elements under Trigger Output one at a time.
14. Map the flow output to the trigger reply as follows:
a) In the trigger configuration dialog, click the Map from Flow Outputs tab.
b) Map the elements under Trigger Reply to their corresponding elements under Flow Output.
c) Close the dialog by clicking on the x at its top right corner.
15. Add activites to the flow by hovering your mouse cursor next to the Flow Inputs & Outputs tab and clicking the plus sign.
Creating a Flow attached to the GraphQL Trigger
You create GraphQL flows by uploading a GraphQL schema file with an extension, .gql or .graphql. TIBCO Cloud Integration - Flogo (PAYG) creates the appropriate flows based on your schema. When the flow gets created, a GraphQL trigger automatically gets generated and attched to each flow that gets created.
Refer to the section, Using GraphQL Schema on how to create a flow using a GraphQL schema. Also, refer to the "GraphQL Trigger" section in the TIBCO Flogo® Activities and Triggers Guide for details on the GraphQL trigger.
Creating a Flow Attached to Other Triggers
This section applies to triggers that are not REST or GraphQL triggers.
To create a flow with such a trigger, follow these steps:
Procedure
1. Click an app name in the Apps page in TIBCO Cloud Integration - Flogo (PAYG) to open its page.
2. Click the +Create if this is the first flow in the app or the Create button if a flow already exists in the app.The Create flows and triggers dialog opens.
3. Select New flow.
4. Enter a name for the flow in the Name text box.
Flow names within an app must be unique. An app cannot contain two flows with the same name.
5. Optionally, enter a brief description of what the flow does in the Description text box and click Create.
6. Select Start with a trigger.
The Add a trigger dialog opens with all the available triggers showing.
7. Click the trigger that you want to add. For non-Timer triggers you will be required to select a connection that you want to use with the trigger.
The flow page is displayed with the trigger.
8. Click the trigger to display its properties. For example, the image below shows the Timer trigger.
9. Configure the trigger properties for the trigger. See the respective trigger section in the TIBCO Flogo® Activities and Triggers Guide for details.
10. Add activities to the flow by clicking the + icon next to the Flow Inputs & Outputs tab.