@useparagon/core

Triggers

CronStep

Use CronStep to start the workflow on a periodic schedule. Scheduler

Inputs

ParameterTypeDescription

cron

string*

The cron expression of the schedule for this trigger, from seconds to weeks. Example: 0 0 9 * * * (every day at 9:00 AM)

timezone

string

The timezone to use for the cron expression, expressed as an IANA timezone string. Defaults to America/Los_Angeles. Example: Etc/Universal (UTC)

Outputs

The CronStep does not produce any usable output.

EndpointStep

Use EndpointStep to trigger this workflow via an HTTP request. Request

Inputs

ParameterTypeDescription

allowArbitraryPayload

boolean*

If true, this Request trigger will accept any type of request. If false, this Request trigger will require headerValidations, bodyValidations, and paramValidations to be defined.

headerValidations

HeaderValidation[]

An array of validations to use on the headers for requests to this Request trigger. This can be used to validate the presence of required headers to inbound requests. Example: [{ key: "X-Tasklab-Id", required: true }]

bodyValidations

BodyValidation[]

An array of validations to use on body fields for requests to this Request trigger. This can be used to validate the presence or type of data in the body of inbound requests. Example: [{ key: "userId", dataType: "STRING", required: true }]

paramValidations

ParamValidation[]

An array of validations to use on the URL parameters for requests to this Request trigger. This can be used to validate the presence of required parameters to inbound requests. Example: [{ key: "query", required: true }]

Outputs

Access the output of a Request trigger with requestTrigger.output.request. The below fields are fields of the .request property.

FieldTypeDescription

headers

object

An object of the HTTP headers received in the request. Access these properties in lowercased format, e.g. requestTrigger.output.request.headers['content-type'] .

body

any

An object or string of the HTTP body received in the request. The body will be an object when the Content-Type is application/json, multipart/form-data, or application/x-www-form-urlencoded. Otherwise, it will be attempted to be parsed as a string or File (see below).

params

object

An object of the URL parameters received in the request.

file

FileValue | undefined

If the HTTP body refers to a file, the file contents will be available as a FileValue object. Otherwise, this property will resolve to undefined.

EventStep

Use EventStep to trigger this workflow with an App Event.

Inputs

To construct an App Event Trigger, first import your App Event into the Workflow:

import taskCreated from '../../../events/newTask';

Then, pass this import to the constructor of EventStep:

const trigger = new EventStep(taskCreated);

Because App Events can be shared across different workflows and integrations, they are required to be defined in the src/events folder of your Paragraph project.

Outputs

Access the output of an App Event trigger with appEventTrigger.output. The output will match the schema of the App Event that this trigger uses.

IntegrationEnabledStep

Use IntegrationEnabledStep to trigger this workflow when a user enables the integration.

Inputs

This trigger does not use any parameters.

Outputs

The IntegrationEnabledStep does not produce any usable output.

Steps

ConditionalStep

A Conditional branching step to allow for control flow in Workflows.

Inputs

ParameterTypeDescription

if

ConditionalInput*

Outputs

ParameterTypeDescription

selectedChoice

"Yes" | "No"

The branch that was chosen when this ConditionalStep was evaluated.

DelayStep

A step to pause the workflow for a fixed amount of time.

Inputs

ParameterTypeDescription

value

number*

How long to pause the workflow for, measured by the unit parameter.

unit

"SECONDS" | "MINUTES" | "HOURS" | "DAYS"

The unit of time to use when delaying the workflow. Defaults to "MINUTES".

Outputs

The DelayStep does not produce any usable output.

FanOutStep

A step to map over a set (array) of data in parallel, for e.g. data transformation or batch uploads.

Inputs

ParameterTypeDescription

iterator

any[]

A set of data to iterate over in the Fan Out.

Outputs

Access one instance of a Fan Out step with fanOutStep.output.instance. This can only be used by steps that are in this Fan Out's branch (see: Fan out branches).

FieldTypeDescription

instance

any

An item of the iterator property that is being processed in this branch.

FunctionStep

A JavaScript function step.

Inputs

ParameterTypeDescription

code

Function*

The function to run. This function must have the signature function(parameters, libraries) and must be self-contained, meaning that it cannot reference JavaScript values outside of the function body. To pass execution data through this step, use the parameters object. The list of libraries can be found in: JavaScript Libraries

parameters

object*

Parameters from other step outputs to inject into the function.

Outputs

Access the result of an Function step with functionStep.output.result.

FieldTypeDescription

result

any

The return result of code after evaluation with parameters. Note: if code returns a Promise, the Function step will automatically await this Promise and return the unwrapped result.

IntegrationRequestStep

A step to send a custom request to the integration's API, without needing to provide auth details.

Inputs

ParameterTypeDescription

method

"GET" | "POST" | "PATCH" | "PUT" | "DELETE"*

The HTTP method to use for this API request. If you select POST, PUT, or PATCH methods, the body and bodyType parameters will be required.

url

string*

The relative path of the API request, with respect to the base URL provided by the integration. Specifying a full URL is also supported.

bodyType

"json" | "form-data" | "x-www-form-urlencoded" | "xml" | "raw"

Select the type of request body that should be sent. Paragon will automatically encode the payload and set the correct Content-Type headers.

body

object | string | (pageToken: string) => object | string)

An object or string representing the request body to be sent. If using Request Step Pagination, you can specify a function that returns the body of the request with respect to the Page Token.

headers

object | (pageToken: string) => object

An object of the HTTP headers sent in the request. Integration Request Steps will automatically include the user's authentication details for the request.

params

object | (pageToken: string) => object

An object of the URL parameters sent in the request. Parameters can be specified in either here or the url property.

pagination

(step) => PaginationOptions

If using Request Step Pagination, you can define the options used in this function. Use the step parameter of the pagination function to access the output in Example:

new IntegrationRequestStep({
  method: "GET",
  url: "/opportunities",
  params: (pageToken) => ({
    pageToken
  }),
  pagination: (step) => {
    return {
      outputPath: step.output.response.body.data,
      pageToken: step.output.response.body.nextPageToken,
      stopCondition: Operators.Or(
        Operators.And(
          Operators.DoesNotExist(step.output.response.body.nextPageToken)
        )
      )
    }
  },
});

Outputs

Access the output of an Integration Request step with requestStep.output.response.

FieldTypeDescription

headers

object

An object of the HTTP headers received in the response.

body

any

An object or string of the HTTP body received in the response.

statusCode

number

The HTTP status code of the response.

RequestStep

A step to send an HTTP request from a workflow.

Inputs

ParameterTypeDescription

method

"GET" | "POST" | "PATCH" | "PUT" | "DELETE"*

The HTTP method to use for this API request. If you select POST, PUT, or PATCH methods, the body and bodyType parameters will be required.

url

string*

The full URL of the HTTP request to send.

bodyType

"json" | "form-data" | "x-www-form-urlencoded" | "xml" | "raw"

Select the type of request body that should be sent. Paragon will automatically encode the payload and set the correct Content-Type headers.

body

object | string

An object or string representing the request body to be sent.

headers

object

An object of the HTTP headers sent in the request.

params

object

An object of the URL parameters sent in the request. Parameters can be specified in either here or the url property.

authorization

AuthorizationConfig

Choose between Basic authentication, Bearer token authentication, and OAuth 2.0 Client Credentials for handling the authorization of this request. Example:

new RequestStep({
  method: 'GET',
  url: 'https://myapp.io/api',
  authorization: {
    type: 'basic',
    username: 'paragon-user',
    password: context.getEnvironmentSecret("API_SECRET"),
  },
});

Outputs

Access the output of a Request step with requestStep.output.response.

FieldTypeDescription

headers

object

An object of the HTTP headers received in the response.

body

any

An object or string of the HTTP body received in the response.

statusCode

number

The HTTP status code of the response.

ResponseStep

A step (for use in Request-triggered workflows only) to send an HTTP response from a workflow.

Inputs

ParameterTypeDescription

responseType

"JSON" | "FILE"*

The type of Response to send to the HTTP Request that triggered the workflow. Choose between a JSON-encoded response or a raw File type.

body

object | FileValue*

If using a JSON responseType, provide an object to send in the response. If using a File responseType, provide a FileValue to send in the respnose.

statusCode

number*

The status code to send in the Response to the HTTP Request that triggered the workflow.

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