title: Parameters

# Parameters Module

Version 0.10.0

Overview

Methods for getting initialization parameters for an app cold launch.

OpenRPC

Firebolt APIs are maintained in the rdkcentral/firebolt-core-sdk GitHub repository.

You can see this API in the parameters.json OpenRPC JSON-Schema document.

Table of Contents

• Overview

• OpenRPC

• Usage

• Methods

  • initialization

• Schemas

  • AppInitialization

Usage

To use the Parameters module, you can import it into your project from the Firebolt SDK:

import { Parameters } from '@firebolt-js/sdk'

Methods

initialization

Returns any initialization parameters for the app, e.g. initialial NavigationIntent.

function initialization(): Promise<AppInitialization>

Promise resolution:

Examples

Default Example

JavaScript:

import { Parameters } from '@firebolt-js/sdk'

Parameters.initialization()
    .then(init => {
        console.log(init)
    })

Value of init:

{
  "lmt": 0,
  "us_privacy": "1-Y-",
  "discovery": {
    "navigateTo": {
      "action": "entity",
      "data": {
        "entityId": "abc",
        "entityType": "program",
        "programType": "movie"
      },
      "context": {
        "source": "voice"
      }
    }
  }
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "parameters.initialization",
  "params": {}
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "lmt": 0,
    "us_privacy": "1-Y-",
    "discovery": {
      "navigateTo": {
        "action": "entity",
        "data": {
          "entityId": "abc",
          "entityType": "program",
          "programType": "movie"
        },
        "context": {
          "source": "voice"
        }
      }
    }
  }
}

Schemas

AppInitialization

type AppInitialization = {
  us_privacy?: string                  // The IAB US Privacy string.
  lmt?: number                         // The IAB limit ad tracking opt out value.
  discovery?: {
    navigateTo?: NavigationIntent      // A Firebolt compliant representation of a user intention to navigate to a specific place in an app.
  }
  secondScreen?: {
    launchRequest?: SecondScreenEvent  // An a message notification from a second screen device
  }
}

See also:

• NavigationIntent
• SecondScreenEvent