discovery

Overview

Namespace containing discovery utilities

Functions

getDiscoveryService

Creates and configures a discovery service object used for wallet authentication. This function combines the provided service configuration with discovery-related settings from the FCL configuration to create a complete service definition for wallet authentication flows.

Import

You can import the entire package and access the function:

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import * as fcl from "@onflow/fcl-core"

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fcl.discovery.getDiscoveryService(service)

Or import the namespace directly:

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import { discovery } from "@onflow/fcl-core"

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discovery.getDiscoveryService(service)

Usage

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// Get discovery service with default configuration

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const discoveryService = await getDiscoveryService()

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console.log(discoveryService.endpoint) // Configured discovery endpoint

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// Override discovery service endpoint

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const customService = await getDiscoveryService({

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endpoint: "https://wallet.example.com/authn",

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method: "HTTP/POST"

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})

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// Use with custom wallet service

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const walletService = await getDiscoveryService({

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endpoint: "https://my-wallet.com/fcl",

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provider: {

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name: "My Wallet",

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icon: "https://my-wallet.com/icon.png"

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}

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})

Parameters

service (optional)

• Type: Partial<Service>
• Description: Optional partial service configuration to override defaults

Returns

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export interface DiscoveryService extends Service {

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discoveryAuthnInclude: string[]

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discoveryAuthnExclude: string[]

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discoveryFeaturesSuggested: string[]

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}

makeDiscoveryServices

Creates an array of discovery services by combining extension services from the window object with registered services from the service registry. This is used internally by FCL to gather all available wallet and authentication services.

Import

You can import the entire package and access the function:

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import * as fcl from "@onflow/fcl-core"

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fcl.discovery.makeDiscoveryServices()

Or import the namespace directly:

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import { discovery } from "@onflow/fcl-core"

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discovery.makeDiscoveryServices()

Usage

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// Get all available discovery services

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const services = await makeDiscoveryServices()

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console.log(services.length) // Number of available services

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services.forEach(service => {

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console.log(`Service: ${service.provider?.name}, Type: ${service.type}`)

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})

Returns

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Promise<Service[]>

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