Skip to content
light theme Algorand Developer Portal dark theme Algorand Developer Portal Algorand Developer Portal

Configuration Constants

← Back to Testing

Description

Section titled “Description”

This example demonstrates the configuration constants available in the used to configure mock servers for testing Algorand client integrations. No mock server is required - this example just displays the constants.

Prerequisites

Section titled “Prerequisites”
  • No LocalNet required

Run This Example

Section titled “Run This Example”

From the repository root:

Terminal window
cd examples
npm run example testing/01-configuration-constants.ts

Code

Section titled “Code”

View source on GitHub

01-configuration-constants.ts
/**
 * Example: Configuration Constants
 *
 * This example demonstrates the configuration constants available in the
 * @algorandfoundation/algokit-utils/testing package. These constants are
 * used to configure mock servers for testing Algorand client integrations.
 *
 * No mock server is required - this example just displays the constants.
 *
 * Prerequisites:
 * - No LocalNet required
 */


import {
  type ClientType,
  DEFAULT_TOKEN,
  EXTERNAL_URL_ENV_VARS,
  MOCK_PORTS,
} from '@algorandfoundation/algokit-utils/testing'
import { printHeader, printInfo, printStep, printSuccess } from '../shared/utils.js'


async function main() {
  printHeader('Configuration Constants Example')


  // Step 1: DEFAULT_TOKEN constant
  printStep(1, 'DEFAULT_TOKEN - Authentication token for mock servers')
  printInfo(`Token value: "${DEFAULT_TOKEN}"`)
  printInfo(`Token length: ${DEFAULT_TOKEN.length} characters`)
  printInfo('Purpose: This token is used for authenticating requests to mock servers.')
  printInfo('         It matches the default token expected by algokit-polytest mock servers.')


  // Step 2: MOCK_PORTS constant
  printStep(2, 'MOCK_PORTS - Default port configurations for local mock servers')
  printInfo('Port configuration:')
  printInfo(`  - algod:   port ${MOCK_PORTS.algod.host}`)
  printInfo(`  - indexer: port ${MOCK_PORTS.indexer.host}`)
  printInfo(`  - kmd:     port ${MOCK_PORTS.kmd.host}`)
  printInfo('Purpose: These ports match the algokit-polytest defaults for local development.')
  printInfo('         Used when starting mock servers locally without environment variables.')


  // Step 3: EXTERNAL_URL_ENV_VARS mapping
  printStep(3, 'EXTERNAL_URL_ENV_VARS - Environment variable names for server URLs')
  printInfo('Environment variable mapping:')
  printInfo(`  - algod   -> ${EXTERNAL_URL_ENV_VARS.algod}`)
  printInfo(`  - indexer -> ${EXTERNAL_URL_ENV_VARS.indexer}`)
  printInfo(`  - kmd     -> ${EXTERNAL_URL_ENV_VARS.kmd}`)
  printInfo('Purpose: Set these environment variables to specify external mock server URLs.')
  printInfo('         The getMockServer() function reads these to connect to running servers.')


  // Step 4: ClientType union type
  printStep(4, 'ClientType - Union type for supported client types')
  const clientTypes: ClientType[] = ['algod', 'indexer', 'kmd']
  printInfo(`ClientType values: ${clientTypes.map((t) => `'${t}'`).join(' | ')}`)
  printInfo('Purpose: Type-safe way to specify which Algorand client type to use.')
  printInfo('         Used by getMockServer() and other testing utilities.')


  // Summary
  printStep(5, 'Summary - How these constants work together')
  printInfo('The mock server infrastructure works as follows:')
  printInfo('  1. Start mock servers externally (via CLI or GitHub Actions)')
  printInfo('  2. Set environment variables with server URLs:')
  printInfo(`     export ${EXTERNAL_URL_ENV_VARS.algod}=http://localhost:${MOCK_PORTS.algod.host}`)
  printInfo(`     export ${EXTERNAL_URL_ENV_VARS.indexer}=http://localhost:${MOCK_PORTS.indexer.host}`)
  printInfo(`     export ${EXTERNAL_URL_ENV_VARS.kmd}=http://localhost:${MOCK_PORTS.kmd.host}`)
  printInfo(`  3. Use DEFAULT_TOKEN ("${'a'.repeat(8)}...") for authentication`)
  printInfo('  4. Call getMockServer(clientType) to get a configured MockServer instance')


  printSuccess('Configuration constants example completed!')
}


main().catch(console.error)

Other examples in Testing

Section titled “Other examples in Testing”