Move serviceType constant into constants.js.

Author: dlongley

lib/constants.js

@@ -1,7 +1,8 @@
 /*!
  * Copyright (c) 2024 Digital Bazaar, Inc. All rights reserved.
  */
-
 // max list size is MAX_BLOCK_COUNT * MAX_BLOCK_SIZE = 131072
 export const MAX_BLOCK_COUNT = 4096;
 export const MAX_BLOCK_SIZE = 32;
+
+export const serviceType = 'vc-issuer';

lib/helpers.js

@@ -13,11 +13,10 @@ import {getCredentialStatus} from '@digitalbazaar/vc-status-list';
 import {getSuiteParams} from './suites.js';
 import {httpsAgent} from '@bedrock/https-agent';
 import {serviceAgents} from '@bedrock/service-agent';
+import {serviceType} from './constants.js';
 
 const {util: {BedrockError}} = bedrock;
 
-export const serviceType = 'vc-issuer';
-
 export async function generateLocalId() {
   // 128-bit random number, base58 multibase + multihash encoded
   return generateId({

lib/issuer.js

@@ -4,14 +4,15 @@
 import * as bedrock from '@bedrock/core';
 import * as slcs from './slcs.js';
 import {
-  issue as _issue, getCredentialStatusInfo, getIssuerAndSuite, serviceType
+  issue as _issue, getCredentialStatusInfo, getIssuerAndSuite
 } from './helpers.js';
 import assert from 'assert-plus';
 import {createDocumentLoader} from './documentLoader.js';
 import {CredentialStatusIssuer} from './CredentialStatusIssuer.js';
 import {CredentialStatusWriter} from './CredentialStatusWriter.js';
 import {decodeList} from '@digitalbazaar/vc-status-list';
 import {documentStores} from '@bedrock/service-agent';
+import {serviceType} from './constants.js';
 
 const {util: {BedrockError}} = bedrock;