fix: warn provider message (#208)

package.json

@@ -13,7 +13,7 @@
     "clean": "rm -rf dist/",
     "commit": "git-cz",
     "commit:retry": "npm run commit -- --retry",
-    "test": "jest",
+    "test": "NODE_OPTIONS=--max-old-space-size=2048 jest",
     "test:watch": "jest --watch",
     "lint": "eslint . --ext .ts --max-warnings 0",
     "lint:fix": "npm run lint -- --fix",

src/common/messages.ts

@@ -0,0 +1 @@
+export const warnProvider = `You are falling back to oa-verify default configuration, which is not suitable for production environment. It is highly recommended that you configure and provide your own API key. Refer to https://github.com/Open-Attestation/oa-verify#provider`;

src/common/utils.ts

@@ -19,6 +19,7 @@ import {
   OpenAttestationEthereumDocumentStoreStatusCode,
   OpenAttestationEthereumTokenRegistryStatusCode,
 } from "../types/error";
+import { warnProvider } from "../common/messages";
 
 export const getDefaultProvider = (options: VerificationBuilderOptionsWithNetwork): providers.Provider => {
   const network = options.network || process.env.PROVIDER_NETWORK || "homestead";
@@ -64,10 +65,7 @@ export const generateProvider = (options?: ProviderDetails): providers.Provider
   const url = options?.url || process.env.PROVIDER_ENDPOINT_URL || "";
   const apiKey =
     options?.apiKey || (provider === "infura" && process.env.INFURA_API_KEY) || process.env.PROVIDER_API_KEY || "";
-  !apiKey &&
-    console.warn(
-      "You are using oa-verify default configuration for provider, which is not suitable for production environment. Please make sure that you configured the library correctly."
-    );
+  !apiKey && console.warn(warnProvider);
 
   if (!!options && Object.keys(options).length === 1 && url) {
     return new providers.JsonRpcProvider(url);

src/verifiers/verificationBuilder.ts

@@ -7,6 +7,7 @@ import {
   DocumentsToVerify,
 } from "../types/core";
 import { getProvider } from "../common/utils";
+import { warnProvider } from "../common/messages";
 
 // keeping the following code for posterity. If we want the function below to return better types, we can use the following
 // type PromiseValue<T> = T extends Promise<infer U> ? U : never;
@@ -29,9 +30,7 @@ export const verificationBuilder = <T extends Verifier<any>>(
     !process.env.PROVIDER_API_KEY
   ) {
     displayWarning = false;
-    console.warn(
-      "You are using oa-verify default configuration, which is not suitable for production environment. Please make sure that you configured the library correctly."
-    );
+    console.warn(warnProvider);
   }
   const verifierOptions: VerifierOptions = {
     provider: getProvider(builderOptions),