fix: created mpesa config example (#5)

Co-authored-by: Amos Machora <[email protected]>

README.md

@@ -41,3 +41,11 @@ Check out our [Next.js deployment documentation](https://nextjs.org/docs/deploym
 touch .env
 cp .env.example .env
 ```
+
+## mpesa configuration
+
+```
+touch mpesa-config.json
+cp mpesa-config-example.json mpesa-config.json
+
+```

config/env.ts

@@ -18,7 +18,7 @@ export const MPESA_APP_BASE_URL = assertValue(
   "Missing environment variable: MPESA_APP_BASE_URL"
 );
 
-function assertValue<T>(v: T | undefined, errorMessage: string): T {
+export function assertValue<T>(v: T | undefined, errorMessage: string): T {
   if (v === undefined) {
     throw new Error(errorMessage);
   }

config/mpesa-config.ts

@@ -1,4 +1,5 @@
 import configData from "../mpesa-config.json";
+import { assertValue } from "./env";
 
 export type MPESA_CONFIG = {
   MPESA_BUSINESS_SHORT_CODE: string;
@@ -8,7 +9,10 @@ export type MPESA_CONFIG = {
 };
 
 // HASHMAP
-const mpesaConfigMap: { [key: string]: MPESA_CONFIG } = configData;
+const mpesaConfigMap: { [key: string]: MPESA_CONFIG } = assertValue(
+  configData,
+  "MISSING MPESA CONFIGURATION FILE"
+);
 
 export const getHealthFacilityMpesaConfig = (
   mfl: string

mpesa-config-example.json

@@ -0,0 +1,8 @@
+{
+  "mflCode": {
+    "MPESA_BUSINESS_SHORT_CODE": "",
+    "MPESA_CONSUMER_KEY": "",
+    "MPESA_CONSUMER_SECRET": "",
+    "MPESA_API_PASS_KEY": ""
+  }
+}