write certificate material to one JSON file and also read from that

src/_cert.ts

@@ -59,15 +59,17 @@ export async function resolveCertificate(
 
   if (typeof options === "object" && options.reuse) {
     // Reuse previously autogenerated certificates if exists
-    const certExists = await pathExists(certificateDirectory + "cert.pem");
-    const keyExists = await pathExists(certificateDirectory + "cert-key.pem");
+    const certsExists = await pathExists(certificateDirectory + "certs.json");
 
-    if (certExists && keyExists) {
-      const cert = await fs.readFile(certificateDirectory + "cert.pem");
-      const key = await fs.readFile(certificateDirectory + "cert-key.pem");
+    if (certsExists) {
+      const cert = JSON.parse(
+        (await fs.readFile(certificateDirectory + "certs.json")).toString(
+          "utf8",
+        ),
+      );
       return {
-        cert: cert.toString("utf8"),
-        key: key.toString("utf8"),
+        cert: cert.cert,
+        key: cert.key,
       };
     }
   }
@@ -124,8 +126,6 @@ async function generateCertificates(
   const ca = await generateCACert(caOptions);
 
   await mkdir(resolve(certificateDirectory), { recursive: true });
-  await writeFile(resolve(certificateDirectory + "ca.pem"), ca.cert);
-  await writeFile(resolve(certificateDirectory + "ca-key.pem"), ca.key);
 
   const domains = Array.isArray(options.domains)
     ? options.domains
@@ -140,12 +140,22 @@ async function generateCertificates(
   });
 
   await writeFile(
-    resolve(certificateDirectory + "cert.pem"),
-    cert.cert + ca.cert,
+    resolve(certificateDirectory + "certs.json"),
+    JSON.stringify({
+      cert: cert.cert + ca.cert,
+      key: cert.key,
+      caCert: ca.cert,
+      caKey: ca.key,
+    }),
   );
-  await writeFile(resolve(certificateDirectory + "cert-key.pem"), cert.key);
 
-  return { ca, cert };
+  return {
+    ca,
+    cert: {
+      cert: cert.cert + ca.cert,
+      key: cert.key,
+    },
+  };
 }
 
 async function resolveCert(options: HTTPSOptions): Promise<Certificate> {