fix: Report status for empty db (#503)

* Include DID stats only when available

* keymaster waits for gatekeeper to sync

Author: macterra

services/gatekeeper/server/src/gatekeeper-api.js

@@ -295,29 +295,30 @@ async function reportStatus() {
     console.log(`DID Database (${config.db}):`);
     console.log(`  Total: ${status.dids.total}`);
 
-    console.log(`  By type:`);
-    console.log(`    Agents: ${status.dids.byType.agents}`);
-    console.log(`    Assets: ${status.dids.byType.assets}`);
-    console.log(`    Confirmed: ${status.dids.byType.confirmed}`);
-    console.log(`    Unconfirmed: ${status.dids.byType.unconfirmed}`);
-    console.log(`    Ephemeral: ${status.dids.byType.ephemeral}`);
-    console.log(`    Invalid: ${status.dids.byType.invalid}`);
-
-    console.log(`  By registry:`);
-    const registries = Object.keys(status.dids.byRegistry).sort();
-    for (let registry of registries) {
-        console.log(`    ${registry}: ${status.dids.byRegistry[registry]}`);
-    }
+    if (status.dids.total > 0) {
+        console.log(`  By type:`);
+        console.log(`    Agents: ${status.dids.byType.agents}`);
+        console.log(`    Assets: ${status.dids.byType.assets}`);
+        console.log(`    Confirmed: ${status.dids.byType.confirmed}`);
+        console.log(`    Unconfirmed: ${status.dids.byType.unconfirmed}`);
+        console.log(`    Ephemeral: ${status.dids.byType.ephemeral}`);
+        console.log(`    Invalid: ${status.dids.byType.invalid}`);
+
+        console.log(`  By registry:`);
+        const registries = Object.keys(status.dids.byRegistry).sort();
+        for (let registry of registries) {
+            console.log(`    ${registry}: ${status.dids.byRegistry[registry]}`);
+        }
 
-    console.log(`  By version:`);
-    let count = 0;
-    for (let version of [1, 2, 3, 4, 5]) {
-        const num = status.dids.byVersion[version];
-        console.log(`    ${version}: ${num}`);
-        count += num;
+        console.log(`  By version:`);
+        let count = 0;
+        for (let version of [1, 2, 3, 4, 5]) {
+            const num = status.dids.byVersion[version] || 0;
+            console.log(`    ${version}: ${num}`);
+            count += num;
+        }
+        console.log(`    6+: ${status.dids.total - count}`);
     }
-    console.log(`    6+: ${status.dids.total - count}`);
-
 
     console.log(`Memory Usage Report:`);
     console.log(`  RSS: ${formatBytes(status.memoryUsage.rss)} (Resident Set Size - total memory allocated for the process)`);

services/keymaster/server/src/keymaster-api.js

@@ -681,6 +681,31 @@ process.on('unhandledRejection', (reason, promise) => {
     //console.error('Unhandled rejection caught');
 });
 
+async function waitForCurrentId() {
+    let isReady = false;
+    const currentId = await keymaster.getCurrentId();
+
+    if (!currentId) {
+        return;
+    }
+
+    while (!isReady) {
+        try {
+            console.log(`Resolving current ID: ${currentId}`);
+            const doc = await keymaster.resolveDID(currentId);
+            console.log(JSON.stringify(doc, null, 4));
+            isReady = true;
+        }
+        catch {
+            console.log(`Waiting for gatekeeper to sync...`);
+        }
+
+        if (!isReady) {
+            await new Promise(resolve => setTimeout(resolve, 10000));
+        }
+    }
+}
+
 const port = config.keymasterPort;
 
 app.listen(port, async () => {
@@ -707,17 +732,6 @@ app.listen(port, async () => {
     await keymaster.start({ gatekeeper, wallet, cipher });
     console.log(`keymaster server running on port ${port}`);
 
-    try {
-        const currentId = await keymaster.getCurrentId();
-
-        if (currentId) {
-            console.log(`current ID: ${currentId}`);
-            const doc = await keymaster.resolveId();
-            console.log(JSON.stringify(doc, null, 4));
-        }
-        serverReady = true;
-    }
-    catch (error) {
-        console.log(error);
-    }
+    await waitForCurrentId();
+    serverReady = true;
 });