diff --git a/translate/v3/translate_batch_translate_text.js b/translate/v3/translate_batch_translate_text.js
index ae904b842d7..4a81e988673 100644
--- a/translate/v3/translate_batch_translate_text.js
+++ b/translate/v3/translate_batch_translate_text.js
@@ -55,15 +55,18 @@ function main(
       },
     };
 
-    // Batch translate text using a long-running operation.
-    // You can wait for now, or get results later.
-    const [operation] = await translationClient.batchTranslateText(request);
+    try {
+      // Batch translate text using a long-running operation
+      const [operation] = await translationClient.batchTranslateText(request);
 
-    // Wait for operation to complete.
-    const [response] = await operation.promise();
+      // Wait for operation to complete.
+      const [response] = await operation.promise();
 
-    console.log(`Total Characters: ${response.totalCharacters}`);
-    console.log(`Translated Characters: ${response.translatedCharacters}`);
+      console.log(`Total Characters: ${response.totalCharacters}`);
+      console.log(`Translated Characters: ${response.translatedCharacters}`);
+    } catch (error) {
+      console.error(error.details);
+    }
   }
 
   batchTranslateText();
diff --git a/translate/v3/translate_batch_translate_text_with_glossary.js b/translate/v3/translate_batch_translate_text_with_glossary.js
index 2616ac9693c..e34589b2493 100644
--- a/translate/v3/translate_batch_translate_text_with_glossary.js
+++ b/translate/v3/translate_batch_translate_text_with_glossary.js
@@ -62,15 +62,19 @@ function main(
       },
     };
 
-    // Create a job whose results you can either wait for now, or get later
-    const [operation] = await client.batchTranslateText(request);
+    try {
+      // Create a job using a long-running operation
+      const [operation] = await client.batchTranslateText(request);
 
-    // Get a Promise representation of the final result of the job
-    const [response] = await operation.promise();
+      // Wait for the operation to complete
+      const [response] = await operation.promise();
 
-    // Display the translation for each input text provided
-    console.log(`Total Characters: ${response.totalCharacters}`);
-    console.log(`Translated Characters: ${response.translatedCharacters}`);
+      // Display the translation for each input text provided
+      console.log(`Total Characters: ${response.totalCharacters}`);
+      console.log(`Translated Characters: ${response.translatedCharacters}`);
+    } catch (error) {
+      console.error(error.details);
+    }
   }
 
   batchTranslateTextWithGlossary();
diff --git a/translate/v3/translate_batch_translate_text_with_glossary_and_model.js b/translate/v3/translate_batch_translate_text_with_glossary_and_model.js
index e72dc6184c0..68366162722 100644
--- a/translate/v3/translate_batch_translate_text_with_glossary_and_model.js
+++ b/translate/v3/translate_batch_translate_text_with_glossary_and_model.js
@@ -67,15 +67,19 @@ function main(
       },
     };
 
-    // Create a job whose results you can either wait for now, or get later
-    const [operation] = await client.batchTranslateText(request);
+    try {
+      // Create a job using a long-running operation
+      const [operation] = await client.batchTranslateText(request);
 
-    // Get a Promise representation of the final result of the job
-    const [response] = await operation.promise();
+      // Wait for operation to complete
+      const [response] = await operation.promise();
 
-    // Display the translation for each input text provided
-    console.log(`Total Characters: ${response.totalCharacters}`);
-    console.log(`Translated Characters: ${response.translatedCharacters}`);
+      // Display the translation for each input text provided
+      console.log(`Total Characters: ${response.totalCharacters}`);
+      console.log(`Translated Characters: ${response.translatedCharacters}`);
+    } catch (error) {
+      console.error(error.details);
+    }
   }
 
   batchTranslateTextWithGlossaryAndModel();
diff --git a/translate/v3/translate_batch_translate_text_with_model.js b/translate/v3/translate_batch_translate_text_with_model.js
index 4ec26b02f0a..884e9e9d601 100644
--- a/translate/v3/translate_batch_translate_text_with_model.js
+++ b/translate/v3/translate_batch_translate_text_with_model.js
@@ -60,15 +60,19 @@ function main(
       },
     };
 
-    // Create a job whose results you can either wait for now, or get later
-    const [operation] = await client.batchTranslateText(request);
+    try {
+      // Create a job using a long-running operation
+      const [operation] = await client.batchTranslateText(request);
 
-    // Get a Promise representation of the final result of the job
-    const [response] = await operation.promise();
+      // Wait for the operation to complete
+      const [response] = await operation.promise();
 
-    // Display the translation for each input text provided
-    console.log(`Total Characters: ${response.totalCharacters}`);
-    console.log(`Translated Characters: ${response.translatedCharacters}`);
+      // Display the translation for each input text provided
+      console.log(`Total Characters: ${response.totalCharacters}`);
+      console.log(`Translated Characters: ${response.translatedCharacters}`);
+    } catch (error) {
+      console.error(error.details);
+    }
   }
 
   batchTranslateTextWithModel();
diff --git a/translate/v3/translate_create_glossary.js b/translate/v3/translate_create_glossary.js
index c79bb8c8187..666634d287b 100644
--- a/translate/v3/translate_create_glossary.js
+++ b/translate/v3/translate_create_glossary.js
@@ -53,12 +53,11 @@ function main(
       glossary: glossary,
     };
 
-    // Create glossary using a long-running operation
-    // and wait for its completion
     try {
+      // Create glossary using a long-running operation
       const [operation] = await translationClient.createGlossary(request);
 
-      // Wait for operation to complete.
+      // Wait for the operation to complete
       await operation.promise();
 
       console.log(`Created glossary:`);
diff --git a/translate/v3/translate_delete_glossary.js b/translate/v3/translate_delete_glossary.js
index bfe2b7351a7..613256d5108 100644
--- a/translate/v3/translate_delete_glossary.js
+++ b/translate/v3/translate_delete_glossary.js
@@ -40,14 +40,17 @@ function main(
       name: `projects/${projectId}/locations/${location}/glossaries/${glossaryId}`,
     };
 
-    // Delete glossary using a long-running operation.
-    // You can wait for now, or get results later.
-    const [operation] = await translationClient.deleteGlossary(request);
+    try {
+      // Delete glossary using a long-running operation
+      const [operation] = await translationClient.deleteGlossary(request);
 
-    // Wait for operation to complete.
-    const [response] = await operation.promise();
+      // Wait for operation to complete.
+      const [response] = await operation.promise();
 
-    console.log(`Deleted glossary: ${response.name}`);
+      console.log(`Deleted glossary: ${response.name}`);
+    } catch (error) {
+      console.error(error.details);
+    }
   }
 
   deleteGlossary();
diff --git a/translate/v3/translate_detect_language.js b/translate/v3/translate_detect_language.js
index d0bf38223ab..1e588ef89b3 100644
--- a/translate/v3/translate_detect_language.js
+++ b/translate/v3/translate_detect_language.js
@@ -40,13 +40,17 @@ function main(
       content: text,
     };
 
-    // Run request
-    const [response] = await translationClient.detectLanguage(request);
-
-    console.log(`Detected Languages:`);
-    for (const language of response.languages) {
-      console.log(`Language Code: ${language.languageCode}`);
-      console.log(`Confidence: ${language.confidence}`);
+    try {
+      // Run request
+      const [response] = await translationClient.detectLanguage(request);
+
+      console.log(`Detected Languages:`);
+      for (const language of response.languages) {
+        console.log(`Language Code: ${language.languageCode}`);
+        console.log(`Confidence: ${language.confidence}`);
+      }
+    } catch (error) {
+      console.error(error.details);
     }
   }
 
diff --git a/translate/v3/translate_get_glossary.js b/translate/v3/translate_get_glossary.js
index 3486e402a66..7d030c1c7d6 100644
--- a/translate/v3/translate_get_glossary.js
+++ b/translate/v3/translate_get_glossary.js
@@ -40,10 +40,14 @@ function main(
       name: `projects/${projectId}/locations/${location}/glossaries/${glossaryId}`,
     };
 
-    // Get glossary
-    const [response] = await translationClient.getGlossary(request);
-
-    console.log(`Got glossary: ${response.name}`);
+    try {
+      // Get glossary
+      const [response] = await translationClient.getGlossary(request);
+
+      console.log(`Got glossary: ${response.name}`);
+    } catch (error) {
+      console.error(error.details);
+    }
   }
 
   getGlossary();
diff --git a/translate/v3/translate_get_supported_languages.js b/translate/v3/translate_get_supported_languages.js
index c02bfdb1146..ef26f9a86d7 100644
--- a/translate/v3/translate_get_supported_languages.js
+++ b/translate/v3/translate_get_supported_languages.js
@@ -34,18 +34,25 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
       parent: `projects/${projectId}/locations/${location}`,
     };
 
-    // Get supported languages
-    const [response] = await translationClient.getSupportedLanguages(request);
-
-    for (const language of response.languages) {
-      // Supported language code, generally consisting of its ISO 639-1 identifier, for
-      // example, 'en', 'ja'. In certain cases, BCP-47 codes including language and
-      // region identifiers are returned (for example, 'zh-TW' and 'zh-CN')
-      console.log(`Language - Language Code: ${language.languageCode}`);
-      // Can be used as source language.
-      console.log(`Language - Support Source: ${language.supportSource}`);
-      // Can be used as target language.
-      console.log(`Language - Support Target: ${language.supportTarget}`);
+    try {
+      // Get supported languages
+      const [response] = await translationClient.getSupportedLanguages(request);
+
+      for (const language of response.languages) {
+        // Supported language code, generally consisting of its ISO 639-1 identifier, for
+        // example, 'en', 'ja'. In certain cases, BCP-47 codes including language and
+        // region identifiers are returned (for example, 'zh-TW' and 'zh-CN')
+        console.log(`Language - Language Code: ${language.languageCode}`);
+        // Human readable name of the language localized in the display language specified
+        // in the request.
+        console.log(`Language - Display Name: ${language.displayName}`);
+        // Can be used as source language.
+        console.log(`Language - Support Source: ${language.supportSource}`);
+        // Can be used as target language.
+        console.log(`Language - Support Target: ${language.supportTarget}`);
+      }
+    } catch (error) {
+      console.error(error.details);
     }
   }
 
diff --git a/translate/v3/translate_get_supported_languages_for_target.js b/translate/v3/translate_get_supported_languages_for_target.js
index 5ea4b9196cc..a44165c531d 100644
--- a/translate/v3/translate_get_supported_languages_for_target.js
+++ b/translate/v3/translate_get_supported_languages_for_target.js
@@ -35,21 +35,25 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
       displayLanguageCode: 'en',
     };
 
-    // Get supported languages
-    const [response] = await translationClient.getSupportedLanguages(request);
-
-    for (const language of response.languages) {
-      // Supported language code, generally consisting of its ISO 639-1 identifier, for
-      // example, 'en', 'ja'. In certain cases, BCP-47 codes including language and
-      // region identifiers are returned (for example, 'zh-TW' and 'zh-CN')
-      console.log(`Language - Language Code: ${language.languageCode}`);
-      // Human readable name of the language localized in the display language specified
-      // in the request.
-      console.log(`Language - Display Name: ${language.displayName}`);
-      // Can be used as source language.
-      console.log(`Language - Support Source: ${language.supportSource}`);
-      // Can be used as target language.
-      console.log(`Language - Support Target: ${language.supportTarget}`);
+    try {
+      // Get supported languages
+      const [response] = await translationClient.getSupportedLanguages(request);
+
+      for (const language of response.languages) {
+        // Supported language code, generally consisting of its ISO 639-1 identifier, for
+        // example, 'en', 'ja'. In certain cases, BCP-47 codes including language and
+        // region identifiers are returned (for example, 'zh-TW' and 'zh-CN')
+        console.log(`Language - Language Code: ${language.languageCode}`);
+        // Human readable name of the language localized in the display language specified
+        // in the request.
+        console.log(`Language - Display Name: ${language.displayName}`);
+        // Can be used as source language.
+        console.log(`Language - Support Source: ${language.supportSource}`);
+        // Can be used as target language.
+        console.log(`Language - Support Target: ${language.supportTarget}`);
+      }
+    } catch (error) {
+      console.error(error.details);
     }
   }
 
diff --git a/translate/v3/translate_list_codes.js b/translate/v3/translate_list_codes.js
index 37c4c732100..56fa1dc9c45 100644
--- a/translate/v3/translate_list_codes.js
+++ b/translate/v3/translate_list_codes.js
@@ -34,12 +34,16 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
       parent: `projects/${projectId}/locations/${location}`,
     };
 
-    // Run request
-    const [response] = await translationClient.getSupportedLanguages(request);
-
-    console.log(`Supported languages:`);
-    for (const language of response.languages) {
-      console.log(`Language Code: ${language.languageCode}`);
+    try {
+      // Run request
+      const [response] = await translationClient.getSupportedLanguages(request);
+
+      console.log(`Supported languages:`);
+      for (const language of response.languages) {
+        console.log(`Language Code: ${language.languageCode}`);
+      }
+    } catch (error) {
+      console.error(error.details);
     }
   }
 
diff --git a/translate/v3/translate_list_glossary.js b/translate/v3/translate_list_glossary.js
index f96eb4a1325..96485eaf696 100644
--- a/translate/v3/translate_list_glossary.js
+++ b/translate/v3/translate_list_glossary.js
@@ -34,16 +34,20 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'us-central1') {
       parent: `projects/${projectId}/locations/${location}`,
     };
 
-    // Run request
-    const [response] = await translationClient.listGlossaries(request);
-
-    for (const glossary of response) {
-      console.log(`Name: ${glossary.name}`);
-      console.log(`Entry count: ${glossary.entryCount}`);
-      console.log(`Input uri: ${glossary.inputConfig.gcsSource.inputUri}`);
-      for (const languageCode of glossary.languageCodesSet.languageCodes) {
-        console.log(`Language code: ${languageCode}`);
+    try {
+      // Run request
+      const [response] = await translationClient.listGlossaries(request);
+
+      for (const glossary of response) {
+        console.log(`Name: ${glossary.name}`);
+        console.log(`Entry count: ${glossary.entryCount}`);
+        console.log(`Input uri: ${glossary.inputConfig.gcsSource.inputUri}`);
+        for (const languageCode of glossary.languageCodesSet.languageCodes) {
+          console.log(`Language code: ${languageCode}`);
+        }
       }
+    } catch (error) {
+      console.error(error.details);
     }
   }
 
diff --git a/translate/v3/translate_list_language_names.js b/translate/v3/translate_list_language_names.js
index 92aa9ece028..3ea6f7d24e6 100644
--- a/translate/v3/translate_list_language_names.js
+++ b/translate/v3/translate_list_language_names.js
@@ -35,13 +35,17 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
       displayLanguageCode: 'fr',
     };
 
-    // Run request
-    const [response] = await translationClient.getSupportedLanguages(request);
-
-    console.log(`Supported languages:`);
-    for (const language of response.languages) {
-      console.log(`Language Code: ${language.languageCode}`);
-      console.log(`Display Name: ${language.displayName}`);
+    try {
+      // Run request
+      const [response] = await translationClient.getSupportedLanguages(request);
+
+      console.log(`Supported languages:`);
+      for (const language of response.languages) {
+        console.log(`Language Code: ${language.languageCode}`);
+        console.log(`Display Name: ${language.displayName}`);
+      }
+    } catch (error) {
+      console.error(error.details);
     }
   }
 
diff --git a/translate/v3/translate_translate_text.js b/translate/v3/translate_translate_text.js
index 51a1a750a42..36d78e0224d 100644
--- a/translate/v3/translate_translate_text.js
+++ b/translate/v3/translate_translate_text.js
@@ -42,11 +42,15 @@ function main(
       targetLanguageCode: 'sr-Latn',
     };
 
-    // Run request
-    const [response] = await translationClient.translateText(request);
-
-    for (const translation of response.translations) {
-      console.log(`Translation: ${translation.translatedText}`);
+    try {
+      // Run request
+      const [response] = await translationClient.translateText(request);
+
+      for (const translation of response.translations) {
+        console.log(`Translation: ${translation.translatedText}`);
+      }
+    } catch (error) {
+      console.error(error.details);
     }
   }
 
diff --git a/translate/v3/translate_translate_text_with_glossary.js b/translate/v3/translate_translate_text_with_glossary.js
index e40c6d4c507..3f7de057150 100644
--- a/translate/v3/translate_translate_text_with_glossary.js
+++ b/translate/v3/translate_translate_text_with_glossary.js
@@ -48,11 +48,15 @@ function main(
       glossaryConfig: glossaryConfig,
     };
 
-    // Run request
-    const [response] = await translationClient.translateText(request);
+    try {
+      // Run request
+      const [response] = await translationClient.translateText(request);
 
-    for (const translation of response.glossaryTranslations) {
-      console.log(`Translation: ${translation.translatedText}`);
+      for (const translation of response.glossaryTranslations) {
+        console.log(`Translation: ${translation.translatedText}`);
+      }
+    } catch (error) {
+      console.error(error.details);
     }
   }
 
diff --git a/translate/v3/translate_translate_text_with_glossary_and_model.js b/translate/v3/translate_translate_text_with_glossary_and_model.js
index a09432ac1eb..bbfb617dbd8 100644
--- a/translate/v3/translate_translate_text_with_glossary_and_model.js
+++ b/translate/v3/translate_translate_text_with_glossary_and_model.js
@@ -51,11 +51,15 @@ function main(
       model: `projects/${projectId}/locations/${location}/models/${modelId}`,
     };
 
-    // Run request
-    const [response] = await translationClient.translateText(request);
+    try {
+      // Run request
+      const [response] = await translationClient.translateText(request);
 
-    for (const translation of response.glossaryTranslations) {
-      console.log(`Translation: ${translation.translatedText}`);
+      for (const translation of response.glossaryTranslations) {
+        console.log(`Translation: ${translation.translatedText}`);
+      }
+    } catch (error) {
+      console.error(error.details);
     }
   }
 
diff --git a/translate/v3/translate_translate_text_with_model.js b/translate/v3/translate_translate_text_with_model.js
index 105c112b61a..8dd52bb30ea 100644
--- a/translate/v3/translate_translate_text_with_model.js
+++ b/translate/v3/translate_translate_text_with_model.js
@@ -45,11 +45,15 @@ function main(
       model: `projects/${projectId}/locations/${location}/models/${modelId}`,
     };
 
-    // Run request
-    const [response] = await translationClient.translateText(request);
+    try {
+      // Run request
+      const [response] = await translationClient.translateText(request);
 
-    for (const translation of response.translations) {
-      console.log(`Translated Content: ${translation.translatedText}`);
+      for (const translation of response.translations) {
+        console.log(`Translated Content: ${translation.translatedText}`);
+      }
+    } catch (error) {
+      console.error(error.details);
     }
   }