Upload a file without authentication

  /** 
 * TODO(developer): Uncomment the following lines before running the sample. 
 */ 
 // The ID of your GCS bucket 
 // const bucketName = 'your-unique-bucket-name'; 
 // The contents that you want to upload 
 // const contents = 'these are my contents'; 
 // The new ID for your GCS file 
 // const destFileName = 'your-new-file-name'; 
 // Imports the Google Cloud Node.js client library 
 const 
  
 { 
 Storage 
 } 
  
 = 
  
 require 
 ( 
 ' @google-cloud/storage 
' 
 ); 
 // Creates a client 
 const 
  
 storage 
  
 = 
  
 new 
  
 Storage 
 (); 
 async 
  
 function 
  
 uploadWithoutAuthentication 
 () 
  
 { 
  
 const 
  
 file 
  
 = 
  
 storage 
 . 
 bucket 
 ( 
 bucketName 
 ). 
 file 
 ( 
 destFileName 
 ); 
  
 // Returns an authenticated endpoint to which 
  
 // you can make requests without credentials. 
  
 const 
  
 [ 
 location 
 ] 
  
 = 
  
 await 
  
 file 
 . 
  createResumableUpload 
 
 (); 
  
 //auth required 
  
 const 
  
 options 
  
 = 
  
 { 
  
 uri 
 : 
  
 location 
 , 
  
 resumable 
 : 
  
 true 
 , 
  
 validation 
 : 
  
 false 
 , 
  
 // Optional: 
  
 // Set a generation-match precondition to avoid potential race conditions 
  
 // and data corruptions. The request to upload is aborted if the object's 
  
 // generation number does not match your precondition. For a destination 
  
 // object that does not yet exist, set the ifGenerationMatch precondition to 0 
  
 // If the destination object already exists in your bucket, set instead a 
  
 // generation-match precondition using its generation number. 
  
 preconditionOpts 
 : 
  
 { 
 ifGenerationMatch 
 : 
  
 generationMatchPrecondition 
 }, 
  
 }; 
  
 // Passes the location to file.save so you don't need to 
  
 // authenticate this call 
  
 await 
  
 file 
 . 
  save 
 
 ( 
 contents 
 , 
  
 options 
 ); 
  
 console 
 . 
 log 
 ( 
 ` 
 ${ 
 destFileName 
 } 
 uploaded to 
 ${ 
 bucketName 
 } 
 ` 
 ); 
 } 
 uploadWithoutAuthentication 
 (). 
 catch 
 ( 
 console 
 . 
 error 
 );