GetBlobMethod

azureUtil.blob(name)

The azure-config-util object instance presents a blob(name) method that returns a promise, that will resolve to an azure-storage-simple blob instance.

This method uses storage(...) to establish an azure-storage-simple connection wrapper.

Example

Table Values

Section	Key	JsonValue
blob	somecontainer	{"storage":"account", "name": "somecontainername"}

• The shown "name" field in the JsonValue is optional when it matches the Key.

JsonValue

• storage - specifies the named storage account to use (see storage(...))
• name - the name of the storage queue to create/use
• options - object to use with the underlying createQueueIfNotExists
  • publicAccessLevel: string, enumeration value
    • default - Private
    • "container" - blobs and container attributes/queries are public
    • "blob" - blobs themselves are public

Code

// when there's no matching Key, or no "storage" is specified
//    under the covers: azureUtil.storage().blob('unspecifiedcontainer',options);
let someUnspecifiedContainer = await azureUtil.blob('unspecifiedcontainer',options);

// when there is a matching key
//    under the covers: azureUtil.storage('account').blob('somecontainername');
let blob = await azureUtil.blob('somecontainer');



// ### write(path,[options],data) ### 

// application/octet-stream (default)
let result = await blob.write('some/path/file.ext', someBuffer);

// text/plain, charset=UTF-8
result = await blob.write('some/path/file.txt', someString);

// application/json
result = await blob.write('some/path/file.json', someObjectOrArray);

// specified type
var result = await blob.write(
  'some/path/image.png'
  ,{
    contentType: 'image/png'
    //,contentEncoding: 'gzip' // specify encoding if you 'gzip' or 'deflate' your content 
  }
  ,imageBuffer
);


// ### read(path,[options]) => Buffer ### 
var myBuffer = await blob.read('some/path/file.txt');
var myText = myBuffer.toString(); //decode from utf8 / default 
...
var myBuffer = await blob.read('some/path/file.json');
var myObj = JSON.parse(myBuffer.toString()); //decode stored json above.. 
 
 
// ### delete(path,[options]) 
await blob.delete('some/path/file.ext');