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How can I console.log() a Blob object?


How can I console.log() a Blob object?

By : Lucy Sotty
Date : November 22 2020, 01:01 AM
may help you . Basic example on using a FileReader to look at the content in a blob
code :
var html= ['<a id="anchor">Hello World</a>'];
var myBlob = new Blob(html, { type: 'text/xml'});
var myReader = new FileReader();
myReader.onload = function(event){
    console.log(JSON.stringify(myReader.result));
};
myReader.readAsText(myBlob);


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How can a blob image be uploaded from REST console( such as Google chrome's POSTMAN ) to azure blob storage?

How can a blob image be uploaded from REST console( such as Google chrome's POSTMAN ) to azure blob storage?


By : Staelen29
Date : March 29 2020, 07:55 AM
help you fix your problem Using just a Shared Access Signature on the target container/blob (where you want the image to be copied), as of today it is not possible to copy an image by using image URL.
What you have to do is create an authorization signature (following the procedure listed here) and then use Copy Blob REST API functionality. Once you properly create authorization header, then you will be able to copy the image using a URL provided the image URL is publicly accessible.
Canvas to blob returns empty blob object

Canvas to blob returns empty blob object


By : xiaoming
Date : March 29 2020, 07:55 AM
I wish this help you Blob Object's type and size properties are not enumerable, hence, JSON.stringify will ignore their values and return only a string representing an empty object : "{}".
code :
var blob = new Blob(['hello world'], {type:'text/plain'});

console.log(JSON.stringify(blob));
console.log(blob);
I am getting blob errors in my console, how can i track them down, so I can fix them?

I am getting blob errors in my console, how can i track them down, so I can fix them?


By : user1377808
Date : March 29 2020, 07:55 AM
Hope that helps Try disabling AdBlock: chrome://extensions/. There are other posts on this issue so although your question may be a duplicate, there's so much cruft on the others answers that this is worth preserving.
Convert blob to string to to create a json object and then change the string back to blob

Convert blob to string to to create a json object and then change the string back to blob


By : Paul Franz
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , My requirement is to convert the blob in a database field to string to create a json object. I have achieved that. , Here's your problem:
code :
byte[] stringAsBytes = org.apache.commons.codec.binary.StringUtils.getBytesUtf8(pdfBase64String);
I try to retrieve blob data from db and export it as a file, but the blob object is always lost passing it from ejb tier

I try to retrieve blob data from db and export it as a file, but the blob object is always lost passing it from ejb tier


By : Karthik Shankar
Date : March 29 2020, 07:55 AM
I hope this helps you . this has been a problem for me before.
Try to do it in the way mentioned in this blog and it may help http://hansonchar.blogspot.com/2005/06/oracle-blob-mapped-to-byte-in.html
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