Created a new API exclusive for metadata information

[bexsoft]

What does this do?

Implements a new exclusive API to retrieve metadata information without requesting the full list of objects from a bucket

How does it look?

Signed-off-by: Benjamin Perez [email protected]

[prakashsvmx]

@bexsoft
A minor observations:

1. sometimes the api is called without prefix .

Steps to replicate:
Click on Buckets -> Browse -> Click on an Object -> Click on Buckets again -> Click on Browse again on a bucket
Observe the network tab.

2. I think we need to decodeURIComponent of the metadata value. Because non ascii characters can be sent as url encoded which needs to be rendered in UI accordingly. ( Kindly correct me if i am missing something here)

//ObjectDetails.tsx : Line 172 
 const renderItem = Array.isArray(
                                metadata[element]
                              )
                                ? metadata[element]
                                    .map(decodeURIComponent)
                                    .join(", ")
                                : decodeURIComponent(metadata[element]);

Sample code For testing with minio-js

// Upload a stream
var file = '/home/Pictures/error.png'
var fileStream = Fs.createReadStream(file)
Fs.stat(file, function(e, stat) {
  if (e) {
    return console.log(e)
  }
  s3Client.putObject('test-bucket-2', 'test-meta-data.png', fileStream, stat.size, {
    "ascii": "AMAZONS3",
    "ascii1": "AMAZONS3",
    "nonascii": encodeURIComponent("ÄMÄZÕÑ S3")
  }, function(e) {
    if (e) {
      return console.log(e)
    }
    console.log("Successfully uploaded the stream")
  })
})

[bexsoft]

@bexsoft A minor observations:

1. sometimes the api is called without prefix .

Steps to replicate: Click on Buckets -> Browse -> Click on an Object -> Click on Buckets again -> Click on Browse again on a bucket Observe the network tab.

2. I think we need to decodeURIComponent of the metadata value. Because non ascii characters can be sent as url encoded which needs to be rendered in UI accordingly. ( Kindly correct me if i am missing something here)

//ObjectDetails.tsx : Line 172 
 const renderItem = Array.isArray(
                                metadata[element]
                              )
                                ? metadata[element]
                                    .map(decodeURIComponent)
                                    .join(", ")
                                : decodeURIComponent(metadata[element]);

Sample code For testing with minio-js

// Upload a stream
var file = '/home/Pictures/error.png'
var fileStream = Fs.createReadStream(file)
Fs.stat(file, function(e, stat) {
  if (e) {
    return console.log(e)
  }
  s3Client.putObject('test-bucket-2', 'test-meta-data.png', fileStream, stat.size, {
    "ascii": "AMAZONS3",
    "ascii1": "AMAZONS3",
    "nonascii": encodeURIComponent("ÄMÄZÕÑ S3")
  }, function(e) {
    if (e) {
      return console.log(e)
    }
    console.log("Successfully uploaded the stream")
  })
})

Good catch @prakashsvmx! Thank you!

Committed suggestions

[prakashsvmx]

Tested. LGTM. 👍