b2_list_file_versions
Lists all of the versions of all of the files contained in one bucket, in alphabetical order by file name, and by reverse of date/time uploaded for versions of files with the same name.
This call returns at most 1000 file names per transaction, but it can be called repeatedly to scan through all of the file names in a bucket. Each time you call, it returns a "nextFileName" and "nextFileId" that can be used as the starting point for the next call.
This call supports the same options for matching a file name prefix
and for grouping files into folders as
b2_list_file_names
.
See that page for more details.
The application key you authorized with may restrict access to some files.
See b2_list_file_names
for details.
Request
Request HTTP Headers
Authorization
required
The account authorization token returned by b2_authorize_account
.
The token must have the listFiles
capability.
Request HTTP Message Body Parameters
bucketId
required
The bucket to look for file names in.
startFileName
optional
The first file name to return.
If there are no files with
this name, the first version of the file with the first
name after the given name will be the first in the list.
If startFileId is also specified, the name-and-id pair is
the starting point. If there is a file with the given
name and ID, it will be first in the list. Otherwise, the
first file version that comes after the given name and ID
will be first in the list.
startFileId
optional
The first file ID to return. startFileName must also be provided if startFileId is specified. (See startFileName.)
maxFileCount
optional
The maximum number of files to return from this call. The
default value is 100, and the maximum is 10000. Passing
in 0 means to use the default of 100.
NOTE:
b2_list_file_versions
is a Class C
transaction
(see Pricing).
The maximum number of files returned per transaction is
1000. If you set maxFileCount to more than 1000 and more
than 1000 are returned, the call will be billed as
multiple transactions, as if you had made requests in a
loop asking for 1000 at a time. For example: if you set
maxFileCount to 10000 and 3123 items are returned, you
will be billed for 4 Class C transactions.
prefix
optional
Files returned will be limited to those with the given prefix. Defaults to the empty string, which matches all files.
delimiter
optional
Files returned will be limited to those within the top folder, or any one subfolder. Defaults to NULL. Folder names will also be returned. The delimiter character will be used to "break" file names into folders.
Response
Response HTTP Status 200
List of file names as JSON:
files
An array of objects, each one describing one file. (See below.)
nextFileName
What to pass in to startFileName for the next search to continue where this one left off, or null if there are no more files. Note this this may not be the name of an actual file, but using it is guaranteed to find the next file version in the bucket.
nextFileId
What to pass in to startFileId for the next search to continue where this one left off, or null if there are no more files. Note this this may not be the ID of an actual file, but using it is guaranteed to find the next file version in the bucket.
And each of the files is:
accountId
The account that owns the file.
action
One of "start", "upload", "hide", "folder", or other values added
in the future.
"upload" means a file that was uploaded to B2 Cloud Storage.
"start" means that a large file has been started, but not
finished or canceled.
"hide" means a file version marking the file as hidden, so that it will not
show up in b2_list_file_names
.
"folder" is used to indicate a virtual folder when listing files.
bucketId
The bucket that the file is in.
contentLength
The number of bytes stored in the file. Only useful when the action is "upload". Always 0 when the action is "start", "hide", or "folder".
contentSha1
The SHA1 of the bytes stored in the file as a 40-digit hex string. Large files do not have SHA1 checksums, and the value is "none". The value is null when the action is "hide" or "folder".
contentMd5
optional
The MD5 of the bytes stored in the file as a 32-digit hex string. Not all files have an MD5 checksum, so this field is optional, and set to null for files that do not have one. Large files do not have MD5 checksums, and the value is null. The value is also null when the action is "hide" or "folder".
contentType
When the action is "upload" or "start", the MIME type of the file, as specified when the file was uploaded. For "hide" action, always "application/x-bz-hide-marker". For "folder" action, always null.
fileId
The unique identifier for this version of this file.
Used with b2_get_file_info
,
b2_download_file_by_id
,
and b2_delete_file_version
.
The value is null when for action "folder".
fileInfo
The custom information that was uploaded with the file. This is a JSON object, holding the name/value pairs that were uploaded with the file.
fileName
The name of this file, which can be used with
b2_download_file_by_name
.
fileRetention
The Object Lock retention settings for this file, if any.
This field is filtered based on application key capabilities;
the readFileRetentions
capability is required to
access the value. See Object
Lock for more details on response structure.
This field is omitted when the action is "hide" or "folder".
legalHold
The Object Lock legal hold status for this file, if any.
This field is filtered based on application key capabilities;
the readFileLegalHolds
capability is required to
access the value. See Object
Lock for more details on response structure.
This field is omitted when the action is "hide" or "folder".
replicationStatus
The Replication Status for this file, if any. This will show either PENDING, COMPLETED, FAILED, or REPLICA. For details see Cloud Replication
This field is omitted when the file is not part of a replication rule.
serverSideEncryption
When the file is encrypted
with Server-Side
Encryption, the mode ("SSE-B2" or "SSE-C") and
algorithm used to encrypt the data. If the file is not
encrypted with Server-Side Encryption, then both mode
and algorithm will be null
.
This field is omitted when the action is "hide" or "folder".
uploadTimestamp
This is a UTC time when this file was
uploaded. It is a base 10 number of milliseconds since midnight,
January 1, 1970 UTC. This fits in a 64 bit integer such as the type "long"
in the programming language Java. It is intended to be compatible
with Java's time long. For example, it can be passed directly into
the java call Date.setTime(long time).
Always 0 when the action is "folder".
Response Errors
If possible the server will return a JSON error structure. Errors include:
status |
code |
description |
---|---|---|
400 |
bad_bucket_id |
The requested bucket ID does not match an existing bucket. |
400 |
bad_request |
The request had the wrong fields or illegal values. The message returned with the error will describe the problem. |
400 |
cannot_delete_non_empty_bucket |
A bucket must be empty before it can be deleted. To delete this bucket, first remove all of the files in the bucket, then try the delete operation again. |
400 |
invalid_bucket_id |
Invalid bucketId: <bucketId> |
400 |
out_of_range |
maxFileCount out of range: <maxFileCount> |
400 |
invalid_file_id |
Invalid startFileId: <startFileId> |
401 |
bad_auth_token |
The auth token used is not valid. Call b2_authorize_account again to either get a new one, or an error message describing the problem. |
401 |
expired_auth_token |
The auth token used has expired. Call b2_authorize_account again to get a new one. |
401 |
unauthorized |
The auth token used is valid, but does not authorize this call with these parameters. The capabilities of an auth token are determined by the application key used with b2_authorize_account. |
403 |
transaction_cap_exceeded |
Transaction cap exceeded. To increase your cap, sign in to your B2 Cloud Storage account online. Then select the Caps & Alerts link in the B2 Cloud Storage section of the sidebar. |
503 |
bad_request |
Timed out while iterating and skipping files |
API Versions
v2: Object Lock (May 11, 2021)
Now returns fileRetention
and legalHold
.
v2: Server-Side Encryption (March 5, 2021)
Now returns serverSideEncryption
.
v2: Remove application key workaround (Sept 13, 2018)
Listing file names will always return all of the file names you ask for. If your application key has a file name prefix restriction, and you ask for files outside that prefix, the call is unauthorized.
Now returns accountId
and bucketId
. Does not
return size
any more; use contentLength
instead.
v1: Workaround for existing applications and application keys (August 9, 2018)
When using an application key with a file name prefix restriction, a request to list files will be filtered to show only files allowed by the application key.
v1: Original release (September 22, 2015)
Original release.Sample Code
Code
curl \
-H 'Authorization: ACCOUNT_AUTHORIZATION_TOKEN' \
-d '{"bucketId": "BUCKET_ID"} \
https://apiNNN.backblazeb2.com/b2api/v2/b2_list_file_versions
Output
{
"files": [
{
"accountId": "ACCOUNT_ID",
"action": "hide",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 0,
"contentSha1": null,
"contentType": null,
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10305b68895d22f4_d20180914_m221207_c002_v0001108_t0029",
"fileInfo": {},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536963127000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 5060,
"contentSha1": "28e355c532ff4ebcb78337593a2ef9890bd4af7e",
"contentType": "application/octet-stream",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f1162979affbeac79_d20180914_m210813_c002_v0001107_t0011",
"fileInfo": {
"src_last_modified_millis": "1532626031627"
},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-C"
},
"uploadTimestamp": 1536959293000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 7,
"contentSha1": "dc724af18fbdd4e59189f5fe768a5f8311527050",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10904e5ca06493a1_d20180914_m223119_c002_v0001094_t0002",
"fileInfo": {
"src_last_modified_millis": "1536964184056"
},
"fileName": "testing.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-B2"
},
"uploadTimestamp": 1536964279000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 8,
"contentSha1": "596b29ec9afea9e461a20610d150939b9c399d93",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10076875fe98d4af_d20180914_m223128_c002_v0001108_t0050",
"fileInfo": {
"src_last_modified_millis": "1536964200750"
},
"fileName": "testing2.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536964288000
}
],
"nextFileId": null,
"nextFileName": null
}
Code
import java.io.*;
import java.util.*;
import javax.json.*;
import java.net.HttpURLConnection;
import java.net.URL;
String apiUrl = ""; // Provided by b2_authorize_account
String accountAuthorizationToken = ""; // Provided by b2_authorize_account
String bucketId = ""; // The ID of the bucket you are querying
HttpURLConnection connection = null;
String postParams = "{\"bucketId\":\"" + bucketId + "\"}";
byte postData[] = postParams.getBytes(StandardCharsets.UTF_8);
try {
URL url = new URL(apiUrl + "/b2api/v2/b2_list_file_versions");
connection = (HttpURLConnection)url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Authorization", accountAuthorizationToken);
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setRequestProperty("charset", "utf-8");
connection.setRequestProperty("Content-Length", Integer.toString(postData.length));
connection.setDoOutput(true);
DataOutputStream writer = new DataOutputStream(connection.getOutputStream());
writer.write(postData);
String jsonResponse = myInputStreamReader(connection.getInputStream());
System.out.println(jsonResponse);
} catch (Exception e) {
e.printStackTrace();
} finally {
connection.disconnect();
}
static public String myInputStreamReader(InputStream in) throws IOException {
InputStreamReader reader = new InputStreamReader(in);
StringBuilder sb = new StringBuilder();
int c = reader.read();
while (c != -1) {
sb.append((char)c);
c = reader.read();
}
reader.close();
return sb.toString();
}
Output
{
"files": [
{
"accountId": "ACCOUNT_ID",
"action": "hide",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 0,
"contentSha1": null,
"contentType": null,
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10305b68895d22f4_d20180914_m221207_c002_v0001108_t0029",
"fileInfo": {},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536963127000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 5060,
"contentSha1": "28e355c532ff4ebcb78337593a2ef9890bd4af7e",
"contentType": "application/octet-stream",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f1162979affbeac79_d20180914_m210813_c002_v0001107_t0011",
"fileInfo": {
"src_last_modified_millis": "1532626031627"
},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-C"
},
"uploadTimestamp": 1536959293000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 7,
"contentSha1": "dc724af18fbdd4e59189f5fe768a5f8311527050",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10904e5ca06493a1_d20180914_m223119_c002_v0001094_t0002",
"fileInfo": {
"src_last_modified_millis": "1536964184056"
},
"fileName": "testing.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-B2"
},
"uploadTimestamp": 1536964279000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 8,
"contentSha1": "596b29ec9afea9e461a20610d150939b9c399d93",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10076875fe98d4af_d20180914_m223128_c002_v0001108_t0050",
"fileInfo": {
"src_last_modified_millis": "1536964200750"
},
"fileName": "testing2.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536964288000
}
],
"nextFileId": null,
"nextFileName": null
}
Code
import json
import urllib2
api_url = "" # Provided by b2_authorize_account
account_authorization_token = "" # Provided by b2_authorize_account
bucket_id = "" # The ID of the bucket you are querying
request = urllib2.Request(
'%s/b2api/v2/b2_list_file_versions' % api_url,
json.dumps({ 'bucketId' : bucket_id }),
headers = { 'Authorization': account_authorization_token }
)
response = urllib2.urlopen(request)
response_data = json.loads(response.read())
response.close()
Output
{
"files": [
{
"accountId": "ACCOUNT_ID",
"action": "hide",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 0,
"contentSha1": null,
"contentType": null,
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10305b68895d22f4_d20180914_m221207_c002_v0001108_t0029",
"fileInfo": {},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536963127000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 5060,
"contentSha1": "28e355c532ff4ebcb78337593a2ef9890bd4af7e",
"contentType": "application/octet-stream",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f1162979affbeac79_d20180914_m210813_c002_v0001107_t0011",
"fileInfo": {
"src_last_modified_millis": "1532626031627"
},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-C"
},
"uploadTimestamp": 1536959293000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 7,
"contentSha1": "dc724af18fbdd4e59189f5fe768a5f8311527050",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10904e5ca06493a1_d20180914_m223119_c002_v0001094_t0002",
"fileInfo": {
"src_last_modified_millis": "1536964184056"
},
"fileName": "testing.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-B2"
},
"uploadTimestamp": 1536964279000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 8,
"contentSha1": "596b29ec9afea9e461a20610d150939b9c399d93",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10076875fe98d4af_d20180914_m223128_c002_v0001108_t0050",
"fileInfo": {
"src_last_modified_millis": "1536964200750"
},
"fileName": "testing2.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536964288000
}
],
"nextFileId": null,
"nextFileName": null
}
Code
import Foundation
let apiUrl = "" // Provided by b2_authorize_account
let accountAuthorizationToken = "" // Provided by b2_authorize_account
let bucketId = "" // The ID of the bucket you are querying
// Create the request
var request = URLRequest(url: URL(string: "\(apiUrl)/b2api/v2/b2_list_file_versions")!)
request.httpMethod = "POST"
request.addValue(accountAuthorizationToken, forHTTPHeaderField: "Authorization")
request.httpBody = "{\"bucketId\":\"\(bucketId)\"}".data(using: .utf8)
// Create the task
let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
if let data = data {
let json = String(data: data, encoding: .utf8)
print("\(json!)")
}
}
task.resume()
// Swift 4.1 (swiftlang-902.0.48 clang-902.0.37.1) Xcode 9.3.1 (9E501)
Output
{
"files": [
{
"accountId": "ACCOUNT_ID",
"action": "hide",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 0,
"contentSha1": null,
"contentType": null,
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10305b68895d22f4_d20180914_m221207_c002_v0001108_t0029",
"fileInfo": {},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536963127000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 5060,
"contentSha1": "28e355c532ff4ebcb78337593a2ef9890bd4af7e",
"contentType": "application/octet-stream",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f1162979affbeac79_d20180914_m210813_c002_v0001107_t0011",
"fileInfo": {
"src_last_modified_millis": "1532626031627"
},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-C"
},
"uploadTimestamp": 1536959293000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 7,
"contentSha1": "dc724af18fbdd4e59189f5fe768a5f8311527050",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10904e5ca06493a1_d20180914_m223119_c002_v0001094_t0002",
"fileInfo": {
"src_last_modified_millis": "1536964184056"
},
"fileName": "testing.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-B2"
},
"uploadTimestamp": 1536964279000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 8,
"contentSha1": "596b29ec9afea9e461a20610d150939b9c399d93",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10076875fe98d4af_d20180914_m223128_c002_v0001108_t0050",
"fileInfo": {
"src_last_modified_millis": "1536964200750"
},
"fileName": "testing2.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536964288000
}
],
"nextFileId": null,
"nextFileName": null
}
Code
require 'json'
require 'net/http'
api_url = "" # Provided by b2_authorize_account
account_authorization_token = "" # Provided by b2_authorize_account
bucket_id = "" # The ID of the bucket you are querying
uri = URI("#{api_url}/b2api/v2/b2_list_file_versions")
req = Net::HTTP::Post.new(uri)
req.add_field("Authorization","#{account_authorization_token}")
req.body = "{\"bucketId\":\"#{bucket_id}\"}"
http = Net::HTTP.new(req.uri.host, req.uri.port)
http.use_ssl = (req.uri.scheme == 'https')
res = http.start {|http| http.request(req)}
case res
when Net::HTTPSuccess then
res.body
when Net::HTTPRedirection then
fetch(res['location'], limit - 1)
else
res.error!
end
Output
{
"files": [
{
"accountId": "ACCOUNT_ID",
"action": "hide",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 0,
"contentSha1": null,
"contentType": null,
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10305b68895d22f4_d20180914_m221207_c002_v0001108_t0029",
"fileInfo": {},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536963127000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 5060,
"contentSha1": "28e355c532ff4ebcb78337593a2ef9890bd4af7e",
"contentType": "application/octet-stream",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f1162979affbeac79_d20180914_m210813_c002_v0001107_t0011",
"fileInfo": {
"src_last_modified_millis": "1532626031627"
},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-C"
},
"uploadTimestamp": 1536959293000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 7,
"contentSha1": "dc724af18fbdd4e59189f5fe768a5f8311527050",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10904e5ca06493a1_d20180914_m223119_c002_v0001094_t0002",
"fileInfo": {
"src_last_modified_millis": "1536964184056"
},
"fileName": "testing.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-B2"
},
"uploadTimestamp": 1536964279000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 8,
"contentSha1": "596b29ec9afea9e461a20610d150939b9c399d93",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10076875fe98d4af_d20180914_m223128_c002_v0001108_t0050",
"fileInfo": {
"src_last_modified_millis": "1536964200750"
},
"fileName": "testing2.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536964288000
}
],
"nextFileId": null,
"nextFileName": null
}
Code
String apiUrl = "API_URL"; //Provided by b2_authorize_account
String accountAuthorizationToken = "ACCOUNT_AUTHORIZATION_TOKEN"; //Provided by b2_authorize_account
String bucketId = "BUCKET_ID; //The unique bucket ID
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(apiUrl + "/b2api/v2/b2_list_file_versions");
string body = "{\"bucketId\":\"" + bucketId + "\"}";
var data = Encoding.UTF8.GetBytes(body);
webRequest.Method = "POST";
webRequest.Headers.Add("Authorization", accountAuthorizationToken);
webRequest.ContentType = "application/json; charset=utf-8";
webRequest.ContentLength = data.Length;
using (var stream = webRequest.GetRequestStream())
{
stream.Write(data, 0, data.Length);
stream.Close();
}
WebResponse response = (HttpWebResponse)webRequest.GetResponse();
var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
response.Close();
Console.WriteLine(responseString);
Output
{
"files": [
{
"accountId": "ACCOUNT_ID",
"action": "hide",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 0,
"contentSha1": null,
"contentType": null,
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10305b68895d22f4_d20180914_m221207_c002_v0001108_t0029",
"fileInfo": {},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536963127000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 5060,
"contentSha1": "28e355c532ff4ebcb78337593a2ef9890bd4af7e",
"contentType": "application/octet-stream",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f1162979affbeac79_d20180914_m210813_c002_v0001107_t0011",
"fileInfo": {
"src_last_modified_millis": "1532626031627"
},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-C"
},
"uploadTimestamp": 1536959293000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 7,
"contentSha1": "dc724af18fbdd4e59189f5fe768a5f8311527050",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10904e5ca06493a1_d20180914_m223119_c002_v0001094_t0002",
"fileInfo": {
"src_last_modified_millis": "1536964184056"
},
"fileName": "testing.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-B2"
},
"uploadTimestamp": 1536964279000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 8,
"contentSha1": "596b29ec9afea9e461a20610d150939b9c399d93",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10076875fe98d4af_d20180914_m223128_c002_v0001108_t0050",
"fileInfo": {
"src_last_modified_millis": "1536964200750"
},
"fileName": "testing2.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536964288000
}
],
"nextFileId": null,
"nextFileName": null
}
Code
$api_url = ""; // From b2_authorize_account call
$auth_token = ""; // From b2_authorize_account call
$bucket_id = ""; // The ID of the bucket
$session = curl_init($api_url . "/b2api/v2/b2_list_file_versions");
// Add post fields
$data = array("bucketId" => $bucket_id);
$post_fields = json_encode($data);
curl_setopt($session, CURLOPT_POSTFIELDS, $post_fields);
// Add headers
$headers = array();
$headers[] = "Authorization: " . $auth_token;
curl_setopt($session, CURLOPT_HTTPHEADER, $headers);
curl_setopt($session, CURLOPT_POST, true); // HTTP POST
curl_setopt($session, CURLOPT_RETURNTRANSFER, true); // Receive server response
$server_output = curl_exec($session); // Let's do this!
curl_close ($session); // Clean up
echo ($server_output); // Tell me about the rabbits, George!
Output
{
"files": [
{
"accountId": "ACCOUNT_ID",
"action": "hide",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 0,
"contentSha1": null,
"contentType": null,
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10305b68895d22f4_d20180914_m221207_c002_v0001108_t0029",
"fileInfo": {},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536963127000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 5060,
"contentSha1": "28e355c532ff4ebcb78337593a2ef9890bd4af7e",
"contentType": "application/octet-stream",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f1162979affbeac79_d20180914_m210813_c002_v0001107_t0011",
"fileInfo": {
"src_last_modified_millis": "1532626031627"
},
"fileName": "logscript.py",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-C"
},
"uploadTimestamp": 1536959293000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 7,
"contentSha1": "dc724af18fbdd4e59189f5fe768a5f8311527050",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10904e5ca06493a1_d20180914_m223119_c002_v0001094_t0002",
"fileInfo": {
"src_last_modified_millis": "1536964184056"
},
"fileName": "testing.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": "AES256",
"mode": "SSE-B2"
},
"uploadTimestamp": 1536964279000
},
{
"accountId": "ACCOUNT_ID",
"action": "upload",
"bucketId": "b2f6f21365e1d29f6c580f18",
"contentLength": 8,
"contentSha1": "596b29ec9afea9e461a20610d150939b9c399d93",
"contentType": "text/plain",
"fileId": "4_zb2f6f21365e1d29f6c580f18_f10076875fe98d4af_d20180914_m223128_c002_v0001108_t0050",
"fileInfo": {
"src_last_modified_millis": "1536964200750"
},
"fileName": "testing2.txt",
"fileRetention": {
"isClientAuthorizedToRead": true,
"value": {
"mode": null,
"retainUntilTimestamp": null
}
},
"legalHold": {
"isClientAuthorizedToRead": true,
"value": null
},
"serverSideEncryption": {
"algorithm": null,
"mode": null
},
"uploadTimestamp": 1536964288000
}
],
"nextFileId": null,
"nextFileName": null
}