b2_authorize_account

Print
Dark
Light

b2_authorize_account

Print
Dark
Light

Article Summary

Share feedback

Thanks for sharing your feedback!

Get

/b2api/v3/b2_authorize_account

Returns an authorization token

Used to log in to the B2 API. Returns an authorization token that can be used for subsequent API calls, and a URL that should be used as the base URL for subsequent API calls.

You can use either the master application key or a normal application key.

NOTE the account ID can be used in place of the master application key ID.

You'll find the master application key in the Backblaze web UI. When using the master application key, use your "master application key ID" and the "application key" you got from the site.

Master Application Key This is the first key you have access to, it is available in the Backblaze web UI. This key has all capabilities, access to all buckets, and has no file prefix restrictions or expiration.

Application Key(s) [non-master] These are other keys created by you and can be limited to a bucket, with a specific file prefix and can expire.

Normal application keys come from the b2_create_key call. When using one of them, the "application key ID" and "application key" are the ones returned when you created the key.

API Versions

v3 b2_authorize_account (September 23, 2021)

b2_authorize_account now returns a data structure that groups the information you need by API suite. For each suite enabled, it provides the information you need to call those APIs.

Please use v2 with b2_authorize_account for B2 Native API calls if the Partner API is enabled on your account.

v2 Return bucket name (Sept 13, 2018)

When using an application key with a bucket restriction, the name of the bucket is now returned.

Header parameters

Authorization

stringRequired

An HTTP basic auth value constructed as follows:

The application key id and application key are combined into a string in the format "applicationKeyId:applicationKey".
The combined string is Base64 encoded.
"Basic" is put before the encoded string.

Responses

200

The request succeeded.

Expand All

object

Example{ "accountId": "ACCOUNT_ID", "apiInfo": { "storageApi": { "absoluteMinimumPartSize": 5000000, "apiUrl": "https://api001.backblazeb2.com", "bucketId": null, "bucketName": null, "capabilities": [ "deleteFiles", "deleteKeys", "readBucketEncryption", "writeKeys", "writeBuckets", "writeBucketReplications", "readBucketReplications", "deleteBuckets", "readBuckets", "bypassGovernance", "readFileLegalHolds", "readFiles", "listAllBucketNames", "readBucketRetentions", "writeBucketRetentions", "writeFileLegalHolds", "shareFiles", "writeFiles", "listKeys", "listBuckets", "listFiles", "writeFileRetentions", "writeBucketEncryption", "readFileRetentions" ], "downloadUrl": "https://f001.backblazeb2.com", "infoType": "storageApi", "namePrefix": null, "recommendedPartSize": 100000000, "s3ApiUrl": "https://s3.us-west-001.backblazeb2.com" }, "groupsApi": { "capabilities": [ "all" ], "groupsApiUrl": "https://apiNNN.backblazeb2.com", "infoType": "groupsApi" } }, "applicationKeyExpirationTimestamp": null, "authorizationToken": "AUTHORIZATION_TOKEN" }

accountId

string

The identifier for the account.

ExampleYOUR_ACCOUNT_ID

apiInfo

object

A data structure that groups the information you need by API suite.

groupsApi

object

A data structure that contains the information you need for the Partner API.

capabilities

Array of string

A list of strings, each one naming a capability the new key should have.

Example[ "all" ]

string

groupsApiUrl

string

The base URL for all Partner API calls.

Examplehttps://apiNNN.backblazeb2.com

infoType

string

The API type that the information in the object corresponds to.

ExamplegroupsApi

storageApi

object

A data structure that contains the information you need for the Storage API.

absoluteMinimumPartSize

integer

The smallest possible size of a part of a large file (except the last one). This is smaller than the recommendedPartSize. If you use it, you may find that it takes longer overall to upload a large file.

Example5000000

apiUrl

string

The base URL to use for all API calls except for uploading and downloading files.

Examplehttps://apiNNN.backblazeb2.com

bucketId

string

When present, access is restricted to one bucket.

ExampleBUCKET_ID

bucketName

string

When bucketId is set, and it is a valid bucket that has not been deleted, this field is set to the name of the bucket. It's possible that bucketId is set to a bucket that no longer exists, in which case this field will be null. It's also null when bucketId is null.

ExamplemyBucketName

capabilities

Array of string

A list of strings, each one naming a capability the key has.

Example[ "deleteFiles", "deleteKeys", "readBucketEncryption", "writeKeys", "writeBuckets", "writeBucketReplications", "readBucketReplications", "deleteBuckets", "readBuckets", "bypassGovernance", "readFileLegalHolds", "readFiles", "listAllBucketNames", "readBucketRetentions", "writeBucketRetentions", "writeFileLegalHolds", "shareFiles", "writeFiles", "listKeys", "listBuckets", "listFiles", "writeFileRetentions", "writeBucketEncryption", "readFileRetentions" ]

string

Valid values[ "deleteFiles", "deleteKeys", "readBucketEncryption", "writeKeys", "writeBuckets", "writeBucketReplications", "readBucketReplications", "deleteBuckets", "readBuckets", "bypassGovernance", "readFileLegalHolds", "readFiles", "listAllBucketNames", "readBucketRetentions", "writeBucketRetentions", "writeFileLegalHolds", "shareFiles", "writeFiles", "listKeys", "listBuckets", "listFiles", "writeFileRetentions", "writeBucketEncryption", "readFileRetentions" ]

downloadUrl

string

The base URL to use for downloading files.

Examplehttps://f001.backblazeb2.com

infoType

string

The API type that the information in the object corresponds to.

ExamplestorageApi

namePrefix

string

When present, access is restricted to files whose names start with the prefix

ExamplemyFilePrefix

recommendedPartSize

integer

The recommended file part size.

Example100000000

s3ApiUrl

string

The base URL to use for all API calls using the S3 compatible API.

Examplehttps://s3.us-west-NNN.backblazeb2.com

authorizationToken

string

An authorization token to use with all calls, other than b2_authorize_account, that need an Authorization header. This authorization token is valid for at most 24 hours.

ExampleAUTHORIZATION_TOKEN

applicationKeyExpirationTimestamp

integer

Expiration timestamp for the application key.

Examplenull

400

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.

object

status

integer

The numeric HTTP status code. Always matches the status in the HTTP response.

Example400

code

string

A single-identifier code that identifies the error.

Exampleinvalid_bucket_name

message

string

A human-readable message, in English, saying what went wrong.

Examplebucket name is too long

401

status	code	description
401	unauthorized	The `applicationKeyId` and/or the `applicationKey` are wrong.
401	unsupported	The `applicationKeyId` is valid, but cannot be used with this version of the B2 API. The message contains information about the problem.

403

status	code	description
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.

Was this article helpful?

What's Next

b2_cancel_large_file