Create file - Storage | iTwin Platform

REST API Overview

Reference

Changelog

Storage

Download API definition:

Create file

POST https://dev-api.bentley.com/storage/folders/{folderId}/files

Create new file in the folder.

As shown in the request section below, you must provide a request body.

The displayName MUST be provided in the request body, and the folderId MUST be provided in the parameters.

Parameters

folderId – Id of the folder in which you want to create the file. File will be created in the folder with provided folderId.

Notes

File creation is a three step process. This request will create file's meta data. Next two requests need to be executed by using links from the response.

uploadUrl is required for file upload. Upload can be done by sending http PUT request and specifying x-ms-blob-type header to BlockBlob. You can use Postman, Azcopy or any libraries with support Azure blob upload to upload the file to provided uploadUrl.
completeUrl is used to confirm file upload and it is final request for file creation.

Maximum file size to upload with single request is 256 MiB. If bigger file needs to be uploaded there are ways to use Azure libraries to upload file via given Azure SAS url or by uploading file with multiple requests.

For large size file upload you can upload the file in chunks using FileStream depending on the tech-stack you are using.

Authentication

Requires Authorization header with valid Bearer token for scope itwin-platform.

For more documentation on authorization and how to get access token visit OAUTH2 Authorization page.

Authorization

User must be an Organization Administrator for the Organization that owns a given Project or have storage_write permission assigned at the Project level.

An Organization Administrator must have at least one of the following roles assigned in User Management: Account Administrator, Co-Administrator, or CONNECT Services Administrator. For more information about User Management please visit our Bentley Communities Licensing, Cloud, and Web Services wiki page.

Errors

This request can return InvalidCreateFileRequest error with 422 status code. This could happen because of these reasons:

File name contains invalid characters.
File name's length is larger than 255 characters.
File could be harmful. For example, executable files are not accepted.

Request

Request parameters

folderId

Yes

Id of the folder in which you want to create the file. File will be created in the folder with provided folderId.

Request headers

Authorization

Yes

OAuth access token with itwin-platform scope

Yes

Setting to application/vnd.bentley.itwin-platform.v1+json is recommended.

Request body

file (create)

displayName

String

Yes

Display name of the file.

description

String

Description of the file.

Example

json

{
    "displayName": "test.txt",
    "description": "test file"
}

Response

Response 202 Accepted

Accepted

json

{
    "_links": {
        "completeUrl": {
            "href": "https://api.bentley.com/storage/files/TYJsPN0xtkWId0yUrXkS5pN5AQzuullIkxz5aDnDJSI/complete"
        },
        "uploadUrl": {
            "href": "https://projectshareprodeussa01.blob.core.windows.net/azuresqldbecpluginstorage/ProjectShare/File/b6145b7f-fee9-4a13-b1e4-5d061970373e?sv=2017-04-17&sr=b&sig=4NfdEriAONQhbHGkrTAL4bNMzjW8Qm5l%2FoEPiSQl%2BPo%3D&se=2020-10-19T15:12:51Z&sp=rw&rscd=attachment%3B%20filename%3D%22test.txt%22&userid=b905387c-a685-4d27-aab7-468c9ff0c9a6"
        }
    }
}

Response 401 Unauthorized

This response indicates that request lacks valid authentication credentials. Access token might not been provided, issued by the wrong issuer, does not have required scopes or request headers were malformed.

json

{
    "error": {
        "code": "HeaderNotFound",
        "message": "Header Authorization was not found in the request. Access denied."
    }
}

Response 404 Not Found

Parent folder cannot be found.

json

{
    "error": {
        "code": "FolderNotFound",
        "message": "Requested folder is not available."
    }
}

Response 422 Unprocessable Entity

Invalid request to create a file. Make sure that a valid file ID and file details were passed in.

json

{
    "error": {
        "code": "InvalidStorageRequest",
        "message": "The request to create file was invalid. Please see the API Reference for possible reasons."
    }
}

Response 429 Too many requests

This response indicates that the user has sent too many requests in a given amount of time.

json

{
    "error": {
        "code": "TooManyRequests",
        "message": "More requests were received than the subscription rate-limit allows."
    }
}

Response headers

retry-after

The number of requests exceeds the rate-limit for the client subscription.

Definitions

link

Hyperlink container.

href

String

Hyperlink to the specific entity.

file (create)

Model for file creation.

displayName

String

Display name of the file.

description

String

Description of the file.

file-upload

Model for file upload.

_links

links-upload

Hyperlinks for further file upload and confirmation.

links (upload)

Hyperlinks for further file upload and confirmation.

uploadUrl

link

URL for uploading file content.

completeUrl

link

URL for completing file creation.

Error

Contains error information.

code

String

One of a server-defined set of error codes.

message

String

A human-readable representation of the error.

target

String, null

The target of the error.

Error Response

Gives details for an error that occurred while handling the request. Note that clients MUST NOT assume that every failed request will produce an object of this schema, or that all of the properties in the response will be non-null, as the error may have prevented this response from being constructed.

error

Error

Error information.