2015-06-18 15:44:57 +00:00
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# Git LFS v1 Original API
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2015-06-18 15:21:55 +00:00
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2015-06-18 15:44:57 +00:00
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This describes the original API for Git LFS v0.5.x. It's already deprecated by
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the [batch API][batch]. All requests should have:
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Accept: application/vnd.git-lfs+json
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Content-Type: application/vnd.git-lfs+json
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[batch]: ./http-v1-batch.md
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## API Responses
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This specification defines what status codes that API can return. Look at each
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individual API method for more details. Some of the specific status codes may
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trigger specific error messages from the client.
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* 200 - The request completed successfully.
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* 202 - An upload request has been accepted. Clients must follow hypermedia
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links to actually upload the content.
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* 301 - A permanent redirect. Only supported for GET/HEAD requests.
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* 302 - A temporary redirect. Only supported for GET/HEAD requests.
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* 303 - A temporary redirect. Only supported for GET/HEAD requests.
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* 307 - A temporary redirect. Keeps the original request method intact.
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* 400 - General error with the client's request. Invalid JSON formatting, for
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example.
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* 401 - The authentication credentials are incorrect.
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* 403 - The requesting user has access to see the repository, but not to push
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changes to it.
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* 404 - Either the user does not have access to see the repository, or the
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repository or requested object does not exist.
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The following status codes can optionally be returned from the API, depending on
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the server implementation.
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* 406 - The Accept header needs to be `application/vnd.git-lfs+json`.
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* 410 - The requested object used to exist, but was deleted. The message should
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state why (user initiated, legal issues, etc).
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* 429 - The user has hit a rate limit with the server. Though the API does not
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specify any rate limits, implementors are encouraged to set some for
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availability reasons.
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* 501 - The server has not implemented the current method. Reserved for future
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use.
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* 509 - Returned if the bandwidth limit for the user or repository has been
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exceeded. The API does not specify any bandwidth limit, but implementors may
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track usage.
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Some server errors may trigger the client to retry requests, such as 500, 502,
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503, and 504.
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If the server returns a JSON error object, the client can display this message
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to users.
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```
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> GET https://git-lfs-server.com/objects/{OID} HTTP/1.1
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> Accept: application/vnd.git-lfs+json
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>
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< HTTP/1.1 200 OK
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< Content-Type: application/vnd.git-lfs+json
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<
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< {
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< "message": "Bad credentials",
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< "documentation_url": "https://git-lfs-server.com/docs/errors",
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< "request_id": "123"
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< }
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```
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The `documentation_url` and `request_id` properties are optional. If given,
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they are displayed to the user.
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## Redirections
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The Git LFS client follows redirections on the core Git LFS API methods only.
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Any of the hypermedia hrefs that are returned must be for the current location.
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The client will pass all of the original request headers to the redirected
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request, only changing the URL based on the redirect location. The only
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exception is the Authorization header, which is only passed through if the
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original request and the new location have a matching URL scheme, host, and
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port.
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The client will automatically follow redirections for GET or HEAD requests on
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a 301, 302, 303, or 307 HTTP status. It only automatically follows redirections
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for other HTTP verbs on a 307 HTTP status.
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Note: the 308 HTTP status is not official, and has conflicting proposals for its
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intended use. It is not supported as a redirection.
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## GET /objects/{oid}
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This gets the object's meta data. The OID is the value from the object pointer.
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```
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> GET https://git-lfs-server.com/objects/{OID} HTTP/1.1
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> Accept: application/vnd.git-lfs+json
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> Authorization: Basic ... (if authentication is needed)
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>
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< HTTP/1.1 200 OK
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< Content-Type: application/vnd.git-lfs+json
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<
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< {
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< "oid": "the-sha-256-signature",
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< "size": 123456,
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< "_links": {
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< "self": {
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< "href": "https://git-lfs-server.com/objects/OID",
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< },
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< "download": {
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< "href": "https://some-download.com",
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< "header": {
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< "Key": "value"
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< }
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< }
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< }
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< }
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```
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The `oid` and `size` properties are required. A hypermedia `_links` section is
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included with a `download` link relation. Clients can follow this link to
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access the object content. See the "Hypermedia" section above for more.
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Here's a sample response for a request with an authorization error:
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```
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> GET https://git-lfs-server.com/objects/{OID} HTTP/1.1
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> Accept: application/vnd.git-lfs+json
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> Authorization: Basic ... (if authentication is needed)
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>
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< HTTP/1.1 404 Not found
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< Content-Type: application/vnd.git-lfs+json
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<
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< {
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< "message": "Not found"
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< }
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```
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### Responses
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* 200 - The object exists and the user has access to download it.
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* 401 - The authentication credentials are incorrect.
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* 404 - The user does not have access to the object, or it does not exist.
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* 410 - The object used to exist, but was deleted. The message should state why
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(user initiated, legal issues, etc).
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## POST /objects
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This request initiates the upload of an object, given a JSON body with the oid
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and size of the object to upload.
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```
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> POST https://git-lfs-server.com/objects HTTP/1.1
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> Accept: application/vnd.git-lfs+json
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> Content-Type: application/vnd.git-lfs+json
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> Authorization: Basic ... (if authentication is needed)
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>
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> {
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> "oid": "1111111",
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> "size": 123
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> }
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>
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< HTTP/1.1 202 Accepted
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< Content-Type: application/vnd.git-lfs+json
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<
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< {
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< "_links": {
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< "upload": {
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< "href": "https://some-upload.com",
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< "header": {
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< "Key": "value"
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< }
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< },
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< "verify": {
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< "href": "https://some-callback.com",
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< "header": {
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< "Key": "value"
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< }
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< }
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< }
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< }
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```
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A response can include one of multiple link relations, each with an `href`
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property and an optional `header` property.
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* `upload` - This relation describes how to upload the object. Expect this with
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a 202 status.
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* `verify` - The server can specify a URL for the client to hit after
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successfully uploading an object. This is an optional relation for a 202
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status.
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* `download` - This relation describes how to download the object content. This
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only appears on a 200 status.
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### Responses
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* 200 - The object already exists. Don't bother re-uploading.
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* 202 - The object is ready to be uploaded. Follow the "upload" and optional
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"verify" links.
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* 401 - The authentication credentials are incorrect.
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* 403 - The user has **read**, but not **write** access.
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* 404 - The repository does not exist for the user.
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