Though Create-attachment & Upload attachment API's are successful, still uploaded file is not visible in azure devops repos branch

Question

After lots lots of struggle, finally framed below code to interact with Azure Devops via REST API but dont see file in Azure Devops- Repos's Branches.

First created a attachment using below API:

https://docs.microsoft.com/en-us/rest/api/azure/devops/wit/attachments/create?view=azure-devops-rest-6.0

## Create attachment ###########################################
ado_req_headers_ATT = {"Content-Type":"application/octet-stream"}

directory_path = str('C:\\Users\\XXX\\YYY')
txt_files = [f for f in os.listdir(directory_path) if f.endswith('.json')]
if len(txt_files) != 1:
    raise ValueError('should be only one json file in the current directory')
else:
    file_name = txt_files[0]
print("Test_file",file_name)
file_path = directory_path+"\\"+str(file_name)
with open(file_path, "rb") as f:
    Test_file=f.read()
print(len(Test_file))
create_attach_url = str(organization_url)+str('/_apis/wit/attachments?fileName=')+file_name+str('&uploadType=Simple&api-version=6.0')
create_attach_details = requests.post(url=create_attach_url,headers=ado_req_headers_ATT,data=Test_file,auth=('',ADO_AUTH_PAT))
attachment_obj = create_attach_details.json()
print("create_attach_details_ID_:-",attachment_obj['id'])  ## Got attachment ID
print("create_attach_details_URL_:-",attachment_obj['url']) ## Got Url, when this url get hit in browser, got the attachment to get download.
print("Attachment_details_Status_Code:-",create_attach_details.status_code) # code: 201

Later uploaded the attachment using below API:

https://docs.microsoft.com/en-us/rest/api/azure/devops/wit/attachments/upload%20chunk?view=azure-devops-rest-6.0

## upload attachment ###########################################

CL=len(Test_file)
Range=(f'"Content-Range":"bytes 0-{CL-1}/{CL}"')
ado_req_headers_ATT = str('{"Content-Type":"application/octet-stream","Content-Length":"')+str(CL)+str('"')+str(',')+Range+str('}')
ado_req_headers_ATT=json.loads(ado_req_headers_ATT)
print(ado_req_headers_ATT)
upload_attach_url = str(organization_url)+str('/_apis/wit/attachments/')+str(attachment_obj['id'])+str('?api-version=6.0')
print(upload_attach_url)
upload_attach_details = requests.put(url=upload_attach_url,headers=ado_req_headers_ATT,data=Test_file,auth=('',ADO_AUTH_PAT))
print(upload_attach_details)
attachment_obj = upload_attach_details.json()
print(attachment_obj)
print("Attachment_details:-",create_attach_details.text)
##print("create_attach_details_ID_:-",attachment_obj['id'])  ## Got attachment ID
##print("create_attach_details_URL_:-",attachment_obj['url']) ## Got Url, when this url get hit in browser, got the attachment to get download.
print("Attachment_upload_Status_Code:-",create_attach_details.status_code)## Code: 201

Both the API's are suucessful but still couldn't see the file in azure devops-Repos Branches. What am i missing, couldn't understand or post anymore API's need to hit ? pls suggest.

Post , i have tried to update the workitem using below API:

https://docs.microsoft.com/en-us/rest/api/azure/devops/wit/work%20items/update?view=azure-devops-rest-5.0#add-an-attachment

##### Update Attachment in path #######################################
ado_req_headers_ATT = {"Content-Type":"application/json-patch+json","dataType":"application/json-patch+json",}
update_attach_url = str(organization_url)+str('/_apis/wit/workitems/')+str(attachment_obj['id'])+str('?api-version=6.0')
print(update_attach_url)
#Body_data = [{"op": "test","path": "/ref","value": 3},{"op": "add","path": "/heads/branchname","value": "Adding the necessary spec"},{"op": "add","path": "/relations/-","value": {"rel": "AttachedFile","url": attachment_obj['url'],"attributes": {"comment": "Spec for the work"}}}]
Body_data = [{"op": "add","path": ref/headers/banchname,"value": {"rel": "AttachedFile","url": str(attachment_obj['url'])+str('?fileName=')+file_name,"attributes": {"comment": "Spec for the work"}}}]
Body_data = json.dumps(Body_data)
print(Body_data)
update_attach_details = requests.patch(url=update_attach_url,headers=ado_req_headers_ATT,data=Body_data,auth=('',ADO_AUTH_PAT))
print(update_attach_details.text) ## Page not found
print(update_attach_details.status_code)  ## 404

Any suggestions please

Answer 1

When using the Work Item attachments API "Upload Chunk", the request method is PUT instead of PATCH.

Please change the request method to be PUT to see if the Python code can work.

In addition, make sure you have used the Media Type "application/octet-stream" on the API "Create" and "Upload Chunk".

Answer 2

Below two API's ie enough to upload the file into repository:

######## Get   last commit ID ##########################
#Get_commit_url = str(organization_url)+str('/_apis/git/repositories/')+str(Repos_obj['value'][0]['id'])+str('/commits?api-version=6.0')
Get_commit_url = str(organization_url)+str('/_apis/git/repositories/')+str(Repos_obj['value'][Repository_ID]['id'])+str('/commits?api-version=6.0')
print(Get_commit_url)
Get_commit_Details = requests.get(url=Get_commit_url,headers=ado_req_headers_ATT,auth=('',ADO_AUTH_PAT))
##print(Get_Push_Details.text)
##print(Get_Push_Details.status_code)
Get_commit_Details=Get_commit_Details.json()
print(Get_commit_Details)
for item in Get_commit_Details["value"]:
    print( item["commitId"])
    old_objectID= item["commitId"]
    break

## Run push API

ado_req_headers_ATT = {"Content-Type":"application/json-patch+json"}
push_file_url = str(organization_url)+str('/_apis/git/repositories/')+str(Repos_obj['value'][Repository_ID]['id'])+str('/pushes?api-version=6.0')
print(push_file_url)
##Body_data = {"refUpdates": [{"name": Repos_obj['value'][0]['defaultBranch'],"oldObjectId":"0000000000000000000000000000000000000000"}],"commits":[{"comment": "Initial Commmit.","changes":[{"changeType": "add","item": {"path":"/Hello.doc"},"newContent": {"content": "# Tasks\n\n* Item 1Hello\n* Item 2","contentType": "rawtext"}}]}]}
Body_data = {"refUpdates": [{"name": Repos_obj['value'][Repository_ID]['defaultBranch'],"oldObjectId":old_objectID}],"commits":[{"comment": "Initial Commmit.","changes":[{"changeType": "add","item": {"path":"/Hello.doc"},"newContent": {"content": "# Tasks\n\n* Item 1Hello\n* Item 2","contentType": "rawtext"}}]}]}
##Body_data = {"refUpdates": [{"name": Repos_obj['value'][Repository_ID]['defaultBranch'],"oldObjectId":old_objectID}],"commits":[{"comment": "Remove file.","changes":[{"changeType": "delete","item": {"path":"/Hello.doc"}}]}]}
Body_data = json.dumps(Body_data)
##print(Body_data)
Push_file= requests.post(url=push_file_url,headers=ado_req_headers_ATT,data=Body_data,auth=('',ADO_AUTH_PAT))
print(Push_file.status_code)
print(Push_file.text)

Finally i succeeded !!! Thanks everyone for the support