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I am looking to create an API endpoint route that returns txt in a json format -Python

I'm new to developing and my question(s) involves creating an API endpoint in our route. The api will be used for a POST from a Vuetify UI. Data will come from our MongoDB. We will be getting a .txt file for our shell script but it will have to POST as a JSON. I think these are the steps for converting the text file:
1)create a list for the lines of the .txt
2)add each line to the list
3) join the list elements into a string
4)create a dictionary with the file/file content and convert it to JSON
This is my current code for the steps:
import json
something.txt: an example of the shell script ###
f = open("something.txt")
create a list to put the lines of the file in
file_output = []
add each line of the file to the list
for line in f:
file_output.append(line)
mashes all of the list elements together into one string
fileoutput2 = ''.join(file_output)
print(fileoutput2)
create a dict with file and file content and then convert to JSON
json_object = {"file": fileoutput2}
json_response = json.dumps(json_object)
print(json_response)
{"file": "Hello\n\nSomething\n\nGoodbye"}
I have the following code for my baseline below that I execute on my button press in the UI
#bp_customer.route('/install-setup/<string:customer_id>', methods=['POST'])
def install_setup(customer_id):
cust = Customer()
customer = cust.get_customer(customer_id)
### example of a series of lines with newline character between them.
script_string = "Beginning\nof\nscript\n"
json_object = {"file": script_string}
json_response = json.dumps(json_object)
get the install shell script content
replace the values (somebody has already done this)
attempt to return the below example json_response
return make_response(jsonify(json_response), 200)
my current Vuetify button press code is here: so I just have to ammend it to a POST and the new route once this is established
onClickScript() {
console.log("clicked");
axios
.get("https://sword-gc-eadsusl5rq-uc.a.run.app/install-setup/")
.then((resp) => {
console.log("resp: ", resp.data);
this.scriptData = resp.data;
});
},
I'm having a hard time combining these 2 concepts in the correct way. Any input as to whether I'm on the right path? Insight from anyone who's much more experienced than me?

You're on the right path, but needlessly complicating things a bit. For example, the first bit could be just:
import json
with open("something.txt") as f:
json_response = json.dumps({'file': f.read()})
print(json_response)
And since you're looking to pass everything through jsonify anyway, even this would suffice:
with open("something.txt") as f:
data = {'file': f.read()}
Where you can pass data directly through jsonify. The rest of it isn't sufficiently complete to offer any concrete comments, but the basic idea is OK.
If you have a working whole, you could go to https://codereview.stackexchange.com/ to ask for some reviews, you should limit questions on StackOverflow to actual questions about getting something to work.

Create blob from URL in gae using python

I'm trying to create a blob from an image URL but I can't figure out how to do that.
I've already read the documentation from google about creating blob, but it talks only about creating blob from a form and using blobstore.create_upload_url('/upload_photo').
I read some question over there but I didn't found anything that could help me.
My app has a list of image URL and I want to save theese images into the blobstore so I will able to serve them afterwards. I think that blobstore is the solution but if there is a better way to do this, please tell me!
EDIT
I'm trying to use google cloud storage:
class Upload(webapp2.RequestHandler):
def get(self):
self.response.write('Upload blob from url')
url = 'https://500px.com/photo/163151085/evening-light-by-jack-resci'
url_preview = 'https://drscdn.500px.org/photo/163151085/q%3D50_w%3D140_h%3D140/d3b8d92296f9381a91f6d41b1c607c92?v=3'
result = urlfetch.fetch(url_preview)
if result.status_code == 200:
doSomethingWithResult(result.content)
self.response.write(url_preview)
def doSomethingWithResult(content):
gcs_file_name = '/%s/%s' % ('provajack-1993', 'prova.jpg')
content_type = mimetypes.guess_type('prova.jpg')[0]
with cloudstorage.open(gcs_file_name, 'w', content_type=content_type, options={b'x-goog-acl': b'public-read'}) as f:
f.write(content)
return images.get_serving_url(blobstore.create_gs_key('/gs' + gcs_file_name))
(found in stackoverflow) but this code give me an error:
*File "/base/data/home/apps/e~places-1993/1.394547465865256081/main.py", line 54, in doSomethingWithResult
with cloudstorage.open(gcs_file_name, 'w', content_type=content_type, options={b'x-goog-acl': b'public-read'}) as f:
AttributeError: 'module' object has no attribute 'open'*
I can't understand why. I have to set something in cloud storage?

The cloudstorage.open() clearly exists, so the error likely indicates some library/naming conflict in your environment.
A method for debugging such conflict is described in this post: google-cloud-sdk - Fatal errors on both update and attempted reinstall Mac OSX 10.7.5

DoubleClick Bid Manager API not updating the line items

I am downloading line items from DBM, modifying them and uploading them again to DBM. Once uploaded, if I download and view them again, I am not able to see the modifications. There is no error in the code and the API also is not returning any errorStatus.
Code to upload line items:
service = build('doubleclickbidmanager', config.Version, http=credentials.authorize(httplib2.Http()))
request = service.lineitems().uploadlineitems(body=BODY)
response = request.execute()
if 'uploadStatus' in response and 'errors' in response['uploadStatus']:
for error in response['uploadStatus']['errors']:
logging.error(error)
Code to download line items:
service = build('doubleclickbidmanager', config.Version, http=credentials.authorize(httplib2.Http()))
request = service.lineitems().downloadlineitems(body=body)
print "Downloading Line Items.."
logging.info("function: Downloading Line Items..")
# Execute request and save response contents.
with open(file_path, 'wb') as handler:
# Call the API, getting the (optionally filtered) list of line items.
# Then write the contents of the response to a CSV file.
lidata = request.execute()['lineItems'].encode('utf-8')
logging.info("function:request.execute succeeded.")
handler.write(lidata)
print 'Download Completed.'
Is this the proper way to check whether the line item is modified, or am I doing something wrong? Is there any other way to check it?

Please note that api will update the line item in following cases:
-Based on any flag,if the flag is set for the row,it will update
-Not all the rows will get update
Refer this link:https://developers.google.com/bid-manager/guides/entity-write/format- For those Columns, whose writeable value is yes can only be updated

how can i set the key 'blob-key' about BlobStore?

I tried to use the jquery plugin "uploadify" to upload multiple files to My App in Google App-Engine, and then save them with blobstore, but it failed. I traced the code into get_uploads, it seems field.type_options is empty, and of course does not have 'blob-key'. Where does the key 'blob-key' come from?
the code like this:
def upload(request):
for blob in blogstorehelper.get_uploads(request, 'Filedata'):
file = File()
file.blobref = blob
file.save()
return ……
but, blogstorehelper.get_uploads(request, 'Filedata') is always empty. In fact, the request has contained the uploaded file(I print the request). I debugged into the blogstorehelper.get_uploads, and found that field.type_options is empty. who can tell me why? thank you! here is the source about get_uploads: http://appengine-cookbook.appspot.com/recipe/blobstore-get_uploads-helper-function-for-django-request/?id=ahJhcHBlbmdpbmUtY29va2Jvb2tyjwELEgtSZWNpcGVJbmRleCI4YWhKaGNIQmxibWRwYm1VdFkyOXZhMkp2YjJ0eUZBc1NDRU5oZEdWbmIzSjVJZ1pFYW1GdVoyOE0MCxIGUmVjaXBlIjphaEpoY0hCbGJtZHBibVV0WTI5dmEySnZiMnR5RkFzU0NFTmhkR1ZuYjNKNUlnWkVhbUZ1WjI4TTIxDA

Pylons: response renaming? Is there a better way?

I've got a Pylons controller with an action called serialize returning content_type=text/csv. I'd like the response of the action to be named based on the input patameter, i.e. for the following route, produced csv file should be named {id}.csv : /app/PROD/serialize => PROD.csv (so a user can open the file in Excel with a proper name directly via a webbrowser)
map.connect('/app/{id}/serialize',controller = 'csvproducer',action='serialize')
I've tried to set different HTTP headers and properties of the webob's response object with no luck. However, I figured out a workaround by simply adding a new action to the controller and dynamically redirecting the original action to that new action, i.e.:
map.connect('/app/{id}/serialize',controller = 'csvproducer',action='serialize')
map.connect('/app/csv/{foo}',controller = 'csvproducer', action='tocsv')
The controller's snippet:
def serialize(self,id):
try:
session['key'] = self.service.serialize(id) #produces csv content
session.save()
redirect_to(str("/app/csv/%s.csv" % id))
except Exception,e:
log.error(e)
abort(503)
def tocsv(self):
try:
csv = session.pop("rfa.enviornment.serialize")
except Exception,e:
log.error(e)
abort(503)
if csv:
response.content_type='text/csv'
response.status_int=200
response.write(csv)
else:
abort(404)
The above setup works perfectly fine, however, is there a better/slicker/neater way of doing it? Ideally I wouldn't like to redirect the request; instead I'd like to either rename location or set content-disposition: attachment; filename='XXX.csv' [ unsuccessfully tried both :( ]
Am I missing something obvious here?
Cheers
UPDATE:
Thanks to ebo I've managed to do fix content-disposition. Should better read W3C specs next time ;)

You should be able to set the content-disposition header on a response object.
If you have already tried that, it may not have worked because the http standard says that the quotes should be done by double-quote marks.