I currently have an application that works with Firebase.
I repeatedly load profile pictures. However the link is quite long, it consumes a certain amount of data. To reduce this load, I would like to put the link in raw and only load the token that is added to the link.
To explain, a link looks like this: “https://firebasestorage.googleapis.com/v0/b/fir-development.appspot.com/o/9pGveKDGphYVNTzRE5U3KTpSdpl2?alt=media&token=f408c3be-07d2-4ec2-bad7-acafedf59708”
So I would like to put in gross: https://firebasestorage.googleapis.com/v0/b/fir-developpement.appspot.com/o/
In continuation: “9pGveKDGphYVNTzRE5U3KTpSdpl2” which is the UID of the user that I recover already and the or my problem this poses: “alt = media & token = f408c3be-07d2-4ec2-bad7-acafedf59708” which adds randomly for each photo .
I would like to get back only this last random piece …
Is it possible ?
Thank you
UP : 01/11 Still no solution
It's not supported to break apart and reassemble download URLs. You should be treating these strings as if their implementation details might change without warning.
Related
I would like to understand better Firebase Dynamic Links because i am very new to this subject.
What i would like to know :
FirebaseDynamicLinks.instance.getInitialLink() is supposed to return "only" the last dynamic link created with the "initial" url (before it was shorten) ?
Or why FirebaseDynamicLinks.instance.getInitialLink() doesn't take a String url as a parameter ?
FirebaseDynamicLinks.instance.getDynamicLink(String url) doesn't read custom parameters if the url was shorten, so how can we retrieve custom parameters from a shorten link ?
My use case is quite simple, i am trying to share an object through messages in my application, so i want to save the dynamic link in my database and be able to read it to run a query according to specific parameters.
FirebaseDynamicLinks.instance.getInitialLink() returns the link that opened the app and if the app was not opened by a dynamic link, then it will return null.
Future<PendingDynamicLinkData?> getInitialLink()
Attempts to retrieve the dynamic link which launched the app.
This method always returns a Future. That Future completes to null if
there is no pending dynamic link or any call to this method after the
the first attempt.
https://pub.dev/documentation/firebase_dynamic_links/latest/firebase_dynamic_links/FirebaseDynamicLinks/getInitialLink.html
FirebaseDynamicLinks.instance.getInitialLink() does not accept a string url as parameter because it is just meant to return the link that opened the app.
Looks like there's no straightforward answer to getting the query parameters back from a shortened link. Take a look at this discussion to see if any of the workarounds fit your use case.
I am trying to make some further adjustments to an address text field. But the problem is that its made with airtable. I want to get the input of that address and use it to get some data from zillow API for the user. How can I do this? I have viewed the source HTML and I only see the airtable script.
This probably went unanswered for being too vague. I'll try to leave some pointers if anyone stumbles upon this in the future.
Are you the host of the WP page? do you have access to the Airtable base in question? Is the "frontend" viewable? Airtable's API is pretty well-documented, simple as it may be. Whatever you need, if it's from a shared view, it can be fetched with a curl request.
Other than that,if the base is public, or shared publicly, and particularly if you need this data at a steady rate or in larger quantities, you'd be better off requesting access and collecting the information with a script from the Scripting app. Since ES6, this is as trivial as doing something like
let query = await base.getTable
(cursor.activeTableId)
.selectRecordsAsync()
let payload, selectAll = query.records.map(rec => rec.name),
selectAll ?
payload = { records: JSON.stringify(selectAll) }
: console.error('something went wrong')
remoteFetchAsync(('your scraping endpoint', payload)=>
//rock'n'roll past this point
})
I have a Firestore that has a User Document. When a User uploads a profile image to the bucket I resize it in the Cloud Function and then save the smaller thumbnail of it. Now I am not sure what the best practice is to receive the Download URL for it, there are 2 possibilities:
In the Cloud Function get a Signed URL and store it in the Users Document or
Get the download url on the frontend with the .getDownloadUrl() method.
The problems I have with either solution is
1: The URL is really big, getting multiple Users on a Page this adds up in more size than the actual rest of the User Document
2: In terms of speed im not sure if its the best to loop through a list of Users to get each's thumbnail download URL, but the advantage is I do not have to deal with normalizing the new Profile Pic URL one every occurrence in the database.
The URL is not that that big. Before trying to optimize, first collect some clear benchmarks that suggest the size of the URL is seriously impacting the performance of the page. Don't optimize this if it doesn't need it. I've never heard of anyone complaining that a download URL is bad for performance.
You don't need to loop over all users. You should arrange to have the UID of the user available at the time of the resize, so you can update the correct user. You can put the UID in the path of the file upload and parse it out, or you can put the UID in object metadata at the time of the upload.
Either approach is valid, though. Pick the one that suits you the best. Generating it on the backend is probably more resilient to errors.
As Doug Stevenson mentioned in his answer, I also think you are trying to optimize something that's not even a performance or storage problem. However, if you still want to optimize the size of your URL, I have two solutions for you.
As we already know, the URL of a picture looks similar to this:
https://firebasestorage.googleapis.com/v0/b/project-id/o/images_folder%2vvTMvCsCRsckpR3R5Qg2s.jpg?alt=media&token=2277f575-8ff7-2211-8262-a28ef679d703
So the first solution would be to shorten the links using a service like tiny.cc. There are also other examples but I think you get the idea. So in case of the URL above, after you shorten it, will look like this:
http:// tiny.cc /2r4ucz
The second solution requires the saving two things in your database. It is not about shorten the link, it's about storing less data. So as you can see, the URL above is combined from a "BASE_URL":
https://firebasestorage.googleapis.com/v0/b/project-id/o/images_folder
Which includes the name of your project and the name of the folder where you store the images. It also contains the name of the image, which in my case is an id that is generated by Firestore and it's by definion unique. And the last part is the token id:
2277f575-8ff7-2211-8262-a28ef679d703
So the second solution would be to store in your database only the id of the image and the token and then reconstruct the entire URL client side. So in the example above the only things that you should store are:
Firestore-root
|
--- users (collection)
|
--- uid (document)
|
--- id: vvTMvCsCRsckpR3R5Qg2s
|
--- token: 2277f575-8ff7-2211-8262-a28ef679d703
|
--- //Other user details
If your user will always have a single picture then you can use instead of that random id, the uid that is coming from the authentication processs:
String uid = FirebaseAuth.getInstance().getCurrentUser().getUid();
I am trying to query firebase where I have used simple login to differentiate between users. As such firebase looks like this:
users/simplelogin:*/favouritecolour
favouritecolour looks like {0: blue, 1: red, 2: green}
I want to be able to query for all users with the same favouritecolour and send their profile information back to be displayed on the web page.
users/simplelogin:*/profileinformation
The problem I have is that simple login uses authData.uid for "simplelogin:*" and as such it is different for each user. I want to look through all users. I am not sure how to reference the path to just the favouritecolour for each user, as when querying I don't want to have to search the entire database. I have looked for a wildcard token to use in the path name. I have also looked at relative path definitions, where one may be able to skip over branches in a path. No luck. What code do I need to write to return profileinformation as a snapshot for all profiles matching favouritecolour red?
Thanks for your help.
You need to organize data according to how they are going to be accessed, not according to how "it makes sense" in traditional relational DB. This also includes data duplication and non-normalization.
Take a look at this.
So, you also need to keep something like this:
/favouritecolor/{color}/ --> { user1, user2, user3 }
Does Google have an API with a function which will verify if a specific phrase can be found at a given url?
Say I have a webpage url: www.mysite/2011/01/check-if-phrase-exists
I want to know if the phrase foobar exists somewhere on that document (it can be anywhere on the html document - not just "readable text").
The function/api would return True or False.
Question Update The "method" should avoid me from having to retrieve the entire page to my server and search myself. It is the fetching of the webpage to my server that I am trying to avoid (to cut down on bandwidth).
I don't think they do, but you could do this yourself without much code (this is adapted from the App Engine docs):
import urllib2
url = "http://www.google.com/"
try:
result = urllib2.urlopen(url)
my_search_function(result)
# or perhaps my_search_function(result.content)
except urllib2.URLError, e:
handleError(e)
Then you can just define my_search_function(text) to do what you need