I'm trying to do basic social app using Firebase - each user has user's he follows and on his timeline he can see their post.
I'm using fanout technique described here
After this my data structure for user1 looks like this (it contains both - his followings and timeline):
{
"timeline": {
"user2": {
"-K-zOrtjiCGe7tgRk8DG": {
"text": "I love emojis!",
"date": "2016-09-01"
},
"-K-zOrt9a8Asdczaq23G": {
"text": "Second post!",
"date": "2016-09-03"
}
},
"user3": {
"-K-zOrtjiCGe7tgRk8DG": {
"text": "Post 3",
"date": "2016-09-02"
}
}
},
"followers": {
"user2": true,
"user3": true
}
}
The problem I have is - I don't know how to read user1 timeline with all posts from all users mixed and ordered by time. I was reading about querying and filtering from Firebase doc but I am not able to figure out the proper way to do it.
I'm developing on iOS platform but I should have no problem with other Firebase solutions as long as they are supported on Apple platform.
Related
Trying to troubleshoot an error message my app gets after sending a batchUpdate request to Google Slides API
Invalid requests[19].updateTableCellProperties: Invalid field: table_cell_properties
The 19th request in the batch is the only updateTableCellProperties request I have. If I removing the 19th request from the batch, everything works fine.
Other requests which I run in this batchUpdate with no issues are are insertTableRows, deleteTableRow, insertText, updateParagraphStyle, updateTextStyle, updateTableColumnProperties. They all work on the same table, so I use the same objectId, but depending on the request I have to specify it as tableObjectId instead of objectId.
Unsure if I am generating a wrong request for the only updateTableCellProperties request I have, or if there is a problem in the Google Slides ruby gem itself, I tried sending just this updateTableCellProperties request from the Google Slides API explorer which has some validation on the request structure. So I sent this updateTableCellProperties batchUpdate request
{
"requests": [
{
"updateTableCellProperties": {
"objectId": "gf9d8fea71f_22_1",
"tableRange": {
"location": {
"columnIndex": 0,
"rowIndex": 1
}
},
"fields": "tableCellProperties",
"tableCellProperties": {
"tableCellBackgroundFill": {
"solidFill": {
"color": {
"themeColor": "LIGHT1"
}
}
}
}
}
}
]
}
And I got this error:
{
"error": {
"code": 400,
"message": "Invalid requests[0].updateTableCellProperties: Invalid field: table_cell_properties",
"status": "INVALID_ARGUMENT"
}
}
Why is this updateTableCellProperties request reported as invalid? I am also confused by the output of the error message as it mentions table_cell_properties in snake case, while the documentation only mentions tableCellProperties in camel case, and my request also only mentions tableCellProperties in camel case. I am only aware of the ruby gems translating between snake case and camel case, but this is not relevant to the API Explorer.
The error Invalid field: table_cell_properties originates from the erroneously specified fields property
See documentation:
fields
At least one field must be specified. The root tableCellProperties is implied and should not be specified. A single "*" can be used as short-hand for listing every field.
So you need to modify fields
from
"fields": "tableCellProperties"
to
"fields": "tableCellBackgroundFill.solidFill.color"
or to
"fields": "*"
There is a second problem with your request:
When specifying the table range, it is required to set the properties rowSpan and columnSpan.
A complete, correct request would be:
{
"requests": [
{
"updateTableCellProperties": {
"objectId": "gf9d8fea71f_22_1",
"tableRange": {
"location": {
"columnIndex": 0,
"rowIndex": 1
},
"rowSpan": 1,
"columnSpan": 1
},
"fields": "tableCellBackgroundFill.solidFill.color",
"tableCellProperties": {
"tableCellBackgroundFill": {
"solidFill": {
"color": {
"themeColor": "LIGHT1"
}
}
}
}
}
}
]
}
I am using API version 2.0 and unable to fetch the user.fields results. All other parameters seem to be returning results correctly. I'm following this documentation.
url = "https://api.twitter.com/2/tweets/search/all"
query_params = {
"query": "APPL",
"max_results": "10",
"tweet.fields": "created_at,lang,text,author_id",
"user.fields": "name,username,created_at,location",
"expansions": "referenced_tweets.id.author_id",
}
response = requests.request("GET", url, headers=headers, params=query_params).json()
Sample result:
{
'author_id': '1251347502013521925',
'text': 'All conspiracy. But watch for bad news on Apple. Such a vulnerable stocktechnically for the biggest market cap # $2.1T ( Thanks Jay). This is the glue for the bulls. But, they stopped innovating when Steve died, built a fancy office and split the stock. $appl',
'lang': 'en',
'created_at': '2021-06-05T02:33:48.000Z',
'id': '1401004298738311168',
'referenced_tweets': [{
'type': 'retweeted',
'id': '1401004298738311168'
}]
}
As you can see, the following information is not returned: name, username, and location.
Any idea how to retrieve this info?
Your query does actually return the correct data. I tested this myself.
A full example response will be structured like this:
{
"data": [
{
"created_at": "2021-06-05T02:33:48.000Z",
"lang": "en",
"id": "1401004298738311168",
"text": "All conspiracy. But watch for bad news on Apple. Such a vulnerable stocktechnically for the biggest market cap # $2.1T ( Thanks Jay). This is the glue for the bulls. But, they stopped innovating when Steve died, built a fancy office and split the stock. $appl",
"author_id": "1251347502013521925",
"referenced_tweets": [
{
"type": "retweeted",
"id": "1401004298738311168"
}
]
}
],
"includes": {
"users": [
{
"name": "Gary Casper",
"id": "1251347502013521925",
"username": "Hisel1979",
"created_at": "2020-07-11T13:39:58.000Z"
}
]
}
}
The sample result you provided comes from within the data object. However, the expanded object data will be nested in the includes object (in your case name, username, and location). The corresponding user object can be referenced via the author_id field.
My issue looks very similar to:
Microsoft Graph API OnlineMeetings Error - Expected not null\r\nParameter name: meeting
However the posted solution is not working for me. Presently I'm using postman and posting to:
https://graph.microsoft.com/v1.0/users/MyAzureUserObjectID/onlineMeetings
Currently this is my body:
{
"startDateTime":"2021-07-12T14:30:34.2444915-07:00",
"endDateTime":"2021-07-12T15:00:34.2464912-07:00",
"subject":"Application Token Meeting 2",
"participants": {
"organizer": {
"identity": {
"user": {
"id": "MyAzureUserObjectIDHere"
}
}
}
}
}
I've tried a few variations of participants and fields but always get:
{
"error": {
"code": "InvalidArgument",
"message": "Expected not null\r\nParameter name: meeting",
"innerError": {
"request-id": "3ea5c99c-a346-4c3a-8f38-dcdc9fb4d864",
"date": "2021-03-23T19:59:28",
"client-request-id": "3ea5c99c-a346-4c3a-8f38-dcdc9fb4d864"
}
}
}
returned. Has anyone had a similar issue/have any idea what I might do get this to work?
Thanks.
I had the same problem which also wasn't resolved by simply adding the participant.
The thing that fixed it for me was using the correct content type in the header. As I had started with the starter project from Microsoft Teams, I had copied and pasted some of their example code for the meeting request. You need to use 'Content-type': 'application/json'.
Also for the body, I had to use JSON.stringify around it to get it to function correctly.
When using the youtube API to get the list of my subscriptions and all the related details I get a number of information from the snippet and contentDetails part of the response object.
When I call the service from my script the contentDetails.newItemCount always return zero, this should indicate the number of new videos on the channel since last time I've opened the channel. The contentDetails.totalItemCount (total number of videos for the channel) is accurate instead.
In contrast if I run the same query through the google api explorer, the same variable contains the correct information and not zero.
The call I make from my PHP script is exactly the same as the one run on the google api explorer so I can't explain or understand why I'm getting different results. The code I use is roughly the following
$this->_youtube = new Google_Service_YouTube($this->_connector->_googleClient);
$params = array('mine' => true,'maxResults'=>25,'order'=>'alphabetical');
$part = 'snippet,contentDetails';
$response = $this->_youtube->subscriptions->listSubscriptions(
$part,
$params
);
foreach ($response['items'] as $item) {
$this->_mysubscriptions[] = array(
'channelId'=>$item['snippet']['resourceId']['channelId'],
'title'=>$item['snippet']['title'],
'description'=>$item['snippet']['description'],
'thumb_default'=>$item['snippet']['thumbnails']['default']['url'],
'thumb_medium'=>$item['snippet']['thumbnails']['medium']['url'],
'thumb_high'=>$item['snippet']['thumbnails']['high']['url'],
'subscribedOn'=>$this->cleanDate($item['snippet']['publishedAt']),
'totalVideos'=>$item['contentDetails']['totalItemCount'],
'newVideos'=>$item['contentDetails']['newItemCount']);
}
This is how the object returned looks like (just removed few IDs from the response) from the google API explorer, while when I run it through my code I get the same data but the newItemCount is zero.
{
"kind": "youtube#subscription",
"snippet": {
"publishedAt": "2016-09-14T12:48:00.000Z",
"title": "Muselk",
"description": "\"Memes win games\" - Youtube.com/mrmuselk",
"resourceId": {
"kind": "youtube#channel",
"channelId": "UCd534c_ehOvrLVL2v7Nl61w"
},
"thumbnails": {
"default": {
"url": "https://yt3.ggpht.com/-iWlz7dePNz0/AAAAAAAAAAI/AAAAAAAAAAA/smtPKh-RLTU/s88-c-k-no-mo-rj-c0xffffff/photo.jpg"
},
"medium": {
"url": "https://yt3.ggpht.com/-iWlz7dePNz0/AAAAAAAAAAI/AAAAAAAAAAA/smtPKh-RLTU/s240-c-k-no-mo-rj-c0xffffff/photo.jpg"
},
"high": {
"url": "https://yt3.ggpht.com/-iWlz7dePNz0/AAAAAAAAAAI/AAAAAAAAAAA/smtPKh-RLTU/s240-c-k-no-mo-rj-c0xffffff/photo.jpg"
}
}
},
"contentDetails": {
"totalItemCount": 792,
"newItemCount": 4,
"activityType": "all"
}
I've looked through the revision history but can't find any reference of modifications made to this specific property of the contentDetails object
There is a bug filed with google on this property but it refers to a different behaviour.
Wondering if this happens to other as well, or if somebody can give some hints on how this works or don't.
I use Firebase Database, I have a list of cards, I need to monitor some cards if they are deleted. I tried to do this with ref.observe (.childRemoved), but this is not appropriate for my case, since some data can be deleted by the cardholder, and then this block will fire several times, I need to watch if the entire card was deleted. How can I do that?
My reference
let ref = FIRDatabase.database().reference().child(MainGateways.cards.rawValue).child(card.id)
My cards structure
"cards": {
"-Khv9rUVwErNHBzXcruO": {
"additionalInfo": {
"note": ""
},
"dateProperties": {
"day": "Flex",
"isFlexDate": true,
"isFlexTime": true,
"iso8601": "",
"time": ""
},
"interestedUsers": {
"NfM26A2YcPUFz8rfYa23Kr3mjCO2": {
"isApproved": false,
"isNew": true,
"isoDate": "2017-04-17T13:08:41+04:00",
"userID": "NfM26A2YcPUFz8rfYa23Kr3mjCO2",
"userItchableName": "Alexsander K."
}
},
"isNewPendingRequest": true,
"isPrivateStatus": false,
"isTest": false,
"ownerID": "1Cix149ThIOG1ULPVjyy0LyTxbe2",
"peopleProperties": {
"availableSeats": 1,
"numberOfPeople": 1,
"numberOfPeopleDescription": "1 person"
},
"title": "Genius Lounge and Sake Bar",
"userName": "Tim C.",
"version": 1
},
I also tried to make such a link, but then this block works if any card was removed from the list.
guard let ref = FIRDatabase.database().reference().child(MainGateways.cards.rawValue).child(card.id).parent else { return }
Look into Cloud Functions for Firebase. Using that, you can write JavaScript code that acts in response to database changes at the path you specify. This allows you to write logic independent of the client app to react to changes in the database.