single() returns Invalid media type: expected no more input.

[Mykyta-Chernenko]

Describe the bug
When single() doesn't find anything, I get "Invalid media type: expected no more input."

full error
flutter: Event: MatchError, Properties: {error: Error on line 1, column 32: Invalid media type: expected no more input.
╷
1 │ application/json; charset=utf-8,application/vnd.pgrst.object+json; charset=utf-8
│ ^
╵}
flutter: Error fetching match: Error on line 1, column 32: Invalid media type: expected no more input.
╷
1 │ application/json; charset=utf-8,application/vnd.pgrst.object+json; charset=utf-8
│ ^
╵

To Reproduce
Steps to reproduce the behavior:

1. install supabase_flutter: ^2.5.1
2. try to call do something as
   await supabase
   .from('profile')
   .select()
   .eq('id', 'gibberish')
   .single();
3. See error

Expected behavior
Some ordinary exception as "not found"

Version (please complete the following information):
├── supabase_flutter 2.5.1
│ ├── supabase 2.1.1
│ │ ├── functions_client 2.0.0
│ │ ├── gotrue 2.6.0
│ │ ├── postgrest 2.1.1
│ │ ├── realtime_client 2.0.4
│ │ ├── storage_client 2.0.1

[allipiopereira]

I'm also having the same error.

supabase: 1.11.11
supabase_flutter: 1.10.24

[Vinzent03]

Is that all stacktrace you get? Shouldn't there be some info about in which file and line it occurs?

[Mykyta-Chernenko]

unfortunately and surprisingly, this is the whole stack, I don't get anything else.
UPD

sorry, my bad, forgot to rethrow, here is the whole stack.

[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Error on line 1, column 32: Invalid media type: expected no more input.
╷
1 │ application/json; charset=utf-8,application/vnd.pgrst.object+json; charset=utf-8
│ ^
╵
#0 wrapFormatException (package:http_parser/src/utils.dart:15:5)
#1 new MediaType.parse (package:http_parser/src/media_type.dart:46:7)
#2 _contentTypeForHeaders (package:http/src/response.dart:79:45)
#3 _encodingForHeaders (package:http/src/response.dart:72:24)
#4 Response.body (package:http/src/response.dart:28:22)
#5 PostgrestBuilder._parseResponse (package:postgrest/src/postgrest_builder.dart:269:31)
#6 PostgrestBuilder._execute (package:postgrest/src/postgrest_builder.dart:164:14)

#7 PostgrestBuilder.then (package:postgrest/src/postgrest_builder.dart:372:24)

Is that all stacktrace you get? Shouldn't there be some info about in which file and line it occurs?

[Smartiiez]

I think you have to use :
await supabase.from('profile').select().eq('id', 'gibberish').maybeSingle();

[Mykyta-Chernenko]

I think you have to use : await supabase.from('profile').select().eq('id', 'gibberish').maybeSingle();

It's possible temporary solution

but with 30 .single() queries in prod, it was almost impossible to debug the first time where the issue happened at/neither to catch it

[dshukertjr]

@Mykyta-Chernenko @allipiopereira
Hmm, I am unable to reproduce this issue. When I use .single() and query in a way that it returns 0 rows, I get the following error.

PostgrestException(message: JSON object requested, multiple (or no) rows returned, code: PGRST116, details: The result contains 0 rows, hint: null).

Are you using the hosted version of Supabase? Does the same issue happen on a fresh Supabase instance?

[Mykyta-Chernenko]

@Mykyta-Chernenko @allipiopereira Hmm, I am unable to reproduce this issue. When I use .single() and query in a way that it returns 0 rows, I get the following error.

PostgrestException(message: JSON object requested, multiple (or no) rows returned, code: PGRST116, details: The result contains 0 rows, hint: null).

Are you using the hosted version of Supabase? Does the same issue happen on a fresh Supabase instance?

I get the error like this.

   final response = await supabase
        .from('app_settings')
        .select('review_version_ios, review_version_android')
        .single();
    
    id is non-existent
    
    I get 
    
    [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Error on line 1, column 32: Invalid media type: expected no more input.
  ╷
1 │ application/json; charset=utf-8,application/vnd.pgrst.object+json; charset=utf-8
  │                                ^
  ╵
#0      wrapFormatException (package:http_parser/src/utils.dart:15:5)
#1      new MediaType.parse (package:http_parser/src/media_type.dart:46:7)
#2      _contentTypeForHeaders (package:http/src/response.dart:79:45)
#3      _encodingForHeaders (package:http/src/response.dart:72:24)
#4      Response.body (package:http/src/response.dart:28:22)
#5      PostgrestBuilder._parseResponse (package:postgrest/src/postgrest_builder.dart:269:31)
#6      PostgrestBuilder._execute (package:postgrest/src/postgrest_builder.dart:164:14)
<asynchronous suspension>
#7      PostgrestBuilder.then (package:postgrest/src/postgrest_builder.dart:372:24)
<asynchronous suspension>

I use supabase hosted version.

I tried to restart the db, the issue is still there

I created a new db with the minimum migration, the issue is still there

here is the migration I applied to the fresh db

-- Migration for the app_settings table
create table if not exists app_settings
(
    id                     serial primary key,
    review_version         text not null,
    review_version_android text not null,
    review_version_ios     text not null,
    version                text not null
);

I use Frankfurt region.

Thanks for you help!

[Dosenbiiir]

I get the same error message, so I can confirm that. Also I get the same message if .single() is used and multiple results are returned. I tested supabase_flutter: ^2.3.4 and ^2.5.3.

[blank124]

Having same issue

[dshukertjr]

Anyone facing this issue, would you be able to let me know what version of PostgREST you are running on the Supabase instance?

[Mykyta-Chernenko]

Anyone facing this issue, would you be able to let me know what version of PostgREST you are running on the Supabase instance?

Auth version
2.152.1
PostgREST version
12.0.2
Postgres version
15.1.1.44

[dshukertjr]

Hmm, I aligned the PostgREST version, but am still unable to reproduce the issue.

Is anyone willing to share their Supabase URL and Anon key so that I can make the query on my end to dig into this issue? Feel free to DM me on Twitter if you are not comfortable sharing them here.
https://x.com/dshukertjr