Support JSON from Elixir 1.18

[gmile]

I noticed failures in logs like such:

19:25:47.333 request_id=GCc7cySWL7wohx4AAF_h profile_id=a03c7920-ed38-44fd-b132-7be210d95789 [error] Handler ErrorTracker.Integrations.Phoenix has failed and has been detached. Class=:error
Reason=:undef
Stacktrace=[
  {JSON, :encode_to_iodata,
   [
     %{
       "request.headers" => %{
         "accept" => "*/*",
         "accept-encoding" => "gzip, deflate, br, zstd",
         "accept-language" => "pl,en-US;q=0.7,en;q=0.3",
         "authorization" => "Token …”,
         "host" => “my-app.com”,
         "origin" => "my-app.com",
         "referer" => "my-app.com/contracts?sortBy=%21createdAt&type=ALL",
         "sec-fetch-dest" => "empty",
         "sec-fetch-mode" => "cors",
         "sec-fetch-site" => "same-site",
         "te" => "trailers",
         "user-agent" => "Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0",
         "x-forwarded-for" => "213.55.186.170",
         "x-forwarded-host" => "my-app.com",
         "x-forwarded-port" => "443",
         "x-forwarded-proto" => "https",
         "x-forwarded-server" => "traefik-569dbb7c88-l2nh5",
         "x-real-ip" => "213.55.186.170"
       },
       "request.host" => "my-app.com",
       "request.ip" => "213.55.186.170",
       "request.method" => "GET",
       "request.params" => %{},
       "request.path" => “/some/path”,
       "request.query" => ""
     }
   ], []},
  {ErrorTracker.Occurrence, :validate_context, 1,
   [file: ~c"lib/error_tracker/schemas/occurrence.ex", line: 56]},
  {ErrorTracker.Occurrence, :changeset, 2,
   [file: ~c"lib/error_tracker/schemas/occurrence.ex", line: 35]},
  {ErrorTracker, :"-upsert_error!/5-fun-1-", 5,
   [file: ~c"lib/error_tracker.ex", line: 325]},
  {Ecto.Adapters.SQL, :"-checkout_or_transaction/4-fun-0-", 3,
   [file: ~c"lib/ecto/adapters/sql.ex", line: 1400]},
  {DBConnection, :run_transaction, 4,
   [file: ~c"lib/db_connection.ex", line: 1756]},
  {ErrorTracker, :upsert_error!, 5, [file: ~c"lib/error_tracker.ex", line: 307]},
  {ErrorTracker, :report, 3, [file: ~c"lib/error_tracker.ex", line: 145]},
  {ErrorTracker.Integrations.Plug, :report_error, 3,
   [file: ~c"lib/error_tracker/integrations/plug.ex", line: 102]},
  {:telemetry, :"-execute/3-fun-0-", 4,
   [file: ~c"/app/deps/telemetry/src/telemetry.erl", line: 167]},
  {:lists, :foreach_1, 2, [file: ~c"lists.erl", line: 2310]},
  {Phoenix.Router, :__call__, 5, [file: ~c"lib/phoenix/router.ex", line: 496]},
  {MyApp.Endpoint, :plug_builder_call, 2,
   [file: ~c"lib/my_app/endpoint.ex", line: 1]},
  {MyApp.Endpoint, :call, 2,
   [file: ~c"lib/my_app/endpoint.ex", line: 1]},
  {Bandit.Pipeline, :call_plug!, 2,
   [file: ~c"lib/bandit/pipeline.ex", line: 129]},
  {Bandit.Pipeline, :run, 4, [file: ~c"lib/bandit/pipeline.ex", line: 40]},
  {Bandit.HTTP1.Handler, :handle_data, 3,
   [file: ~c"lib/bandit/http1/handler.ex", line: 12]},
  {Bandit.DelegatingHandler, :handle_data, 3,
   [file: ~c"lib/bandit/delegating_handler.ex", line: 18]},
  {Bandit.DelegatingHandler, :handle_info, 2,
   [file: ~c"lib/bandit/delegating_handler.ex", line: 8]},
  {:gen_server, :try_handle_info, 3, [file: ~c"gen_server.erl", line: 2345]},
  {:gen_server, :handle_msg, 6, [file: ~c"gen_server.erl", line: 2433]},
  {:proc_lib, :init_p_do_apply, 3, [file: ~c"proc_lib.erl", line: 329]}
]

Turns out:

1. I set JSON as a value for json_encoder configuration for postgrex,
2. error-tracker uses postgrex json_encoder to encode values,
3. error-tracker attempts to use encode_to_iodata/1,
4. a function with such name is not implemented by JSON module; encode_to_iodata!/1 (with a bang) is

It would be wonderful if error-tracker could support using JSON module.

[crbelaus]

Thanks for the heads up @gmile!

Indeed this is a bug. We didn't notice that JSON only exposes encode_to_iodata! while Jason also exposes encode_to_iodata/1 (without the bang). I'll create a fix shortly.