Force display token instance page

[vbaranov]

Motivation

#7024 (comment)

• resolve 500 internal server error with non integer token id provided.

Changelog

Display token instance page even if token instance is not yet saved into the DB.

Checklist for your Pull Request (PR)

• I added an entry to CHANGELOG.md with this PR
• If I added new functionality, I added tests covering it.
• If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.
• I checked whether I should update the docs and did so by submitting a PR to https://github.com/blockscout/docs
• If I added/changed/removed ENV var, I submitted a PR to https://github.com/blockscout/docs to update the list of env vars at https://github.com/blockscout/docs/blob/master/for-developers/information-and-settings/env-variables.md and I updated the version to master in the Version column. Changes will be reflected in this table: https://docs.blockscout.com/for-developers/information-and-settings/env-variables.
• If I add new indices into DB, I checked, that they are not redundant with PGHero or other tools

[sl1depengwyn]

Request: GET /api/v2/tokens/0x495f947276749ce646f68ac8c248420045cb7b5e/instances/asd
** (exit) an exception was raised:
    ** (FunctionClauseError) no function clause matching in BlockScoutWeb.API.V2.FallbackController.call/2
        (block_scout_web 5.1.1) lib/block_scout_web/controllers/api/v2/fallback_controller.ex:6: BlockScoutWeb.API.V2.FallbackController.call(%Plug.Conn{adapter: {Plug.Cowboy.Conn, :...}, assigns: %{}, body_params: %{}, cookies: %{"AMP_6afb5a6bce" => "JTdCJTIyb3B0T3V0JTIyJTNBZmFsc2UlMkMlMjJkZXZpY2VJZCUyMiUzQSUyMjRmMTFkYzQzLTBhM2ItNDY3MS1hMjY4LWJiYWZlOTkwZDFiNSUyMiUyQyUyMmxhc3RFdmVudFRpbWUlMjIlM0ExNjcyNjQxODI0NDk2JTJDJTIyc2Vzc2lvbklkJTIyJTNBMTY3MjY0MTgyNDMxOCU3RA==", "AMP_MKTG_6afb5a6bce" => "JTdCJTIycmVmZXJyZXIlMjIlM0ElMjJodHRwJTNBJTJGJTJGbG9jYWxob3N0JTNBNDAwMCUyRmJsb2NrJTJGNzE2MDUlMkZ0cmFuc2FjdGlvbnMlMjIlMkMlMjJyZWZlcnJpbmdfZG9tYWluJTIyJTNBJTIybG9jYWxob3N0JTNBNDAwMCUyMiU3RA==", "_explorer_key" => "SFMyNTY.g3QAAAABbQAAAAtfY3NyZl90b2tlbm0AAAAYUHdTYmpVZWtNYTBuWjJlYXI1S3RWYUxo.ocYPJu-3xiflKZZ_-XPs_d4HA3kEFAN_d2LazjrwtbI", "_ga" => "GA1.1.197617740.1676378922", "_ga_LHEEE3FJ3R" => "GS1.1.1677309927.2.1.1677309931.0.0.0", "_wobserver" => "8310d1eb27fbada022d6f5153a68c9a31bf0173011acd6e0a28cdf0d55fee2d3", "chakra-ui-color-mode" => "light", "csrftoken" => "gQ6ijcSgpwzxpYRJMWAqJnKFAji8ahGI", "mp_4b03b67c70939e1e9e893e11b280c700_mixpanel" => "%7B%22distinct_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24device_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24initial_referrer%22%3A%20%22http%3A%2F%2Flocalhost%3A4000%2Fblock%2F32674%2Ftransactions%22%2C%22%24initial_referring_domain%22%3A%20%22localhost%3A4000%22%7D"}, halted: false, host: "localhost", method: "GET", owner: #PID<0.2408.0>, params: %{"address_hash" => "0x495f947276749ce646f68ac8c248420045cb7b5e", "token_id" => "asd"}, path_info: ["v2", "tokens", "0x495f947276749ce646f68ac8c248420045cb7b5e", "instances", "asd"], path_params: %{"address_hash" => "0x495f947276749ce646f68ac8c248420045cb7b5e", "token_id" => "asd"}, port: 4000, private: %{BlockScoutWeb.ApiRouter => {["api"], %{BlockScoutWeb.API.RPC.RPCTranslator => [], BlockScoutWeb.SmartContractsApiV2Router => ["v2", "smart-contracts"], RPCTranslatorForwarder => []}}, BlockScoutWeb.Router => {[], %{Absinthe.Plug => ["graphql"], Absinthe.Plug.GraphiQL => ["graphiql"], BlockScoutWeb.ApiRouter => ["api"], BlockScoutWeb.WebRouter => []}}, :before_send => [#Function<0.67058429/1 in BlockScoutWeb.Plug.Logger.call/2>, #Function<0.20795500/1 in Plug.CSRFProtection.call/2>, #Function<0.84243074/1 in Plug.Session.before_send/2>, #Function<1.71982575/1 in Phoenix.LiveReloader.before_send_inject_reloader/3>, #Function<2.129814873/1 in BlockScoutWeb.Endpoint.call/2>], :phoenix_action => :instance, :phoenix_controller => BlockScoutWeb.API.V2.TokenController, :phoenix_endpoint => BlockScoutWeb.Endpoint, :phoenix_format => "json", :phoenix_layout => {BlockScoutWeb.LayoutView, :app}, :phoenix_router => BlockScoutWeb.ApiRouter, :phoenix_view => BlockScoutWeb.API.V2.TokenView, :plug_session => %{}, :plug_session_fetch => :done}, query_params: %{}, query_string: "", remote_ip: {127, 0, 0, 1}, req_cookies: %{"AMP_6afb5a6bce" => "JTdCJTIyb3B0T3V0JTIyJTNBZmFsc2UlMkMlMjJkZXZpY2VJZCUyMiUzQSUyMjRmMTFkYzQzLTBhM2ItNDY3MS1hMjY4LWJiYWZlOTkwZDFiNSUyMiUyQyUyMmxhc3RFdmVudFRpbWUlMjIlM0ExNjcyNjQxODI0NDk2JTJDJTIyc2Vzc2lvbklkJTIyJTNBMTY3MjY0MTgyNDMxOCU3RA==", "AMP_MKTG_6afb5a6bce" => "JTdCJTIycmVmZXJyZXIlMjIlM0ElMjJodHRwJTNBJTJGJTJGbG9jYWxob3N0JTNBNDAwMCUyRmJsb2NrJTJGNzE2MDUlMkZ0cmFuc2FjdGlvbnMlMjIlMkMlMjJyZWZlcnJpbmdfZG9tYWluJTIyJTNBJTIybG9jYWxob3N0JTNBNDAwMCUyMiU3RA==", "_explorer_key" => "SFMyNTY.g3QAAAABbQAAAAtfY3NyZl90b2tlbm0AAAAYUHdTYmpVZWtNYTBuWjJlYXI1S3RWYUxo.ocYPJu-3xiflKZZ_-XPs_d4HA3kEFAN_d2LazjrwtbI", "_ga" => "GA1.1.197617740.1676378922", "_ga_LHEEE3FJ3R" => "GS1.1.1677309927.2.1.1677309931.0.0.0", "_wobserver" => "8310d1eb27fbada022d6f5153a68c9a31bf0173011acd6e0a28cdf0d55fee2d3", "chakra-ui-color-mode" => "light", "csrftoken" => "gQ6ijcSgpwzxpYRJMWAqJnKFAji8ahGI", "mp_4b03b67c70939e1e9e893e11b280c700_mixpanel" => "%7B%22distinct_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24device_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24initial_referrer%22%3A%20%22http%3A%2F%2Flocalhost%3A4000%2Fblock%2F32674%2Ftransactions%22%2C%22%24initial_referring_domain%22%3A%20%22localhost%3A4000%22%7D"}, req_headers: [{"accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"}, {"accept-encoding", "gzip, deflate, br"}, {"accept-language", "en-US,en;q=0.9,ru;q=0.8"}, {"connection", "keep-alive"}, {"cookie", "AMP_MKTG_6afb5a6bce=JTdCJTIycmVmZXJyZXIlMjIlM0ElMjJodHRwJTNBJTJGJTJGbG9jYWxob3N0JTNBNDAwMCUyRmJsb2NrJTJGNzE2MDUlMkZ0cmFuc2FjdGlvbnMlMjIlMkMlMjJyZWZlcnJpbmdfZG9tYWluJTIyJTNBJTIybG9jYWxob3N0JTNBNDAwMCUyMiU3RA==; AMP_6afb5a6bce=JTdCJTIyb3B0T3V0JTIyJTNBZmFsc2UlMkMlMjJkZXZpY2VJZCUyMiUzQSUyMjRmMTFkYzQzLTBhM2ItNDY3MS1hMjY4LWJiYWZlOTkwZDFiNSUyMiUyQyUyMmxhc3RFdmVudFRpbWUlMjIlM0ExNjcyNjQxODI0NDk2JTJDJTIyc2Vzc2lvbklkJTIyJTNBMTY3MjY0MTgyNDMxOCU3RA==; mp_4b03b67c70939e1e9e893e11b280c700_mixpanel=%7B%22distinct_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24device_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24initial_referrer%22%3A%20%22http%3A%2F%2Flocalhost%3A4000%2Fblock%2F32674%2Ftransactions%22%2C%22%24initial_referring_domain%22%3A%20%22localhost%3A4000%22%7D; chakra-ui-color-mode=light; _explorer_key=SFMyNTY.g3QAAAABbQAAAAtfY3NyZl90b2tlbm0AAAAYUHdTYmpVZWtNYTBuWjJlYXI1S3RWYUxo.ocYPJu-3xiflKZZ_-XPs_d4HA3kEFAN_d2LazjrwtbI; _wobserver=8310d1eb27fbada022d6f5153a68c9a31bf0173011acd6e0a28cdf0d55fee2d3; csrftoken=gQ6ijcSgpwzxpYRJMWAqJnKFAji8ahGI; _ga=GA1.1.197617740.1676378922; _ga_LHEEE3FJ3R=GS1.1.1677309927.2.1.1677309931.0.0.0"}, {"host", "localhost:4000"}, {"sec-ch-ua", "\"Google Chrome\";v=\"113\", \"Chromium\";v=\"113\", \"Not-A.Brand\";v=\"24\""}, {"sec-ch-ua-mobile", "?0"}, {"sec-ch-ua-platform", "\"Linux\""}, {"sec-fetch-dest", "document"}, {"sec-fetch-mode", "navigate"}, {"sec-fetch-site", "none"}, {"sec-fetch-user", "?1"}, {"upgrade-insecure-requests", "1"}, {"user-agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36"}], request_path: "/api/v2/tokens/0x495f947276749ce646f68ac8c248420045cb7b5e/instances/asd", resp_body: nil, resp_cookies: %{}, resp_headers: [{"cache-control", "max-age=0, private, must-revalidate"}, {"x-request-id", "F04cPG5dU3JgVBwAAAIG"}, {"access-control-allow-credentials", "true"}, {"access-control-allow-origin", "*"}, {"access-control-expose-headers", ""}], scheme: :http, script_name: ["api"], secret_key_base: :..., state: :unset, status: nil}, :error)
        (block_scout_web 5.1.1) lib/block_scout_web/controllers/api/v2/token_controller.ex:1: BlockScoutWeb.API.V2.TokenController.action/2
        (block_scout_web 5.1.1) lib/block_scout_web/controllers/api/v2/token_controller.ex:1: BlockScoutWeb.API.V2.TokenController.phoenix_controller_pipeline/2
        (phoenix 1.5.13) lib/phoenix/router.ex:352: Phoenix.Router.__call__/2
        (phoenix 1.5.13) lib/phoenix/router/route.ex:41: Phoenix.Router.Route.call/2
        (phoenix 1.5.13) lib/phoenix/router.ex:352: Phoenix.Router.__call__/2
        (block_scout_web 5.1.1) lib/block_scout_web/endpoint.ex:1: BlockScoutWeb.Endpoint.plug_builder_call/2
        (block_scout_web 5.1.1) lib/plug/debugger.ex:136: BlockScoutWeb.Endpoint."call (overridable 3)"/2
        (block_scout_web 5.1.1) lib/block_scout_web/endpoint.ex:1: BlockScoutWeb.Endpoint."call (overridable 4)"/2
        (block_scout_web 5.1.1) lib/spandex_phoenix.ex:151: BlockScoutWeb.Endpoint.call/2
        (phoenix 1.5.13) lib/phoenix/endpoint/ (truncated)

I suppose we need to distinguish with clause here

blockscout/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/token_controller.ex

Line 134 in 5676bd1

{token_id, ""} <- Integer.parse(token_id_str),

like {:format, {token_id, ""}} <- {:format, Integer.parse(token_id_str)}, and then non integer strings will be handled by

blockscout/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/fallback_controller.ex

Line 6 in 5676bd1

def call(conn, {:format, _}) do

[vbaranov]

Request: GET /api/v2/tokens/0x495f947276749ce646f68ac8c248420045cb7b5e/instances/asd
** (exit) an exception was raised:
    ** (FunctionClauseError) no function clause matching in BlockScoutWeb.API.V2.FallbackController.call/2
        (block_scout_web 5.1.1) lib/block_scout_web/controllers/api/v2/fallback_controller.ex:6: BlockScoutWeb.API.V2.FallbackController.call(%Plug.Conn{adapter: {Plug.Cowboy.Conn, :...}, assigns: %{}, body_params: %{}, cookies: %{"AMP_6afb5a6bce" => "JTdCJTIyb3B0T3V0JTIyJTNBZmFsc2UlMkMlMjJkZXZpY2VJZCUyMiUzQSUyMjRmMTFkYzQzLTBhM2ItNDY3MS1hMjY4LWJiYWZlOTkwZDFiNSUyMiUyQyUyMmxhc3RFdmVudFRpbWUlMjIlM0ExNjcyNjQxODI0NDk2JTJDJTIyc2Vzc2lvbklkJTIyJTNBMTY3MjY0MTgyNDMxOCU3RA==", "AMP_MKTG_6afb5a6bce" => "JTdCJTIycmVmZXJyZXIlMjIlM0ElMjJodHRwJTNBJTJGJTJGbG9jYWxob3N0JTNBNDAwMCUyRmJsb2NrJTJGNzE2MDUlMkZ0cmFuc2FjdGlvbnMlMjIlMkMlMjJyZWZlcnJpbmdfZG9tYWluJTIyJTNBJTIybG9jYWxob3N0JTNBNDAwMCUyMiU3RA==", "_explorer_key" => "SFMyNTY.g3QAAAABbQAAAAtfY3NyZl90b2tlbm0AAAAYUHdTYmpVZWtNYTBuWjJlYXI1S3RWYUxo.ocYPJu-3xiflKZZ_-XPs_d4HA3kEFAN_d2LazjrwtbI", "_ga" => "GA1.1.197617740.1676378922", "_ga_LHEEE3FJ3R" => "GS1.1.1677309927.2.1.1677309931.0.0.0", "_wobserver" => "8310d1eb27fbada022d6f5153a68c9a31bf0173011acd6e0a28cdf0d55fee2d3", "chakra-ui-color-mode" => "light", "csrftoken" => "gQ6ijcSgpwzxpYRJMWAqJnKFAji8ahGI", "mp_4b03b67c70939e1e9e893e11b280c700_mixpanel" => "%7B%22distinct_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24device_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24initial_referrer%22%3A%20%22http%3A%2F%2Flocalhost%3A4000%2Fblock%2F32674%2Ftransactions%22%2C%22%24initial_referring_domain%22%3A%20%22localhost%3A4000%22%7D"}, halted: false, host: "localhost", method: "GET", owner: #PID<0.2408.0>, params: %{"address_hash" => "0x495f947276749ce646f68ac8c248420045cb7b5e", "token_id" => "asd"}, path_info: ["v2", "tokens", "0x495f947276749ce646f68ac8c248420045cb7b5e", "instances", "asd"], path_params: %{"address_hash" => "0x495f947276749ce646f68ac8c248420045cb7b5e", "token_id" => "asd"}, port: 4000, private: %{BlockScoutWeb.ApiRouter => {["api"], %{BlockScoutWeb.API.RPC.RPCTranslator => [], BlockScoutWeb.SmartContractsApiV2Router => ["v2", "smart-contracts"], RPCTranslatorForwarder => []}}, BlockScoutWeb.Router => {[], %{Absinthe.Plug => ["graphql"], Absinthe.Plug.GraphiQL => ["graphiql"], BlockScoutWeb.ApiRouter => ["api"], BlockScoutWeb.WebRouter => []}}, :before_send => [#Function<0.67058429/1 in BlockScoutWeb.Plug.Logger.call/2>, #Function<0.20795500/1 in Plug.CSRFProtection.call/2>, #Function<0.84243074/1 in Plug.Session.before_send/2>, #Function<1.71982575/1 in Phoenix.LiveReloader.before_send_inject_reloader/3>, #Function<2.129814873/1 in BlockScoutWeb.Endpoint.call/2>], :phoenix_action => :instance, :phoenix_controller => BlockScoutWeb.API.V2.TokenController, :phoenix_endpoint => BlockScoutWeb.Endpoint, :phoenix_format => "json", :phoenix_layout => {BlockScoutWeb.LayoutView, :app}, :phoenix_router => BlockScoutWeb.ApiRouter, :phoenix_view => BlockScoutWeb.API.V2.TokenView, :plug_session => %{}, :plug_session_fetch => :done}, query_params: %{}, query_string: "", remote_ip: {127, 0, 0, 1}, req_cookies: %{"AMP_6afb5a6bce" => "JTdCJTIyb3B0T3V0JTIyJTNBZmFsc2UlMkMlMjJkZXZpY2VJZCUyMiUzQSUyMjRmMTFkYzQzLTBhM2ItNDY3MS1hMjY4LWJiYWZlOTkwZDFiNSUyMiUyQyUyMmxhc3RFdmVudFRpbWUlMjIlM0ExNjcyNjQxODI0NDk2JTJDJTIyc2Vzc2lvbklkJTIyJTNBMTY3MjY0MTgyNDMxOCU3RA==", "AMP_MKTG_6afb5a6bce" => "JTdCJTIycmVmZXJyZXIlMjIlM0ElMjJodHRwJTNBJTJGJTJGbG9jYWxob3N0JTNBNDAwMCUyRmJsb2NrJTJGNzE2MDUlMkZ0cmFuc2FjdGlvbnMlMjIlMkMlMjJyZWZlcnJpbmdfZG9tYWluJTIyJTNBJTIybG9jYWxob3N0JTNBNDAwMCUyMiU3RA==", "_explorer_key" => "SFMyNTY.g3QAAAABbQAAAAtfY3NyZl90b2tlbm0AAAAYUHdTYmpVZWtNYTBuWjJlYXI1S3RWYUxo.ocYPJu-3xiflKZZ_-XPs_d4HA3kEFAN_d2LazjrwtbI", "_ga" => "GA1.1.197617740.1676378922", "_ga_LHEEE3FJ3R" => "GS1.1.1677309927.2.1.1677309931.0.0.0", "_wobserver" => "8310d1eb27fbada022d6f5153a68c9a31bf0173011acd6e0a28cdf0d55fee2d3", "chakra-ui-color-mode" => "light", "csrftoken" => "gQ6ijcSgpwzxpYRJMWAqJnKFAji8ahGI", "mp_4b03b67c70939e1e9e893e11b280c700_mixpanel" => "%7B%22distinct_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24device_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24initial_referrer%22%3A%20%22http%3A%2F%2Flocalhost%3A4000%2Fblock%2F32674%2Ftransactions%22%2C%22%24initial_referring_domain%22%3A%20%22localhost%3A4000%22%7D"}, req_headers: [{"accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"}, {"accept-encoding", "gzip, deflate, br"}, {"accept-language", "en-US,en;q=0.9,ru;q=0.8"}, {"connection", "keep-alive"}, {"cookie", "AMP_MKTG_6afb5a6bce=JTdCJTIycmVmZXJyZXIlMjIlM0ElMjJodHRwJTNBJTJGJTJGbG9jYWxob3N0JTNBNDAwMCUyRmJsb2NrJTJGNzE2MDUlMkZ0cmFuc2FjdGlvbnMlMjIlMkMlMjJyZWZlcnJpbmdfZG9tYWluJTIyJTNBJTIybG9jYWxob3N0JTNBNDAwMCUyMiU3RA==; AMP_6afb5a6bce=JTdCJTIyb3B0T3V0JTIyJTNBZmFsc2UlMkMlMjJkZXZpY2VJZCUyMiUzQSUyMjRmMTFkYzQzLTBhM2ItNDY3MS1hMjY4LWJiYWZlOTkwZDFiNSUyMiUyQyUyMmxhc3RFdmVudFRpbWUlMjIlM0ExNjcyNjQxODI0NDk2JTJDJTIyc2Vzc2lvbklkJTIyJTNBMTY3MjY0MTgyNDMxOCU3RA==; mp_4b03b67c70939e1e9e893e11b280c700_mixpanel=%7B%22distinct_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24device_id%22%3A%20%221856278afe9595-0aff4b71eb805c-17462c6c-1fa400-1856278afea51e%22%2C%22%24initial_referrer%22%3A%20%22http%3A%2F%2Flocalhost%3A4000%2Fblock%2F32674%2Ftransactions%22%2C%22%24initial_referring_domain%22%3A%20%22localhost%3A4000%22%7D; chakra-ui-color-mode=light; _explorer_key=SFMyNTY.g3QAAAABbQAAAAtfY3NyZl90b2tlbm0AAAAYUHdTYmpVZWtNYTBuWjJlYXI1S3RWYUxo.ocYPJu-3xiflKZZ_-XPs_d4HA3kEFAN_d2LazjrwtbI; _wobserver=8310d1eb27fbada022d6f5153a68c9a31bf0173011acd6e0a28cdf0d55fee2d3; csrftoken=gQ6ijcSgpwzxpYRJMWAqJnKFAji8ahGI; _ga=GA1.1.197617740.1676378922; _ga_LHEEE3FJ3R=GS1.1.1677309927.2.1.1677309931.0.0.0"}, {"host", "localhost:4000"}, {"sec-ch-ua", "\"Google Chrome\";v=\"113\", \"Chromium\";v=\"113\", \"Not-A.Brand\";v=\"24\""}, {"sec-ch-ua-mobile", "?0"}, {"sec-ch-ua-platform", "\"Linux\""}, {"sec-fetch-dest", "document"}, {"sec-fetch-mode", "navigate"}, {"sec-fetch-site", "none"}, {"sec-fetch-user", "?1"}, {"upgrade-insecure-requests", "1"}, {"user-agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36"}], request_path: "/api/v2/tokens/0x495f947276749ce646f68ac8c248420045cb7b5e/instances/asd", resp_body: nil, resp_cookies: %{}, resp_headers: [{"cache-control", "max-age=0, private, must-revalidate"}, {"x-request-id", "F04cPG5dU3JgVBwAAAIG"}, {"access-control-allow-credentials", "true"}, {"access-control-allow-origin", "*"}, {"access-control-expose-headers", ""}], scheme: :http, script_name: ["api"], secret_key_base: :..., state: :unset, status: nil}, :error)
        (block_scout_web 5.1.1) lib/block_scout_web/controllers/api/v2/token_controller.ex:1: BlockScoutWeb.API.V2.TokenController.action/2
        (block_scout_web 5.1.1) lib/block_scout_web/controllers/api/v2/token_controller.ex:1: BlockScoutWeb.API.V2.TokenController.phoenix_controller_pipeline/2
        (phoenix 1.5.13) lib/phoenix/router.ex:352: Phoenix.Router.__call__/2
        (phoenix 1.5.13) lib/phoenix/router/route.ex:41: Phoenix.Router.Route.call/2
        (phoenix 1.5.13) lib/phoenix/router.ex:352: Phoenix.Router.__call__/2
        (block_scout_web 5.1.1) lib/block_scout_web/endpoint.ex:1: BlockScoutWeb.Endpoint.plug_builder_call/2
        (block_scout_web 5.1.1) lib/plug/debugger.ex:136: BlockScoutWeb.Endpoint."call (overridable 3)"/2
        (block_scout_web 5.1.1) lib/block_scout_web/endpoint.ex:1: BlockScoutWeb.Endpoint."call (overridable 4)"/2
        (block_scout_web 5.1.1) lib/spandex_phoenix.ex:151: BlockScoutWeb.Endpoint.call/2
        (phoenix 1.5.13) lib/phoenix/endpoint/ (truncated)

I suppose we need to distinguish with clause here

blockscout/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/token_controller.ex

Line 134 in 5676bd1

{token_id, ""} <- Integer.parse(token_id_str),

like {:format, {token_id, ""}} <- {:format, Integer.parse(token_id_str)}, and then non integer strings will be handled by

blockscout/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/fallback_controller.ex

Line 6 in 5676bd1

def call(conn, {:format, _}) do

Processed in 901519b