diff --git a/.changeset/thick-boxes-argue.md b/.changeset/thick-boxes-argue.md
new file mode 100644
index 0000000000..93cfd2ce02
--- /dev/null
+++ b/.changeset/thick-boxes-argue.md
@@ -0,0 +1,5 @@
+---
+"@core/elixir-client": patch
+---
+
+Derive Jason.Encoder for Client.ShapeDefinition
diff --git a/examples/gatekeeper-auth/api/config/dev.exs b/examples/gatekeeper-auth/api/config/dev.exs
index e65a05276b..2cbc330e20 100644
--- a/examples/gatekeeper-auth/api/config/dev.exs
+++ b/examples/gatekeeper-auth/api/config/dev.exs
@@ -29,7 +29,7 @@ config :api, ApiWeb.Endpoint,
 
 # Configure the Electric.Phoenix.Plug to route electric client requests
 # via this application's `GET /proxy/v1/shape` endpoint.
-config :electric_phoenix, electric_url: "http://localhost:#{port}/proxy"
+config :electric_phoenix, Electric.Client, base_url: "http://localhost:#{port}/proxy"
 
 # Do not include metadata nor timestamps in development logs
 config :logger, :console, format: "[$level] $message\n"
diff --git a/examples/gatekeeper-auth/api/config/runtime.exs b/examples/gatekeeper-auth/api/config/runtime.exs
index 22d83a2a82..ed41bf7cb0 100644
--- a/examples/gatekeeper-auth/api/config/runtime.exs
+++ b/examples/gatekeeper-auth/api/config/runtime.exs
@@ -69,5 +69,5 @@ if config_env() == :prod do
   default_proxy_url = URI.parse("https://#{host}:#{port}/proxy") |> URI.to_string()
   proxy_url = System.get_env("ELECTRIC_PROXY_URL") || default_proxy_url
 
-  config :electric_phoenix, electric_url: proxy_url
+  config :electric_phoenix, Electric.Client, base_url: proxy_url
 end
diff --git a/examples/gatekeeper-auth/api/config/test.exs b/examples/gatekeeper-auth/api/config/test.exs
index 0f2ada3a51..91fe8452ad 100644
--- a/examples/gatekeeper-auth/api/config/test.exs
+++ b/examples/gatekeeper-auth/api/config/test.exs
@@ -27,7 +27,7 @@ config :api, ApiWeb.Endpoint,
 
 # Configure the Electric.Phoenix.Plug to route electric client requests
 # via this application's `GET /proxy/v1/shape` endpoint.
-config :electric_phoenix, electric_url: "http://localhost:#{port}/proxy"
+config :electric_phoenix, Electric.Client, base_url: "http://localhost:#{port}/proxy"
 
 # Print only warnings and errors during test
 config :logger, level: :warning
diff --git a/examples/gatekeeper-auth/api/lib/api_web/authenticator.ex b/examples/gatekeeper-auth/api/lib/api_web/authenticator.ex
index 2c37a5b97e..dd97e692e6 100644
--- a/examples/gatekeeper-auth/api/lib/api_web/authenticator.ex
+++ b/examples/gatekeeper-auth/api/lib/api_web/authenticator.ex
@@ -1,22 +1,18 @@
 defmodule ApiWeb.Authenticator do
   @moduledoc """
-  `Electric.Client.Authenticator` implementation that generates
-  and validates tokens.
+  Functions for that generating and validating tokens.
   """
+
   alias Api.Token
-  alias Electric.Client
 
-  @behaviour Client.Authenticator
   @header_name "Authorization"
 
-  def authenticate_shape(shape, _config) do
+  # We configure our `Electric.Phoenix.Plug` handler with this function as the
+  # `authenticator` function in order to return a signed token to the client.
+  def authentication_headers(_conn, shape) do
     %{@header_name => "Bearer #{Token.generate(shape)}"}
   end
 
-  def authenticate_request(request, _config) do
-    request
-  end
-
   def authorise(shape, request_headers) do
     header_map = Enum.into(request_headers, %{})
     header_key = String.downcase(@header_name)
@@ -28,27 +24,4 @@ defmodule ApiWeb.Authenticator do
         {:error, :missing}
     end
   end
-
-  # Provides an `Electric.Client` that uses our `Authenticator`
-  # implementation to generate signed auth tokens.
-  #
-  # This is configured in `./router.ex` to work with the
-  # `Electric.Phoenix.Plug`:
-  #
-  #     post "/:table", Electric.Phoenix.Plug, client: &Authenticator.client/0
-  #
-  # Because `client/0` returns a client that's configured to use our
-  # `ApiWeb.Authenticator`, then `ApiWeb.Authenticator.authenticate_shape/2`
-  # will be called to generate an auth header that's included in the
-  # response data that the Electric.Phoenix.Plug returns to the client.
-  #
-  # I.e.: we basically tie into the `Gateway.Plug` machinery to use our
-  # `Authenticator` to generate and return a signed token to the client.
-  def client do
-    base_url = Application.fetch_env!(:electric_phoenix, :electric_url)
-
-    {:ok, client} = Client.new(base_url: base_url, authenticator: {__MODULE__, []})
-
-    client
-  end
 end
diff --git a/examples/gatekeeper-auth/api/lib/api_web/router.ex b/examples/gatekeeper-auth/api/lib/api_web/router.ex
index a43d8ca1e7..e9129021dd 100644
--- a/examples/gatekeeper-auth/api/lib/api_web/router.ex
+++ b/examples/gatekeeper-auth/api/lib/api_web/router.ex
@@ -28,7 +28,8 @@ defmodule ApiWeb.Router do
     scope "/gatekeeper" do
       pipe_through :gatekeeper
 
-      post "/:table", Electric.Phoenix.Plug, client: &Authenticator.client/0
+      post "/:table", Electric.Phoenix.Plug,
+        authenticator: &Authenticator.authentication_headers/2
     end
 
     # The proxy endpoint at `GET /proxy/v1/shape` proxies the request to an
diff --git a/examples/gatekeeper-auth/api/mix.exs b/examples/gatekeeper-auth/api/mix.exs
index e2e17d6508..75a3975a2e 100644
--- a/examples/gatekeeper-auth/api/mix.exs
+++ b/examples/gatekeeper-auth/api/mix.exs
@@ -26,7 +26,7 @@ defmodule Api.MixProject do
   defp deps do
     [
       {:bandit, "~> 1.5"},
-      {:electric_phoenix, "~> 0.1.3"},
+      {:electric_phoenix, ">= 0.2.0-rc-1"},
       {:ecto_sql, "~> 3.10"},
       {:jason, "~> 1.4"},
       {:joken, "~> 2.6"},
diff --git a/examples/gatekeeper-auth/api/mix.lock b/examples/gatekeeper-auth/api/mix.lock
index f7305c1dc1..ead03d4738 100644
--- a/examples/gatekeeper-auth/api/mix.lock
+++ b/examples/gatekeeper-auth/api/mix.lock
@@ -6,8 +6,8 @@
   "dns_cluster": {:hex, :dns_cluster, "0.1.3", "0bc20a2c88ed6cc494f2964075c359f8c2d00e1bf25518a6a6c7fd277c9b0c66", [:mix], [], "hexpm", "46cb7c4a1b3e52c7ad4cbe33ca5079fbde4840dedeafca2baf77996c2da1bc33"},
   "ecto": {:hex, :ecto, "3.12.4", "267c94d9f2969e6acc4dd5e3e3af5b05cdae89a4d549925f3008b2b7eb0b93c3", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ef04e4101688a67d061e1b10d7bc1fbf00d1d13c17eef08b71d070ff9188f747"},
   "ecto_sql": {:hex, :ecto_sql, "3.12.1", "c0d0d60e85d9ff4631f12bafa454bc392ce8b9ec83531a412c12a0d415a3a4d0", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.12", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.7", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.19 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1 or ~> 2.2", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "aff5b958a899762c5f09028c847569f7dfb9cc9d63bdb8133bff8a5546de6bf5"},
-  "electric_client": {:hex, :electric_client, "0.1.2", "1b4b2c3f53a44adaf98a648da21569325338a123ec8f00b7d26c6e3c3583ac94", [:mix], [{:ecto_sql, "~> 3.12", [hex: :ecto_sql, repo: "hexpm", optional: true]}, {:gen_stage, "~> 1.2", [hex: :gen_stage, repo: "hexpm", optional: true]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}, {:nimble_options, "~> 1.1", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:req, "~> 0.5", [hex: :req, repo: "hexpm", optional: false]}], "hexpm", "fde191b8ce7c70c44ef12a821210699222ceba1951f73c3c4e7cff8c1d5c0294"},
-  "electric_phoenix": {:hex, :electric_phoenix, "0.1.3", "5d3fef07343b3b8611ec73d1a712ccb84ae0adb2f6a7d73a44acf57ae7efab65", [:mix], [{:ecto_sql, "~> 3.10", [hex: :ecto_sql, repo: "hexpm", optional: true]}, {:electric_client, "~> 0.1.2", [hex: :electric_client, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:nimble_options, "~> 1.1", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.20", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "2b5dc8cd2d16db102035e3e59a7874ee00631aa7f6c7180f368c022884cc05fd"},
+  "electric_client": {:hex, :electric_client, "0.2.1-rc-2", "3087196645d7cb0e2f7c7b77d84828c363f9069eb1340de5ac8181dc137aaa3f", [:mix], [{:ecto_sql, "~> 3.12", [hex: :ecto_sql, repo: "hexpm", optional: true]}, {:gen_stage, "~> 1.2", [hex: :gen_stage, repo: "hexpm", optional: true]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}, {:nimble_options, "~> 1.1", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:req, "~> 0.5", [hex: :req, repo: "hexpm", optional: false]}], "hexpm", "a9dbb5e2ddb6e82e99109f226524e30980f443c6a23295ebb08ae7f675525409"},
+  "electric_phoenix": {:hex, :electric_phoenix, "0.2.0-rc-1", "c7f8f7b0db274f22b3189634e1b4e443d4cb1482527ec691ee6a0516f1eefbc2", [:mix], [{:ecto_sql, "~> 3.10", [hex: :ecto_sql, repo: "hexpm", optional: true]}, {:electric_client, "> 0.2.0", [hex: :electric_client, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:nimble_options, "~> 1.1", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.20", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "1fca7706043a9559520c44b43b7b81f62748d7513a2a1c7664b65a81919d24fd"},
   "finch": {:hex, :finch, "0.19.0", "c644641491ea854fc5c1bbaef36bfc764e3f08e7185e1f084e35e0672241b76d", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.6.2 or ~> 1.7", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 1.1", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "fc5324ce209125d1e2fa0fcd2634601c52a787aff1cd33ee833664a5af4ea2b6"},
   "hpax": {:hex, :hpax, "1.0.0", "28dcf54509fe2152a3d040e4e3df5b265dcb6cb532029ecbacf4ce52caea3fd2", [:mix], [], "hexpm", "7f1314731d711e2ca5fdc7fd361296593fc2542570b3105595bb0bc6d0fad601"},
   "jason": {:hex, :jason, "1.4.4", "b9226785a9aa77b6857ca22832cffa5d5011a667207eb2a0ad56adb5db443b8a", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "c5eb0cab91f094599f94d55bc63409236a8ec69a21a67814529e8d5f6cc90b3b"},
diff --git a/examples/gatekeeper-auth/api/test/api_web/authenticator_test.exs b/examples/gatekeeper-auth/api/test/api_web/authenticator_test.exs
index 4f19a2a3dd..ee9504bf84 100644
--- a/examples/gatekeeper-auth/api/test/api_web/authenticator_test.exs
+++ b/examples/gatekeeper-auth/api/test/api_web/authenticator_test.exs
@@ -9,13 +9,13 @@ defmodule ApiWeb.AuthenticatorTest do
       {:ok, shape} = Shape.from(%{"table" => "foo"})
 
       assert %{"Authorization" => "Bearer " <> _token} =
-               Authenticator.authenticate_shape(shape, nil)
+               Authenticator.authentication_headers(nil, shape)
     end
 
     test "validate token" do
       {:ok, shape} = Shape.from(%{"table" => "foo"})
 
-      headers = Authenticator.authenticate_shape(shape, nil)
+      headers = Authenticator.authentication_headers(nil, shape)
       assert Authenticator.authorise(shape, headers)
     end
 
@@ -26,7 +26,7 @@ defmodule ApiWeb.AuthenticatorTest do
           "where" => "value IS NOT NULL"
         })
 
-      headers = Authenticator.authenticate_shape(shape, nil)
+      headers = Authenticator.authentication_headers(nil, shape)
       assert Authenticator.authorise(shape, headers)
     end
   end
diff --git a/examples/gatekeeper-auth/docker-compose.yaml b/examples/gatekeeper-auth/docker-compose.yaml
index d5346baa35..59f85001ca 100644
--- a/examples/gatekeeper-auth/docker-compose.yaml
+++ b/examples/gatekeeper-auth/docker-compose.yaml
@@ -34,7 +34,7 @@ services:
       AUTH_SECRET: "NFL5*0Bc#9U6E@tnmC&E7SUN6GwHfLmY"
       DATABASE_URL: "postgresql://postgres:password@postgres:5432/electric?sslmode=disable"
       ELECTRIC_URL: "http://electric:3000"
-      ELECTRIC_PROXY_URL: "${ELECTRIC_PROXY_URL:-http://localhost:3000/proxy}"
+      ELECTRIC_PROXY_URL: "${ELECTRIC_PROXY_URL:-http://localhost:4000/proxy}"
       PHX_HOST: "localhost"
       PHX_PORT: 4000
       PHX_SCHEME: "http"
diff --git a/examples/phoenix-liveview/config/dev.exs b/examples/phoenix-liveview/config/dev.exs
index 4146273445..574b463020 100644
--- a/examples/phoenix-liveview/config/dev.exs
+++ b/examples/phoenix-liveview/config/dev.exs
@@ -83,5 +83,5 @@ config :phoenix_live_view,
   # Enable helpful, but potentially expensive runtime checks
   enable_expensive_runtime_checks: true
 
-config :electric_phoenix,
-  electric_url: System.get_env("ELECTRIC_URL", "http://localhost:3000/")
+config :electric_phoenix, Electric.Client,
+  base_url: System.get_env("ELECTRIC_URL", "http://localhost:3000/")
diff --git a/examples/phoenix-liveview/config/runtime.exs b/examples/phoenix-liveview/config/runtime.exs
index 6d81adcb8c..0ba9eb0330 100644
--- a/examples/phoenix-liveview/config/runtime.exs
+++ b/examples/phoenix-liveview/config/runtime.exs
@@ -96,4 +96,7 @@ if config_env() == :prod do
   #       force_ssl: [hsts: true]
   #
   # Check `Plug.SSL` for all available options in `force_ssl`.
+
+  config :electric_phoenix, Electric.Client,
+    base_url: System.get_env("ELECTRIC_URL") || raise("ELECTRIC_URL environment variable not set")
 end
diff --git a/examples/phoenix-liveview/mix.exs b/examples/phoenix-liveview/mix.exs
index 0dd2bf9022..e484bcd341 100644
--- a/examples/phoenix-liveview/mix.exs
+++ b/examples/phoenix-liveview/mix.exs
@@ -56,7 +56,7 @@ defmodule Electric.PhoenixExample.MixProject do
       {:jason, "~> 1.2"},
       {:dns_cluster, "~> 0.1.1"},
       {:bandit, "~> 1.5"},
-      {:electric_phoenix, "~> 0.1.3"}
+      {:electric_phoenix, ">= 0.2.0-rc-1"}
     ]
   end
 
diff --git a/examples/phoenix-liveview/mix.lock b/examples/phoenix-liveview/mix.lock
index dca13c3951..1c8b06d8ec 100644
--- a/examples/phoenix-liveview/mix.lock
+++ b/examples/phoenix-liveview/mix.lock
@@ -6,8 +6,8 @@
   "dns_cluster": {:hex, :dns_cluster, "0.1.3", "0bc20a2c88ed6cc494f2964075c359f8c2d00e1bf25518a6a6c7fd277c9b0c66", [:mix], [], "hexpm", "46cb7c4a1b3e52c7ad4cbe33ca5079fbde4840dedeafca2baf77996c2da1bc33"},
   "ecto": {:hex, :ecto, "3.12.4", "267c94d9f2969e6acc4dd5e3e3af5b05cdae89a4d549925f3008b2b7eb0b93c3", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ef04e4101688a67d061e1b10d7bc1fbf00d1d13c17eef08b71d070ff9188f747"},
   "ecto_sql": {:hex, :ecto_sql, "3.12.1", "c0d0d60e85d9ff4631f12bafa454bc392ce8b9ec83531a412c12a0d415a3a4d0", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.12", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.7", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.19 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1 or ~> 2.2", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "aff5b958a899762c5f09028c847569f7dfb9cc9d63bdb8133bff8a5546de6bf5"},
-  "electric_client": {:hex, :electric_client, "0.1.2", "1b4b2c3f53a44adaf98a648da21569325338a123ec8f00b7d26c6e3c3583ac94", [:mix], [{:ecto_sql, "~> 3.12", [hex: :ecto_sql, repo: "hexpm", optional: true]}, {:gen_stage, "~> 1.2", [hex: :gen_stage, repo: "hexpm", optional: true]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}, {:nimble_options, "~> 1.1", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:req, "~> 0.5", [hex: :req, repo: "hexpm", optional: false]}], "hexpm", "fde191b8ce7c70c44ef12a821210699222ceba1951f73c3c4e7cff8c1d5c0294"},
-  "electric_phoenix": {:hex, :electric_phoenix, "0.1.3", "5d3fef07343b3b8611ec73d1a712ccb84ae0adb2f6a7d73a44acf57ae7efab65", [:mix], [{:ecto_sql, "~> 3.10", [hex: :ecto_sql, repo: "hexpm", optional: true]}, {:electric_client, "~> 0.1.2", [hex: :electric_client, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:nimble_options, "~> 1.1", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.20", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "2b5dc8cd2d16db102035e3e59a7874ee00631aa7f6c7180f368c022884cc05fd"},
+  "electric_client": {:hex, :electric_client, "0.2.1-rc-1", "008db5e2b31fdee7ed53f115c7e1a6b602901a6abea1f79adb9c8a24bcfb4d11", [:mix], [{:ecto_sql, "~> 3.12", [hex: :ecto_sql, repo: "hexpm", optional: true]}, {:gen_stage, "~> 1.2", [hex: :gen_stage, repo: "hexpm", optional: true]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}, {:nimble_options, "~> 1.1", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:req, "~> 0.5", [hex: :req, repo: "hexpm", optional: false]}], "hexpm", "29142b78dfe8c29e0fff9ba5df4c75c9f41bd0d708ce0dfff530cb50117226a6"},
+  "electric_phoenix": {:hex, :electric_phoenix, "0.2.0-rc-1", "c7f8f7b0db274f22b3189634e1b4e443d4cb1482527ec691ee6a0516f1eefbc2", [:mix], [{:ecto_sql, "~> 3.10", [hex: :ecto_sql, repo: "hexpm", optional: true]}, {:electric_client, "> 0.2.0", [hex: :electric_client, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:nimble_options, "~> 1.1", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.20", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "1fca7706043a9559520c44b43b7b81f62748d7513a2a1c7664b65a81919d24fd"},
   "esbuild": {:hex, :esbuild, "0.8.1", "0cbf919f0eccb136d2eeef0df49c4acf55336de864e63594adcea3814f3edf41", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "25fc876a67c13cb0a776e7b5d7974851556baeda2085296c14ab48555ea7560f"},
   "expo": {:hex, :expo, "1.1.0", "f7b9ed7fb5745ebe1eeedf3d6f29226c5dd52897ac67c0f8af62a07e661e5c75", [:mix], [], "hexpm", "fbadf93f4700fb44c331362177bdca9eeb8097e8b0ef525c9cc501cb9917c960"},
   "file_system": {:hex, :file_system, "1.0.1", "79e8ceaddb0416f8b8cd02a0127bdbababe7bf4a23d2a395b983c1f8b3f73edd", [:mix], [], "hexpm", "4414d1f38863ddf9120720cd976fce5bdde8e91d8283353f0e31850fa89feb9e"},
diff --git a/packages/elixir-client/lib/electric/client/shape_definition.ex b/packages/elixir-client/lib/electric/client/shape_definition.ex
index 91fd4282cb..91cb58c9df 100644
--- a/packages/elixir-client/lib/electric/client/shape_definition.ex
+++ b/packages/elixir-client/lib/electric/client/shape_definition.ex
@@ -10,6 +10,8 @@ defmodule Electric.Client.ShapeDefinition do
 
   @enforce_keys [:table]
 
+  @derive {Jason.Encoder, except: [:parser]}
+
   defstruct [:namespace, :table, :columns, :where, parser: {Electric.Client.ValueMapper, []}]
 
   @schema NimbleOptions.new!(