From c4ca6ba2b5d45f333f33712081dc03af07b4eb55 Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Mon, 19 Aug 2019 11:34:04 +0300
Subject: [PATCH 01/14] Fix error of url in API page

---
 apps/block_scout_web/assets/js/lib/try_api.js              | 2 +-
 apps/block_scout_web/assets/js/lib/try_eth_api.js          | 5 +++--
 .../lib/block_scout_web/views/api_docs_view.ex             | 7 ++++---
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/apps/block_scout_web/assets/js/lib/try_api.js b/apps/block_scout_web/assets/js/lib/try_api.js
index c0eb8cd5e3..e6460f6c6b 100644
--- a/apps/block_scout_web/assets/js/lib/try_api.js
+++ b/apps/block_scout_web/assets/js/lib/try_api.js
@@ -124,7 +124,7 @@ $('button[data-try-api-ui-button-type="execute"]').click(event => {
   }
 
   $.ajax({
-    url: `/api${query}`,
+    url: composeRequestUrl(query),
     success: (_data, _status, xhr) => {
       handleSuccess(query, xhr, clickedButton)
     },
diff --git a/apps/block_scout_web/assets/js/lib/try_eth_api.js b/apps/block_scout_web/assets/js/lib/try_eth_api.js
index a3dd7b6f4e..f6e1adffae 100644
--- a/apps/block_scout_web/assets/js/lib/try_eth_api.js
+++ b/apps/block_scout_web/assets/js/lib/try_eth_api.js
@@ -50,7 +50,6 @@ $('button[data-try-eth-api-ui-button-type="execute"]').click(event => {
   const inputs = $(`input[data-selector="${module}-${action}-try-api-ui"]`)
   const params = $.map(inputs, parseInput)
   const formData = wrapJsonRpc(action, params)
-  console.log(formData)
   const loadingText = '<span class="loading-spinner-small mr-2"><span class="loading-spinner-block-1"></span><span class="loading-spinner-block-2"></span></span> Loading...'
 
   clickedButton.prop('disabled', true)
@@ -60,8 +59,10 @@ $('button[data-try-eth-api-ui-button-type="execute"]').click(event => {
     clickedButton.html(loadingText)
   }
 
+  const url = $('[data-endpoint-url]').attr('data-endpoint-url')
+
   $.ajax({
-    url: '/api/eth_rpc',
+    url: url,
     type: 'POST',
     data: JSON.stringify(formData),
     dataType: 'json',
diff --git a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
index ac7d4d55ee..895fad79c2 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
@@ -1,7 +1,7 @@
 defmodule BlockScoutWeb.APIDocsView do
   use BlockScoutWeb, :view
 
-  alias BlockScoutWeb.{Endpoint, LayoutView}
+  alias BlockScoutWeb.LayoutView
 
   def action_tile_id(module, action) do
     "#{module}-#{action}"
@@ -41,9 +41,10 @@ defmodule BlockScoutWeb.APIDocsView do
     scheme = url_params[:scheme]
 
     if host != "localhost" do
-      scheme <> "://" <> host <> path
+      "#{scheme}://#{host}#{path}"
     else
-      Endpoint.url()
+      port = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)[:http][:port]
+      "#{scheme}://#{host}:#{to_string(port)}#{path}"
     end
   end
 

From 7270b32ffb959ade1480a945b6a578bf3eeb251e Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Mon, 19 Aug 2019 11:43:56 +0300
Subject: [PATCH 02/14] Add double quotes to example of API call

---
 .../block_scout_web/templates/api_docs/_eth_rpc_item.html.eex   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/_eth_rpc_item.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/_eth_rpc_item.html.eex
index 7f342b4a16..57f96e42e0 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/_eth_rpc_item.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/_eth_rpc_item.html.eex
@@ -6,7 +6,7 @@
       <span class="api-doc-list-item-query api-text-monospace api-text-monospace-background btn" 
         data-clipboard-text="curl -X POST --data '{&quot;id&quot;:0,&quot;jsonrpc&quot;:&quot;2.0&quot;,&quot;method&quot;: &quot;<%= @action %>&quot;, params: []}'"
       >
-        curl -X POST --data '{"id":0,"jsonrpc":"2.0","method": "<%= @action %>", params: []}'
+        curl -X POST --data '{"id":0,"jsonrpc":"2.0","method": "<%= @action %>", "params": []}'
       </span>
       <p class="api-doc-list-item-text">
         <div class="tile tile-muted p-1">

From 13058bea30d7afc79f9303bcd4f72b57b8a20166 Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Mon, 19 Aug 2019 11:47:51 +0300
Subject: [PATCH 03/14] add changelog entry

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f006769dbf..649b476ec3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 - [#2497](https://github.com/poanetwork/blockscout/pull/2497) - Add generic Ordered Cache behaviour and implementation
 
 ### Fixes
+- [#2591](https://github.com/poanetwork/blockscout/pull/2591) - Fix url error in API page
 - [#2572](https://github.com/poanetwork/blockscout/pull/2572) - Ease non-critical css
 - [#2570](https://github.com/poanetwork/blockscout/pull/2570) - Network icons preload
 - [#2569](https://github.com/poanetwork/blockscout/pull/2569) - do not fetch emission rewards for transactions csv exporter

From 14f099b5b35b219873751e184d631bcf234c3a73 Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Mon, 19 Aug 2019 17:11:29 +0300
Subject: [PATCH 04/14] remove additional path in local url

---
 apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
index 895fad79c2..382a7b26b9 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
@@ -44,7 +44,7 @@ defmodule BlockScoutWeb.APIDocsView do
       "#{scheme}://#{host}#{path}"
     else
       port = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)[:http][:port]
-      "#{scheme}://#{host}:#{to_string(port)}#{path}"
+      "#{scheme}://#{host}:#{to_string(port)}"
     end
   end
 

From f1c1e066a7803cd56305ad602fbeb5705c27e699 Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Tue, 20 Aug 2019 10:39:40 +0300
Subject: [PATCH 05/14] Add double quotes to copying string

---
 .../block_scout_web/templates/api_docs/_eth_rpc_item.html.eex   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/_eth_rpc_item.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/_eth_rpc_item.html.eex
index 57f96e42e0..f464533c7e 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/_eth_rpc_item.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/_eth_rpc_item.html.eex
@@ -4,7 +4,7 @@
       <h3 class="api-doc-list-item-title"><%= @action %></h3>
       <p class="api-doc-list-item-contents"><%= raw @info.notes %></p>
       <span class="api-doc-list-item-query api-text-monospace api-text-monospace-background btn" 
-        data-clipboard-text="curl -X POST --data '{&quot;id&quot;:0,&quot;jsonrpc&quot;:&quot;2.0&quot;,&quot;method&quot;: &quot;<%= @action %>&quot;, params: []}'"
+        data-clipboard-text="curl -X POST --data '{&quot;id&quot;:0,&quot;jsonrpc&quot;:&quot;2.0&quot;,&quot;method&quot;: &quot;<%= @action %>&quot;,&quot;params&quot;: []}'"
       >
         curl -X POST --data '{"id":0,"jsonrpc":"2.0","method": "<%= @action %>", "params": []}'
       </span>

From 0a647d0acbe3cfcb8b575cf92d420f6ae3268582 Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Wed, 21 Aug 2019 12:06:20 +0300
Subject: [PATCH 06/14] Remove schema from api url

---
 apps/block_scout_web/assets/js/lib/try_api.js               | 6 +++++-
 apps/block_scout_web/assets/js/lib/try_eth_api.js           | 6 +++++-
 .../lib/block_scout_web/views/api_docs_view.ex              | 5 ++---
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/apps/block_scout_web/assets/js/lib/try_api.js b/apps/block_scout_web/assets/js/lib/try_api.js
index e6460f6c6b..02d82a65ef 100644
--- a/apps/block_scout_web/assets/js/lib/try_api.js
+++ b/apps/block_scout_web/assets/js/lib/try_api.js
@@ -55,6 +55,10 @@ function handleSuccess (query, xhr, clickedButton) {
   clickedButton.prop('disabled', false)
 }
 
+function dropDomain (url) {
+  return url.split('/').slice(1).join('/')
+}
+
 // Show 'Try it out' UI for a module/action.
 $('button[data-selector*="btn-try-api"]').click(event => {
   const clickedButton = $(event.target)
@@ -124,7 +128,7 @@ $('button[data-try-api-ui-button-type="execute"]').click(event => {
   }
 
   $.ajax({
-    url: composeRequestUrl(query),
+    url: '/' + dropDomain(composeRequestUrl(query)),
     success: (_data, _status, xhr) => {
       handleSuccess(query, xhr, clickedButton)
     },
diff --git a/apps/block_scout_web/assets/js/lib/try_eth_api.js b/apps/block_scout_web/assets/js/lib/try_eth_api.js
index f6e1adffae..464229885d 100644
--- a/apps/block_scout_web/assets/js/lib/try_eth_api.js
+++ b/apps/block_scout_web/assets/js/lib/try_eth_api.js
@@ -43,6 +43,10 @@ function parseInput (input) {
   }
 }
 
+function dropDomain (url) {
+  return url.split('/').slice(1).join('/')
+}
+
 $('button[data-try-eth-api-ui-button-type="execute"]').click(event => {
   const clickedButton = $(event.target)
   const module = clickedButton.attr('data-module')
@@ -62,7 +66,7 @@ $('button[data-try-eth-api-ui-button-type="execute"]').click(event => {
   const url = $('[data-endpoint-url]').attr('data-endpoint-url')
 
   $.ajax({
-    url: url,
+    url: '/' + dropDomain(url),
     type: 'POST',
     data: JSON.stringify(formData),
     dataType: 'json',
diff --git a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
index 382a7b26b9..6f731d3627 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
@@ -38,13 +38,12 @@ defmodule BlockScoutWeb.APIDocsView do
     url_params = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)[:url]
     host = url_params[:host]
     path = url_params[:path]
-    scheme = url_params[:scheme]
 
     if host != "localhost" do
-      "#{scheme}://#{host}#{path}"
+      "#{host}#{path}"
     else
       port = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)[:http][:port]
-      "#{scheme}://#{host}:#{to_string(port)}"
+      "#{host}:#{to_string(port)}"
     end
   end
 

From 1ddbbb4b4063090a4df352bf0a7459dc1cc758db Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Wed, 21 Aug 2019 12:41:24 +0300
Subject: [PATCH 07/14] fix tests

---
 .../block_scout_web/views/api_docs_view_test.exs     | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs b/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs
index 7583aeaa4f..69be27ef09 100644
--- a/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs
@@ -17,7 +17,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/"]
       )
 
-      assert APIDocsView.blockscout_url() == "https://blockscout.com/"
+      assert APIDocsView.blockscout_url() == "blockscout.com/"
     end
 
     test "returns url with scheme and host with path" do
@@ -25,7 +25,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/chain/dog"]
       )
 
-      assert APIDocsView.blockscout_url() == "https://blockscout.com/chain/dog"
+      assert APIDocsView.blockscout_url() == "blockscout.com/chain/dog"
     end
   end
 
@@ -43,7 +43,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/chain/dog"]
       )
 
-      assert APIDocsView.api_url() == "https://blockscout.com/chain/dog/api"
+      assert APIDocsView.api_url() == "blockscout.com/chain/dog/api"
     end
 
     test "does not add slash to empty path" do
@@ -51,7 +51,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: ""]
       )
 
-      assert APIDocsView.api_url() == "https://blockscout.com/api"
+      assert APIDocsView.api_url() == "blockscout.com/api"
     end
   end
 
@@ -69,7 +69,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/chain/dog"]
       )
 
-      assert APIDocsView.eth_rpc_api_url() == "https://blockscout.com/chain/dog/api/eth_rpc"
+      assert APIDocsView.eth_rpc_api_url() == "blockscout.com/chain/dog/api/eth_rpc"
     end
 
     test "does not add slash to empty path" do
@@ -77,7 +77,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: ""]
       )
 
-      assert APIDocsView.eth_rpc_api_url() == "https://blockscout.com/api/eth_rpc"
+      assert APIDocsView.eth_rpc_api_url() == "blockscout.com/api/eth_rpc"
     end
   end
 end

From 2db7702cef68d187a1662cdf8457aacaed066a6a Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Wed, 28 Aug 2019 14:29:58 +0300
Subject: [PATCH 08/14] Add scheme in api base url

---
 .../templates/api_docs/eth_rpc.html.eex       |  2 +-
 .../templates/api_docs/index.html.eex         |  2 +-
 .../block_scout_web/views/api_docs_view.ex    | 26 ++++----
 .../views/api_docs_view_test.exs              | 64 +++++++++++++------
 4 files changed, 58 insertions(+), 36 deletions(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/eth_rpc.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/eth_rpc.html.eex
index 7b8a9a98de..ad27e68185 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/eth_rpc.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/eth_rpc.html.eex
@@ -2,7 +2,7 @@
   <div class="card">
     <div class="card-body">
       <h1 class="card-title margin-bottom-sm"><%= gettext("ETH RPC API Documentation") %></h2>
-      <p class="api-text-monospace" data-endpoint-url="<%= eth_rpc_api_url() %>">[ <%= gettext "Base URL:" %> <%= eth_rpc_api_url()%> ]</p>
+      <p class="api-text-monospace" data-endpoint-url="<%= eth_rpc_api_url() %>">[ <%= gettext "Base URL:" %> <%= eth_rpc_api_url(with_scheme: true)%> ]</p>
       <p class="card-subtitle margin-bottom-0">
         <%= gettext "This API is provided to support some rpc methods in the exact format specified for ethereum nodes, which can be found " %>
 
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/index.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/index.html.eex
index 59dae38cdb..10ff5a6c27 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/index.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/index.html.eex
@@ -2,7 +2,7 @@
   <div class="card">
     <div class="card-body">
       <h1 class="card-title margin-bottom-sm"><%= gettext("API Documentation") %></h2>
-      <p class="api-text-monospace" data-endpoint-url="<%= api_url() %>">[ <%= gettext "Base URL:" %> <%= api_url()%> ]</p>
+      <p class="api-text-monospace" data-endpoint-url="<%= api_url() %>">[ <%= gettext "Base URL:" %> <%= api_url(with_scheme: true)%> ]</p>
       <p class="card-subtitle margin-bottom-0"><%= gettext "This API is provided for developers transitioning their applications from Etherscan to BlockScout. It supports GET and POST requests." %></p>
     </div>
     <div class="api-anchors-list">
diff --git a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
index 6f731d3627..c30364e96b 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
@@ -34,30 +34,30 @@ defmodule BlockScoutWeb.APIDocsView do
     end)
   end
 
-  def blockscout_url do
+  defp blockscout_url(opts) do
     url_params = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)[:url]
     host = url_params[:host]
     path = url_params[:path]
+    scheme =
+      if Keyword.get(opts, :with_scheme, false) do
+        url_params[:scheme] <> "://"
+      end
 
     if host != "localhost" do
-      "#{host}#{path}"
+      "#{scheme}#{host}#{path}"
     else
       port = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)[:http][:port]
-      "#{host}:#{to_string(port)}"
+      "#{scheme}#{host}:#{to_string(port)}"
     end
   end
 
-  def api_url do
-    handle_slash("api")
+  def api_url(opts \\ []) do
+    base_url = blockscout_url(opts)
+    Path.join(base_url, "api")
   end
 
-  def eth_rpc_api_url do
-    handle_slash("api/eth_rpc")
-  end
-
-  defp handle_slash(path) do
-    base_url = blockscout_url()
-
-    Path.join(base_url, path)
+  def eth_rpc_api_url(opts \\ []) do
+    base_url = blockscout_url(opts)
+    Path.join(base_url, "api/eth_rpc")
   end
 end
diff --git a/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs b/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs
index 69be27ef09..bd2bb6cd05 100644
--- a/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs
@@ -3,7 +3,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
 
   alias BlockScoutWeb.APIDocsView
 
-  describe "blockscout_url/0" do
+  describe "api_url/1" do
     setup do
       original = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)
 
@@ -12,46 +12,44 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
       :ok
     end
 
-    test "returns url with scheme and host without port" do
+    test "adds slash before path" do
       Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
-        url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/"]
+        url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/chain/dog"]
       )
 
-      assert APIDocsView.blockscout_url() == "blockscout.com/"
+      assert APIDocsView.api_url() == "blockscout.com/chain/dog/api"
     end
 
-    test "returns url with scheme and host with path" do
+    test "does not add slash to empty path" do
       Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
-        url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/chain/dog"]
+        url: [scheme: "https", host: "blockscout.com", port: 9999, path: ""]
       )
 
-      assert APIDocsView.blockscout_url() == "blockscout.com/chain/dog"
+      assert APIDocsView.api_url() == "blockscout.com/api"
     end
-  end
 
-  describe "api_url/1" do
-    setup do
-      original = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)
-
-      on_exit(fn -> Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint, original) end)
+    test "path with schems" do
+      Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
+        url: [scheme: "https", host: "blockscout.com", port: 9999]
+      )
 
-      :ok
-    end
+      assert APIDocsView.api_url(with_scheme: true) == "https://blockscout.com/api"
 
-    test "adds slash before path" do
       Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
-        url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/chain/dog"]
+        url: [scheme: "http", host: "blockscout.com", port: 9999]
       )
 
-      assert APIDocsView.api_url() == "blockscout.com/chain/dog/api"
+      assert APIDocsView.api_url(with_scheme: true) == "http://blockscout.com/api"
     end
 
-    test "does not add slash to empty path" do
+    test "localhost return with port" do
       Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
-        url: [scheme: "https", host: "blockscout.com", port: 9999, path: ""]
+        url: [scheme: "http", host: "localhost"],
+        http: [port: 9999]
       )
 
-      assert APIDocsView.api_url() == "blockscout.com/api"
+      assert APIDocsView.api_url() == "localhost:9999/api"
+      assert APIDocsView.api_url(with_scheme: true) == "http://localhost:9999/api"
     end
   end
 
@@ -79,5 +77,29 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
 
       assert APIDocsView.eth_rpc_api_url() == "blockscout.com/api/eth_rpc"
     end
+
+    test "path with schems" do
+      Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
+        url: [scheme: "https", host: "blockscout.com", port: 9999]
+      )
+
+      assert APIDocsView.eth_rpc_api_url(with_scheme: true) == "https://blockscout.com/api/eth_rpc"
+
+      Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
+        url: [scheme: "http", host: "blockscout.com", port: 9999]
+      )
+
+      assert APIDocsView.eth_rpc_api_url(with_scheme: true) == "http://blockscout.com/api/eth_rpc"
+    end
+
+    test "localhost return with port" do
+      Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
+        url: [scheme: "http", host: "localhost"],
+        http: [port: 9999]
+      )
+
+      assert APIDocsView.eth_rpc_api_url() == "localhost:9999/api/eth_rpc"
+      assert APIDocsView.eth_rpc_api_url(with_scheme: true) == "http://localhost:9999/api/eth_rpc"
+    end
   end
 end

From aabb0069405954d98f2ccb73d29428d5fec9233d Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Wed, 28 Aug 2019 14:36:36 +0300
Subject: [PATCH 09/14] Add host in an example of curl request

---
 apps/block_scout_web/assets/js/lib/try_eth_api.js              | 3 ++-
 .../block_scout_web/lib/block_scout_web/views/api_docs_view.ex | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/apps/block_scout_web/assets/js/lib/try_eth_api.js b/apps/block_scout_web/assets/js/lib/try_eth_api.js
index 464229885d..8f81f852ec 100644
--- a/apps/block_scout_web/assets/js/lib/try_eth_api.js
+++ b/apps/block_scout_web/assets/js/lib/try_eth_api.js
@@ -1,7 +1,8 @@
 import $ from 'jquery'
 
 function composeCurlCommand (data) {
-  return `curl -H "content-type: application/json" -X POST --data '${JSON.stringify(data)}'`
+  const url = $('[data-endpoint-url]').attr('data-endpoint-url')
+  return `curl ${url} -H "content-type: application/json" -X POST --data '${JSON.stringify(data)}'`
 }
 
 function handleResponse (data, xhr, clickedButton) {
diff --git a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
index c30364e96b..a9b816abb9 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
@@ -38,6 +38,7 @@ defmodule BlockScoutWeb.APIDocsView do
     url_params = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)[:url]
     host = url_params[:host]
     path = url_params[:path]
+
     scheme =
       if Keyword.get(opts, :with_scheme, false) do
         url_params[:scheme] <> "://"

From d167795623e29cd840d08b576cf0afbb2b721a2c Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Wed, 28 Aug 2019 15:19:48 +0300
Subject: [PATCH 10/14] fix test

---
 .../lib/block_scout_web/views/api_docs_view.ex                | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
index a9b816abb9..eabd883df9 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
@@ -40,8 +40,8 @@ defmodule BlockScoutWeb.APIDocsView do
     path = url_params[:path]
 
     scheme =
-      if Keyword.get(opts, :with_scheme, false) do
-        url_params[:scheme] <> "://"
+      if Keyword.get(opts, :with_scheme, false) && url_params[:scheme] do
+        "#{url_params[:scheme]}://"
       end
 
     if host != "localhost" do

From d40aaef0c6c889986cf81c77c76ed66601b8de01 Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Thu, 29 Aug 2019 10:28:39 +0300
Subject: [PATCH 11/14] Add scheme in api urls

---
 .../templates/api_docs/eth_rpc.html.eex       |  2 +-
 .../templates/api_docs/index.html.eex         |  2 +-
 .../block_scout_web/views/api_docs_view.ex    | 20 ++++-----
 .../views/api_docs_view_test.exs              | 42 +++----------------
 4 files changed, 16 insertions(+), 50 deletions(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/eth_rpc.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/eth_rpc.html.eex
index ad27e68185..7b8a9a98de 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/eth_rpc.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/eth_rpc.html.eex
@@ -2,7 +2,7 @@
   <div class="card">
     <div class="card-body">
       <h1 class="card-title margin-bottom-sm"><%= gettext("ETH RPC API Documentation") %></h2>
-      <p class="api-text-monospace" data-endpoint-url="<%= eth_rpc_api_url() %>">[ <%= gettext "Base URL:" %> <%= eth_rpc_api_url(with_scheme: true)%> ]</p>
+      <p class="api-text-monospace" data-endpoint-url="<%= eth_rpc_api_url() %>">[ <%= gettext "Base URL:" %> <%= eth_rpc_api_url()%> ]</p>
       <p class="card-subtitle margin-bottom-0">
         <%= gettext "This API is provided to support some rpc methods in the exact format specified for ethereum nodes, which can be found " %>
 
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/index.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/index.html.eex
index 10ff5a6c27..59dae38cdb 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/api_docs/index.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/api_docs/index.html.eex
@@ -2,7 +2,7 @@
   <div class="card">
     <div class="card-body">
       <h1 class="card-title margin-bottom-sm"><%= gettext("API Documentation") %></h2>
-      <p class="api-text-monospace" data-endpoint-url="<%= api_url() %>">[ <%= gettext "Base URL:" %> <%= api_url(with_scheme: true)%> ]</p>
+      <p class="api-text-monospace" data-endpoint-url="<%= api_url() %>">[ <%= gettext "Base URL:" %> <%= api_url()%> ]</p>
       <p class="card-subtitle margin-bottom-0"><%= gettext "This API is provided for developers transitioning their applications from Etherscan to BlockScout. It supports GET and POST requests." %></p>
     </div>
     <div class="api-anchors-list">
diff --git a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
index eabd883df9..e067c997d2 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
@@ -34,31 +34,27 @@ defmodule BlockScoutWeb.APIDocsView do
     end)
   end
 
-  defp blockscout_url(opts) do
+  defp blockscout_url do
     url_params = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)[:url]
     host = url_params[:host]
     path = url_params[:path]
-
-    scheme =
-      if Keyword.get(opts, :with_scheme, false) && url_params[:scheme] do
-        "#{url_params[:scheme]}://"
-      end
+    scheme = Keyword.get(url_params, :scheme, "http")
 
     if host != "localhost" do
-      "#{scheme}#{host}#{path}"
+      "#{scheme}://#{host}#{path}"
     else
       port = Application.get_env(:block_scout_web, BlockScoutWeb.Endpoint)[:http][:port]
-      "#{scheme}#{host}:#{to_string(port)}"
+      "#{scheme}://#{host}:#{to_string(port)}"
     end
   end
 
-  def api_url(opts \\ []) do
-    base_url = blockscout_url(opts)
+  def api_url do
+    base_url = blockscout_url()
     Path.join(base_url, "api")
   end
 
-  def eth_rpc_api_url(opts \\ []) do
-    base_url = blockscout_url(opts)
+  def eth_rpc_api_url do
+    base_url = blockscout_url()
     Path.join(base_url, "api/eth_rpc")
   end
 end
diff --git a/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs b/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs
index bd2bb6cd05..31922b4486 100644
--- a/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/views/api_docs_view_test.exs
@@ -17,7 +17,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/chain/dog"]
       )
 
-      assert APIDocsView.api_url() == "blockscout.com/chain/dog/api"
+      assert APIDocsView.api_url() == "https://blockscout.com/chain/dog/api"
     end
 
     test "does not add slash to empty path" do
@@ -25,21 +25,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: ""]
       )
 
-      assert APIDocsView.api_url() == "blockscout.com/api"
-    end
-
-    test "path with schems" do
-      Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
-        url: [scheme: "https", host: "blockscout.com", port: 9999]
-      )
-
-      assert APIDocsView.api_url(with_scheme: true) == "https://blockscout.com/api"
-
-      Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
-        url: [scheme: "http", host: "blockscout.com", port: 9999]
-      )
-
-      assert APIDocsView.api_url(with_scheme: true) == "http://blockscout.com/api"
+      assert APIDocsView.api_url() == "https://blockscout.com/api"
     end
 
     test "localhost return with port" do
@@ -48,8 +34,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         http: [port: 9999]
       )
 
-      assert APIDocsView.api_url() == "localhost:9999/api"
-      assert APIDocsView.api_url(with_scheme: true) == "http://localhost:9999/api"
+      assert APIDocsView.api_url() == "http://localhost:9999/api"
     end
   end
 
@@ -67,7 +52,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: "/chain/dog"]
       )
 
-      assert APIDocsView.eth_rpc_api_url() == "blockscout.com/chain/dog/api/eth_rpc"
+      assert APIDocsView.eth_rpc_api_url() == "https://blockscout.com/chain/dog/api/eth_rpc"
     end
 
     test "does not add slash to empty path" do
@@ -75,21 +60,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         url: [scheme: "https", host: "blockscout.com", port: 9999, path: ""]
       )
 
-      assert APIDocsView.eth_rpc_api_url() == "blockscout.com/api/eth_rpc"
-    end
-
-    test "path with schems" do
-      Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
-        url: [scheme: "https", host: "blockscout.com", port: 9999]
-      )
-
-      assert APIDocsView.eth_rpc_api_url(with_scheme: true) == "https://blockscout.com/api/eth_rpc"
-
-      Application.put_env(:block_scout_web, BlockScoutWeb.Endpoint,
-        url: [scheme: "http", host: "blockscout.com", port: 9999]
-      )
-
-      assert APIDocsView.eth_rpc_api_url(with_scheme: true) == "http://blockscout.com/api/eth_rpc"
+      assert APIDocsView.eth_rpc_api_url() == "https://blockscout.com/api/eth_rpc"
     end
 
     test "localhost return with port" do
@@ -98,8 +69,7 @@ defmodule BlockScoutWeb.ApiDocsViewTest do
         http: [port: 9999]
       )
 
-      assert APIDocsView.eth_rpc_api_url() == "localhost:9999/api/eth_rpc"
-      assert APIDocsView.eth_rpc_api_url(with_scheme: true) == "http://localhost:9999/api/eth_rpc"
+      assert APIDocsView.eth_rpc_api_url() == "http://localhost:9999/api/eth_rpc"
     end
   end
 end

From 37da2eaa6e5500b493e892e2c4da8358ba52d6a6 Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Thu, 29 Aug 2019 10:30:05 +0300
Subject: [PATCH 12/14] Move api's url to the end of example

---
 apps/block_scout_web/assets/js/lib/try_eth_api.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/block_scout_web/assets/js/lib/try_eth_api.js b/apps/block_scout_web/assets/js/lib/try_eth_api.js
index 8f81f852ec..c59d71dbcc 100644
--- a/apps/block_scout_web/assets/js/lib/try_eth_api.js
+++ b/apps/block_scout_web/assets/js/lib/try_eth_api.js
@@ -2,7 +2,7 @@ import $ from 'jquery'
 
 function composeCurlCommand (data) {
   const url = $('[data-endpoint-url]').attr('data-endpoint-url')
-  return `curl ${url} -H "content-type: application/json" -X POST --data '${JSON.stringify(data)}'`
+  return `curl -H "content-type: application/json" -X POST --data '${JSON.stringify(data)}' ${url}`
 }
 
 function handleResponse (data, xhr, clickedButton) {

From a86b95cbe6c72eb33b496343eca196c66abd2c0a Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Thu, 29 Aug 2019 10:35:37 +0300
Subject: [PATCH 13/14] Use pipeline

---
 .../lib/block_scout_web/views/api_docs_view.ex            | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
index e067c997d2..363a4a0179 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api_docs_view.ex
@@ -49,12 +49,12 @@ defmodule BlockScoutWeb.APIDocsView do
   end
 
   def api_url do
-    base_url = blockscout_url()
-    Path.join(base_url, "api")
+    blockscout_url()
+    |> Path.join("api")
   end
 
   def eth_rpc_api_url do
-    base_url = blockscout_url()
-    Path.join(base_url, "api/eth_rpc")
+    blockscout_url()
+    |> Path.join("api/eth_rpc")
   end
 end

From b479aae84a152b02a642ac35a1ab19aa7f817cef Mon Sep 17 00:00:00 2001
From: saneery <anatolyniky@gmail.com>
Date: Thu, 29 Aug 2019 17:17:54 +0300
Subject: [PATCH 14/14] Set not full path to api on ajax queries

---
 apps/block_scout_web/assets/js/lib/try_api.js     | 4 ++--
 apps/block_scout_web/assets/js/lib/try_eth_api.js | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/apps/block_scout_web/assets/js/lib/try_api.js b/apps/block_scout_web/assets/js/lib/try_api.js
index 02d82a65ef..6c33779f30 100644
--- a/apps/block_scout_web/assets/js/lib/try_api.js
+++ b/apps/block_scout_web/assets/js/lib/try_api.js
@@ -56,7 +56,7 @@ function handleSuccess (query, xhr, clickedButton) {
 }
 
 function dropDomain (url) {
-  return url.split('/').slice(1).join('/')
+  return new URL(url).pathname
 }
 
 // Show 'Try it out' UI for a module/action.
@@ -128,7 +128,7 @@ $('button[data-try-api-ui-button-type="execute"]').click(event => {
   }
 
   $.ajax({
-    url: '/' + dropDomain(composeRequestUrl(query)),
+    url: dropDomain(composeRequestUrl(query)),
     success: (_data, _status, xhr) => {
       handleSuccess(query, xhr, clickedButton)
     },
diff --git a/apps/block_scout_web/assets/js/lib/try_eth_api.js b/apps/block_scout_web/assets/js/lib/try_eth_api.js
index c59d71dbcc..30299431be 100644
--- a/apps/block_scout_web/assets/js/lib/try_eth_api.js
+++ b/apps/block_scout_web/assets/js/lib/try_eth_api.js
@@ -45,7 +45,7 @@ function parseInput (input) {
 }
 
 function dropDomain (url) {
-  return url.split('/').slice(1).join('/')
+  return new URL(url).pathname
 }
 
 $('button[data-try-eth-api-ui-button-type="execute"]').click(event => {
@@ -67,7 +67,7 @@ $('button[data-try-eth-api-ui-button-type="execute"]').click(event => {
   const url = $('[data-endpoint-url]').attr('data-endpoint-url')
 
   $.ajax({
-    url: '/' + dropDomain(url),
+    url: dropDomain(url),
     type: 'POST',
     data: JSON.stringify(formData),
     dataType: 'json',