feat(gatsby): allow configuration of default socket type (#27734)

gatsbyjs · Oct 30, 2020 · f43a6bd · f43a6bd
1 parent 5869cc5
commit f43a6bd
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/packages/gatsby/cache-dir/socketIo.js b/packages/gatsby/cache-dir/socketIo.js
@@ -18,7 +18,7 @@ export default function socketIo() {
       try {
         // force websocket as transport
         socket = io({
-          transports: [`websocket`],
+          transports: [process.env.GATSBY_SOCKET_IO_DEFAULT_TRANSPORT],
         })
 
         // when websocket fails, we'll try polling

diff --git a/packages/gatsby/src/utils/webpack.config.js b/packages/gatsby/src/utils/webpack.config.js
@@ -86,6 +86,12 @@ module.exports = async (
     envObject.BUILD_STAGE = JSON.stringify(stage)
     envObject.CYPRESS_SUPPORT = JSON.stringify(process.env.CYPRESS_SUPPORT)
 
+    if (stage === `develop`) {
+      envObject.GATSBY_SOCKET_IO_DEFAULT_TRANSPORT = JSON.stringify(
+        process.env.GATSBY_SOCKET_IO_DEFAULT_TRANSPORT || `websocket`
+      )
+    }
+
     const mergedEnvVars = Object.assign(envObject, gatsbyVarObject)
 
     return Object.keys(mergedEnvVars).reduce(