fetc h!!!

1 files changed, 31 insertions, 0 deletions

diff --git a/src/node-fallbacks/@vercel_fetch.js b/src/node-fallbacks/@vercel_fetch.js
new file mode 100644
index 000000000..5ab626670
--- /dev/null
+++ b/src/node-fallbacks/@vercel_fetch.js
@@ -0,0 +1,31 @@
+// This is just a no-op. Intent is to prevent importing a bunch of stuff that isn't relevant.
+module.exports = (wrapper = Bun.fetch) => {
+  return async function vercelFetch(url, opts = {}) {
+    // Convert Object bodies to JSON if they are JS objects
+    if (
+      opts.body &&
+      typeof opts.body === "object" &&
+      (!("buffer" in opts.body) ||
+        typeof opts.body.buffer !== "object" ||
+        !(opts.body.buffer instanceof ArrayBuffer))
+    ) {
+      opts.body = JSON.stringify(opts.body);
+      // Content length will automatically be set
+      if (!opts.headers) opts.headers = new Headers();
+
+      opts.headers.set("Content-Type", "application/json");
+    }
+
+    try {
+      return await wrapper(url, opts);
+    } catch (err) {
+      if (typeof err === "string") {
+        err = new Error(err);
+      }
+
+      err.url = url;
+      err.opts = opts;
+      throw err;
+    }
+  };
+};