diff --git a/src/error/index.ts b/src/error/index.ts
new file mode 100644
index 0000000..3608181
--- /dev/null
+++ b/src/error/index.ts
@@ -0,0 +1 @@
+export { PipelineError } from "./PipelineError";
diff --git a/src/index.ts b/src/index.ts
index dc77c65..8c3709d 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1 +1,4 @@
-export { buildPipeline } from "./buildPipeline";
+export * from "./buildPipeline";
+export * from "./error";
+export * from "./middleware";
+export * from "./types";
diff --git a/src/middleware/index.ts b/src/middleware/index.ts
new file mode 100644
index 0000000..e67c3db
--- /dev/null
+++ b/src/middleware/index.ts
@@ -0,0 +1 @@
+export { logStageMiddlewareFactory } from "./logStageMiddlewareFactory";