support big data

README.md

@@ -140,6 +140,26 @@ const cost = await flatDirectory.estimateCost(key, data);
 console.log(`Gas Cost: ${cost.gasCost}, Storage Cost: ${cost.storageCost}`);
 ```
 
+#### estimateFileCost
+
+Estimate gas costs before uploading.
+
+Browser
+```javascript
+// <input id='fileToUpload' />
+const file = document.getElementById('fileToUpload').files[0];
+const cost = await flatDirectory.estimateFileCost("example1.txt", file);
+console.log(`Gas Cost: ${cost.gasCost}, Storage Cost: ${cost.storageCost}`);
+```
+
+Node
+```javascript
+const {NodeFile} = require("ethstorage-sdk/file");
+const file = new NodeFile("/usr/download/test.jpg");
+const cost = await flatDirectory.estimateFileCost("example1.txt", file);
+console.log(`Gas Cost: ${cost.gasCost}, Storage Cost: ${cost.storageCost}`);
+```
+
 #### upload
 
 Upload data to FlatDirectory.
@@ -156,42 +176,72 @@ If you want to listener the upload results, you can pass in the callback functio
 
 ```js
 await flatDirectory.upload(key, data, {
-    onProgress: function (progress, count) {
-        console.log(`Uploaded ${progress} of ${totalCount} chunks`);
+    onProgress: function (progress, count, isChange) {
+        console.log(`Uploaded ${progress} of ${count} chunks`);
     },
     onFail: function (err) {
         console.log(err);
     },
-    onSuccess: function (totalUploadChunks, totalUploadSize, totalStorageCost) {
+    onFinish: function (totalUploadChunks, totalUploadSize, totalStorageCost) {
         console.log(`Total upload chunk count is ${totalUploadChunks}, size is ${totalUploadSize}, storage cost is ${totalStorageCost}`);
     }
 });
 ```
 
-#### download
+#### uploadFile
 
-Download data from the EthStorage network.
+Upload file object to FlatDirectory.
 
-```js
-const key = "test.txt";
-const data = await flatDirectory.download(key);
+Browser
+```javascript
+// <input id='fileToUpload' />
+const file = document.getElementById('fileToUpload').files[0];
+await flatDirectory.uploadFile(key, file, {
+    onProgress: function (progress, count, isChange) {
+        console.log(`Uploaded ${progress} of ${count} chunks`);
+    },
+    onFail: function (err) {
+        console.log(err);
+    },
+    onFinish: function (totalUploadChunks, totalUploadSize, totalStorageCost) {
+        console.log(`Total upload chunk count is ${totalUploadChunks}, size is ${totalUploadSize}, storage cost is ${totalStorageCost}`);
+    }
+});
 ```
 
-#### downloadSync
+Node
+```javascript
+const {NodeFile} = require("ethstorage-sdk/file");
+const file = new NodeFile("/usr/download/test.jpg");
+await flatDirectory.uploadFile(key, file, {
+    onProgress: function (progress, count, isChange) {
+        console.log(`Uploaded ${progress} of ${count} chunks`);
+    },
+    onFail: function (err) {
+        console.log(err);
+    },
+    onFinish: function (totalUploadChunks, totalUploadSize, totalStorageCost) {
+        console.log(`Total upload chunk count is ${totalUploadChunks}, size is ${totalUploadSize}, storage cost is ${totalStorageCost}`);
+    }
+});
+```
+
+
+#### download
 
 If you want to listener the download progress, you can pass in the callback function.
 
 ```js
 const key = "test.txt";
-flatDirectory.download(key, {
-    onProgress: function (progress, totalCount, chunk) {
-        console.log(`Download ${progress} of ${totalCount} chunks, this chunk is ${chunk.toString()}`);
+await flatDirectory.download(key, {
+    onProgress: function (progress, count, chunk) {
+        console.log(`Download ${progress} of ${count} chunks, this chunk is ${chunk.toString()}`);
     },
     onFail: function (error) {
         console.error("Error download data:", error);
     },
-    onSuccess: function (data) {
-        console.log("Download success.", data);
+    onFinish: function () {
+        console.log("Download success.");
     }
 });
 ```

package.json

@@ -4,6 +4,15 @@
   "description": "eip-4844 blobs upload sdk",
   "main": "dist/index.cjs.js",
   "module": "dist/index.esm.js",
+  "exports": {
+    ".": {
+      "require": "./dist/index.cjs.js",
+      "import": "./dist/index.esm.js"
+    },
+    "./file": {
+      "require": "./dist/file.cjs.js"
+    }
+  },
   "scripts": {
     "build": "rollup -c"
   },

rollup.config.mjs

@@ -3,23 +3,31 @@ import resolve from '@rollup/plugin-node-resolve';
 
 export default [
     {
-        input: "./src/index.js",
-        output: {
-            file: 'dist/index.cjs.js', format: 'cjs', sourcemap: true
-        },
+        input: 'src/index.js',
+        output: [
+            {
+                file: 'dist/index.cjs.js',
+                format: 'cjs',
+                sourcemap: true
+            },
+            {
+                file: 'dist/index.esm.js',
+                format: 'esm',
+                sourcemap: true
+            }
+        ],
         plugins: [commonjs(), resolve()],
         external: ["ethers", "kzg-wasm"]
     },
     {
-        input: "./src/index.js",
+        input: 'src/node/file.js',
         output: {
-            file: "./dist/index.esm.js", format: "esm", sourcemap: true
+            file: 'dist/file.cjs.js',
+            format: 'cjs',
+            sourcemap: true
         },
-        plugins: [
-            commonjs(),
-            resolve()
-        ],
-        external: ["ethers", "kzg-wasm"]
-    }
+        plugins: [commonjs(), resolve()],
+        external: ["ethers"]
+    },
 ];