move ipfs example

aqua-examples/aqua-ipfs-integration/service/src/main.rs

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2021 Fluence Labs Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use marine_rs_sdk::{marine, module_manifest, get_call_parameters};
+use std::path::{PathBuf, Path};
+use rand::Rng;
+use rand::distributions::Alphanumeric;
+
+module_manifest!();
+
+pub fn main() { }
+
+#[marine]
+pub struct SizeResult {
+    pub size: u32,
+    pub success: bool,
+    pub error: String,
+}
+
+#[marine]
+pub fn file_size(file_path: String) -> SizeResult {
+    match std::fs::read(file_path) {
+        Ok(bytes) => SizeResult { size: bytes.len() as _, success: true, error: String::new() },
+        Err(err) => SizeResult { size: 0, success: false, error: err.to_string() },
+    }
+}
+
+#[marine]
+pub struct WriteResult {
+    pub path: String,
+    pub success: bool,
+    pub error: String,
+}
+
+#[marine]
+pub fn write_file_size(size: u32) -> WriteResult {
+    let name: String = rand::thread_rng()
+        .sample_iter(Alphanumeric)
+        .take(16)
+        .map(char::from)
+        .collect();
+
+    let file = vault_dir().join(&name);
+    let file_str = file.to_string_lossy().to_string();
+    match std::fs::write(&file, size.to_string()) {
+        Ok(_) => WriteResult { path: file_str, success: true, error: String::new() },
+        Err(err) => WriteResult { path: String::new(), success: false, error: err.to_string() }
+    }
+}
+
+fn vault_dir() -> PathBuf {
+    let particle_id = get_call_parameters().particle_id;
+    let vault = Path::new("/tmp").join("vault").join(particle_id);
+
+    vault
+}