init multi services

multi-service/curl_adapter/.gitignore

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+DS_Store
+.repl_history
+/target
+**/**.bak
+**/**.bk
+Cargo.lock

multi-service/curl_adapter/Cargo.toml

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+[package]
+name = "curl_adapter"
+version = "0.1.0"
+authors = ["Fluence Labs"]
+edition = "2018"
+publish = false
+
+[[bin]]
+path = "src/main.rs"
+name = "curl_adapter"
+
+[dependencies]
+fluence = { version = "=0.2.18", features = ["logger"]}
+log = "0.4.8"
+serde_json = "1.0.64"

multi-service/curl_adapter/src/main.rs

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+/*
+ * 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 fluence::fce;
+use fluence::WasmLoggerBuilder;
+
+/// Log level can be changed by `RUST_LOG` env as well.
+pub fn main() {
+    WasmLoggerBuilder::new().build().unwrap();
+}
+
+#[fce]
+pub fn curl_request(url: String) -> String {
+    // log::info!("get called with url {}", url);
+
+    unsafe { curl(url) }
+}
+
+/// Permissions in `Config.toml` should exist to use host functions.
+#[fce]
+#[link(wasm_import_module = "host")]
+extern "C" {
+    fn curl(cmd: String) -> String;
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn curl_test() {
+        let args = r#"-X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x1b4", true],"id":1}'"#;
+        let url = "https://kovan.infura.io/v3//0cc023286cae4ab886598ecd14e256fd";
+
+        let cmd = format!("{} {}", args, url);
+        println!("cmd: {}", cmd);
+
+        let res = curl_request(cmd);
+        println!("res: {}", res);
+        assert!(true);
+    }
+}