rust-workshop => backend-rust

backend-rust/step0-framework/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "fluid"
+version = "0.1.0"
+authors = ["Fluence Labs"]
+publish = false
+description = "Decentralized feed built on Fluence"
+edition = "2018"
+
+[lib]
+name = "fluid"
+path = "src/lib.rs"
+crate-type = ["cdylib"]
+
+[profile.release]
+debug = false
+lto = true
+opt-level = "z"
+panic = "abort"
+
+[dependencies]
+log = "0.4"
+fluence = { version = "0.1.6", features = ["wasm_logger"] }

backend-rust/step0-framework/run.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+set -e
+
+mkdir -p wasm
+
+# Build fluid WASM module
+echo "Building..."
+cargo +nightly build --target wasm32-unknown-unknown --release >/dev/null
+cp target/wasm32-unknown-unknown/release/*.wasm ./wasm/
+echo
+
+# Run it all on 30000 port with default Fluence API
+echo "Running..."
+docker rm -f frun &>/dev/null || true
+echo 'docker run -d --name frun --rm -v "$(pwd)/wasm:/code" -p 30000:30000 fluencelabs/frun:latest'
+docker run -d --name frun --rm -v "$(pwd)/wasm:/code" -p 30000:30000 fluencelabs/frun:latest >/dev/null
+echo
+
+# Wait for app to be initialized
+sleep 1 && (docker logs -f frun 2>&1 &) | grep -q initialized && sleep 1
+
+# Send our username to the application
+echo -e "Sending request..."
+echo "curl -s 'http://localhost:30000/apps/1/tx' --data $'sessionId/0\n'$USER --compressed"
+echo
+
+RESPONSE=$(curl -s 'http://localhost:30000/apps/1/tx' --data $'sessionId/0\n'"$USER" --compressed | jq -r .result.data | base64 -D)
+
+echo -e "$RESPONSE\n"
+
+# Remove frun container
+echo -e "Stopping..."
+docker rm -f frun >/dev/null

backend-rust/step0-framework/src/lib.rs

@@ -0,0 +1,16 @@
+use fluence::sdk::*;
+use log;
+
+// Initialize logger
+fn init() {
+    logger::WasmLogger::init_with_level(log::Level::Info).unwrap();
+}
+
+#[invocation_handler(init_fn = init)]
+fn run(arg: String) -> String {
+    // Log to console
+    log::info!("Hello, {}", arg);
+
+    // Return string back to JS
+    format!("Hello, {}", arg)
+}