Enable different output serialization formats in WebSocket RPC
This commit is contained in:
Tobie Morgan Hitchcock
parent
d12384f3fb
commit
a0d86248e2
2 changed files with 101 additions and 48 deletions
107
src/net/rpc.rs
107
src/net/rpc.rs
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@ -11,6 +11,7 @@ use crate::rpc::args::Take;
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use crate::rpc::paths::{ID, METHOD, PARAMS};
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use crate::rpc::res;
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use crate::rpc::res::Failure;
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use crate::rpc::res::Output;
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use futures::{SinkExt, StreamExt};
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use serde::Serialize;
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use std::collections::BTreeMap;
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@ -41,6 +42,7 @@ async fn socket(ws: WebSocket, session: Session) {
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pub struct Rpc {
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session: Session,
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format: Output,
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vars: BTreeMap<String, Value>,
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}
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@ -49,11 +51,14 @@ impl Rpc {
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pub fn new(mut session: Session) -> Arc<RwLock<Rpc>> {
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// Create a new RPC variables store
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let vars = BTreeMap::new();
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// Set the default output format
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let format = Output::Json;
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// Enable real-time live queries
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session.rt = true;
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// Create and store the Rpc connection
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Arc::new(RwLock::new(Rpc {
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session,
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format,
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vars,
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}))
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}
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@ -132,17 +137,26 @@ impl Rpc {
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// Call RPC methods from the WebSocket
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async fn call(rpc: Arc<RwLock<Rpc>>, msg: Message, chn: Sender<Message>) {
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// Get the current output format
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let out = { rpc.read().await.format.clone() };
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// Clone the RPC
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let rpc = rpc.clone();
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// Convert the message
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let str = match msg.to_str() {
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Ok(v) => v,
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_ => return res::failure(None, Failure::INTERNAL_ERROR).send(chn).await,
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};
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// Parse the request
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let req = match surrealdb::sql::json(str) {
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Ok(v) if v.is_some() => v,
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_ => return res::failure(None, Failure::PARSE_ERROR).send(chn).await,
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let req = match msg {
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// This is a text message
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m if m.is_text() => {
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// This won't panic due to the check above
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let val = m.to_str().unwrap();
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// Parse the SurrealQL object
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match surrealdb::sql::json(val) {
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// The SurrealQL message parsed ok
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Ok(v) => v,
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// The SurrealQL message failed to parse
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_ => return res::failure(None, Failure::PARSE_ERROR).send(out, chn).await,
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}
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}
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// Unsupported message type
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_ => return res::failure(None, Failure::INTERNAL_ERROR).send(out, chn).await,
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};
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// Fetch the 'id' argument
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let id = match req.pick(&*ID) {
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@ -157,7 +171,7 @@ impl Rpc {
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// Fetch the 'method' argument
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let method = match req.pick(&*METHOD) {
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Value::Strand(v) => v.to_raw(),
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_ => return res::failure(id, Failure::INVALID_REQUEST).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_REQUEST).send(out, chn).await,
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};
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// Fetch the 'params' argument
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let params = match req.pick(&*PARAMS) {
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@ -169,108 +183,115 @@ impl Rpc {
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"ping" => Ok(Value::None),
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"info" => match params.len() {
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0 => rpc.read().await.info().await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"use" => match params.take_two() {
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(Value::Strand(ns), Value::Strand(db)) => rpc.write().await.yuse(ns, db).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"signup" => match params.take_one() {
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Value::Object(v) => rpc.write().await.signup(v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"signin" => match params.take_one() {
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Value::Object(v) => rpc.write().await.signin(v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"invalidate" => match params.len() {
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0 => rpc.write().await.invalidate().await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"authenticate" => match params.take_one() {
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Value::None => rpc.write().await.invalidate().await,
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Value::Strand(v) => rpc.write().await.authenticate(v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"kill" => match params.take_one() {
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v if v.is_uuid() => rpc.read().await.kill(v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"live" => match params.take_one() {
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v if v.is_strand() => rpc.read().await.live(v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"let" => match params.take_two() {
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(Value::Strand(s), v) => rpc.write().await.set(s, v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"set" => match params.take_two() {
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(Value::Strand(s), v) => rpc.write().await.set(s, v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"query" => match params.take_two() {
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(Value::Strand(s), o) if o.is_none() => {
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let res = rpc.read().await.query(s).await;
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return match res {
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Ok(v) => res::success(id, v).send(chn).await,
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Err(e) => res::failure(id, Failure::custom(e.to_string())).send(chn).await,
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return match rpc.read().await.query(s).await {
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Ok(v) => res::success(id, v).send(out, chn).await,
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Err(e) => {
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res::failure(id, Failure::custom(e.to_string())).send(out, chn).await
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}
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};
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}
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(Value::Strand(s), Value::Object(o)) => {
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let res = rpc.read().await.query_with(s, o).await;
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return match res {
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Ok(v) => res::success(id, v).send(chn).await,
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Err(e) => res::failure(id, Failure::custom(e.to_string())).send(chn).await,
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return match rpc.read().await.query_with(s, o).await {
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Ok(v) => res::success(id, v).send(out, chn).await,
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Err(e) => {
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res::failure(id, Failure::custom(e.to_string())).send(out, chn).await
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}
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};
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}
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"select" => match params.take_one() {
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v if v.is_thing() => rpc.read().await.select(v).await,
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v if v.is_strand() => rpc.read().await.select(v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"create" => match params.take_two() {
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(v, o) if v.is_thing() && o.is_none() => rpc.read().await.create(v, None).await,
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(v, o) if v.is_strand() && o.is_none() => rpc.read().await.create(v, None).await,
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(v, o) if v.is_thing() && o.is_object() => rpc.read().await.create(v, o).await,
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(v, o) if v.is_strand() && o.is_object() => rpc.read().await.create(v, o).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"update" => match params.take_two() {
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(v, o) if v.is_thing() && o.is_none() => rpc.read().await.update(v, None).await,
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(v, o) if v.is_strand() && o.is_none() => rpc.read().await.update(v, None).await,
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(v, o) if v.is_thing() && o.is_object() => rpc.read().await.update(v, o).await,
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(v, o) if v.is_strand() && o.is_object() => rpc.read().await.update(v, o).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"change" => match params.take_two() {
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(v, o) if v.is_thing() && o.is_none() => rpc.read().await.change(v, None).await,
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(v, o) if v.is_strand() && o.is_none() => rpc.read().await.change(v, None).await,
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(v, o) if v.is_thing() && o.is_object() => rpc.read().await.change(v, o).await,
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(v, o) if v.is_strand() && o.is_object() => rpc.read().await.change(v, o).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"modify" => match params.take_two() {
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(v, o) if v.is_thing() && o.is_array() => rpc.read().await.modify(v, o).await,
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(v, o) if v.is_strand() && o.is_array() => rpc.read().await.modify(v, o).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"delete" => match params.take_one() {
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v if v.is_thing() => rpc.read().await.delete(v).await,
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v if v.is_strand() => rpc.read().await.delete(v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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// Specify the output format for text requests
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"format" => match params.needs_one() {
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Ok(Value::Strand(v)) => rpc.write().await.format(v).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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"version" => match params.len() {
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0 => Ok(format!("{}-{}", PKG_NAME, *PKG_VERS).into()),
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(chn).await,
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_ => return res::failure(id, Failure::INVALID_PARAMS).send(out, chn).await,
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},
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_ => return res::failure(id, Failure::METHOD_NOT_FOUND).send(chn).await,
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_ => return res::failure(id, Failure::METHOD_NOT_FOUND).send(out, chn).await,
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};
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// Return the final response
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match res {
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Ok(v) => res::success(id, v).send(chn).await,
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Err(e) => res::failure(id, Failure::custom(e.to_string())).send(chn).await,
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Ok(v) => res::success(id, v).send(out, chn).await,
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Err(e) => res::failure(id, Failure::custom(e.to_string())).send(out, chn).await,
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}
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}
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@ -278,6 +299,16 @@ impl Rpc {
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// Methods for authentication
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// ------------------------------
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async fn format(&mut self, out: Strand) -> Result<Value, Error> {
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match out.as_str() {
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"json" | "application/json" => self.format = Output::Json,
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"cbor" | "application/cbor" => self.format = Output::Cbor,
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"msgpack" | "application/msgpack" => self.format = Output::Pack,
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_ => return Err(Error::InvalidType),
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};
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Ok(Value::None)
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}
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async fn yuse(&mut self, ns: Strand, db: Strand) -> Result<Value, Error> {
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self.session.ns = Some(ns.0);
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self.session.db = Some(db.0);
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@ -4,12 +4,12 @@ use surrealdb::channel::Sender;
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use surrealdb::sql::Value;
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use warp::ws::Message;
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#[derive(Serialize)]
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enum Content<T> {
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#[serde(rename = "result")]
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Success(T),
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#[serde(rename = "error")]
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Failure(Failure),
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#[derive(Clone)]
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pub enum Output {
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Json, // JSON
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Cbor, // CBOR
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Pack, // MsgPack
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Full, // Full type serialization
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}
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#[derive(Serialize)]
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@ -19,12 +19,34 @@ pub struct Response<T> {
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content: Content<T>,
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}
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#[derive(Serialize)]
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enum Content<T> {
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#[serde(rename = "result")]
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Success(T),
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#[serde(rename = "error")]
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Failure(Failure),
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}
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impl<T: Serialize> Response<T> {
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// Send the response to the channel
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pub async fn send(self, chn: Sender<Message>) {
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let res = serde_json::to_string(&self).unwrap();
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let res = Message::text(res);
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let _ = chn.send(res).await;
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pub async fn send(self, out: Output, chn: Sender<Message>) {
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match out {
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Output::Json => {
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let res = serde_json::to_string(&self).unwrap();
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let res = Message::text(res);
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let _ = chn.send(res).await;
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}
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Output::Cbor => {
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let res = serde_cbor::to_vec(&self).unwrap();
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let res = Message::binary(res);
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let _ = chn.send(res).await;
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}
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Output::Pack => {
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let res = serde_pack::to_vec(&self).unwrap();
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let res = Message::binary(res);
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let _ = chn.send(res).await;
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}
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}
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}
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}
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