feat(client_async): allow compiling for wasm

Sets up some feature flags to allow compiling for wasm.

Due to limitation in rust-postgres, this only covers the async client.

Requires sfackler/rust-postgres#1116.

crates/client_async/Cargo.toml

@@ -11,7 +11,8 @@ categories = ["database"]
 keywords = ["postgresql", "query", "generator", "sql", "tokio-postgres"]
 
 [features]
-default = ["deadpool"]
+default = ["deadpool", "tokio-postgres/default"]
+js = ["cornucopia_client_core/js", "tokio-postgres/js"]
 deadpool = ["dep:deadpool-postgres"]
 with-serde_json-1 = ["cornucopia_client_core/with-serde_json-1"]
 
@@ -25,7 +26,7 @@ cornucopia_client_core = { path = "../client_core", version = "0.4.0" }
 async-trait = "0.1.63"
 
 # rust-postgres interaction
-tokio-postgres = "0.7.7"
+tokio-postgres = { version = "0.7.7", default-features = false }
 
 # connection pooling
 deadpool-postgres = { version = "0.12.1", optional = true }

crates/client_core/Cargo.toml

@@ -13,6 +13,7 @@ keywords = ["postgresql", "query", "generator", "sql", "tokio-postgres"]
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [features]
+js = ["postgres-protocol/js", "postgres-types/js"]
 with-serde_json-1 = ["postgres-types/with-serde_json-1", "serde", "serde_json"]
 
 [dependencies]

crates/client_sync/Cargo.toml

@@ -13,6 +13,7 @@ keywords = ["postgresql", "query", "generator", "sql", "tokio-postgres"]
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [features]
+js = ["cornucopia_client_core/js"]
 with-serde_json-1 = ["cornucopia_client_core/with-serde_json-1"]
 
 [dependencies]