firestoregrpccloudrun

A gRPC client library for Firestore, intended to run on Cloud Run.

Usage

Add this to your Cargo.toml:

toml [dependencies] firestore = { version = "0.1", package = "firestore_grpc_cloudrun" }

Examples

CreateDocument

src/main.rs

``` rust use firestore::*; use futures::tryjoin; use hyper::service::{makeservicefn, servicefn}; use hyper::{Body, Request, Response, Server}; use std::convert::Infallible; use std::net::SocketAddr;

[tokio::main]

async fn main() { let addr = SocketAddr::from(([0, 0, 0, 0], get_port()));

let make_svc = make_service_fn(|_conn| async {
    Ok::<_, Infallible>(service_fn(root))
});

let server = Server::bind(&addr).serve(make_svc);

if let Err(e) = server.await {
    eprintln!("server error: {}", e);
}

}

async fn root(req: Request) -> Result, Infallible> { let res = if let Ok(doc) = createdocument().await { format!("Document: {:?}", doc) } else { "Failed to get document.".into() }; Ok(Response::new(res.into())) }

async fn createdocument() -> Result { let (mut client, projectid) = tryjoin!( firestore::getclient(), firestore::computemetadata::getprojectid(), )?; let parent = format!("projects/{}/databases/(default)/documents", projectid); let collectionid = "greetings".into(); let documentid = "".into(); let mut fields = std::collections::HashMap::new(); fields.insert( "message".into(), Value { valuetype: Some(value::ValueType::StringValue( "Hello world from CloudRun!".into(), )), }, ); let document = Some(Document { name: "".into(), fields, createtime: None, updatetime: None, }); let res = client .createdocument(CreateDocumentRequest { parent, collectionid, documentid, document, mask: None, }) .await?; Ok(res.into_inner()) }

fn getport() -> u16 { std::env::var("PORT") .ok() .andthen(|x| x.parse().ok()) .unwrap_or(8080) } ```

Cargo.toml

toml [dependencies] firestore = { version = "*", package = "firestore_grpc_cloudrun" } futures = "0.3" hyper = "0.13" tokio = { version = "0.2", features = ["full"] }

Dockerfile

``` Dockerfile FROM rust:1-stretch as build-env WORKDIR /app ADD . . RUN rustup update && rustup component add rustfmt && cargo build --release

FROM debian:stretch-slim WORKDIR /app RUN apt-get update && apt-get install -y libgcc1 libgomp1 libstdc++6 ca-certificates && update-ca-certificates && rm -rf /var/lib/apt/lists/*

COPY --from=build-env /app/target/release/cloudfunction-firestore /app/main ENTRYPOINT ["./main"]

```