Possible to post to Apollo server with protobuf?

If you can use apollo-server-express, you can achieve that as long as you can convert the protobuf to json again on the server, which I guess it is possible with protobuf.js.

apollo-server or apollo-server-express expects three key-pair values in the request body

1. operationName

2. variables

3. query

This is how request body looks like (logged using morgan-body)

If you are using apollo-server-express, you can use your custom express middleware in which you can deserialize the protobuf to json and add the json to the req.body for Apollo Server.

Changing from apollo-server to apollo-server-express just takes a few steps and no change in your apollo server config

// import it from apollo-server-express instead of apollo-server
const { ApolloServer } = require('apollo-server-express');
const express = require('express');
const app = express();

app.use((req, res, next) => {
    // Intercept the request before it reaches the Apollo Server
    // Use protobuf.js to deserialize the request body into json
    // Add the json to req.body
    // Call the next() to go to next middleware
    next();
});

const server = new ApolloServer({/* Your apollo server config */})

server.applyMiddleware({ app });
app.listen({ port: 4000 }, () => console.log(`? Server ready at http://localhost:4000${server.graphqlPath}`));