Just connecting from a browser?

[David Aronchick]

I apologies for such a basic question, but I can't seem to figure out how to do this and the docs are all very specific.

I'm just trying to connect to a standard Gremlin DB (Cosmos) using gremlin. It works great from the server, but when I connect from the browser, I get this error:

Error: ws does not work in the browser. Browser clients must use the native WebSocket object

Here is the code:

Nothing terribly complicated, and the error seems to be pretty clear.

    

constructor() {

        var authenticator = new Gremlin.driver.auth.PlainTextSaslAuthenticator(`/dbs/${config.database}/colls/${config.collection}`, config.primaryKey);

        this.gremlin_config_options = {

            authenticator,

            traversalsource: "g",

            rejectUnauthorized: true,

            mimeType: "application/vnd.gremlin-v2.0+json"

        }

       var DriverRemoteConnection = Gremlin.driver.DriverRemoteConnection;

        this.Graph = Gremlin.structure.Graph;

        

        var dc = new DriverRemoteConnection(this.gremlin_websocket,this.gremlin_config_options);

        this.graph = new this.Graph();

        this.g = this.graph.traversal().withRemote(this.gremlin_websocket);

      };

When I do the following code, it completes without the Javascript error.

    constructor() {

        var authenticator = new Gremlin.driver.auth.PlainTextSaslAuthenticator(`/dbs/${config.database}/colls/${config.collection}`, config.primaryKey);

        this.gremlin_config_options = {

            authenticator,

            traversalsource: "g",

            rejectUnauthorized: true,

            mimeType: "application/vnd.gremlin-v2.0+json"

        }

        this.Graph = Gremlin.structure.Graph;

        

        this.gremlin_websocket = new WebSocket('ws://test_db.gremlin.cosmos.azure.com:8182/')

        var dc = new DriverRemoteConnection(this.gremlin_websocket,this.gremlin_config_options);

        this.graph = new this.Graph();

        this.g = this.graph.traversal().withRemote(this.gremlin_websocket);

      };

However, I need to pass along authentication and collection information (currently in the authenticator object). But WebSocket doesn't seem to support it, and Driver Remote Connection doesn't seem to natively take the websocket. What should I do?

[Stephen Mallette]

Answered on SO: https://stackoverflow.com/a/62150999/1831717

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[David Aronchick]

Oh that is a bummer! What's the preferred alternative?

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[Stephen Mallette]

I don't know that there is one. Judging from the comments on the original PR it seemed like that branch worked for people somehow. The reason for not merging was more with getting what I think were environmental issues with our test cases, not functionality. Perhaps you can try out the branch and see how it works for you.

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[David Aronchick]

I'll try that - this is an extremely low volume app, is there an alternative Gremlin solution here? I'm just looking to read-only download data :(

Do people just not use graph db backed websites?

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[Stephen Mallette]

maybe someone will correct me, but i don't think there was any particular reason to not support browsers. it was just an initial design choice.

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