CD
Cloudflare Developers•2w ago
jose luis

Is it possible to use service bindings with `vectorize` db?

I have a worker A that uses worker B. This worker B has bindings to a vectorize index (this index works when used by itself). Both are deployed (given that vectorize doesn't work locally) , but this fail with Cannot read properties of undefined (reading 'VECTORIZE'), which is the binding defined in the wrangler.toml for WorkerB. I guess i'm missing something obvious or this cannot work. (the deployed url from the worker A fails with Error 1101) 
//workerB.ts
export interface Env {
    VECTORIZE: Vectorize;
}
export default class WorkerB extends WorkerEntrypoint {
    // Currently, entrypoints without a named handler are not supported
    async fetch() {
        return new Response(null, { status: 404 });
    }
    async getSimilarImages(env: Env) {
        return env.VECTORIZE.queryById('FJ4188-100_0_0_crop_1_res');
    }
}
//WorkerA.ts
export default {
    async fetch(request, env) {
        // const result = await env.WORKER_B.add(1, 2);
        const result = await env.WORKER_B.getSimilarImages();
        console.log(result);
        return new Response(result, { status: 200 });
        },
};
//workerB.ts
export interface Env {
    VECTORIZE: Vectorize;
}
export default class WorkerB extends WorkerEntrypoint {
    // Currently, entrypoints without a named handler are not supported
    async fetch() {
        return new Response(null, { status: 404 });
    }
    async getSimilarImages(env: Env) {
        return env.VECTORIZE.queryById('FJ4188-100_0_0_crop_1_res');
    }
}
//WorkerA.ts
export default {
    async fetch(request, env) {
        // const result = await env.WORKER_B.add(1, 2);
        const result = await env.WORKER_B.getSimilarImages();
        console.log(result);
        return new Response(result, { status: 200 });
        },
};
2 Replies
Walshy
Walshy•2w ago
That won't work like you expect - you can access env from entrypoints with this.env https://developers.cloudflare.com/workers/runtime-apis/bindings/service-bindings/rpc/#bindings-env 
    async getSimilarImages() {
        return this.env.VECTORIZE.queryById('FJ4188-100_0_0_crop_1_res');
    }
    async getSimilarImages() {
        return this.env.VECTORIZE.queryById('FJ4188-100_0_0_crop_1_res');
    }
jose luis
jose luisOP•2w ago
thanks!

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