@onflow/transport-grpc

---

title: Transport GRPC description: Sends an interaction to an access node via the GRPC Rest API and returns a response.

Status

• Last Updated: Jan 13th 2022
• Stable: Yes
• Risk of Breaking Change: Medium

This package is working and in active development, breaking changes may happen.

Usage

Install

npm install --save @onflow/transport-grpc

Integration with FCL

By default @onflow/fcl defaults to using the HTTP Access Node endpoint via the HTTP Transport package (@onflow/transport-http). This may be overriden, however.

If using the gRPC Access API, the sdk.transport configuration key must be populated as this value defaults to the HTTP API transport. The SDK can be configured to use the gRPC API transport as follows:

import { config } from "@onflow/fcl"
import { send as transportGRPC } from "@onflow/transport-grpc"

config({
  "accessNode.api": "https://access-testnet.onflow.org",
  "sdk.transport": transportGRPC
})

This will override the HTTP Transport and use the gRPC Transport instead.

📖 gRPC Access API URLs can be found here. The public Flow gRPC access nodes are accessible at:

• Testnet https://access-testnet.onflow.org
• Mainnet https://access-mainnet.onflow.org
• Local Emulator 127.0.0.1:3569

For more information, please consult the FCL-JS SDK guidelines.

For information about installing and configuring FCL, see the FCL Quick Start Tutorial.