Crate ocpp_rs

OCPP-RS

OCPP-RS is a Rust library for implementing the Open Charge Point Protocol (OCPP) in Rust.\ it currently only supports OCPP 1.6.

Usage

In Cargo.toml, add the following dependency:

[dependencies]
ocpp-rs = "^0.2"

Particularities

Since the original OCPP 1.6 protocol does not contain a type field for CallResult, when parsing CallResultlt, you need to handle Special cases where JSON payloads are ambiguous, like empty objects like: {}, these might get serialized as a EmptyResponse instead of the variant you are waiting for like GetConfiguration.

Look at this file to see how to properly handle CallResults: valid_call_result.rs

Example

Receiving a payload from a client:

use ocpp_rs::v16::parse::{self, Message};
use ocpp_rs::v16::call::{Action, Call};

// Example incoming message
let incoming_text = "[2, \"19223201\", \"BootNotification\", { \"chargePointVendor\": \"VendorX\", \"chargePointModel\": \"SingleSocketCharger\" }]";
let incoming_message = parse::deserialize_to_message(incoming_text);
if let Ok(Message::Call(call)) = incoming_message {

// Handle incoming message (Check the type of the message)
match call.payload {
        Action::BootNotification(_boot_notification) => {
            // Do something with boot_notification
        }
        _ => {
            // Handle other actions
        }
    }
}

Sending a payload to a client:

use ocpp_rs::v16::parse::Message;
use ocpp_rs::v16::call_result::CallResult;
use ocpp_rs::v16::call_result::ResultPayload;
use ocpp_rs::v16::call_result;
use ocpp_rs::v16::data_types::IdTagInfo;
use ocpp_rs::v16::parse;
let response = Message::CallResult(CallResult::new(
    "1234".to_string(),
    ResultPayload::StartTransaction(call_result::StartTransaction {
        transaction_id: 0,
        id_tag_info: IdTagInfo {
            status: ocpp_rs::v16::enums::ParsedGenericStatus::Accepted,
            expiry_date: None,
            parent_id_tag: None,
        },
    }),
));

let json = parse::serialize_message(&response);
println!("Sending to client: {:?}", json);

Modules

errors

v16