wasm-micro-runtime/samples/simple/wasm-apps/request_handler.c

/*
 * Copyright (C) 2019 Intel Corporation.  All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "wasm_app.h"

static void url1_request_handler(request_t *request)
{
    response_t response[1];
    attr_container_t *payload;

    printf("[resp] ### user resource 1 handler called\n");

    if (request->payload != NULL && request->fmt == FMT_ATTR_CONTAINER)
        attr_container_dump((attr_container_t *) request->payload);

    payload = attr_container_create("wasm app response payload");
    if (payload == NULL)
        return;

    attr_container_set_string(&payload, "key1", "value1");
    attr_container_set_string(&payload, "key2", "value2");

    make_response_for_request(request, response);
    set_response(response, CONTENT_2_05,
                 FMT_ATTR_CONTAINER,
                 (void *)payload,
                 attr_container_get_serialize_length(payload));
    api_response_send(response);

    attr_container_destroy(payload);
}

static void url2_request_handler(request_t *request)
{
    response_t response[1];
    make_response_for_request(request, response);
    set_response(response, DELETED_2_02, 0, NULL, 0);
    api_response_send(response);

    printf("### user resource 2 handler called\n");
}

void on_init()
{
    /* register resource uri */
    api_register_resource_handler("/url1", url1_request_handler);
    api_register_resource_handler("/url2", url2_request_handler);
}

void on_destroy()
{
    /* real destroy work including killing timer and closing sensor is
       accomplished in wasm app library version of on_destroy() */
}