kopia lustrzana https://github.com/SP8EBC/ParaTNC
117 wiersze
2.5 KiB
C
117 wiersze
2.5 KiB
C
/*
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* api.c
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*
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* Created on: Apr 24, 2022
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* Author: mateusz
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*
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*
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* 19 maja, Krszystof Binek, miedy 12 a 13
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*/
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#include <api/api_content.h>
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#include "etc/api_configuration.h"
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#include "http_client/http_client.h"
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#include "stdint.h"
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/**
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* Buffers for generating JSON and URL
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*/
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#define API_BUFFER_LN 512
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char api_buffer[API_BUFFER_LN];
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#define URL_BUFFER_LN 96
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char api_url_buffer[URL_BUFFER_LN];
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/**
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* Index to move around a buffer with request body
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*/
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uint32_t api_buffer_idx = 0;
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/**
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* Value returned from http client
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*/
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uint8_t api_retval = 0xFF;
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/**
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* Cycle counter to control the frequency of api calls
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*/
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int8_t api_cycle_counter = 0;
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/**
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* This is used to retrigger specific api communication in case of any request
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* appears on the same call to `api_pooler` function. For code simplicity only one
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* API request is possible in the single 'api_pooler' cycle
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*/
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#define API_TRIGGER_STATUS (1 << 1)
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#define API_TRIGGER_MEASUREMENTS (1 << 2)
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int8_t api_retrigger_api_call = 0;
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/**
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* Pointers to base url and station name (stored within flash)
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*/
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const char * api_base_url;
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const char * api_station_name;
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typedef enum api_endpoint{
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PARAMETEO_STATUS,
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PARAMETEO_WX
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} api_endpoint_t;
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#define LN api_buffer_idx
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#define OUT api_buffer
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static void api_construct_url_status(api_endpoint_t endpoint) {
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if (api_base_url != 0x00 && api_station_name != 0x00) {
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memset(api_url_buffer, 0x00, URL_BUFFER_LN);
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switch (endpoint) {
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case PARAMETEO_STATUS:
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snprintf(api_url_buffer, URL_BUFFER_LN - 1, "%s/parameteo/%s/status", api_base_url, api_station_name);
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break;
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case PARAMETEO_WX:
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snprintf(api_url_buffer, URL_BUFFER_LN - 1, "%s/parameteo/%s/measurements", api_base_url, api_station_name);
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break;
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}
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}
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}
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static void api_callback(uint16_t http_code, char * content, uint16_t content_lenght) {
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}
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void api_init(const char * api_base, const char * station_name) {
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api_base_url = api_base;
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api_station_name = station_name;
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}
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void api_send_json_status(void) {
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BEGIN
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PRINT_ALL_STATUS
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END
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if (api_buffer_idx < API_BUFFER_LN) {
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api_construct_url_status(PARAMETEO_STATUS);
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api_retval = http_client_async_post(api_url_buffer, strlen(api_url_buffer), OUT, strlen(OUT), 0, api_callback);
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}
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}
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void api_send_json_measuremenets(void) {
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BEGIN
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PRINT_ALL_MEASUREMENTS
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END
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if (api_buffer_idx < API_BUFFER_LN) {
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api_construct_url_status(PARAMETEO_WX);
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api_retval = http_client_async_post(api_url_buffer, strlen(api_url_buffer), OUT, strlen(OUT), 0, api_callback);
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}
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}
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