Demo application for using the AT&T IoT Starter Kit Powered by AWS.
Dependencies: SDFileSystem
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IoT Starter Kit Powered by AWS Demo
This program demonstrates the AT&T IoT Starter Kit sending data directly into AWS IoT. It's explained and used in the Getting Started with the IoT Starter Kit Powered by AWS on starterkit.att.com.
What's required
- AT&T IoT LTE Add-on (also known as the Cellular Shield)
- NXP K64F - for programming
- microSD card - used to store your AWS security credentials
- AWS account
- Python, locally installed
If you don't already have an IoT Starter Kit, you can purchase a kit here. The IoT Starter Kit Powered by AWS includes the LTE cellular shield, K64F, and a microSD card.
Diff: AWS_openssl/aws_iot_src/utils/aws_iot_json_utils.h
- Revision:
- 15:6f2798e45099
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/AWS_openssl/aws_iot_src/utils/aws_iot_json_utils.h Thu Dec 01 18:05:38 2016 +0000 @@ -0,0 +1,190 @@ +/* + * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. 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. + * A copy of the License is located at + * + * http://aws.amazon.com/apache2.0 + * + * or in the "license" file accompanying this file. This file 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. + */ + +/** + * @file aws_json_utils.h + * @brief Utilities for manipulating JSON + * + * json_utils provides JSON parsing utilities for use with the IoT SDK. + * Underlying JSON parsing relies on the Jasmine JSON parser. + * + */ + +#ifndef AWS_IOT_SDK_SRC_JSON_UTILS_H_ +#define AWS_IOT_SDK_SRC_JSON_UTILS_H_ + +#include <stdbool.h> +#include <stdint.h> + +#include "aws_iot_error.h" +#include "jsmn.h" + +// utility functions +/** + * @brief JSON Equality Check + * + * Given a token pointing to a particular JSON node and an + * input string, check to see if the key is equal to the string. + * + * @param json json string + * @param tok json token - pointer to key to test for equality + * @param s input string for key to test equality + * + * @return 0 if equal, 1 otherwise + */ +int8_t jsoneq(const char *json, jsmntok_t *tok, const char *s); + +/** + * @brief Parse a signed 32-bit integer value from a JSON node. + * + * Given a JSON node parse the integer value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param i address of int32_t to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseInteger32Value(int32_t *i, const char *jsonString, jsmntok_t *token); + +/** + * @brief Parse a signed 16-bit integer value from a JSON node. + * + * Given a JSON node parse the integer value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param i address of int16_t to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseInteger16Value(int16_t *i, const char *jsonString, jsmntok_t *token); + +/** + * @brief Parse a signed 8-bit integer value from a JSON node. + * + * Given a JSON node parse the integer value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param i address of int8_t to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseInteger8Value(int8_t *i, const char *jsonString, jsmntok_t *token); + +/** + * @brief Parse an unsigned 32-bit integer value from a JSON node. + * + * Given a JSON node parse the integer value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param i address of uint32_t to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseUnsignedInteger32Value(uint32_t *i, const char *jsonString, jsmntok_t *token); + +/** + * @brief Parse an unsigned 16-bit integer value from a JSON node. + * + * Given a JSON node parse the integer value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param i address of uint16_t to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseUnsignedInteger16Value(uint16_t *i, const char *jsonString, jsmntok_t *token); + +/** + * @brief Parse an unsigned 8-bit integer value from a JSON node. + * + * Given a JSON node parse the integer value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param i address of uint8_t to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseUnsignedInteger8Value(uint8_t *i, const char *jsonString, jsmntok_t *token); + +/** + * @brief Parse a float value from a JSON node. + * + * Given a JSON node parse the float value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param f address of float to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseFloatValue(float *f, const char *jsonString, jsmntok_t *token); + +/** + * @brief Parse a double value from a JSON node. + * + * Given a JSON node parse the double value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param d address of double to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseDoubleValue(double *d, const char *jsonString, jsmntok_t *token); + +/** + * @brief Parse a boolean value from a JSON node. + * + * Given a JSON node parse the boolean value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param b address of boolean to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseBooleanValue(bool *b, const char *jsonString, jsmntok_t *token); + +/** + * @brief Parse a string value from a JSON node. + * + * Given a JSON node parse the string value from the value. + * + * @param jsonString json string + * @param tok json token - pointer to JSON node + * @param s address of string to be updated + * + * @return NONE_ERROR - success + * @return JSON_PARSE_ERROR - error parsing value + */ +IoT_Error_t parseStringValue(char *buf, const char *jsonString, jsmntok_t *token); + +#endif /* AWS_IOT_SDK_SRC_JSON_UTILS_H_ */ +