Sending file over mqtt using mqttClient-for-Legato

zehrakausarhaider · December 3, 2020, 6:16pm

hi i am using mqttClient-for-Legato.
I am able to publish data.
But i am not able to send file using “mqtt pubfile topic filename”
It says cannot open file and I have already given all the permissions.

Any help would be appreciated

Zehra

jyijyi · December 4, 2020, 1:22am

From the code, it is simply using mqttClient_PublishFileContent() and readFile() in mqttClientApi.c to read the file you specified.
Suggest you debugging by trying to open it by copying those code to another hello world project.

github.com

nhonchu/mqttClient-for-Legato/blob/master/mqttClientApi/mqttClientApiComponent/mqttClientApi.c

/**
 * This module implements MQTT Client interacting with a MQTT Broker
 * The default broker is Sierra Wireless AirVantage server
 *
 * This component exposes an API, accessible by other Legato apps over IPC, refer to mqtt.api
 * 
 * Nhon Chu
 *
 *
 */

/* Legato Framework */
#include "legato.h"
#include "interfaces.h"


#include "le_info_interface.h"

#include "mqttAirVantage.h"

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kalaivani · March 16, 2023, 8:09am

hi any documents related to mqtt commands are available like mqtt_CreateSession, mqtt_SetConnectOptions

jyijyi · March 16, 2023, 8:56am

you can read the comment above the API:

github.com

legatoproject/legato-af/blob/master/apps/platformServices/mqttClient/mqttClientService/mqttClientService.c

/**
 * @file mqttClientService.c
 *
 * Implementation of MQTT Client Interface
 *
 * <hr>
 *
 * Copyright (C) Sierra Wireless Inc.
 *
 */

#include "legato.h"
#include "interfaces.h"

#include "MQTTClient.h"
#include "Socket.h"

//--------------------------------------------------------------------------------------------------
/**
 * This define specifies the max # of MQTT sessions to be created in memory pools & reference maps

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nayanhn · October 10, 2023, 5:50am

sir i am using this mqtt to connect throgh command line
GitHub - nhonchu/mqttClient-for-Legato: mqttClient application for Legato framework
but it is getting error that some file is missing

$ mkapp -t wp76xx mqttClient.adef
** ERROR:
/home/nayan/myworkspace/mangOH/apps/mqttClient-for-Legato/mqttClientApi/mqttClientApiComponent/Component.cdef:120:8: error: * Couldn’t find file ‘le_info.api.’

jyijyi · October 10, 2023, 6:10am

you can see here:

you need to add the -i path:

nayanhn · October 10, 2023, 10:41am

sir but this le_info.api. file is missing

jyijyi · October 10, 2023, 10:56am

i can see it is in here:

github.com

legatoproject/legato-af/blob/master/interfaces/modemServices/le_info.api

//--------------------------------------------------------------------------------------------------
/**
 * @page c_info Modem Information
 *
 * @ref le_info_interface.h "API Reference"
 *
 * <HR>
 *
 * This file contains prototype definitions for Modem Information APIs.
 *
 * @section le_info_binding IPC interfaces binding
 *
 * All the functions of this API are provided by the @b modemService.
 *
 * Here's a code sample binding to modem services:
 * @verbatim
   bindings:
   {
      clientExe.clientComponent.le_info -> modemService.le_info
   }

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nayanhn · October 10, 2023, 11:17am

TARGETS := $(MAKECMDGOALS)

CURDIR = $(shell pwd)

.PHONY: all $(TARGETS)
all: $(TARGETS)

$(TARGETS):
@echo ${MQTT_API_ROOT}
mkapp -v -t $@
-i $(LEGATO_ROOT)/interfaces/modemServices
-i $(CURDIR)/mqttClientApiComponent/paho
-i $(CURDIR)/mqttClientApiComponent/mqttAirVantage
-i $(CURDIR)/mqttClientApiComponent/mqttGeneric
-i $(CURDIR)/mqttClientApiComponent/tlsInterface
-i $(CURDIR)/mqttClientApiComponent/mbedtls/include
-i ${LEGATO_ROOT}/interfaces/modemServices
mqttClient.adef

clean:
rm -rf build* *.update

i have modified like this but still same error

jyijyi · October 10, 2023, 11:20am

maybe you first compile this application which will use le_info.api:

nayanhn · October 10, 2023, 11:26am

i am working in leaf ,know only i dowloaded the legato-af ,directly i tried ur infotest but it is showing same error

(lsh:wp76stable) nayan@nayan:~/myworkspace/legato-af/apps/infoTest$ mkapp -t wp76xx infoTest.adef
** ERROR:
/home/nayan/myworkspace/legato-af/apps/infoTest/infoTest/Component.cdef:10:8: error: * Couldn’t find file ‘le_info.api.’

jyijyi · October 10, 2023, 11:28am

You need to use the makefile inside

nayanhn · October 10, 2023, 12:04pm

sir i copied the file directly to the mqtt folder it copiled and build the app
will it be okay!

jyijyi · October 10, 2023, 12:11pm

Do you mean you can compile now?

nayanhn · October 10, 2023, 12:12pm

yes i compiled and got .update file
but i don’t know will it work

nayanhn · October 10, 2023, 12:32pm

sir when i update the file to board it is atomatically restart again and again and app is not staying why i don’t know sir do you have any reason

jyijyi · October 10, 2023, 1:22pm

I don’t know, you need to comment out those code and add it line by line to see which line makes the reset

nayanhn · October 17, 2023, 9:51am

sir i want to connect to thingsboard application through mqtt connection , i am using leaf workspace to build apps ,and i am using ‘mangOH-yellow-wp76xx_0.7.0’ version set up please tell me which app i can modify and build to use

Thanks in advance

jyijyi · October 17, 2023, 9:59am

do these work?

nayanhn · October 17, 2023, 10:20am

no sir these are not able to build in leaf environment,and another one is related to datahub

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Sending file over mqtt using mqttClient-for-Legato

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