libcoap - coap Data processing#
Adaptation status unknown
Note
This page document is automatically generated by this file. If there is any error, please submit issue or help modify pr, thank you！
Tip
This library has its own demo,click this link to view libcoap demo examples
libcoap.new(code, uri, headers, payload)#
create a coap packet
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
coap code, for example libcoap.GET/libcoap.POST/libcoap.PUT/libcoap.DELETE |
string |
Target URI, required, no need to start/ |
table |
Request header, similar to http headers, optional |
string |
The request body, similar to the body of http, optional |
Return Value
return value type |
explanation |
|---|---|
userdata |
coap Packet |
Examples
-- Create a data packet requesting server time
local coapdata = libcoap.new(libcoap.GET, "time")
local data = coapdata:rawdata()
libcoap.parse(str)#
Parsing coap packets
Parameters
Incoming Value Type |
Explanation |
|---|---|
string |
coap Packet |
Return Value
return value type |
explanation |
|---|---|
userdata |
coap packet, which is returned if the parsing fails nil |
Examples
-- Parsing Server Incoming Packets
local coapdata = libcoap.parse(indata)
log.info("coapdata", coapdata:hcode(), coapdata:data())
coapdata:msgid()#
of a coap packet msgid
Parameters
None
Return Value
return value type |
explanation |
|---|---|
int |
coap of the packet msgid |
Examples
-- Parsing Server Incoming Packets
local coapdata = libcoap.parse(indata)
log.info("coapdata", coapdata:msgid())
coapdata:token()#
of a coap packet token
Parameters
None
Return Value
return value type |
explanation |
|---|---|
string |
coap of the packet token |
Examples
-- Parsing Server Incoming Packets
local coapdata = libcoap.parse(indata)
log.info("coapdata", coapdata:token())
coapdata:rawdata()#
Get the binary data of the coap packet for sending to the server
Parameters
None
Return Value
return value type |
explanation |
|---|---|
string |
coap Binary data of the packet |
Examples
-- Parsing Server Incoming Packets
local coapdata = libcoap.new(libcoap.GET, "time")
netc:send(coapdata:rawdata())
coapdata:code()#
of a coap packet code
Parameters
None
Return Value
return value type |
explanation |
|---|---|
int |
coap of the packet code |
Examples
-- Parsing Server Incoming Packets
local coapdata = libcoap.parse(indata)
log.info("coapdata", coapdata:code())
coapdata:hcode()#
Get the HTTP code of the coap packet, which is more friendly than the original code of coap.
Parameters
None
Return Value
return value type |
explanation |
|---|---|
int |
coap The http code of the packet, for example 200,205,404 |
Examples
-- Parsing Server Incoming Packets
local coapdata = libcoap.parse(indata)
log.info("coapdata", coapdata:hcode())
coapdata:type(t)#
Get the type of the coap packet, for example libcoap.CON/NON/ACK/RST
Parameters
Incoming Value Type |
Explanation |
|---|---|
int |
New type value, optional |
Return Value
return value type |
explanation |
|---|---|
int |
coap of the packet type |
Examples
-- Parsing Server Incoming Packets
local coapdata = libcoap.parse(indata)
log.info("coapdata", coapdata:type())
coapdata:data()#
of a coap packet data
Parameters
None
Return Value
return value type |
explanation |
|---|---|
string |
coap of the packet data |
Examples
-- Parsing Server Incoming Packets
local coapdata = libcoap.parse(indata)
log.info("coapdata", coapdata:data())