CODEWITHSUNDEEP
httpmicrocontrollerethernetlwipstm32f4
ELMahdi akrim
ELMahdi akrim

Reputation: 33

GET http request from Microcontroller to server (API)

I'm working with a stm32f4 microcontroller using lwip/stack, i use it to controle send http requests via ethernet . the following code works fine: 

   sprintf(buffer, "GET /api/callAction?deviceID=80&name=turnOn\r\n");
   strcat(buffer, "Host: 192.168.2.7\r\n");
   strcat(buffer, "Connection: close\r\n");
   strcat(buffer, "\r\n");

the problem is when the sever needs authentication like this :

 admin:[email protected]/api/callAction?deviceID=80&name=turnOn

i have tried adding an authorization part to the code : 

 strcat(buffer, "Host: admin:[email protected]\r\n");

But the http request doesn't work .

Any ideas? ps: im using Keil ARM /stm32f4 / lwip stack Server: Fibaro home center lite

Upvotes: 1

Views: 1680

Answers (1)

Gianluca Ghettini
Gianluca Ghettini

Reputation: 11638

Have a read here:

https://en.wikipedia.org/wiki/Basic_access_authentication

you want to pass this string

Authorization: Basic XXXXXXXXXXXXXXXX

where XXXXXXXXXXXXXXXX is the Base64 version of username:password

for example, if username is Aladdin and password is OpenSesame then you have to Base64 encode the string Aladdin:OpenSesame which results into QWxhZGRpbjpPcGVuU2VzYW1l

you string is then:

Authorization: Basic QWxhZGRpbjpPcGVuU2VzYW1l

Just strcat it as you do for all the other stuff:

strcat(buffer, "Authorization: Basic QWxhZGRpbjpPcGVuU2VzYW1l\r\n");

Upvotes: 1

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