HTML Form Output To File

[dave_w]

Hi,

Sorry, as is said, I know just enough to be dangerous.

I have an IoT system that does not have an O/S. I would like to send a GET command to my web site to fetch data from a form on a web page on my web site.

I can create the form just fine, and read and print all the fields. What I haven't figured out from the examples I've looked at is if I can put that data into a file on my web site so that I can GET the data in the form from my IoT.

Admittedly, I'm not sure this can be done. My IoT does not have a server so I can't POST data in the other direction.

Does what I'm trying to do make any sense? Is it possible?

Always trying to learn new things. Thanks for the advice.

Dave

Addendum:

OK, So I now know I can put a file on my web site and fetch it just fine from a browser. So I believe I can do the same with a GET. That would just leave saving a file. (Spoken as if I know what the heck I'm talking about. )

 

[dave_w]

Nevermind. After many searches and a lot of trying, I figured it out.

 

[Jweb]

Nevermind. After many searches and a lot of trying, I figured it out.

Glad you figured it out. Would you mind sharing what you ended up doing?

 

[dave_w]

Glad you figured it out. Would you mind sharing what you ended up doing?

Of course, an obvious question. Again, it pre-supposes I know what the heck I'm doing. But I'll try.

I guess there are 2 issues. One is getting the data into a file, and the second is getting the file from my web site. I found some php examples for creating files and writing to the web site. I'm not running a server (but who knows how this works, you better than me), just saving the file. Then through experimentation I found that I could just GET a file by doing GET <url><filename>. In my lack of knowledge I didn't expect that to work.

So after much attempts, re-attempts, re-re-attempts (repeat N times), I was also able to encrypt the file before saving, then have my IoT fetch the file for configuration on a button push. I have no way to send unsolicited data to my IoT because I have not implemented a server on it, but the user can manually delete the file on my web site.

In the end, that all works great. Now if I could just get the new R4 cert files to load in my IoT (no luck so far), I'll be good to go.

Sorry I didn't post this previously.

Dave

 

[Jweb]

Of course, an obvious question. Again, it pre-supposes I know what the heck I'm doing. But I'll try.

I guess there are 2 issues. One is getting the data into a file, and the second is getting the file from my web site. I found some php examples for creating files and writing to the web site. I'm not running a server (but who knows how this works, you better than me), just saving the file. Then through experimentation I found that I could just GET a file by doing GET <url><filename>. In my lack of knowledge I didn't expect that to work.

So after much attempts, re-attempts, re-re-attempts (repeat N times), I was also able to encrypt the file before saving, then have my IoT fetch the file for configuration on a button push. I have no way to send unsolicited data to my IoT because I have not implemented a server on it, but the user can manually delete the file on my web site.

In the end, that all works great. Now if I could just get the new R4 cert files to load in my IoT (no luck so far), I'll be good to go.

Sorry I didn't post this previously.

Dave

No worries! I was just curious to see what you did.

I admittedly have very limited experience with this sort of thing but I could see it coming up in some form, so thanks for sharing!

Wish I could help with cert files but good luck

 

[gavindrewusa]

I really appreciate how detailed and easy-to-follow your instructions are. It is clear you put a lot of effort. Your step by step instructions were clear and easy to follow. Managed to implement it without any issues.

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