From: "Björn Höfling" <bjoern.hoefling@bjoernhoefling.de>
To: Laura Lazzati <laura.lazzati.15@gmail.com>,
guix-devel <guix-devel@gnu.org>
Subject: IPFS trouble
Date: Tue, 18 Dec 2018 14:00:30 +0100 [thread overview]
Message-ID: <20181218140030.3545935e@alma-ubu> (raw)
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Hi Laura,
I'm sending this also to guix-devel [and sorry for the previous, empty,
private mail, I was too fast on the sending button].
Note: I'm also new to IPFS, so I hope everything is correct here, if
someone knows better, please reply.
On Tue, 18 Dec 2018 00:04:56 -0300
Laura Lazzati <laura.lazzati.15@gmail.com> wrote:
> > A good guide is:
> > https://medium.com/textileio/the-definitive-guide-to-publishing-content-on-ipfs-ipns-dfe751f1e8d0.
> Sorry, I read the documentation, but I am mixed up.
> I have my peer identity, and my /ipfs/hash...
> And I find confusing several things:
> If I run ipfs add myfile, using my command line, I cannot find myfile
> in my node. even the add command returns a hash for that file I guess.
> And if I run ipfs ls or cat that hash, the file is shown.
I don't get what you mean with "I cannot find my file". Where are you
looking for it?
> I found useful for instance the webui, but when running ipfs add, my
> files don't appear there if I open it and the other way around either:
> the files are there if I upload them in the webui, and they have a
> hash. I can copy the hash from the webui, but it doesn't work if I run
> ipfs ls on that hash. And the files added with ipfs add myfile do not
> appear in the webui. The webui however has an option to share your
> file, I don't know if that is useful.
You have in IPFS file-objects and directory-objects. The command 'ipfs
ls' is for listing the contents of directory-objects (i.e. list the
files in that directory). If you use it on file-objects (that exit in
the store), the command just returns with no output.
This works for me:
I have the daemon down, i.e. no 'ipfs daemon' started.
Then I can still add things to my local IPFS-store:
```
mkdir baz
echo "foo" > baz/foo.txt
echo "bar" > baz/bar.txt
echo "Hello World, now it is $(date -u -Ins)" > baz/hello.txt
cat baz/hello.txt
Hello World, now it is 2018-12-18T12:08:57,304514914+00:00
ipfs add -r baz/
added QmTz3oc4gdpRMKP2sdGUPZTAGRngqjsi99BPoztyP53JMM baz/bar.txt
added QmYNmQKp6SuaVrpgWRsPTgCQCnpxUYGq76YEKBXuj2N4H6 baz/foo.txt
added QmXXZWRsLhFAHNWW6tH4TJVB2UiUPsUX8TZhYavqTne6RH baz/hello.txt
added QmZ9iMU1iKRpAs7dR7XTLGaYtkcYFn6EiMXRhqpk5jaeNg baz
67 B / 67 B
[=========================================================] 100.00%
Now I can open the web-browser:
localhost:9090/ipfs/QmYNmQKp6SuaVrpgWRsPTgCQCnpxUYGq76YEKBXuj2N4H6
--> (Note:I changed my port from default 8080 to 9090, on 8080 is
already something listening) Unable to connect, I don't have the daemon
up yet.
https://ipfs.io/ipfs/QmYNmQKp6SuaVrpgWRsPTgCQCnpxUYGq76YEKBXuj2N4H6
--> Shows "foo", as this Hash is already uploaded in the global network
by someone else.
https://ipfs.io/ipfs/QmZ9iMU1iKRpAs7dR7XTLGaYtkcYFn6EiMXRhqpk5jaeNg
--> That is with the hash of the directory. Times out, this is not found
on the global network.
Starting daemon:
ipfs daemon
Browser:
localhost:5001/webui
Redirects:
http://localhost:5001/ipfs/QmSDgpiHco5yXdyVTfhKxr3aiJ82ynz8V14QcGKicM3rVh/#/
Entering hash of "foo" in the "Explore" tab:
QmYNmQKp6SuaVrpgWRsPTgCQCnpxUYGq76YEKBXuj2N4H6
Finds it, I can view it.
Entering hash of "baz" directory:
http://localhost:9090/ipfs/QmZ9iMU1iKRpAs7dR7XTLGaYtkcYFn6EiMXRhqpk5jaeNg
Yes, it lists the directory.
Globally available:
https://ipfs.io/ipfs/QmZ9iMU1iKRpAs7dR7XTLGaYtkcYFn6EiMXRhqpk5jaeNg
I can see the directory structure. And I can see the files foo.txt,
bar.txt and hello.txt listed:
https://ipfs.io/ipfs/QmZ9iMU1iKRpAs7dR7XTLGaYtkcYFn6EiMXRhqpk5jaeNg/bar.txt
But, the "hello.txt" takes its time to download, until now I still
don't see it:
https://ipfs.io/ipfs/QmZ9iMU1iKRpAs7dR7XTLGaYtkcYFn6EiMXRhqpk5jaeNg/hello.txt
Probably that's because it first needs to search the network and find
my little local host for that file. Hm. Strange.
Ah, after 5 minutes, it's there! Maybe that's also your problem?
Going to my server, daemon is down by default:
myserver$ ipfs ls QmYNmQKp6SuaVrpgWRsPTgCQCnpxUYGq76YEKBXuj2N4H6
Error: merkledag: not found
myserver$ echo "foo" > foo.txt
myserver$ ipfs add foo.txt
added QmYNmQKp6SuaVrpgWRsPTgCQCnpxUYGq76YEKBXuj2N4H6 foo.txt
4 B / 4 B
[===========================================================] 100.00%
myserver$ ipfs ls QmYNmQKp6SuaVrpgWRsPTgCQCnpxUYGq76YEKBXuj2N4H6
myserver$
(i.e., no error, no output)
myserver$ ipfs daemon &
Looking for the directory:
myserver$ ipfs ls QmZ9iMU1iKRpAs7dR7XTLGaYtkcYFn6EiMXRhqpk5jaeNg
[Waiting 3 minutes nothing happens, then:]
QmTz3oc4gdpRMKP2sdGUPZTAGRngqjsi99BPoztyP53JMM 12 bar.txt
QmYNmQKp6SuaVrpgWRsPTgCQCnpxUYGq76YEKBXuj2N4H6 12 foo.txt
QmXXZWRsLhFAHNWW6tH4TJVB2UiUPsUX8TZhYavqTne6RH 67 hello.txt
myserver$ ipfs cat
QmZ9iMU1iKRpAs7dR7XTLGaYtkcYFn6EiMXRhqpk5jaeNg/hello.txt Hello World,
now it is 2018-12-18T12:08:57,304514914+00:00
(instantly!)
Hope this helps a bit,
Björn
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next reply other threads:[~2018-12-18 14:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-18 13:00 Björn Höfling [this message]
2018-12-18 13:07 ` IPFS trouble Laura Lazzati
2018-12-18 15:56 ` Laura Lazzati
2018-12-18 16:02 ` Ricardo Wurmus
2018-12-18 16:10 ` Hector Sanjuan
2018-12-19 8:37 ` Pierre Neidhardt
2018-12-19 9:57 ` Gábor Boskovits
2018-12-19 15:47 ` swedebugia
2018-12-19 15:08 ` Ludovic Courtès
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