Hi again,
after looking at Tamás' camproxy and poking around in the API docs for
client, search, and schema I managed to get uploading and downloading a
file done with the following (error handling omitted for brevity):
// upload
// get io.Reader r for file "filename"
ctx := context.Background()
cl, _ := client.New()
ref, _ := schema.WriteFileFromReader(ctx, cl, filename, r)
I instatiated the client without any options for now. The upload seems
to work fine. Downloading a file when I've got just its name I found a
little more tricky. Am I right in thinking that I need to do a search
for the filename and then use the resulting blobref to get at the
contents. That what I did and it worked.
// search for filename
qry := &search.SearchQuery {
Constraint: &search.Constraint {
File: &search.FileConstraint {
FileName: &search.StringConstraint{Equals: filename},
},
},
Limit: 1,
}
sr, _ := cl.Query(ctx, qry)
if len(sr.Blobs) < 1 {
// file not found
}
// download
rc, _ := schema.NewFileReader(ctx, cl, sr.Blobs[0].Blob)
defer rc.Close()
rc.LoadAllChunks()
// io.Copy or whatever contents from rc
Is this more or less the right way to do it or am I doing it wrong/too
complicated/...? For some reason using "Expression" in SearchQuery
didn't work when the filename contained spaces, even when I put it in
double quotes (filename:"file with spaces.jpg"). But I didn't yet bother
to find out why, because the explicit way using Constraint worked.
Cheers,
Chris
On Tue, Sep 04, 2018 at 08:16:49AM +0200, Gulácsi Tamás wrote:
> Take a look at github.com/tgulacsi/camproxy - it uses ther Perkeep
> (camlistore)
> client libraries to provide a simple PUT/GET storage backend functionality.
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