Data Identifier
Each datum in DeepBlue possesses a unique Identifier. This identifier is returned in all listing, search, query, and insert operations. The identifiers can be divided into two parts: the prefix, which is one or two letters, indicating the data type, and a numeric value.
The following table contains the identifier prefixes and their data type:
| Identifier | Data Type |
|---|---|
| a | Annotation |
| e | Experiment |
| g | Genome |
| em | Epigenetic Mark |
| bs | BioSource |
| s | Sample |
| p | Project |
| t | Technique |
| q | Query |
The info command is to inspect the identifier content:
server.info("e1", user_key)
The info command returns a list of maps, where each map contains the information of an id.
We can use the info command to view the samples' content:
(s, related) = server.get_biosource_related("blood", user_key)
related_names = server.extract_names(related)[1] # get the BioSource names
(s, samples) = server.list_samples(related_names, {}, user_key)
samples_id = server.extract_ids(samples)[1] # get samples ID
for _id in samples_id[:20] : # the first 20 samples
print server.info(_id, user_key)