* PubSeq REST API

Here we document the public REST API that comes with PubSeq. The tests
run in the amazing emacs [[https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-python.html][org-babel]].  See the bottom of this document
for running the tests inside emacs.

** Introduction

We built a REST API for COVID-19 PubSeq. The API source code can be
found in [[https://github.com/arvados/bh20-seq-resource/tree/master/bh20simplewebuploader/api.py][api.py]]. To see if the service is up try

#+begin_src sh
curl http://covid19.genenetwork.org/api/version
#+end_src

#+begin_src js
{
  "service": "PubSeq",
  "version": 0.1
}
#+end_src

The Python3 version is

#+begin_src python :session :exports both
import requests
response = requests.get("http://covid19.genenetwork.org/api/version")
response_body = response.json()
assert response_body["service"] == "PubSeq", "PubSeq API not found"
response_body
#+end_src

#+RESULTS:
| service | : | PubSeq | version | : | 0.1 |

** Fetch EBI XML

PubSeq provides an API that is used to export formats that are
suitable for uploading data to EBI/ENA from our [[http://covid19.genenetwork.org/export][EXPORT]] menu. This is
documented [[http://covid19.genenetwork.org/blog?id=using-covid-19-pubseq-part6][here]].

#+begin_src python :session :exports both
requests.get("http://covid19.genenetwork.org/api/ebi/sample-MT32690.1.xml").text
#+end_src

#+RESULTS:
#+begin_example
<?xml version="1.0" encoding="UTF-8"?>
<SAMPLE_SET>
  <SAMPLE alias="MT32690.1" center_name="COVID-19 PubSeq">
    <TITLE>COVID-19 PubSeq Sample</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>2697049</TAXON_ID>
      <SCIENTIFIC_NAME>Severe acute respiratory syndrome coronavirus 2</SCIENTIFIC_NAME>
      <COMMON_NAME>SARS-CoV-2</COMMON_NAME>
    </SAMPLE_NAME>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>investigation type</TAG>
        <VALUE></VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>sequencing method</TAG>
        <VALUE></VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection date</TAG>
        <VALUE></VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geographic location (latitude)</TAG>
        <VALUE></VALUE>
     <UNITS>DD</UNITS>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geographic location (longitude)</TAG>
        <VALUE></VALUE>
     <UNITS>DD</UNITS>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
     <TAG>geographic location (country and/or sea)</TAG>
     <VALUE></VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geographic location (region and locality)</TAG>
        <VALUE></VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>environment (material)</TAG>
        <VALUE></VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>ENA-CHECKLIST</TAG>
        <VALUE>ERC000011</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
</SAMPLE_SET>
#+end_example

* Configure emacs to run tests

Execute a code
block with C-c C-c. You may need to set

#+begin_src elisp
(org-babel-do-load-languages
 'org-babel-load-languages
 '((python . t)))
(setq org-babel-python-command "python3")
#+end_src

#+RESULTS:
: python3

To skip confirmations you may also want to set

: (setq org-confirm-babel-evaluate nil)