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update on the ibmq client #379

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Merged
Takishima merged 1 commit into from
Sep 23, 2020
Merged

update on the ibmq client #379

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37 changes: 14 additions & 23 deletions projectq/backends/_ibm/_ibm_http_client.py
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Original file line number Diff line number Diff line change
Expand Up @@ -129,7 +129,7 @@ def _authenticate(self, token=None):
def _run(self, info, device):
"""
Run the quantum code to the IBMQ machine.
Update since March2020: only protocol available is what they call
Update since September 2020: only protocol available is what they call
'object storage' where a job request via the POST method gets in
return a url link to which send the json data. A final http validates
the data communication.
Expand Down Expand Up @@ -162,19 +162,10 @@ def _run(self, info, device):
**json_step1)
request.raise_for_status()
r_json = request.json()
download_endpoint_url = r_json['objectStorageInfo'][
'downloadQObjectUrlEndpoint']
upload_endpoint_url = r_json['objectStorageInfo'][
'uploadQobjectUrlEndpoint']
upload_url = r_json['objectStorageInfo']['uploadUrl']
execution_id = r_json['id']

# STEP2: WE USE THE ENDPOINT TO GET THE UPLOT LINK
json_step2 = {'allow_redirects': True, 'timeout': (5.0, None)}
request = super(IBMQ, self).get(upload_endpoint_url, **json_step2)
request.raise_for_status()
r_json = request.json()

# STEP3: WE USE THE ENDPOINT TO GET THE UPLOT LINK
# STEP2: WE UPLOAD THE CIRCUIT DATA
n_classical_reg = info['nq']
# hack: easier to restrict labels to measured qubits
n_qubits = n_classical_reg # self.backends[device]['nq']
Expand All @@ -194,7 +185,7 @@ def _run(self, info, device):
data += ('"parameter_binds": [], "memory_slots": '
+ str(n_classical_reg))
data += (', "n_qubits": ' + str(n_qubits)
+ '}, "schema_version": "1.1.0", ')
+ '}, "schema_version": "1.2.0", ')
data += '"type": "QASM", "experiments": [{"config": '
data += '{"n_qubits": ' + str(n_qubits) + ', '
data += '"memory_slots": ' + str(n_classical_reg) + '}, '
Expand All @@ -205,31 +196,31 @@ def _run(self, info, device):
data += '"clbit_labels": ' + str(c_label).replace('\'', '\"') + ', '
data += '"memory_slots": ' + str(n_classical_reg) + ', '
data += '"creg_sizes": [["c", ' + str(n_classical_reg) + ']], '
data += ('"name": "circuit0"}, "instructions": ' + instruction_str
data += ('"name": "circuit0", "global_phase": 0}, "instructions": ' + instruction_str
+ '}]}')

json_step3 = {
json_step2 = {
'data': data,
'params': {
'access_token': None
},
'timeout': (5.0, None)
}
request = super(IBMQ, self).put(r_json['url'], **json_step3)
request = super(IBMQ, self).put(upload_url, **json_step2)
request.raise_for_status()

# STEP4: CONFIRM UPLOAD
json_step4 = {
# STEP3: CONFIRM UPLOAD
json_step3 = {
'data': None,
'json': None,
'timeout': (self.timeout, None)
}
upload_data_url = upload_endpoint_url.replace('jobUploadUrl',
'jobDataUploaded')
request = super(IBMQ, self).post(upload_data_url, **json_step4)

upload_data_url = urljoin(_API_URL,
'Network/ibm-q/Groups/open/Projects/main/Jobs/'+str(execution_id)
+'/jobDataUploaded')
request = super(IBMQ, self).post(upload_data_url, **json_step3)
request.raise_for_status()
r_json = request.json()
execution_id = upload_endpoint_url.split('/')[-2]

return execution_id

Expand Down