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adapters.jl
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adapters.jl
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# REST API adapters
# the adapters returns the raw JSON in Dict{String, Any}
export AuthAPI, ServiceAPI, ProjectAPI, JobAPI
abstract type AbstractAPI end
endpoint(api::AbstractAPI) = api.endpoint
api_layers(::AbstractAPI; kw...) = HTTP.stack(;kw...)
function api_uri(api::AbstractAPI, path::String, query=nothing)
uri = endpoint(api)::URI
# NOTE: this directly set the query to query
if query === nothing
return joinpath(uri, path)
else
isempty(uri.query) || error("non empty query in API endpoint is not supported")
return URI(joinpath(uri, path); query=query)
end
end
function to_json(response)
body = HTTP.payload(response, String)
return JSON.parse(body)
end
"abstract REST API type for IBM Q"
abstract type IBMQAPI <: AbstractAPI end
"""
create_headers(api::IBMQAPI[, headers=HTTP.Header[]; kw...])
Create headers for a IBMQ REST API object.
"""
function create_headers(::IBMQAPI, headers=HTTP.Header[]; kw...)
headers = HTTP.mkheaders(headers)
# insert headers
# TODO: use version
HTTP.setkv(headers, "X-Qx-Client-Application", "IBMQClient.jl")
HTTP.setkv(headers, "Connection", "keep-alive")
HTTP.setkv(headers, "Accept", "*/*")
access_token = Base.get(kw, :access_token, nothing)
if access_token === nothing
HTTP.rmkv(headers, "X-Access-Token")
else
HTTP.setkv(headers, "X-Access-Token", access_token)
end
return headers
end
function request(api::IBMQAPI, method::String, path::String, body=HTTP.nobody; headers=HTTP.Header[], query=nothing, kw...)
headers = create_headers(api, headers; kw...)
if body === nothing
body = HTTP.nobody
elseif body isa Dict
# we convert Julia Dict to JSON in IBMQ REST API
HTTP.setkv(headers, "Content-Type", "application/json")
if body isa Dict
body = JSON.json(body)
end
elseif body isa Vector{UInt8}
elseif body isa AbstractString
else
error("invalid content type: $(typeof(body))")
end
uri = api_uri(api, path, query)
layers = api_layers(api; kw...)
response = HTTP.request(layers, method, uri, HTTP.mkheaders(headers), body; kw...)
return to_json(response)
end
function get(api::AbstractAPI, path::String, body=HTTP.nobody; kw...)
request(api, "GET", path, body; kw...)
end
post(api::AbstractAPI, path::String, body=HTTP.nobody; kw...) = request(api, "POST", path, body; kw...)
put(api::AbstractAPI, path::String, body=HTTP.nobody; kw...) = request(api, "PUT", path, body; kw...)
patch(api::AbstractAPI, path::String, body=HTTP.nobody; kw...) = request(api, "PATCH", path, body; kw...)
head(api::AbstractAPI, path::String, body=HTTP.nobody; kw...) = request(api, "HEAD", path, body; kw...)
"""
AuthAPI <: IBMQAPI
IBM Q Authentication REST API.
"""
Base.@kwdef struct AuthAPI <: IBMQAPI
endpoint::URI = URI("https://auth.quantum-computing.ibm.com/api")
end
"""
login(::AuthAPI, token::String)
Login with user token.
"""
function login(api::AuthAPI, token::String)
return post(api, "users/loginWithToken", Dict("apiToken" => token))
end
"""
user_info(::AuthAPI, access_token::String)
Get user info of given IBM Q account access token.
"""
function user_info(api::AuthAPI, access_token::String)
return get(api, "users/me"; access_token=access_token)
end
"""
user_urls(::AuthAPI, access_token::String)
Get user urls to create services etc.
"""
function user_urls(api::AuthAPI, access_token::String)
return user_info(api, access_token)["urls"]
end
"""
ServiceAPI <: IBMQAPI
IBM Q service REST API.
"""
struct ServiceAPI <: IBMQAPI
endpoint::URI
end
"""
ServiceAPI([uri="https://api.quantum-computing.ibm.com/api"])
Create IBM Q service REST API object.
"""
ServiceAPI() = ServiceAPI("https://api.quantum-computing.ibm.com/api")
ServiceAPI(uri::String) = ServiceAPI(URI(uri))
"""
ServiceAPI(::AuthAPI, access_token::String)
Create IBM Q service REST API by querying authentication server.
"""
function ServiceAPI(auth::AuthAPI, access_token::String)
return ServiceAPI(URI(user_urls(auth, access_token)["http"]))
end
"""
hubs(api::ServiceAPI, access_token::String)
Get alll IBM hubs.
"""
function hubs(api::ServiceAPI, access_token::String)
return get(api, "Network"; access_token=access_token)
end
"""
user_hubs(api::ServiceAPI, access_token::String)
Get given users' hubs.
"""
function user_hubs(api::ServiceAPI, access_token::String)
ret_hubs = Dict{String, String}[]
for hub in hubs(api, access_token)
hub_name = hub["name"]
for (group_name, group) in hub["groups"], (project_name, project) in group["projects"]
entry = Dict(
"hub" => hub_name,
"group" => group_name,
"project" => project_name
)
if Base.get(project, "isDefault", false)
insert!(ret_hubs, 1, entry)
else
push!(ret_hubs, entry)
end
end
end
return ret_hubs
end
# this is similar to Account class in qiskit
"""
ProjectAPI <: IBMQAPI
IBM Q Project REST API.
"""
struct ProjectAPI <: IBMQAPI
endpoint::URI
end
"""
ProjectAPI(base, hub::String, group::String, project::String)
Create IBM Q Project REST API from given base uri, `hub`, `group` and project name `project`.
"""
function ProjectAPI(base::URI, hub::String, group::String, project::String)
return ProjectAPI(base.uri, hub, group, project)
end
function ProjectAPI(base::String, hub::String, group::String, project::String)
return ProjectAPI(URI(base * ibmq_template_hubs(hub, group, project)))
end
function ibmq_template_hubs(hub::String, group::String, project::String)
return "/Network/$hub/Groups/$group/Projects/$project"
end
"""
devices(api::ProjectAPI, access_token::String; timeout = 0)
Query available devices.
"""
function devices(api::ProjectAPI, access_token::String; timeout = 0)
return get(api, "devices/v/1"; readtimeout = timeout, access_token = access_token)
end
"""
jobs(api::ProjectAPI, access_token::String; descending::Bool=true, limit::Int=10, skip::Int=0, extra_filter=nothing)
Query available jobs.
## Args
- `limit`: Maximum number of items to return.
- `skip`: Offset for the items to return.
- `descending`: Whether the jobs should be in descending order.
- `extra_filter`: Additional filtering passed to the query.
"""
function jobs(api::ProjectAPI, access_token::String; descending::Bool=true, limit::Int=10, skip::Int=0, extra_filter=nothing)
order = descending ? "DESC" : "ASC"
query = Dict{String, Any}(
"order" => "creationDate " * order,
"limit" => limit,
"skip" => skip,
)
if !isnothing(extra_filter)
query["where"] = extra_filter
end
get(api, "Jobs/status/v/1"; access_token=access_token, query=Dict("filter" => JSON.json(query)))
end
"""
create_remote_job(api::ProjectAPI, device::IBMQDevice, access_token::String; job_name=nothing, job_share_level=nothing, job_tags=nothing)
Create a job instance on the remote server.
## Args
- `device_name`: A IBM Q device name.
- `job_name`: Custom name to be assigned to the job.
- `job_share_level`: Level the job should be shared at.
- `job_tags`: Tags to be assigned to the job.
"""
function create_remote_job(api::ProjectAPI, device_name::String, access_token::String; job_name=nothing, job_share_level=nothing, job_tags=nothing)
payload = Dict{String, Any}(
"backend" => Dict{String, Any}(
"name" => device_name,
),
"allowObjectStorage" => true,
)
if !isnothing(job_name)
payload["name"] = job_name
end
if !isnothing(job_share_level)
payload["shareLevel"] = job_share_level
end
if !isnothing(job_tags)
payload["tags"] = job_tags
end
return post(api, "Jobs", payload; access_token=access_token)
end
struct JobAPI <: IBMQAPI
endpoint::URI
end
function JobAPI(api::ProjectAPI, job_id::String)
JobAPI(joinpath(api.endpoint, "Jobs/$job_id"))
end
function upload_url(api::JobAPI, access_token::String)
get(api, "jobUploadUrl"; access_token=access_token)
end
function retreive_job_info(api::JobAPI, access_token::String)
get(api, "v/1"; access_token=access_token)
end
function cancel(api::JobAPI, access_token::String)
post(api, "cancel"; access_token=access_token)
end
function properties(api::JobAPI, access_token::String)
get(api, "properties"; access_token=access_token)
end
function result_url(api::JobAPI, access_token::String)
get(api, "resultDownloadUrl"; access_token=access_token)
end
function download_url(api::JobAPI, access_token::String)
get(api, "jobDownloadUrl"; access_token=access_token)
end
function status(api::JobAPI, access_token::String)
get(api, "status/v/1"; access_token=access_token)
end
function put_object_storage(api::JobAPI, url::String, qobj::Schema.Qobj, access_token::String)
put_object_storage(api, url, to_dict(qobj; include_defaults=true, exclude_nothing=true), access_token)
end
function put_object_storage(api::JobAPI, url::String, qobj::AbstractDict{String, Any}, access_token::String)
put_object_storage(api, url, JSON.json(qobj), access_token)
end
function put_object_storage(api::JobAPI, url::String, qobj::String, access_token::String)
HTTP.put(url, create_headers(api; access_token=access_token), qobj; readtimeout=600)
end
function get_object_storage(api::JobAPI, url::String, access_token::String)
response = HTTP.get(url, create_headers(api; access_token=access_token); readtimeout=600)
return to_json(response)
end
function callback_upload(api::JobAPI, access_token::String)
post(api, "jobDataUploaded"; access_token=access_token)
end
function callback_download(api::JobAPI, access_token::String)
post(api, "resultDownloaded"; access_token=access_token)
end