Add Parameter File Option to run cloud CLI command

CHANGELOG.md

@@ -15,6 +15,7 @@ These changes are available in the [master branch](https://github.com/PrefectHQ/
 - Replace `DotDict` with `box.Box` - [#1518](https://github.com/PrefectHQ/prefect/pull/1518)
 - Store `cached_inputs` on Failed states and call their result handlers if they were provided - [#1557](https://github.com/PrefectHQ/prefect/pull/1557)
 - `raise_on_exception` no longer raises for Prefect Signals, as these are typically intentional / for control flow - [#1562](https://github.com/PrefectHQ/prefect/pull/1562)
+- `run cloud` CLI command takes in optional `--parameters` as a file path pointing to a JSON file - [#1582](https://github.com/PrefectHQ/prefect/pull/1582)
 - Always consider `Constant` tasks successful and unpack them immediately instead of submitting them for execution - [#1527](https://github.com/PrefectHQ/prefect/issues/1527)
 
 ### Task Library

src/prefect/cli/run.py

@@ -1,3 +1,4 @@
+import json
 import time
 
 import click
@@ -45,6 +46,12 @@ def run():
     hidden=True,
 )
 @click.option("--version", "-v", type=int, help="A flow version to run.", hidden=True)
+@click.option(
+    "--parameters",
+    help="A parameters JSON file.",
+    hidden=True,
+    type=click.Path(exists=True),
+)
 @click.option(
     "--watch",
     "-w",
@@ -55,17 +62,18 @@ def run():
 @click.option(
     "--logs", "-l", is_flag=True, help="Live logs of the flow run.", hidden=True
 )
-def cloud(name, project, version, watch, logs):
+def cloud(name, project, version, parameters, watch, logs):
     """
     Run a deployed flow in Prefect Cloud.
 
     \b
     Options:
-        --name, -n      TEXT    The name of a flow to run                                       [required]
-        --project, -p   TEXT    The name of a project that contains the flow                    [required]
-        --version, -v   INTEGER A flow version to run
-        --watch, -w             Watch current state of the flow run, stream output to stdout
-        --logs, -l              Get logs of the flow run, stream output to stdout
+        --name, -n      TEXT        The name of a flow to run                                       [required]
+        --project, -p   TEXT        The name of a project that contains the flow                    [required]
+        --version, -v   INTEGER     A flow version to run
+        --parameters    FILE PATH   A filepath of a JSON file containing parameters
+        --watch, -w                 Watch current state of the flow run, stream output to stdout
+        --logs, -l                  Get logs of the flow run, stream output to stdout
     """
 
     if watch and logs:
@@ -107,7 +115,11 @@ def cloud(name, project, version, watch, logs):
         click.secho("{} not found".format(name), fg="red")
         return
 
-    flow_run_id = client.create_flow_run(flow_id=flow_id)
+    loaded_params = None
+    if parameters:
+        loaded_params = json.load(open(parameters))
+
+    flow_run_id = client.create_flow_run(flow_id=flow_id, parameters=loaded_params)
     click.echo("Flow Run ID: {}".format(flow_run_id))
 
     if watch:

tests/cli/test_run.py

@@ -1,4 +1,7 @@
+import json
+import os
 import sys
+import tempfile
 from unittest.mock import MagicMock
 
 import click
@@ -38,7 +41,7 @@ def test_run_cloud(monkeypatch):
     session.return_value.post = post
     monkeypatch.setattr("requests.Session", session)
 
-    create_flow_run = MagicMock(resurn_value="id")
+    create_flow_run = MagicMock(return_value="id")
     monkeypatch.setattr(
         "prefect.client.Client.create_flow_run", MagicMock(return_value=create_flow_run)
     )
@@ -65,9 +68,6 @@ def test_run_cloud(monkeypatch):
         assert post.call_args[1]["json"]["query"].split() == query.split()
 
 
-@pytest.mark.skipif(
-    sys.version_info < (3, 6), reason="3.5 does not preserve dictionary order"
-)
 def test_run_cloud_watch(monkeypatch):
     post = MagicMock(
         return_value=MagicMock(
@@ -90,7 +90,7 @@ def test_run_cloud_watch(monkeypatch):
     session.return_value.post = post
     monkeypatch.setattr("requests.Session", session)
 
-    create_flow_run = MagicMock(resurn_value="id")
+    create_flow_run = MagicMock(return_value="id")
     monkeypatch.setattr(
         "prefect.client.Client.create_flow_run", MagicMock(return_value=create_flow_run)
     )
@@ -118,9 +118,6 @@ def test_run_cloud_watch(monkeypatch):
         assert post.called
 
 
-@pytest.mark.skipif(
-    sys.version_info < (3, 6), reason="3.5 does not preserve dictionary order"
-)
 def test_run_cloud_logs(monkeypatch):
     post = MagicMock(
         return_value=MagicMock(
@@ -149,7 +146,7 @@ def test_run_cloud_logs(monkeypatch):
     session.return_value.post = post
     monkeypatch.setattr("requests.Session", session)
 
-    create_flow_run = MagicMock(resurn_value="id")
+    create_flow_run = MagicMock(return_value="id")
     monkeypatch.setattr(
         "prefect.client.Client.create_flow_run", MagicMock(return_value=create_flow_run)
     )
@@ -195,3 +192,74 @@ def test_run_cloud_fails(monkeypatch):
         )
         assert result.exit_code == 0
         assert "flow not found" in result.output
+
+
+def test_run_cloud_no_param_file(monkeypatch):
+    with set_temporary_config(
+        {"cloud.graphql": "http://my-cloud.foo", "cloud.auth_token": "secret_token"}
+    ):
+        runner = CliRunner()
+        result = runner.invoke(
+            run,
+            [
+                "cloud",
+                "--name",
+                "flow",
+                "--project",
+                "project",
+                "--version",
+                "2",
+                "--parameters",
+                "no_file.json",
+            ],
+        )
+        assert result.exit_code == 2
+        assert (
+            'Invalid value for "--parameters": Path "no_file.json" does not exist.'
+            in result.output
+        )
+
+
+def test_run_cloud_param_file(monkeypatch):
+    post = MagicMock(
+        return_value=MagicMock(
+            json=MagicMock(return_value=dict(data=dict(flow=[{"id": "flow"}])))
+        )
+    )
+    session = MagicMock()
+    session.return_value.post = post
+    monkeypatch.setattr("requests.Session", session)
+
+    mock_client = MagicMock()
+    mock_client.create_flow_run.return_value = "id"
+    monkeypatch.setattr("prefect.cli.run.Client", MagicMock(return_value=mock_client))
+
+    with tempfile.TemporaryDirectory() as directory:
+        file_path = os.path.join(directory, "file.json")
+        with open(file_path, "w") as tmp:
+            json.dump({"test": 42}, tmp)
+
+        with set_temporary_config(
+            {"cloud.graphql": "http://my-cloud.foo", "cloud.auth_token": "secret_token"}
+        ):
+            runner = CliRunner()
+            result = runner.invoke(
+                run,
+                [
+                    "cloud",
+                    "--name",
+                    "flow",
+                    "--project",
+                    "project",
+                    "--version",
+                    "2",
+                    "--parameters",
+                    file_path,
+                ],
+            )
+            assert result.exit_code == 0
+            assert "Flow Run ID" in result.output
+            assert mock_client.create_flow_run.called
+            assert mock_client.create_flow_run.call_args[1]["parameters"] == {
+                "test": 42
+            }