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Add env.get to Function node

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Nick O'Leary 2018-08-30 22:42:30 +01:00
parent c0e7d6d826
commit 0c5a76b391
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3 changed files with 40 additions and 1 deletions
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4
nodes/core/core/80-function.html
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@ -53,12 +53,14 @@
<p>The Catch node can also be used to handle errors. To invoke a Catch node,
pass <code>msg</code> as a second argument to <code>node.error</code>:</p>
<pre>node.error("Error",msg);</pre>
<h4>Referring Node Information</h4>
<h4>Accessing Node Information</h4>
<p>In the function block, id and name of the node can be referenced using the following properties:</p>
<ul>
<li><code>node.id</code> - id of the node</li>
<li><code>node.name</code> - name of the node</li>
</ul>
<h4>Using environment variables</h4>
<p>Environment variables can be accessed using <code>env.get("MY_ENV_VAR")</code>.</p>
</script>
<script type="text/javascript">

7
nodes/core/core/80-function.js
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@ -156,6 +156,13 @@ module.exports = function(RED) {
return node.context().global.keys.apply(node,arguments);
}
},
env: {
get: function(envVar) {
// For now, just return the env var. This will eventually
// also return project settings and subflow instance properties
return process.env[envVar]
}
},
setTimeout: function () {
var func = arguments[0];
var timerId;

30
test/nodes/core/core/80-function_spec.js
View File

@ -1249,6 +1249,36 @@ describe('function node', function() {
});
});
it('should allow accessing env vars', function(done) {
var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload = env.get('_TEST_FOO_'); return msg;"},
{id:"n2", type:"helper"}];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var count = 0;
delete process.env._TEST_FOO_;
n2.on("input", function(msg) {
try {
if (count === 0) {
msg.should.have.property('payload', undefined);
process.env._TEST_FOO_ = "hello";
count++;
n1.receive({payload:"foo",topic: "bar"});
} else {
msg.should.have.property('payload', "hello");
done();
}
} catch(err) {
done(err);
} finally {
delete process.env._TEST_FOO_;
}
});
n1.receive({payload:"foo",topic: "bar"});
});
});
describe('Logger', function () {
it('should log an Info Message', function (done) {
var flow = [{id: "n1", type: "function", wires: [["n2"]], func: "node.log('test');"}];