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https://github.com/open-policy-agent/opa.git
synced 2026-08-18 06:21:35 -06:00
Matthew Mussomele
ca783539f8
Sometimes compiling large policies with many errors causes more output errors than is easily sorted through. The compiler has been updated to cancel after a configurable number of errors (default no limit), and the server, repl and check command support options for setting that limit.
43 lines
1.0 KiB
Go
43 lines
1.0 KiB
Go
// Copyright 2016 The OPA Authors. All rights reserved.
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// Use of this source code is governed by an Apache2
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// license that can be found in the LICENSE file.
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package repl_test
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import (
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"bytes"
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"context"
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"fmt"
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"github.com/open-policy-agent/opa/repl"
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"github.com/open-policy-agent/opa/storage/inmem"
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)
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func ExampleREPL_OneShot() {
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// Initialize context for the example. Normally the caller would obtain the
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// context from an input parameter or instantiate their own.
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ctx := context.Background()
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// Instantiate the policy engine's storage layer.
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store := inmem.New()
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// Create a buffer that will receive REPL output.
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var buf bytes.Buffer
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// Create a new REPL.
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repl := repl.New(store, "", &buf, "json", 0, "")
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// Define a rule inside the REPL.
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repl.OneShot(ctx, "p { a = [1, 2, 3, 4]; a[_] > 3 }")
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// Query the rule defined above.
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repl.OneShot(ctx, "p")
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// Inspect the output. Defining rules does not produce output so we only expect
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// output from the second line of input.
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fmt.Println(buf.String())
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// Output:
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// true
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}
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