databuild/examples/basic_graph/README.md

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# Basic Graph - Random Number Generator
This example demonstrates a databuild_job that generates a random number seeded based on the partition ref.
## Multiple Configs
We can generate numbers for any partition provided (written to `/tmp/databuild_test/examples/basic_graph`), and so we have
a config per partition for demonstration purposes:
```bash
$ bazel run //:generate_number_job.cfg pippin salem sadie
{"outputs":["pippin"],"inputs":[],"args":["pippin"],"env":{}}
{"outputs":["salem"],"inputs":[],"args":["salem"],"env":{}}
{"outputs":["sadie"],"inputs":[],"args":["sadie"],"env":{}}
```
## Execute
Generates a random number based on the hash of the partition ref and writes it to the output file.
```bash
bazel run //:sum_job.cfg pippin_salem_sadie | bazel run //:sum_job
```