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https://github.com/bojand/gcall

Simple gRPC command line interface
https://github.com/bojand/gcall

grpc

Last synced: about 2 months ago
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Simple gRPC command line interface

Host: GitHub
URL: https://github.com/bojand/gcall
Owner: bojand
License: apache-2.0
Created: 2017-01-10T03:24:43.000Z (over 7 years ago)
Default Branch: master
Last Pushed: 2018-09-09T23:01:46.000Z (about 6 years ago)
Last Synced: 2024-06-29T19:21:45.154Z (3 months ago)
Topics: grpc
Language: JavaScript
Size: 78.1 KB
Stars: 12
Watchers: 3
Forks: 1
Open Issues: 1
Metadata Files:
- Readme: README.md
- License: LICENSE

Awesome Lists containing this project

awesome-grpc - gcall - Simple Node.js gRPC command line interface (Tools / CLI)

README

# gcall

Simple gRPC command-line interface

[![npm version](https://img.shields.io/npm/v/gcall.svg?style=flat-square)](https://www.npmjs.com/package/gcall)
[![build status](https://img.shields.io/travis/bojand/gcall/master.svg?style=flat-square)](https://travis-ci.org/bojand/gcall)

## Installation

```
$ npm install -g gcall
```

## Usage

```
Usage: gcall [options] [rpc]

Options:

-h, --help output usage information
-V, --version output the version number
-p, --proto Path to protocol buffer definition.
-h, --host The service host.
-d, --data Input data, otherwise standard input.
-o, --output Output path, otherwise standard output.
-m, --metadata Metadata value.
-s, --secure Use secure options.
-S, --service Service name. Default is the 0th found in definition.
-j, --json [jsonpath] Input is JSON. JSONPath for parsing. Default: '*'. Set to empty to turn off JSON parsing.
-b, --breaker [characters] Separator character(s) for JSON stream response. If flag set, but no separator is defined, default newline is used as separator.
-a, --array Output response stream as an array. Default: false.
-r, --rpc RPC to call.
-c, --config YAML or JSON config file with all the options.
-C, --color Color output. Useful for terminal output.
-P, --pretty Pretty print output.
-R, --raw Raw output. Do not try to JSON stringify or do anything.
-E, --encoding [encoding] Encoding for raw mode file output. Default: utf8.
-X, --silent Silent. Do not output anything. Just do the call.
```

## Features

* Works with all call types
* Takes input from standard input allowing for piping or using `-d` data CLI argument
* Metadata options
* Config file option
* Various output formatting options

## Examples

### Basic

List all available RPC's in a service

```sh
$ gcall -p ./protos/route_guide.proto
› GetFeature (Point) returns (Feature)
› ListFeatures (Rectangle) returns (stream Feature)
› RecordRoute (stream Point) returns (RouteSummary)
› RouteChat (stream RouteNote) returns (stream RouteNote)
```

### Request / Response

Simple request / response caller

```sh
$ gcall \
-p ./protos/route_guide.proto \
-d "{\"latitude\":409146138,\"longitude\":-746188906}" \
-h 0.0.0.0:50051 \
GetFeature
{"name":"Berkshire Valley Management Area Trail, Jefferson, NJ, USA","location":{"latitude":409146138,"longitude":-746188906}}
```

Output data to a file

```sh
$ gcall \
-p ./protos/route_guide.proto \
-d "{\"latitude\":409146138,\"longitude\":-746188906}" \
-h 0.0.0.0:50051 \
-o ./feature.json \
GetFeature
```

Input by piping

```sh
cat ./data.json | gcall \
-p ./protos/route_guide.proto \
-h 0.0.0.0:50051 \
GetFeature
```

Add metadata using `-m` option

```sh
$ gcall \
-p ./protos/route_guide.proto \
-m "{\"Authorization\": \"Bearer 1234\"}" \
-d "{\"latitude\":409146138,\"longitude\":-746188906}" \
-h 0.0.0.0:50051 \
GetFeature
```

Pretty print with `-P` option:

```sh
$ gcall \
-p ./protos/route_guide.proto \
-d "{\"latitude\":409146138,\"longitude\":-746188906}" \
-h 0.0.0.0:50051 \
-P \
GetFeature
{
"name": "Berkshire Valley Management Area Trail, Jefferson, NJ, USA",
"location": {
"latitude": 409146138,
"longitude": -746188906
}
}
```

Inspect using colors with `-C` option:

```sh
$ gcall \
-p ./protos/route_guide.proto \
-d "{\"latitude\":409146138,\"longitude\":-746188906}" \
-h 0.0.0.0:50051 \
-C \
GetFeature
{ name: 'Berkshire Valley Management Area Trail, Jefferson, NJ, USA',
location: { latitude: 409146138, longitude: -746188906 } }
```

### Request stream

`-j` flag can be used to specify [JSONPath](http://goessner.net/articles/JsonPath/)
for JSON parsing. Default is `'*'` and normally it wouldn't be needed, depending on the
input data structure.

Input redirection can be used for input as well.

```sh
$ gcall.js \
-p ./protos/route_guide.proto \
-h 0.0.0.0:50051 \
-j *.location \
RecordRoute < ./feature_guide_db.json
{"point_count":100,"feature_count":64,"distance":7494392,"elapsed_time":0}
```

We can pipe

```sh
curl -s https://raw.githubusercontent.com/bojand/gcall/master/test/data/feature_guide_db.json | gcall.js \
-p ./protos/route_guide.proto \
-h 0.0.0.0:50051 \
-j *.location \
-P \
RecordRoute
{
"point_count": 100,
"feature_count": 64,
"distance": 7494392,
"elapsed_time": 4
}
```

### Response stream

```sh
$ gcall.js \
-p ./protos/route_guide.proto \
-d "{\"lo\":{\"latitude\":400000000,\"longitude\":-750000000},\"hi\":{\"latitude\":405000000,\"longitude\":-742000000}}" \
-h 0.0.0.0:50051 \
ListFeatures
{"name":"3 Drake Lane, Pennington, NJ 08534, USA","location":{"latitude":402948455,"longitude":-747903913}},{"name":"330 Evelyn Avenue, Hamilton Township, NJ 08619, USA","location":{"latitude":402647019,"longitude":-747071791}},{"name":"1300 Airport Road, North Brunswick Township, NJ 08902, USA","location":{"latitude":404663628,"longitude":-744820157}},{"name":"1007 Jersey Avenue, New Brunswick, NJ 08901, USA","location":{"latitude":404701380,"longitude":-744781745}},{"name":"517-521 Huntington Drive, Manchester Township, NJ 08759, USA","location":{"latitude":400106455,"longitude":-742870190}},{"name":"1-17 Bergen Court, New Brunswick, NJ 08901, USA","location":{"latitude":404839914,"longitude":-744759616}}
```

We can pretty print as an array using `-a` and `-P` options:

```sh
$ gcall.js \
-p ./protos/route_guide.proto \
-d "{\"lo\":{\"latitude\":400000000,\"longitude\":-750000000},\"hi\":{\"latitude\":405000000,\"longitude\":-742000000}}" \
-h 0.0.0.0:50051 \
-a \
-P \
ListFeatures
[
{
"name": "3 Drake Lane, Pennington, NJ 08534, USA",
"location": {
"latitude": 402948455,
"longitude": -747903913
}
},
{
"name": "330 Evelyn Avenue, Hamilton Township, NJ 08619, USA",
"location": {
"latitude": 402647019,
"longitude": -747071791
}
},
{
"name": "1300 Airport Road, North Brunswick Township, NJ 08902, USA",
"location": {
"latitude": 404663628,
"longitude": -744820157
}
},
{
"name": "1007 Jersey Avenue, New Brunswick, NJ 08901, USA",
"location": {
"latitude": 404701380,
"longitude": -744781745
}
},
{
"name": "517-521 Huntington Drive, Manchester Township, NJ 08759, USA",
"location": {
"latitude": 400106455,
"longitude": -742870190
}
},
{
"name": "1-17 Bergen Court, New Brunswick, NJ 08901, USA",
"location": {
"latitude": 404839914,
"longitude": -744759616
}
}
]
```

Or we can do a custom separator using `-b`. If separator is not provided, newline
is used by default

```sh
$ gcall.js \
-p ./protos/route_guide.proto \
-d "{\"lo\":{\"latitude\":400000000,\"longitude\":-750000000},\"hi\":{\"latitude\":405000000,\"longitude\":-742000000}}" \
-b \
-h 0.0.0.0:50051 \
ListFeatures
{"name":"3 Drake Lane, Pennington, NJ 08534, USA","location":{"latitude":402948455,"longitude":-747903913}}
{"name":"330 Evelyn Avenue, Hamilton Township, NJ 08619, USA","location":{"latitude":402647019,"longitude":-747071791}}
{"name":"1300 Airport Road, North Brunswick Township, NJ 08902, USA","location":{"latitude":404663628,"longitude":-744820157}}
{"name":"1007 Jersey Avenue, New Brunswick, NJ 08901, USA","location":{"latitude":404701380,"longitude":-744781745}}
{"name":"517-521 Huntington Drive, Manchester Township, NJ 08759, USA","location":{"latitude":400106455,"longitude":-742870190}}
{"name":"1-17 Bergen Court, New Brunswick, NJ 08901, USA","location":{"latitude":404839914,"longitude":-744759616}}
```

Or with combination of `-b` and `-a`

```sh
$ gcall.js \
-p ./protos/route_guide.proto \
-d "{\"lo\":{\"latitude\":400000000,\"longitude\":-750000000},\"hi\":{\"latitude\":405000000,\"longitude\":-742000000}}" \
-b \
-a \
-h 0.0.0.0:50051 \
ListFeatures
{"name":"3 Drake Lane, Pennington, NJ 08534, USA","location":{"latitude":402948455,"longitude":-747903913}}
,
{"name":"330 Evelyn Avenue, Hamilton Township, NJ 08619, USA","location":{"latitude":402647019,"longitude":-747071791}}
,
{"name":"1300 Airport Road, North Brunswick Township, NJ 08902, USA","location":{"latitude":404663628,"longitude":-744820157}}
,
{"name":"1007 Jersey Avenue, New Brunswick, NJ 08901, USA","location":{"latitude":404701380,"longitude":-744781745}}
,
{"name":"517-521 Huntington Drive, Manchester Township, NJ 08759, USA","location":{"latitude":400106455,"longitude":-742870190}}
,
{"name":"1-17 Bergen Court, New Brunswick, NJ 08901, USA","location":{"latitude":404839914,"longitude":-744759616}}]
```

Or just a custom separator

```sh
$ gcall.js \
-p ./protos/route_guide.proto \
-d "{\"lo\":{\"latitude\":400000000,\"longitude\":-750000000},\"hi\":{\"latitude\":405000000,\"longitude\":-742000000}}" \
-b " | " \
-h 0.0.0.0:50051 \
ListFeatures
{"name":"3 Drake Lane, Pennington, NJ 08534, USA","location":{"latitude":402948455,"longitude":-747903913}} | {"name":"330 Evelyn Avenue, Hamilton Township, NJ 08619, USA","location":{"latitude":402647019,"longitude":-747071791}} | {"name":"1300 Airport Road, North Brunswick Township, NJ 08902, USA","location":{"latitude":404663628,"longitude":-744820157}} | {"name":"1007 Jersey Avenue, New Brunswick, NJ 08901, USA","location":{"latitude":404701380,"longitude":-744781745}} | {"name":"517-521 Huntington Drive, Manchester Township, NJ 08759, USA","location":{"latitude":400106455,"longitude":-742870190}} | {"name":"1-17 Bergen Court, New Brunswick, NJ 08901, USA","location":{"latitude":404839914,"longitude":-744759616}}
```

### Duplex

```sh
./gcall.js \
-p ./protos/route_guide.proto \
-h 0.0.0.0:50051 \
RouteChat < ./notes.json
{"location":{"latitude":0,"longitude":0},"message":"First message"}
```

```sh
./gcall.js \
-p ./protos/route_guide.proto \
-h 0.0.0.0:50051 \
-a \
-P \
RouteChat < ./notes.json
[
{
"location": {
"latitude": 0,
"longitude": 0
},
"message": "First message"
},
{
"location": {
"latitude": 0,
"longitude": 0
},
"message": "Fourth message"
},
{
"location": {
"latitude": 0,
"longitude": 1
},
"message": "Second message"
},
{
"location": {
"latitude": 1,
"longitude": 0
},
"message": "Third message"
}
]
```

### Config

We can run `gcall` using a config file in either JSON or YAML format.
Note that you can combine config file and command line options.
Command line options will overwrite any existing config file options.

**config.json**

```json
{
"proto": "/protos/route_guide.proto",
"data": {
"latitude": 409146138,
"longitude": -746188906
},
"host": "0.0.0.0:50051",
"pretty": true,
"rpc": "GetFeature"
}
```

```sh
$ gcall -c config.json
{
"name": "Berkshire Valley Management Area Trail, Jefferson, NJ, USA",
"location": {
"latitude": 409146138,
"longitude": -746188906
}
}
```

## License

Apache-2.0