update readme with some helpful examples instead of a giant wall of text.

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# nostr army knife
# nak, the nostr army knife
this repository contains two things:
install with `go install github.com/fiatjaf/nak` or
[download a binary](https://github.com/fiatjaf/nak/releases).
## a command-line tool for decoding and encoding nostr entities and talking to relays
## what can you do with it?
Install with `go install github.com/fiatjaf/nak`.
take a look at the help text that comes in it to learn all possibilities, but here are some:
It pairs nicely with https://github.com/blakejakopovic/nostcat using unix pipes.
### examples
### make a nostr event signed with the default key (`01`)
```shell
~> nak event
{"id":"53443506e7d09e55b922a2369b80f926007a8a8a8ea5f09df1db59fe1993335e","pubkey":"79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","created_at":1698632644,"kind":1,"tags":[],"content":"hello from the nostr army knife","sig":"4bdb609c975b2b61338c2ff4c7ce91d4afe74bea4ed1601a62e1fd125bd4c0ae6e0166cca96e5cfb7e0f50583eb6a0dd0b66072566299b6007742db56278010c"}
```
~> nak decode nsec1aqc5q5l8da0l7u6gra4p5xhleclngezlpsgd7z5dx07cpu8sxf2shqgn6y
{
"pubkey": "5b36b874b2b983197ba4be80553b2e4b6db2895a04567cea0aa47585b2e0c620",
"private_key": "e8314053e76f5fff73481f6a1a1affce3f34645f0c10df0a8d33fd80f0f03255"
}
~> nak event -c hello --sec e8314053e76f5fff73481f6a1a1affce3f34645f0c10df0a8d33fd80f0f03255
{"id":"ed840ef37a40cce4f4b8c361e5df13457ad664209cf4a297fd7df7e84fdd32e0","pubkey":"5b36b874b2b983197ba4be80553b2e4b6db2895a04567cea0aa47585b2e0c620","created_at":1683201092,"kind":1,"tags":[],"content":"hello","sig":"304a87dbbdf986a187eb9417316cfe3d6f8f31793ba20c9c6d7e4ebeeefe950d6ecba6098c201b7170c04e27c2f920d607a90f5c8763c35ac806dce37df1d05d"}
~> nak event -c hello --sec e8314053e76f5fff73481f6a1a1affce3f34645f0c10df0a8d33fd80f0f03255 wss://relay.stoner.com wss://nos.lol wss://nostr.wine wss://atlas.nostr.land wss://relay.damus.io
{"id":"54a534647bdcd2751d743fea4fc9eee5dba613887d69425f0891d9c2f82772a5","pubkey":"5b36b874b2b983197ba4be80553b2e4b6db2895a04567cea0aa47585b2e0c620","created_at":1684895417,"kind":1,"tags":[],"content":"hello","sig":"81a14cfe628fab6cd6135bb66f6e8b3bb4bfce4f666462a1303fdfbc9038fd141e73db3fe7e774a8f023fc70622c50a67d4fa41d3d09806c78f051985c11e0bd"}
publishing to wss://relay.stoner.com... failed: msg: blocked: pubkey is not allowed to publish to this relay
publishing to wss://nos.lol... success.
publishing to wss://nostr.wine... failed: msg: blocked: not an active paid member
publishing to wss://atlas.nostr.land... failed: msg: blocked: pubkey not admitted
### make a nostr event with custom content and tags, sign it with a different key and publish it to two relays
```shell
~> nak event --sec 02 -c 'good morning' --tag t=gm wss://nostr-pub.wellorder.net wss://relay.damus.io
{"id":"e20978737ab7cd36eca300a65f11738176123f2e0c23054544b18fe493e2aa1a","pubkey":"c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5","created_at":1698632753,"kind":1,"tags":[["t","gm"]],"content":"good morning","sig":"5687c1a97066c349cb3bde0c0719fd1652a13403ba6aca7557b646307ee6718528cd86989db08bf6a7fd04bea0b0b87c1dd1b78c2d21b80b80eebab7f40b8916"}
publishing to wss://nostr-pub.wellorder.net... success.
publishing to wss://relay.damus.io... success.
```
~> nak decode nevent1qqs29yet5tp0qq5xu5qgkeehkzqh5qu46739axzezcxpj4tjlkx9j7gpr4mhxue69uhkummnw3ez6ur4vgh8wetvd3hhyer9wghxuet5sh59ud
### query a bunch of relays for a tag with a limit of 2 for each, print their content
```shell
~> nak req -k 1 -t t=gm -l 2 wss://nostr.mom wss://nostr.wine wss://nostr-pub.wellorder.net | jq .content
"#GM, you sovereign savage #freeple of the #nostrverse. Let's cause some #nostroversy. "
"ITM slaves!\n#gm https://image.nostr.build/cbbcdf80bfc302a6678ecf9387c87d87deca3e0e288a12e262926c34feb3f6aa.jpg "
"good morning"
"The problem is to start, but along the way it's fixed #GM ☀️"
"Activando modo zen…\n\n#GM #Nostr #Hispano"
```
### decode a nip19 note1 code, add a relay hint, encode it back to nevent1
```shell
~> nak decode note1ttnnrw78wy0hs5fa59yj03yvcu2r4y0xetg9vh7uf4em39n604vsyp37f2 | jq -r .id | nak encode nevent -r wss://nostr.zbd.gg
nevent1qqs94ee3h0rhz8mc2y76zjf8cjxvw9p6j8nv45zktlwy6uacjea86kgpzfmhxue69uhkummnw3ezu7nzvshxwec8zw8h7
~> nak decode nevent1qqs94ee3h0rhz8mc2y76zjf8cjxvw9p6j8nv45zktlwy6uacjea86kgpzfmhxue69uhkummnw3ezu7nzvshxwec8zw8h7
{
"id": "a2932ba2c2f00286e5008b6737b0817a0395d7a25e9859160c195572fd8c5979",
"id": "5ae731bbc7711f78513da14927c48cc7143a91e6cad0565fdc4d73b8967a7d59",
"relays": [
"wss://nostr-pub.wellorder.net"
"wss://nostr.zbd.gg"
]
}
~> nak req -a a2932ba2c2f00286e5008b6737b0817a0395d7a25e9859160c195572fd8c5979 -k 1 -a e8b487c079b0f67c695ae6c4c2552a47f38adfa2533cc5926bd2c102942fdcb7
["REQ","nak",{"kinds":[1],"authors":["a2932ba2c2f00286e5008b6737b0817a0395d7a25e9859160c195572fd8c5979","e8b487c079b0f67c695ae6c4c2552a47f38adfa2533cc5926bd2c102942fdcb7"]}]
~> nak req -k 1 -l 1 --stream wss://relay.stoner.com
{"id":"1d73832917bf5a72276c53e9246c28b97225b51cd5735843434f7756fc0ddead","pubkey":"3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d","created_at":1684894689,"kind":1,"tags":[["p","bcbeb5a2e6b547f6d0c3d8c16145f7bb94f3639ec7ecbcfe50045dbb2eede70b","wss://nos.lol","artk42"],["e","b5af6815c8d89a7d5b6201b9e624fbd5389fca3337ba2dc05c6187234a7c1bd5","wss://nos.lol","root"],["e","5795e27aff0a459a30c64a61a32c43d968cd19c8f1926cf01fc02e9da7c56f2b","wss://nos.lol","reply"],["client","coracle"]],"content":"Because that makes no sense.","sig":"3ee5b2b26ec6b116ef1a6b1c10bc7e56674a3c36841814f68b57f63259f3d78e23629d4599afe67e72c220e27b4b0966cc51adc1da808c8c6111dedb531ac0c3"}
```
### documentation
```
~> nak --help
NAME:
nak - the nostr army knife command-line tool
USAGE:
nak [global options] command [command options] [arguments...]
COMMANDS:
req generates encoded REQ messages and optionally use them to talk to relays
count generates encoded COUNT messages and optionally use them to talk to relays
event generates an encoded event and either prints it or sends it to a set of relays
decode decodes nip19, nip21, nip05 or hex entities
encode encodes notes and other stuff to nip19 entities
help, h Shows a list of commands or help for one command
GLOBAL OPTIONS:
--help, -h show help
~> nak event --help
NAME:
nak event - generates an encoded event and either prints it or sends it to a set of relays
USAGE:
nak event [command options] [arguments...]
DESCRIPTION:
example usage (for sending directly to a relay with 'nostcat'):
nak event -k 1 -c hello --envelope | nostcat wss://nos.lol
standalone:
nak event -k 1 -c hello wss://nos.lol`,
OPTIONS:
--envelope print the event enveloped in a ["EVENT", ...] message ready to be sent to a relay (default: false)
--sec value secret key to sign the event (default: the key '1')
EVENT FIELDS
--content value, -c value event content (default: hello from the nostr army knife)
--created-at value, --time value, --ts value unix timestamp value for the created_at field (default: now)
--kind value, -k value event kind (default: 1)
--tag value, -t value [ --tag value, -t value ] sets a tag field on the event, takes a value like -t e=<id>
-e value [ -e value ] shortcut for --tag e=<value>
-p value [ -p value ] shortcut for --tag p=<value>
~> nak req --help
NAME:
nak req - generates encoded REQ messages and optionally use them to talk to relays
USAGE:
nak req [command options] [relay...]
DESCRIPTION:
outputs a NIP-01 Nostr filter. when a relay is not given, will print the filter, otherwise will connect to the given relay and send the filter.
example usage (with 'nostcat'):
nak req -k 1 -a 3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d | nostcat wss://nos.lol
standalone:
nak req -k 1 wss://nos.lol
OPTIONS:
--bare when printing the filter, print just the filter, not enveloped in a ["REQ", ...] array (default: false)
--stream keep the subscription open, printing all events as they are returned (default: false, will close on EOSE)
FILTER ATTRIBUTES
--author value, -a value [ --author value, -a value ] only accept events from these authors (pubkey as hex)
--id value, -i value [ --id value, -i value ] only accept events with these ids (hex)
--kind value, -k value [ --kind value, -k value ] only accept events with these kind numbers
--limit value, -l value only accept up to this number of events (default: 0)
--since value, -s value only accept events newer than this (unix timestamp) (default: 0)
--tag value, -t value [ --tag value, -t value ] takes a tag like -t e=<id>, only accept events with these tags
--until value, -u value only accept events older than this (unix timestamp) (default: 0)
-e value [ -e value ] shortcut for --tag e=<value>
-p value [ -p value ] shortcut for --tag p=<value>
OPTIONS:
--bare when printing the filter, print just the filter, not enveloped in a ["REQ", ...] array (default: false)
--stream keep the subscription open, printing all events as they are returned (default: false, will close on EOSE)
FILTER ATTRIBUTES
--author value, -a value [ --author value, -a value ] only accept events from these authors (pubkey as hex)
--id value, -i value [ --id value, -i value ] only accept events with these ids (hex)
--kind value, -k value [ --kind value, -k value ] only accept events with these kind numbers
--limit value, -l value only accept up to this number of events (default: 0)
--since value, -s value only accept events newer than this (unix timestamp) (default: 0)
--tag value, -t value [ --tag value, -t value ] takes a tag like -t e=<id>, only accept events with these tags
--until value, -u value only accept events older than this (unix timestamp) (default: 0)
-e value [ -e value ] shortcut for --tag e=<value>
-p value [ -p value ] shortcut for --tag p=<value>
~> nak count --help
NAME:
nak count - generates encoded COUNT messages and optionally use them to talk to relays
USAGE:
nak count [command options] [relay...]
DESCRIPTION:
outputs a NIP-45 request. Mostly same as req.
example usage (with 'nostcat'):
nak count -k 1 -a 3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d | nostcat wss://nos.lol
standalone:
nak count -k 1 wss://nos.lol
OPTIONS:
--bare when printing the filter, print just the filter, not enveloped in a ["COUNT", ...] array (default: false)
--stream keep the subscription open, printing all events as they are returned (default: false, will close on EOSE)
FILTER ATTRIBUTES
--author value, -a value [ --author value, -a value ] only accept events from these authors (pubkey as hex)
--id value, -i value [ --id value, -i value ] only accept events with these ids (hex)
--kind value, -k value [ --kind value, -k value ] only accept events with these kind numbers
--limit value, -l value only accept up to this number of events (default: 0)
--since value, -s value only accept events newer than this (unix timestamp) (default: 0)
--tag value, -t value [ --tag value, -t value ] takes a tag like -t e=<id>, only accept events with these tags
--until value, -u value only accept events older than this (unix timestamp) (default: 0)
-e value [ -e value ] shortcut for --tag e=<value>
-p value [ -p value ] shortcut for --tag p=<value>
~> nak decode --help
NAME:
nak decode - decodes nip19, nip21, nip05 or hex entities
USAGE:
nak decode [command options] <npub | nprofile | nip05 | nevent | naddr | nsec>
DESCRIPTION:
example usage:
nak decode npub1uescmd5krhrmj9rcura833xpke5eqzvcz5nxjw74ufeewf2sscxq4g7chm
nak decode nevent1qqs29yet5tp0qq5xu5qgkeehkzqh5qu46739axzezcxpj4tjlkx9j7gpr4mhxue69uhkummnw3ez6ur4vgh8wetvd3hhyer9wghxuet5sh59ud
nak decode nprofile1qqsrhuxx8l9ex335q7he0f09aej04zpazpl0ne2cgukyawd24mayt8gpz4mhxue69uhk2er9dchxummnw3ezumrpdejqz8thwden5te0dehhxarj94c82c3wwajkcmr0wfjx2u3wdejhgqgcwaehxw309aex2mrp0yhxummnw3exzarf9e3k7mgnp0sh5
nak decode nsec1jrmyhtjhgd9yqalps8hf9mayvd58852gtz66m7tqpacjedkp6kxq4dyxsr
OPTIONS:
--id, -e return just the event id, if applicable (default: false)
--pubkey, -p return just the pubkey, if applicable (default: false)
--help, -h show help
~> nak encode --help
NAME:
nak encode - encodes notes and other stuff to nip19 entities
USAGE:
nak encode command [command options] [arguments...]
DESCRIPTION:
example usage:
nak encode npub <pubkey-hex>
nak encode nprofile <pubkey-hex>
nak encode nprofile --relay <relay-url> <pubkey-hex>
nak encode nevent <event-id>
nak encode nevent --author <pubkey-hex> --relay <relay-url> --relay <other-relay> <event-id>
nak encode nsec <privkey-hex>
COMMANDS:
npub encode a hex private key into bech32 'npub' format
nsec encode a hex private key into bech32 'nsec' format
nprofile generate profile codes with attached relay information
nevent generate event codes with optionally attached relay information
naddr generate codes for NIP-33 parameterized replaceable events
help, h Shows a list of commands or help for one command
OPTIONS:
--help, -h show help
### fetch an event using relay and author hints automatically from a nevent1 code, pretty-print it
```shell
nak fetch nevent1qqs2e3k48vtrkzjm8vvyzcmsmkf58unrxtq2k4h5yspay6vhcqm4wqcpz9mhxue69uhkummnw3ezuamfdejj7q3ql2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqxpqqqqqqz7ttjyq | jq
{
"id": "acc6d53b163b0a5b3b18416370dd9343f26332c0ab56f42403d26997c0375703",
"pubkey": "fa984bd7dbb282f07e16e7ae87b26a2a7b9b90b7246a44771f0cf5ae58018f52",
"created_at": 1697370933,
"kind": 1,
"tags": [],
"content": "`q` tags = a kind 1 that wanted to be a kind:6 but fell short\n\n🥁",
"sig": "b5b63d7c8491a4a0517df2c58151665c583abc6cd31fd50b957bf8fefc8e55c87c922cbdcb50888cb9f1c03c26ab5c02c1dccc14b46b78e1e16c60094f2358da"
}
```
written in go using [go-nostr](https://github.com/nbd-wtf/go-nostr), heavily inspired by [nostril](http://git.jb55.com/nostril/).
## a toolkit for debugging all things nostr as a webpage:
![](https://user-images.githubusercontent.com/1653275/227681805-0cd20b39-de0d-4fcb-abb4-de3283404e8f.png)
written in [scala](https://scala-lang.org/) with [calico](https://www.armanbilge.com/calico/) and [snow](https://github.com/fiatjaf/snow)
### republish an event from one relay to multiple others
```shell
~> nak req -i e20978737ab7cd36eca300a65f11738176123f2e0c23054544b18fe493e2aa1a wss://nostr.wine/ wss://nostr-pub.wellorder.net | nak event wss://nostr.wine wss://offchain.pub wss://public.relaying.io wss://eden.nostr.land wss://atlas.nostr.land wss://relayable.org
{"id":"e20978737ab7cd36eca300a65f11738176123f2e0c23054544b18fe493e2aa1a","pubkey":"c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5","created_at":1698632753,"kind":1,"tags":[["t","gm"]],"content":"good morning","sig":"5687c1a97066c349cb3bde0c0719fd1652a13403ba6aca7557b646307ee6718528cd86989db08bf6a7fd04bea0b0b87c1dd1b78c2d21b80b80eebab7f40b8916"}
publishing to wss://nostr.wine... failed: msg: blocked: not an active paid member
publishing to wss://offchain.pub... success.
publishing to wss://public.relaying.io... success.
publishing to wss://eden.nostr.land... failed: msg: blocked: not on white-list
publishing to wss://atlas.nostr.land... failed: msg: blocked: not on white-list
publishing to wss://relayable.org... success.
```